Hazard Plain Automated baseline

Lycoming County, PA

Risk-assessment baseline packet

County FIPS:
42081
Release:
2026-10
Data as of:
2026-09-30
Storm Events data through:
2026-06-30

Hazard Plain is an independent product built from public federal data. It is not a FEMA document and is not reviewed or endorsed by FEMA or any state agency.

Hazard Plain release 2026-10, as of 2026-09-30.

Summary

Plan status as of 2026-09-30: Approved, expires 2031-02-25. Plan: Lycoming County Hazard Mitigation Plan (FEMA plan 111511), approved 2026-02-26.

Since the plan was approved on 2026-02-26: no new hazard declaration and 13 NOAA Storm Events records; details under "What changed since your last plan".

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($34,822,821 a year), Strong Wind ($1,745,441) and Tornado ($1,244,841).

The tables that follow are organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B (B1-a to B2-c); each heading says which item its tables support.

Plan clock

Status:
Approved, expires 2031-02-25
Plan:
Lycoming County Hazard Mitigation Plan (FEMA plan 111511)
Approved:
2026-02-26
Days to expiry:
1,609

What changed since your last plan (approved 2026-02-26)

New federal declarations:
none
Storm Events records since approval:
13 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 50, SRL 109 (44 CFR 77.2); any definition: 545
Repeat-flood change:
this release sets the baseline count.

Sources: 1, 2, 4, 6 (numbered list at the end)

Plan status for every jurisdiction listed in this county: 54 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this county" on the following pages.

State plan status and tribal plans in this state: see the state page.

Plan clock

Plan status for every jurisdiction listed in this county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Lycoming CountyCountyApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609
Duboistown boroughOrganized BoroughApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-05-27
Hughesville boroughOrganized BoroughApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-05-11
Jersey Shore boroughOrganized BoroughApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-04-13
Montgomery boroughOrganized BoroughPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Montoursville boroughOrganized BoroughApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-05-04
Muncy boroughOrganized BoroughApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-04-15
Picture Rocks boroughOrganized BoroughPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Salladasburg boroughOrganized BoroughApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-05-26
South Williamsport boroughOrganized BoroughPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Williamsport cityCityApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-03-19
Anthony townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Armstrong townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-04-09
Bastress townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Brady townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Brown townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-06-09
Cascade townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Clinton townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-04-13
Cogan House townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Cummings townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-04-14
Eldred townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Fairfield townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Franklin townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Gamble townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Hepburn townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Jackson townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Jordan townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Lewis townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Limestone townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Loyalsock townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-03-24
Lycoming townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
McHenry townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
McIntyre townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-04-06
McNett townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-04-07
Mifflin townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Mill Creek townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Moreland townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Muncy Creek townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-05-18
Muncy townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Nippenose townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Old Lycoming townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-04-15
Penn townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Piatt townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-05-05
Pine townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-05-14
Plunketts Creek townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Porter townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Shrewsbury townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Susquehanna townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Upper Fairfield townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Washington townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Watson townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-05-21
Wolf townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-04-13
Woodward townshipTownshipApproved, expires 2031-02-25Lycoming County Hazard Mitigation Plan (FEMA plan 111511)2026-02-262031-02-251,609this jurisdiction approved 2026-04-08
River Valley Transit AuthorityTransit/AirportPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleLycoming County Hazard Mitigation Plan (FEMA plan 111511), pending adoption here2026-02-26 by FEMA; not yet adopted here2031-02-25 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.

Supports FEMA checklist item B1-a: hazard identification

Hazards NRI does not cover (local data needed)

  • dam failure (incl. upstream dams)
  • levee failure
  • flash flood as its own subtype
  • ice jams
  • debris flows
  • erosion (riverine and coastal)
  • land subsidence and sinkholes
  • expansive soils

The 18 National Risk Index hazards, ranked by expected annual loss (EAL)

Sources: 5, 6

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL total (see note)modeled dollars per yearStorm Events records, 1996 to 2026-06-30countStorm Events coverage note
1Inland FloodingRelatively ModerateRelatively Moderate$32,131,178$54,122$2,637,521$34,822,82176
2Strong WindRelatively HighRelatively High$112,521$829$1,632,091$1,745,441356Includes 16 High Wind and 2 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
3TornadoRelatively LowRelatively Low$688,808$828$555,206$1,244,84121
4HurricaneRelatively LowRelatively Low$861,619$81,596$42,649$985,8641
5Cold WaveRelatively LowRelatively Low$872$129$478,535$479,53621
6LightningRelatively ModerateRelatively Moderate$6,233n/a$466,219$472,4521
7Heat WaveRelatively LowRelatively Lowunder $1$4,264$416,817$421,0815
8Winter WeatherRelatively HighRelatively High$21,023$32$353,965$375,02088
9EarthquakeVery LowVery Low$209,256n/a$40,320$249,577Storm Events does not record earthquakes.
10HailVery LowVery Low$15,435$2,354$40,486$58,27690
11LandslideRelatively LowRelatively Low$7,400n/a$16,379$23,7790No recorded events in Storm Events since 1996 (data through 2026-06-30).
12AvalancheRelatively LowVery Lowunder $1n/a$16,057$16,0580No recorded events in Storm Events since 1996 (data through 2026-06-30).
13WildfireVery LowVery Low$9,376$11$2,453$11,8400No recorded events in Storm Events since 1996 (data through 2026-06-30).
14Ice StormVery LowVery Low$5,582n/a$732$6,31313
15DroughtNo RatingNo Expected Annual Lossesn/a$0n/a$07

Total = buildings + agriculture + population equivalence; FEMA values each expected death (or 10 injuries) at $13.7 million (2024 dollars).

NRI risk rating combines expected annual loss with social vulnerability and community resilience; EAL rating rates expected annual loss alone. Both compare this county with all U.S. counties.

Local data needed: state and local landslide and wildfire records (Storm Events records these hazards only in part).

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: coastal flooding, tsunami and volcanic activity. That is the evidence for leaving them out of the plan.

The state hazard mitigation plan also lists hazards for this county; FEMA asks the plan to explain any hazard it leaves out.

Supports FEMA checklist item B1-b: hazard location

Affects the whole county (national data give no location within it): Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather.

Inland Flooding: The FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.

Hazards that vary within the county: highest-rated census tracts

Source: 5

HazardHighest-rated census tractsNRI risk rating, score 0 to 100
Avalanchetract 117.02 (Very Low, 69.5); tract 104 (Very Low, 69.3); tract 105.02 (Very Low, 69.2)
Earthquaketract 108 (Relatively Low, 45.2); tract 119 (Relatively Low, 41.4); tract 106 (Very Low, 38.1)
Hurricanetract 108 (Relatively Low, 73.8); tract 106 (Relatively Low, 72.6); tract 104 (Relatively Low, 71.3)
Landslidetract 104 (Relatively Moderate, 96.6); tract 106 (Relatively Moderate, 96.2); tract 101 (Relatively Moderate, 96.0)
Tornadotract 108 (Relatively Moderate, 59.1); tract 106 (Relatively Moderate, 54.0); tract 111 (Relatively Moderate, 54.0)
Wildfiretract 112 (Relatively Low, 70.5); tract 106 (Relatively Low, 69.8); tract 101 (Very Low, 66.0)

Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 117.02 is Census Tract 117.02). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool

Supports FEMA checklist item B1-c: hazard extent

Extent: scale, observed range and worst recorded event per hazard

Sources: 6, 7

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Avalanchenone (count and damage only)0
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill21 records, 2004 to 2025 (21 zone-level)1 day to 4 days (median 2 days); 18 with a recorded value4 consecutive days, 2007-02-03 to 2007-02-06, zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0
DroughtU.S. Drought Monitor scale (D0 to D4)7 records, 1997 to 2020 (7 zone-level)1 day to 70 days (median 31.5 days); 4 with a recorded value70 days (about 2.3 months), 2020-09-22 to 2020-11-30, a run of 3 consecutive Storm Events drought records, zone-levelCountywide (zone-level records).Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)112 records, 1956 to 20240.75 in to 3 in (median 1 in); 110 with a recorded value3 in hail, 2019-05-28; same size also recorded on 1974-04-14Hail, 1999-07-30, property not reported; $500,000 crops (1999 dollars)Event records naming jurisdictions in the plan: Williamsport city (17 records), Muncy borough (10 records), Muncy township (10 records), Hughesville borough (8 records), Montgomery borough (7 records), Montoursville borough (4 records), Cogan House township (1 record), Picture Rocks borough (1 record), Salladasburg borough (1 record).
Excessive Heat, Heatheat index (in event narratives)5 records, 2006 to 2025 (5 zone-level)1 day to 3 days (median 2 days); 4 with a recorded value3 consecutive days, 2025-06-23 to 2025-06-25, zone-levelCountywide (zone-level records).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson1 record, 2003 (1 zone-level)Strongest recorded: Tropical Storm record, 2003-09-18 to 2003-09-19, damage not reported; NWS zone PAZ046Countywide (zone-level records).Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records.
Ice StormSperry-Piltz ice scale (local data)13 records, 1997 to 2022 (13 zone-level)No damage reported in 13 records.Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)76 records, 1996 to 2025 (21 zone-level)Flash Flood, 2016-10-21, $26,000,000 property; $445,000 crops (2016 dollars)Event records naming jurisdictions in the plan: Muncy borough (8 records), Muncy township (8 records), Picture Rocks borough (5 records), Hughesville borough (2 records), Montgomery borough (2 records), Bastress township (1 record), Duboistown borough (1 record), Williamsport city (1 record). Zone-level records (21) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most.
Debris Flownone (count and damage only)0
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)1 record, 2024Lightning, 2024-04-14, $10,000 property; $0 crops (2024 dollars)No event record names a jurisdiction in the plan.Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)18 records, 1996 to 2022 (18 zone-level)35 kt (40 mph) to 71 kt (82 mph) (median 52 kt (60 mph)); 17 with a recorded value71 kt (82 mph) measured gust, High Wind, 2006-12-01, 1 direct death (reported for the zone); NWS zone PAZ046High Wind, 1999-09-16, $100,000 property; crops not reported (zone total, 1999 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)443 records, 1966 to 202639 kt (45 mph) to 87 kt (100 mph) (median 51 kt (59 mph)); 313 with a recorded value87 kt (100 mph) estimated gust, Thunderstorm Wind, 2016-06-28Event records naming jurisdictions in the plan: Williamsport city (36 records), Hughesville borough (26 records), Muncy borough (21 records), Muncy township (21 records), Montoursville borough (16 records), Montgomery borough (13 records), Picture Rocks borough (11 records), Duboistown borough (5 records), Moreland township (5 records), Jersey Shore borough (2 records); and 2 more jurisdictions (see the Excel file).
TornadoEnhanced Fujita (Fujita before Feb 2007)29 records, 1966 to 2022F/EF0 to F/EF3 (median F/EF1); 29 with a recorded valueF3 tornado, 1985-05-31, 11 mi path length (whole path, pre-1996), 910 yd wide, $25,000,000 property; crops not recorded (1985 dollars), 2 direct deaths, 20 direct injuriesEvent records naming jurisdictions in the plan: Hughesville borough (2 records), Montoursville borough (2 records), Picture Rocks borough (2 records), Jersey Shore borough (1 record), Muncy borough (1 record), Muncy township (1 record), Salladasburg borough (1 record).Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods).
Wildfireacres burned (local data)0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)88 records, 1996 to 2026 (88 zone-level)Heavy Snow, 2001-03-04, $4,000 property; crops not reported (2001 dollars); NWS zone PAZ041Countywide (zone-level records).

Where a hazard names more than 10 jurisdictions, the table lists the 10 with the most records; every one is in the Excel file, sheet "B1-c Extent".

In event narratives only (local data needed): wind chill, temperature, heat index, ice thickness, acres burned and snow depth; any physical measure of avalanche, debris flow and lightning.

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records from zones that no NWS zone-county file places in this county (mostly before 2020) are not counted here (the Methods page explains the zone matching).

Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 21 declarations covering 16 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2024-09-112024-08-09DR-4815-PAMajor disasterTropical Storm DebbyHurricane (primary); also designated: Inland Flooding$1,360,623.08within last 5 years
2020-03-302020-01-20DR-4506-PAMajor disasterCOVID-19 PandemicNon-natural, not counted$707,441.93
2020-03-132020-01-20EM-3441-PAEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4506
2018-11-272018-08-10DR-4408-PAMajor disasterSevere Storms and FloodingInland Flooding$1,465,650.88
2016-12-022016-10-20DR-4292-PAMajor disasterSevere Storms and FloodingInland Flooding$2,119,029.35
2012-10-292012-10-26EM-3356-PAEmergencyHurricane SandyHurricaneno Public Assistance recorded
2011-09-122011-09-03DR-4030-PAMajor disasterTropical Storm LeeInland Flooding (primary); also designated: Hurricane$4,589,423.80
2011-09-082011-09-03EM-3340-PAEmergencyRemnants of Tropical Storm LeeInland Flooding (primary); also designated: Hurricaneno Public Assistance recordedsame incident as DR-4030
2011-07-132011-04-25DR-4003-PAMajor disasterSevere Storms and FloodingInland Flooding$239,009.11
2005-09-102005-08-29EM-3235-PAEmergencyHurricane KatrinaHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
2004-09-192004-09-17DR-1557-PAMajor disasterTropical Depression IvanHurricane$1,159,900.02
2004-09-192004-09-08DR-1555-PAMajor disasterSevere Storms and Flooding Associated with Tropical Depression FrancesHurricane; Inland Flooding: designated for Hazard Mitigation only (no Public or Individual Assistance for this county); not countedPA not declared for this county
2003-03-142003-02-14EM-3180-PAEmergencySnowWinter Weather$156,909.45
1999-09-221999-09-06DR-1298-PAMajor disasterTropical Depression Dennis PaInland Flooding (primary); also designated: HurricanePA not declared for this county
1996-01-211996-01-19DR-1093-PAMajor disasterSevere Storms and FloodingInland Floodingno Public Assistance recorded
1996-01-131996-01-06DR-1085-PAMajor disasterBlizzard of 96Winter Weatherno Public Assistance recorded
1994-03-101994-01-04DR-1015-PAMajor disasterSevere Winter StormsWinter Weatherno Public Assistance recorded
1993-03-161993-03-13EM-3105-PAEmergencySevere Snowfall & Winter StormWinter Weatherno Public Assistance recorded
1985-06-031985-05-31DR-737-PAMajor disasterSevere Storms, High Winds & TornadoesTornado (primary); also designated: Strong Windno Public Assistance recorded
1975-09-261975-09-26DR-485-PAMajor disasterSevere Storms, Heavy Rains & FloodingInland Floodingno Public Assistance recorded
1972-06-231972-06-23DR-340-PAMajor disasterTropical Storm AgnesInland Flooding (primary); also designated: Hurricaneno Public Assistance recorded

County Public Assistance: applicants the FEMA record places in this county, including any state agencies FEMA files there; statewide rows are listed on the state page; federal share obligated, nominal dollars.

Statewide declarations

Source: 2

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
2003-08-232003-07-21DR-1485-PAMajor disasterSevere Storms, Tornadoes, and FloodingInland Flooding; Tornado
1959-01-231959-01-23DR-89-PAMajor disasterFloodsInland Flooding
1956-08-091956-08-09DR-61-PAMajor disasterStormHazard not mapped (severe storm title names no single hazard); not counted
1956-05-211956-05-21DR-58-PAMajor disasterSevere StormHazard not mapped (severe storm title names no single hazard); not counted
1956-03-151956-03-15DR-51-PAMajor disasterFloodInland Flooding
1955-08-201955-08-20DR-40-PAMajor disasterFloods & RainsInland Flooding

FEMA recorded these with designated area Statewide and no county, so they are listed on every county page in the state and not counted with county rows. Local data needed: whether each one affected this county.

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

HazardStorm Events records, all years on file(years in the Period column)Since plan approvalrecordsIn the 12 months before plan approvalrecordsLast 5 yearsrecordsDeclared incidents, all yearsseparate disastersDeclared since approvalseparate disastersPeriodStatement
Avalanche0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave21002001996 to 2026-06-30
Drought7000001996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail112002001955 to 2026-06-30
Heat Wave5022001996 to 2026-06-30
Hurricane1000601996 to 2026-06-30
Ice Storm13001001996 to 2026-06-30
Inland Flooding7601319901996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning1001001996 to 2026-06-30
Strong Wind461131482101955 to 2026-06-30Includes 16 High Wind and 2 Strong Wind records.
Tornado29001101950 to 2026-06-30
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather880212401996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2025-06-23Heat$0 property; $0 crops (zone total, 2025 dollars)0, 0NWS zone PAZ041 (NORTHERN LYCOMING), zone-levelin the 12 months before plan approval; within last 5 yearsB1-c worst recorded: Excessive Heat, Heat
2024-04-14Lightning$10,000 property; $0 crops (2024 dollars)0, 0(IPT)WILLIAMSPORT ARwithin last 5 yearsB1-c worst recorded: Lightning
2019-05-28Hail3 in$0 property; $0 crops (2019 dollars)0, 0LINDENB1-c worst recorded: Hail
2016-10-21Flash Flood$26,000,000 property; $445,000 crops (2016 dollars)0, 0BODINES to STEAM VLYB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2016-06-28Thunderstorm Wind87 kt (100 mph) estimated gust$1,000,000 property; $0 crops (2016 dollars)0, 0MORELANDB1-c worst recorded: Thunderstorm Wind
2010-09-22Thunderstorm Wind70 kt (81 mph) estimated gust$15,000 property; $0 crops (2010 dollars)2, 0MUNCYdeaths or injuries recorded
2007-02-03Extreme Cold/Wind Chill$0 property; $0 crops (zone total, 2007 dollars)0, 0NWS zone PAZ041 (NORTHERN LYCOMING), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2006-12-01High Wind71 kt (82 mph) measured gust$5,000 property; $0 crops (zone total, 2006 dollars)1, 0NWS zone PAZ046 (SOUTHERN LYCOMING), zone-levelB1-c worst recorded: High Wind and Strong Wind
2003-09-18Tropical Stormdamage not reported0, 0NWS zone PAZ046 (SOUTHERN LYCOMING), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2001-03-04Heavy Snow$4,000 property; crops not reported (zone total, 2001 dollars)0, 0NWS zone PAZ041 (NORTHERN LYCOMING), zone-levelB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
1996-01-19Flash Flooddamage not reported6, 0COUNTYWIDEdeaths or injuries recorded
1985-05-31TornadoF3, 11 mi path length (whole path, pre-1996), 910 yd wide$25,000,000 property; crops not recorded (1985 dollars)2, 20location not recordeddeaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (814 rows).

Location is the place NOAA recorded, as written in its data; it need not be a jurisdiction in this plan.

Local data needed: state-declared emergencies, from your state emergency management agency (federal data do not include them).

FEMA's declaration data list no tribal or special-area declarations for this state.

Supports FEMA checklist item B1-e: probability of future events

Probability: FEMA annualized frequency and descriptor per hazard

Sources: 5, 6

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Avalanche0.01events per yearabout 1 in 100 yearsPossibleFEMA annualized frequency (modeled)01994 to 2023 (30 years)see B1-f0.01 is NRI's minimum avalanche frequency for a county in an avalanche susceptibility zone; NRI records no avalanche here, so the descriptor reflects the floor, not local events.
Cold Wave2.82event-days per yearabout 2.82 days per yearLikelyStorm Events event-days in 11 of 30 years, 1996 to 2025 (36.7%)53.52005-11-12 to 2024-11-12 (19 years)countywide
Drought0event-days per yearnone modeledLikelyStorm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%)02000 to 2025 (25.25 years; D3 and D4 only)countywideNRI models no drought event-days here (2000 to 2025, 25.25 years; D3 and D4 only); Storm Events has a record in 4 of 30 years. The descriptor comes from Storm Events, which counts D2 drought that NRI leaves out.
Earthquake0.000645annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0645%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail1.42events per yearabout 1.42 per yearHighly likelyFEMA annualized frequency (modeled)54.0 (modeled)1986 to 2023 (38 years)countywide
Heat Wave1.51event-days per yearabout 1.51 days per yearLikelyStorm Events event-days in 3 of 30 years, 1996 to 2025 (10%)26.92005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.0404events per yearabout 1 in 25 yearsPossibleFEMA annualized frequency (modeled)161851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Ice Storm0.0492event-days per yearabout 0.0492 days per yearLikelyStorm Events event-days in 10 of 30 years, 1996 to 2025 (33.3%)31946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding1.89event-days per yearabout 1.89 days per yearLikelyStorm Events event-days in 22 of 30 years, 1996 to 2025 (73.3%)531996 to 2023 (28 years)see B1-f
Landslide1.53events per year (modeled)about 1.53 per yearHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning32.8days per year with a strikeabout 32.8 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind2.39events per yearabout 2.39 per yearHighly likelyFEMA annualized frequency (modeled)911986 to 2023 (38 years)countywide
Tornado0.386events per yearabout 1 in 3 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.000117annual probability at a locationchance a given location in the county burns in a year: 0.0117%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Winter Weather13.9event-days per yearabout 13.9 days per yearHighly likelyStorm Events event-days in 27 of 30 years, 1996 to 2025 (90%)2632005-11-12 to 2024-11-12 (19 years)countywide

FEMA annualized frequency (modeled) is the National Risk Index v1.20 (December 2025) estimate of how often a hazard affects this county in a year; it is not recorded events divided by years, and its unit differs by hazard (events, event-days, or days with a lightning strike per year). For earthquake, wildfire, coastal flooding and tsunami the value is the chance (or number of events) at a location in the county, not across the county, so no "1 in N years" is given and the descriptor comes from Storm Events where it has a record (none for earthquake). The Methods page gives each hazard's method, from FEMA's National Risk Index Technical Documentation v1.20.

Where NRI gives event-days, the descriptor comes from the share of years with a Storm Events record; NRI's source records more events, so the two differ.

Descriptor scale used in this packet (defined per unit)

Sources: 5, 6

UnitDescriptorDefinition
events per yearHighly likely1 or more per year
events per yearLikelyabout once in 1 to 10 years
events per yearPossibleabout once in 10 to 100 years
events per yearUnlikelyless than once in 100 years
annual probabilityLikely10% to under 100% chance in a given year
annual probabilityPossible1% to under 10% chance in a given year
annual probabilityUnlikelyunder 1% chance in a given year
event-days (share of years)Highly likelyevent-days recorded in 90% or more of years
event-days (share of years)Likelyevent-days recorded in 10% to under 90% of years
event-days (share of years)Possibleevent-days recorded in some years but under 10% of years
lightning strike-daysHighly likelycloud-to-ground strikes on 1 or more days per year

Intensity bands: historical frequency (Storm Events)

Source: 6

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202541301.37
Hail2.00 in+1996 to 20252300.0667
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 2025280309.33
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 202510300.333
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 202535301.17
TornadoEF0-11996 to 202520300.667
TornadoEF2-31996 to 20251300.0333
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

The bands show how often events of each severity were recorded in this county, to profile how severe events have been (FEMA's probability item asks for the range of intensities).

Hail smaller than 1 inch is not counted: on 2010-01-05 the National Weather Service raised its severe-hail threshold from 3/4 inch to 1 inch, so smaller reports became less common after 2009 (NWS Service Change Notice 09-52). NRI hail frequency uses a 0.75 inch threshold.

Optional: future conditions. Not a required item in the 2025 FEMA Local Mitigation Planning Policy Guide; some states ask for it. The federal Climate Mapping for Resilience and Adaptation (CMRA) site gives county exposure to future climate conditions (https://resilience.climate.gov/).

Supports FEMA checklist item B1-f: hazards that vary across jurisdictions

Range of census tract risk within the county

Source: 5

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Avalanche13 of 3266.668.769.5Very Low 13, Not Applicable 19
Cold Wave32 of 3220.327.638.1Relatively Low 32
Drought0 of 32No Rating 32
Earthquake32 of 327.023.645.2Relatively Low 2, Very Low 30
Hail32 of 3212.028.042.2Relatively Low 3, Very Low 29
Heat Wave32 of 322.718.040.1Relatively Low 18, Very Low 14
Hurricane32 of 3250.162.073.8Relatively Low 31, Very Low 1
Ice Storm32 of 320.92.216.3Very Low 32
Inland Flooding32 of 328.978.699.2Very High 2, Relatively High 14, Relatively Moderate 6, Relatively Low 8, Very Low 2
Landslide32 of 3212.980.796.6Relatively Moderate 4, Relatively Low 12, Very Low 16
Lightning32 of 3225.455.581.0Relatively High 2, Relatively Moderate 22, Relatively Low 8
Strong Wind32 of 3248.280.293.0Relatively High 14, Relatively Moderate 16, Relatively Low 2
Tornado32 of 3220.539.859.1Relatively Moderate 3, Relatively Low 26, Very Low 3
Wildfire31 of 3221.351.170.5Relatively Low 2, Very Low 29, No Rating 1
Winter Weather32 of 3258.583.194.3Relatively High 26, Relatively Moderate 6

Rated tracts only: No Rating (score 0.0), Not Applicable and Insufficient Data tracts are counted but not used for the minimum, median and maximum.

The score ranks a tract against all U.S. tracts (100 = highest). The rating is FEMA's category for the tract's risk value, computed differently, so the two can disagree.

Frequency data for cold wave, hail, heat wave, ice storm, lightning, strong wind and winter weather are county-wide or coarse (49 km grid or NWS zone), the same for every jurisdiction; the tract range mostly reflects where buildings and people are.

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
Lycoming CountyCountyApproved, expires 2031-02-25$483,310.570 total; 0 since its planNo NFIP community ID on this jurisdiction's plan row. Includes $261,980.23 for declarations not counted as hazard incidents (DR-4506-PA).
Duboistown boroughOrganized BoroughApproved, expires 2031-02-25FMA RL 0, SRL 1; any 5$13,705.506 total; 0 since its plan
Hughesville boroughOrganized BoroughApproved, expires 2031-02-25FMA RL 0, SRL 0; any 1$40,516.3238 total; 0 since its plan
Jersey Shore boroughOrganized BoroughApproved, expires 2031-02-25FMA RL 1, SRL 0; any 30$50,366.123 total; 0 since its plan
Montgomery boroughOrganized BoroughPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 1, SRL 3; any 19$13,256.5822 total; no approved plan
Montoursville boroughOrganized BoroughApproved, expires 2031-02-25FMA RL 1, SRL 1; any 26$335,077.0822 total; 0 since its plan
Muncy boroughOrganized BoroughApproved, expires 2031-02-25FMA RL 4, SRL 9; any 69$79,595.8340 total; 0 since its plan
Picture Rocks boroughOrganized BoroughPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$47,418.1219 total; no approved plan
Salladasburg boroughOrganized BoroughApproved, expires 2031-02-25FMA RL 0, SRL 0; any 1$14,018.204 total; 0 since its plan
South Williamsport boroughOrganized BoroughPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 6$60,002.910 total; no approved plan
Williamsport cityCityApproved, expires 2031-02-25FMA RL 1, SRL 4; any 14$321,248.9454 total; 0 since its plan
Anthony townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$79,281.590 total; no approved plan
Armstrong townshipTownshipApproved, expires 2031-02-25FMA RL 0, SRL 0; any 5$3,076.840 total; 0 since its plan
Bastress townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0no Public Assistance recorded1 total; no approved plan
Brady townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$4,549.570 total; no approved plan
Brown townshipTownshipApproved, expires 2031-02-25FMA RL 0, SRL 1; any 1$2,820.980 total; 0 since its plan
Cascade townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$157,218.590 total; no approved plan
Clinton townshipTownshipApproved, expires 2031-02-25FMA RL 0, SRL 0; any 5$17,243.760 total; 0 since its plan
Cogan House townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$40,951.702 total; no approved plan
Cummings townshipTownshipApproved, expires 2031-02-25FMA RL 1, SRL 1; any 8$21,527.930 total; 0 since its plan
Eldred townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 1$110,370.530 total; no approved plan
Fairfield townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 1, SRL 2; any 9$105,738.360 total; no approved plan
Franklin townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$119,673.550 total; no approved plan
Gamble townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 1, SRL 1; any 2$461,325.650 total; no approved plan
Hepburn townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 5, SRL 11; any 37$145,011.890 total; no approved plan
Jackson townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$29,788.020 total; no approved plan
Jordan townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$249,734.940 total; no approved plan
Lewis townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 4, SRL 8; any 26$1,775,730.070 total; no approved plan
Limestone townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$49,667.090 total; no approved plan
Loyalsock townshipTownshipApproved, expires 2031-02-25FMA RL 4, SRL 9; any 38$798,566.670 total; 0 since its plan
Lycoming townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 3, SRL 14; any 40$33,856.560 total; no approved plan
McHenry townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 3no Public Assistance recorded0 total; no approved plan
McIntyre townshipTownshipApproved, expires 2031-02-25FMA RL 0, SRL 3; any 13$209,803.370 total; 0 since its plan
McNett townshipTownshipApproved, expires 2031-02-25FMA RL 0, SRL 0; any 1no Public Assistance recorded0 total; 0 since its plan
Mifflin townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 1$5,095.100 total; no approved plan
Mill Creek townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$420,070.640 total; no approved plan
Moreland townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 1$286,351.635 total; no approved plan
Muncy Creek townshipTownshipApproved, expires 2031-02-25FMA RL 4, SRL 4; any 25$457,850.030 total; 0 since its plan
Muncy townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 1$4,918.8940 total; no approved plan
Nippenose townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$13,1820 total; no approved plan
Old Lycoming townshipTownshipApproved, expires 2031-02-25FMA RL 6, SRL 25; any 82$201,565.560 total; 0 since its plan
Penn townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 2$250,147.090 total; no approved plan
Piatt townshipTownshipApproved, expires 2031-02-25FMA RL 2, SRL 1; any 9$96,559.510 total; 0 since its plan
Pine townshipTownshipApproved, expires 2031-02-25FMA RL 0, SRL 1; any 3$71,493.160 total; 0 since its plan
Plunketts Creek townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 2, SRL 3; any 23$1,552,897.640 total; no approved plan
Porter townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 2$98,802.080 total; no approved plan
Shrewsbury townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 1$176,363.570 total; no approved plan
Susquehanna townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 1, SRL 0; any 6no Public Assistance recorded0 total; no approved plan
Upper Fairfield townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 7, SRL 4; any 17$65,213.180 total; no approved plan
Washington townshipTownshipPlan 111511 approved 2026-02-26, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0$350,593.630 total; no approved plan
Watson townshipTownshipApproved, expires 2031-02-25FMA RL 0, SRL 1; any 5$44,900.600 total; 0 since its plan
Wolf townshipTownshipApproved, expires 2031-02-25FMA RL 0, SRL 0; any 0$17,192.420 total; 0 since its plan
Woodward townshipTownshipApproved, expires 2031-02-25FMA RL 1, SRL 2; any 7no Public Assistance recorded0 total; 0 since its plan

Repetitive-loss counts are for whole NFIP communities, which can extend beyond this county (see the note in B2-c).

School districts and special districts get a plan clock row only.

County Public Assistance in B1-d also includes applicants filed under the county that are not jurisdictions in this plan (for example state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.

Supports FEMA checklist items B2-a and B2-b: vulnerability and potential impacts

Local data needed

The table below gives county-level starting figures; the plan describes impacts for each jurisdiction and its own assets.

  • Critical facilities and lifelines per hazard
  • A problem statement per jurisdiction per hazard
  • Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
  • Future assets

County-level starter: exposure, expected annual loss and damage since the plan

Sources: 1, 2, 3, 5, 6, 7

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since 2026-02-26county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Avalanche$991,198n/a4under $1n/a$16,057under 0.0001%
Cold Wave$24,529,001,473$82,048,927114,105$872$129$478,535under 0.0001%
Droughtn/a$0n/an/a$0n/aagriculture exposure is 0 in NRI
Earthquake$43,898,209,670n/a114,188$209,256n/a$40,3200.000477%
Hail$24,529,002,479$82,048,927114,105$15,435$2,354$40,486under 0.0001%
Heat Wave$24,529,001,473$82,048,927114,105under $1$4,264$416,817under 0.0001%
Hurricane$24,515,375,530$81,523,561114,008$861,619$81,596$42,6490.00351%
Ice Storm$24,529,002,479n/a114,105$5,582n/a$732under 0.0001%
Inland Flooding$24,506,778,305$12,026,4269,398$32,131,178$54,122$2,637,521n/a (see note)NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b.
Landslide$1,598,647,733n/a6,590$7,400n/a$16,3790.000463%
Lightning$24,529,002,479n/a114,105$6,233n/a$466,219under 0.0001%
Strong Wind$24,529,002,479$82,048,927114,105$112,521$829$1,632,0910.000459%$52,500
Tornado$24,529,002,479$82,048,927114,105$688,808$828$555,2060.00281%
Wildfire$3,452,318,459$12,464,69918,601$9,376$11$2,4530.000272%
Winter Weather$24,529,001,473$82,048,927114,105$21,023$32$353,965under 0.0001%

Totals since 2026-02-26 (Storm Events through 2026-06-30): 13 county-coded records, 13 with a damage value recorded (including $0), $52,500; 0 zone-level records, 0 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: no counted declaration since the plan.

FEMA does not split Public Assistance by hazard. A declaration mapped to several hazards is listed under each of them with its full amount, so the per-hazard column does not add up to the total; the unit total counts each declaration once.

NRI computes earthquake exposure on its own basis, so it exceeds the county building value in B2-a.

Supports FEMA checklist item B2-a: vulnerability (county context)

County context

Source: 5

MeasureValue
Population114,105
Building value (total, not at risk)$24,529,002,479
Agriculture value (total, not at risk)$82,048,927
NRI risk rating (all hazards)Relatively Low
Expected annual loss, buildings and agriculture, all hazards$34,213,467
Expected annual loss, population equivalence, all hazards (NRI values each statistical life at $13.7M; a modeled value of expected deaths and injuries, not property damage)$6,699,431
Social vulnerability ratingRelatively Moderate
Community resilience ratingVery High
NRI versionDecember 2025

FEMA's all-hazard expected annual loss adds buildings, agriculture and population equivalence; this table gives the property part and the population-equivalence part as separate rows.

Social vulnerability: higher means people are more likely to be harmed and slower to recover. Community resilience: lower means the community is less able to recover. High social vulnerability and low resilience both raise the NRI risk rating.

Supports FEMA checklist item B2-c: repetitive loss properties

Repetitive loss in this county, both definitions

Sources: 1, 4

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)50Severe repetitive loss, FMA definition (44 CFR 77.2)109
Repetitive loss, NFIP insurance definition518Severe repetitive loss, NFIP insurance definition83

The state NFIP coordinator's list, the source FEMA's Handbook names, often uses the NFIP insurance definition (second row).

Repeat-flood properties: county and state-level rows

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total50109518835451483
of which: Armstrong township0050504
of which: Brown township0111100
of which: Clinton township0050500
of which: Cummings township1170800
of which: Duboistown borough0151500
of which: Hepburn township5113483714
of which: Hughesville borough0010100
of which: Jersey Shore borough103003007
of which: Lewis township482572613
of which: Lycoming township31437114039
of which: McIntyre township031111312
of which: Montgomery borough131931904
of which: Montoursville borough112502614
of which: Muncy borough4968769010
of which: Muncy Creek township442332503
of which: Old Lycoming township625751982211
of which: Piatt township2191900
of which: Plunketts Creek township232012324
of which: Porter township0020201
of which: Salladasburg borough0010101
of which: South Williamsport borough0060603
of which: Susquehanna township1060600
of which: Upper Fairfield township741641711
of which: Watson township0151500
of which: Williamsport city141311410
of which: Woodward township1272700
of which: Pine township0131300
of which: Fairfield township1292904
of which: Gamble township1110201
of which: McHenry township0030300
of which: Loyalsock township493893816
of which: Shrewsbury township0010100
of which: Eldred township0010101
of which: Moreland township0010100
of which: Muncy township0010100
of which: Penn township0020200
of which: Mifflin township0010100
of which: McNett township0010100
Statewide, no county in FEMA's file0010100

The statewide row counts properties FEMA's file gives with no county in this state; they are listed for reference and are not in this county's counts.

Repeat-flood properties by jurisdiction in the plan (NFIP community)

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
Duboistown borough4206390151500
Hughesville borough4206410010100
Jersey Shore borough420642103003007
Montgomery borough420646131931904
Montoursville borough420648112502614
Muncy borough4206494968769010
Picture Rocks borough4206540000000
Salladasburg borough4206570010101
South Williamsport borough4206580060603
Williamsport city420662141311410
Anthony township4209710000000
Armstrong township4206350050504
Bastress township4224720000000
Brady township4211690000000
Brown township4206360111100
Cascade township4218370000000
Clinton township4206370050500
Cogan House township4218380000000
Cummings township4206381170800
Eldred township4218390010101
Fairfield township4209721292904
Franklin township4209730000000
Gamble township4209741110201
Hepburn township4206405113483714
Jackson township4226010000000
Jordan township4225960000000
Lewis township420643482572613
Limestone township4225880000000
Loyalsock township421040493893816
Lycoming township42064431437114039
McHenry township4209750030300
McIntyre township420645031111312
McNett township4225970010100
Mifflin township4225900010100
Mill Creek township4218450000000
Moreland township4218460010100
Muncy Creek township420650442332503
Muncy township4218470010100
Nippenose township4206510000000
Old Lycoming township420652625751982211
Penn township4218480020200
Piatt township4206532191900
Pine township4209540131300
Plunketts Creek township420655232012324
Porter township4206560020201
Shrewsbury township4211480010100
Susquehanna township4206591060600
Upper Fairfield township420660741641711
Washington township4226130000000
Watson township4206610151500
Wolf township4206630000000
Woodward township4206641272700

Counts by occupancy group for each jurisdiction are in the Excel file, sheet "B2-c Jurisdictions".

Jurisdiction rows are whole NFIP communities and need not add up to the county total: a community that extends into another county is counted in full on each jurisdiction row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Sources: 1, 4

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential4697436744621374
2 to 4 unit residential174254312
other residential0030300
non-residential353743707
not reported0000000

FEMA's occupancy groups have no institutional class; institutional properties are counted in non-residential or other residential in the table by occupancy group.

FMA RL and FMA SRL are the Flood Mitigation Assistance definitions (44 CFR 77.2), the ones the FEMA Local Mitigation Planning Policy Guide cites. NFIP repetitive loss (the FEMA insurance definition) is 2 or more claims over $1,000 in 10 years, and a property can leave that group once it is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured. The Methods page gives the OpenFEMA field details.

Counts are aggregates of FEMA's public NFIP Multiple Loss Properties file (FEMA's data date 2026-08-02; file version 2026-08-04). No property is identified. County assignment is FEMA's geocode.

In this county 6 properties are FMA repetitive loss but not NFIP repetitive loss, and 474 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

Tables cite these sources by number. The full list, for the plan's bibliography (FEMA review item A4-a):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
  5. FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-30, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)
  6. NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-30, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/
  7. NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-30, https://www.weather.gov/gis/ZoneCounty
  8. U.S. Census Bureau, Census 2024 Gazetteer, 2020 place by county, CT county-to-cousub crosswalk, version 2024-gazetteer, pulled 2026-09-30, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_counties_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_cousubs_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_place_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_unsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_elsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_scsd_national.zip, https://www2.census.gov/geo/docs/reference/codes2020/national_place_by_county2020.txt, https://www2.census.gov/geo/docs/reference/ct_change/ct_cou_to_cousub_crosswalk.xlsx (used to match place names and codes; no table prints its values)

What this packet is and what the plan adds

This packet is the federal data for the plan's risk assessment (the summary on page 1 says how it is organized); the plan and FEMA's review decide whether each item is met.

The plan adds what only the community has: local data on assets, critical facilities, development and each jurisdiction's impacts; local hazard history, including state-declared emergencies; the mitigation strategy; and adoption.

How the federal data are built: National Risk Index values are FEMA's model, not counts of events. Storm Events is more complete from 1996; zone-level records are placed by forecast zone, not by location in the county. Public Assistance for a jurisdiction is matched by applicant name. The Methods page gives every rule and the known edge cases.

OpenFEMA disclaimer

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

Reuse, citation and corrections

Reuse and citation: Hazard Plain text and tables are licensed under Creative Commons Attribution 4.0 International (CC BY 4.0, https://creativecommons.org/licenses/by/4.0/); credit Hazard Plain and the release. The underlying federal data are public domain; OpenFEMA data are also subject to the OpenFEMA terms and conditions.

Cite this: Hazard Plain (2026). Lycoming County, PA: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 42081). Automated baseline. https://hazardplain.org/pa/42081/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Corrections: to report an error, name the packet, the table and what your records show. Contact: [email protected]