Hazard Plain Automated baseline

Cumberland County, PA

Risk-assessment baseline packet

County FIPS:
42041
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 2030-11-23. Plan: Cumberland County Hazard Mitigation Plan (FEMA plan 110756), approved 2025-11-24.

Since the plan was approved on 2025-11-24: no new hazard declaration and 15 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 ($49,697,015 a year), Hurricane ($5,985,643) and Strong Wind ($2,833,244).

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 2030-11-23
Plan:
Cumberland County Hazard Mitigation Plan (FEMA plan 110756)
Approved:
2025-11-24
Days to expiry:
1,515

What changed since your last plan (approved 2025-11-24)

New federal declarations:
none
Storm Events records since approval:
15 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 19, SRL 17 (44 CFR 77.2); any definition: 169
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: 34 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 expiryNotes
Cumberland CountyCountyApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-18
Camp Hill boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-10
Carlisle boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-01-08
Lemoyne boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-18
Mechanicsburg boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-06-16
Mount Holly Springs boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-08-12
New Cumberland boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-03-11
Newburg boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-01
Newville boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-11-25
Shippensburg boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515Also approved under plan 109334 (Franklin County Hazard Mitigation Plan, expires 2028-10-23). FEMA's plan status map shows one plan per jurisdiction and may show one of these; this packet uses the approved plan that expires last. this jurisdiction approved 2025-12-02
Shiremanstown boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-08-10
Wormleysburg boroughOrganized BoroughApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-09
Cooke townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-01-05
Dickinson townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-01-05
East Pennsboro townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-02-04
Hampden townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-04
Hopewell townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-07-06
Lower Allen townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-03-23
Lower Frankford townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-01-05
Lower Mifflin townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-18
Middlesex townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-19
Monroe townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-11
North Middleton townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-01-15
North Newton townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-03-03
Penn townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-04
Shippensburg townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-06
Silver Spring townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-17
South Middleton townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-11-25
South Newton townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-16
Southampton townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515
Upper Allen townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-03
Upper Frankford townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-03-31
Upper Mifflin townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2026-03-10
West Pennsboro townshipTownshipApproved, expires 2030-11-23Cumberland County Hazard Mitigation Plan (FEMA plan 110756)2025-11-242030-11-231,515this jurisdiction approved 2025-12-15

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$47,857,283$226,546$1,613,186$49,697,01582
2HurricaneRelatively ModerateRelatively Moderate$5,158,024$626,068$201,551$5,985,6431
3Strong WindRelatively HighRelatively High$204,497$49,489$2,579,258$2,833,244251Includes 19 High Wind and 9 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
4TornadoRelatively ModerateRelatively Moderate$2,117,487$3,148$590,574$2,711,20910
5Heat WaveRelatively ModerateRelatively Moderate$2$1,799$2,424,745$2,426,54611
6EarthquakeRelatively LowRelatively Low$1,835,075n/a$477,285$2,312,360Storm Events does not record earthquakes.
7Cold WaveRelatively LowRelatively Low$799$30,622$784,727$816,1484
8LightningRelatively ModerateRelatively Moderate$41,238n/a$699,513$740,7504
9Winter WeatherRelatively HighRelatively High$7,584$63$689,657$697,30467
10DroughtRelatively LowRelatively Lown/a$291,743n/a$291,7439
11Ice StormRelatively LowRelatively Low$24,356n/a$58,480$82,8365
12HailVery LowVery Low$4,154$49,299$987$54,44154
13WildfireVery LowVery Low$40,715$49$6,593$47,3582
14LandslideRelatively LowRelatively Low$8,247n/a$1,992$10,2390No recorded events in Storm Events since 1996 (data through 2026-06-30).
15AvalancheVery LowVery Low$0n/a$140$1400No recorded events in Storm Events since 1996 (data through 2026-06-30).

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 records (Storm Events records this hazard 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 130 (Very Low, 21.0); tract 102.01 (Very Low, 20.0); tract 131.03 (Very Low, 19.9)
Earthquaketract 124 (Relatively Moderate, 80.5); tract 125.01 (Relatively Low, 75.4); tract 118.03 (Relatively Low, 71.8)
Hurricanetract 130 (Relatively Moderate, 86.1); tract 118.03 (Relatively Moderate, 85.2); tract 125.01 (Relatively Moderate, 85.1)
Landslidetract 130 (Relatively Moderate, 95.9); tract 127.02 (Relatively Low, 94.8); tract 127.01 (Relatively Low, 92.5)
Tornadotract 124 (Relatively Moderate, 60.6); tract 125.01 (Relatively Moderate, 60.5); tract 118.03 (Relatively Moderate, 60.0)
Wildfiretract 126 (Relatively Low, 85.6); tract 127.02 (Relatively Low, 84.8); tract 131.05 (Relatively Low, 80.3)

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 130 is Census Tract 130). 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 chill4 records, 2007 to 2025 (4 zone-level)2 days; 3 with a recorded value2 consecutive days, 2025-01-21 to 2025-01-22, zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0
DroughtU.S. Drought Monitor scale (D0 to D4)9 records, 1997 to 2026 (9 zone-level)1 day to 78 days (median 50 days); 5 with a recorded value78 days (about 2.6 months), 2026-01-13 to 2026-03-31, 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)63 records, 1962 to 20260.75 in to 2.75 in (median 1 in); 61 with a recorded value2.75 in hail, 1976-06-01Event records naming jurisdictions in the plan: Carlisle borough (14 records), Shippensburg borough (8 records), Shippensburg township (8 records), Mechanicsburg borough (5 records), Newville borough (4 records), Shiremanstown borough (3 records), Camp Hill borough (1 record), Mount Holly Springs borough (1 record), New Cumberland borough (1 record), Newburg borough (1 record); and 1 more jurisdiction (see the Excel file).
Excessive Heat, Heatheat index (in event narratives)11 records, 1999 to 2025 (11 zone-level)1 day to 4 days (median 2 days); 9 with a recorded value4 consecutive days, 2006-07-31 to 2006-08-03, 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 PAZ063Countywide (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)5 records, 1998 to 2009 (5 zone-level)No damage reported in 5 records.Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)82 records, 1996 to 2025 (25 zone-level)Flood, 2011-09-07, $1,000,000 property; $0 crops (2011 dollars)Event records naming jurisdictions in the plan: Newburg borough (7 records), Carlisle borough (5 records), Mechanicsburg borough (5 records), New Cumberland borough (5 records), Camp Hill borough (3 records), Newville borough (3 records), Shippensburg borough (3 records), Shippensburg township (3 records), Mount Holly Springs borough (2 records), Shiremanstown borough (2 records). Zone-level records (25) 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)4 records, 2000 to 2023Lightning, 2000-10-04, damage not reported, 1 direct deathLightning, 2023-07-28, $10,000 property; $0 crops (2023 dollars)Event records naming jurisdictions in the plan: Lemoyne borough (1 record), Newville borough (1 record), Shippensburg borough (1 record), Shippensburg township (1 record).Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)28 records, 1998 to 2025 (28 zone-level)35 kt (40 mph) to 60 kt (69 mph) (median 50 kt (58 mph)); 26 with a recorded value60 kt (69 mph) estimated gust, High Wind, 2003-11-13; NWS zone PAZ063Strong Wind, 2025-05-31, $100,000 property; $0 crops (zone total, 2025 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)292 records, 1962 to 202650 kt (58 mph) to 85 kt (98 mph) (median 50 kt (58 mph)); 208 with a recorded value85 kt (98 mph), measurement type not recorded, Thunderstorm Wind, 1998-05-29Thunderstorm Wind, 2007-08-25, $125,000 property; $0 crops (2007 dollars)Event records naming jurisdictions in the plan: Carlisle borough (33 records), Shiremanstown borough (16 records), Mechanicsburg borough (15 records), Newville borough (15 records), Middlesex township (10 records), Shippensburg borough (10 records), Shippensburg township (10 records), Camp Hill borough (8 records), Mount Holly Springs borough (7 records), New Cumberland borough (5 records); and 4 more jurisdictions (see the Excel file).
TornadoEnhanced Fujita (Fujita before Feb 2007)17 records, 1961 to 2022F/EF0 to F/EF3 (median F/EF1); 17 with a recorded valueF3 tornado, 1961-04-16, 110 yd wide, $250,000 property; crops not recorded (1961 dollars)Tornado, 1991-04-09, $250,000 property; crops not recorded (1991 dollars)Event records naming jurisdictions in the plan: Lemoyne borough (1 record), Mechanicsburg borough (1 record), Newville borough (1 record), Shippensburg borough (1 record), Shippensburg township (1 record), Wormleysburg 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)2 records, 2025 (2 zone-level)Wildfire, 2025-04-23, $0 property; $1,100,000 crops (2025 dollars); NWS zone PAZ063Countywide (zone-level records).
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)67 records, 1996 to 2026 (67 zone-level)Winter Weather, 2025-12-26, $50,000 property; $0 crops (2025 dollars); NWS zone PAZ063Countywide (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: 19 declarations covering 14 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 dollarsNotes
2020-03-302020-01-20DR-4506-PAMajor disasterCOVID-19 PandemicNon-natural, not counted$15,077,587.54
2020-03-132020-01-20EM-3441-PAEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4506
2016-03-232016-01-22DR-4267-PAMajor disasterSevere Winter Storm and SnowstormWinter Weather$1,011,712.37
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$2,687.24FEMA's declaration record does not list Public Assistance, but FEMA's PA project summaries show obligations for this county
2011-09-082011-09-03EM-3340-PAEmergencyRemnants of Tropical Storm LeeInland Flooding (primary); also designated: Hurricane$92,746.91same incident as DR-4030
2010-04-162010-02-05DR-1898-PAMajor disasterSevere Winter Storms and SnowstormsWinter Weather$833,452.12
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$239,242.14
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$372,430.82
1996-09-131996-09-06DR-1138-PAMajor disasterFlooding Associated with Tropical Depression FranInland Flooding (primary); also designated: Hurricaneno Public Assistance recorded
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
1976-10-201976-10-20DR-523-PAMajor disasterSevere Storms & FloodingInland Floodingno 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 Wave4011001996 to 2026-06-30
Drought9505001996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail63205001955 to 2026-06-30
Heat Wave11033001996 to 2026-06-30
Hurricane1000501996 to 2026-06-30
Ice Storm5000001996 to 2026-06-30
Inland Flooding82023601996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning4001001996 to 2026-06-30
Strong Wind3203535001955 to 2026-06-30Includes 19 High Wind and 9 Strong Wind records.
Tornado17001001950 to 2026-06-30
Wildfire2022001996 to 2026-06-30
Winter Weather675214601996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2025-12-26Winter Weather$50,000 property; $0 crops (zone total, 2025 dollars)0, 0NWS zone PAZ063 (CUMBERLAND), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2025-01-21Cold/Wind Chill$0 property; $0 crops (zone total, 2025 dollars)0, 0NWS zone PAZ063 (CUMBERLAND), zone-levelin the 12 months before plan approval; within last 5 yearsB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2024-03-11Strong Wind48 kt (55 mph) estimated gust$40,000 property; $0 crops (zone total, 2024 dollars)1, 0NWS zone PAZ063 (CUMBERLAND), zone-levelwithin last 5 yearsdeaths or injuries recorded
2021-03-14Strong Wind35 kt (40 mph) estimated gust$15,000 property; $0 crops (zone total, 2021 dollars)1, 0NWS zone PAZ063 (CUMBERLAND), zone-leveldeaths or injuries recorded
2017-02-12Strong Wind43 kt (49 mph) estimated gust$0 property; $0 crops (zone total, 2017 dollars)1, 0NWS zone PAZ063 (CUMBERLAND), zone-leveldeaths or injuries recorded
2011-09-07Flood$1,000,000 property; $0 crops (2011 dollars)0, 0PLAINFIELD to TOLANDB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2006-07-31Heatdamage not reported0, 0NWS zone PAZ063 (CUMBERLAND), zone-levelB1-c worst recorded: Excessive Heat, Heat
2003-11-13High Wind60 kt (69 mph) estimated gustdamage not reported0, 0NWS zone PAZ063 (CUMBERLAND), zone-levelB1-c worst recorded: High Wind and Strong Wind
2003-09-18Tropical Stormdamage not reported0, 0NWS zone PAZ063 (CUMBERLAND), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2000-10-04Lightningdamage not reported1, 0NEWVILLEB1-c worst recorded: Lightning
1998-05-29Thunderstorm Wind85 kt (98 mph), measurement type not recordeddamage not reported0, 0NEWVILLEB1-c worst recorded: Thunderstorm Wind
1961-04-16TornadoF3, 110 yd wide$250,000 property; crops not recorded (1961 dollars)0, 0location not recordedB1-c worst recorded: Tornado

The full list is in the Excel file, sheet "B1-d Storm Events history" (585 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 Wave1.21event-days per yearabout 1.21 days per yearLikelyStorm Events event-days in 3 of 30 years, 1996 to 2025 (10%)232005-11-12 to 2024-11-12 (19 years)countywide
Drought0.406event-days per yearabout 0.406 days per yearLikelyStorm Events event-days in 3 of 30 years, 1996 to 2025 (10%)282000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.00105annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.105%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail2.45events per yearabout 2.45 per yearHighly likelyFEMA annualized frequency (modeled)92.9 (modeled)1986 to 2023 (38 years)countywide
Heat Wave4.63event-days per yearabout 4.63 days per yearLikelyStorm Events event-days in 6 of 30 years, 1996 to 2025 (20%)682005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.0697events per yearabout 1 in 14 yearsPossibleFEMA annualized frequency (modeled)261851 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 Storm0.56event-days per yearabout 0.56 days per yearLikelyStorm Events event-days in 5 of 30 years, 1996 to 2025 (16.7%)381946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding2.11event-days per yearabout 2.11 days per yearLikelyStorm Events event-days in 21 of 30 years, 1996 to 2025 (70%)591996 to 2023 (28 years)see B1-f
Landslide0.352events per year (modeled)about 1 in 3 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning36.6days per year with a strikeabout 36.6 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind5.12events per yearabout 5.12 per yearHighly likelyFEMA annualized frequency (modeled)1951986 to 2023 (38 years)countywide
Tornado0.285events per yearabout 1 in 4 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Wildfire0.0000741annual probability at a locationchance a given location in the county burns in a year: 0.00741%PossibleStorm Events records in 1 of 30 years, 1996 to 2025 (3.33%)not shownmodeledsee B1-f
Winter Weather12.2event-days per yearabout 12.2 days per yearHighly likelyStorm Events event-days in 27 of 30 years, 1996 to 2025 (90%)2312005-11-12 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 202526300.867
Hail2.00 in+1996 to 20251300.0333
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 2025193306.43
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20258300.267
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 202519300.633
TornadoEF0-11996 to 202510300.333
TornadoEF2-31996 to 20250300
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
Avalanche5 of 5517.419.921.0Very Low 5, Not Applicable 50
Cold Wave55 of 5519.726.938.5Relatively Low 55
Drought35 of 5566.877.295.4Relatively Moderate 4, Relatively Low 12, Very Low 19, No Rating 20
Earthquake55 of 553.552.280.5Relatively Moderate 1, Relatively Low 39, Very Low 15
Hail55 of 551.12.955.7Relatively Low 7, Very Low 48
Heat Wave55 of 5516.553.070.9Relatively Moderate 22, Relatively Low 32, Very Low 1
Hurricane55 of 5549.176.186.1Relatively Moderate 19, Relatively Low 35, Very Low 1
Ice Storm55 of 552.418.940.5Relatively Low 4, Very Low 51
Inland Flooding55 of 550.765.893.1Relatively High 17, Relatively Moderate 23, Relatively Low 8, Very Low 7
Landslide54 of 5511.064.195.9Relatively Moderate 1, Relatively Low 13, Very Low 40, No Rating 1
Lightning55 of 5521.653.372.1Relatively Moderate 30, Relatively Low 25
Strong Wind55 of 5537.778.090.1Relatively High 16, Relatively Moderate 36, Relatively Low 3
Tornado55 of 5519.643.960.6Relatively Moderate 5, Relatively Low 46, Very Low 4
Wildfire55 of 5520.947.485.6Relatively Low 6, Very Low 49
Winter Weather55 of 5556.985.393.2Relatively High 37, Relatively Moderate 18

Drought: Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range mostly reflects where crop and livestock value is.

Hail: Agriculture is 91% of NRI's expected annual loss for this hazard in the county, so the tract range mostly reflects where crop and livestock value is.

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, drought, 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 (crop and livestock value where a line above names agriculture).

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
Cumberland CountyCountyApproved, expires 2030-11-23$82,893.960 total; 0 since its planNo NFIP community ID on this jurisdiction's plan row. Includes $37,625.59 for declarations not counted as hazard incidents (DR-4506-PA).
Camp Hill boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 1, SRL 1; any 14$155,103.9112 total; 0 since its plan
Carlisle boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$104,426.2452 total; 1 since its plan
Lemoyne boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$34,198.104 total; 0 since its planIncludes $4,946.22 for declarations not counted as hazard incidents (DR-4506-PA).
Mechanicsburg boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 0, SRL 0; any 2$73,795.4426 total; 0 since its planIncludes $5,275.03 for declarations not counted as hazard incidents (DR-4506-PA).
Mount Holly Springs boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 0, SRL 0; any 1$13,380.3310 total; 0 since its plan
New Cumberland boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 9, SRL 2; any 58$83,938.6611 total; 0 since its plan
Newburg boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$3,851.2512 total; 0 since its plan
Newville boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$32,767.1524 total; 0 since its plan
Shippensburg boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$33,958.4323 total; 0 since its planAlso approved under plan 109334 (Franklin County Hazard Mitigation Plan, expires 2028-10-23). FEMA's plan status map shows one plan per jurisdiction and may show one of these; this packet uses the approved plan that expires last.
Shiremanstown boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$5,156.8121 total; 0 since its plan
Wormleysburg boroughOrganized BoroughApproved, expires 2030-11-23FMA RL 1, SRL 2; any 13$18,312.414 total; 0 since its plan
Cooke townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$7,5220 total; 0 since its plan
Dickinson townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 1$37,550.142 total; 0 since its plan
East Pennsboro townshipTownshipApproved, expires 2030-11-23FMA RL 3, SRL 3; any 27$209,971.440 total; 0 since its planIncludes $22,422.31 for declarations not counted as hazard incidents (DR-4506-PA).
Hampden townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 1; any 12$210,830.520 total; 0 since its plan
Hopewell townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$26,151.710 total; 0 since its plan
Lower Allen townshipTownshipApproved, expires 2030-11-23FMA RL 2, SRL 2; any 9$128,425.800 total; 0 since its plan
Lower Frankford townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 1$16,441.070 total; 0 since its plan
Lower Mifflin townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$17,861.640 total; 0 since its plan
Middlesex townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$71,545.1010 total; 1 since its planIncludes $7,381.86 for declarations not counted as hazard incidents (DR-4506-PA).
Monroe townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 4; any 8$45,551.500 total; 0 since its plan
North Middleton townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 2$83,870.840 total; 0 since its plan
North Newton townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$20,672.380 total; 0 since its plan
Penn townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$28,930.840 total; 0 since its plan
Shippensburg townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$23,307.0323 total; 0 since its plan
Silver Spring townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 5$95,825.340 total; 0 since its plan
South Middleton townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 3$101,630.510 total; 0 since its plan
South Newton townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 2$20,751.470 total; 0 since its plan
Southampton townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$18,532.840 total; 0 since its plan
Upper Allen townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 1; any 4$76,067.040 total; 0 since its plan
Upper Frankford townshipTownshipApproved, expires 2030-11-23FMA RL 3, SRL 1; any 5$14,734.990 total; 0 since its plan
Upper Mifflin townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$27,948.460 total; 0 since its plan
West Pennsboro townshipTownshipApproved, expires 2030-11-23FMA RL 0, SRL 0; any 0$27,480.800 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).

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 2025-11-24county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Avalanche$0n/aunder 1$0n/a$140building exposure is 0 in NRI
Cold Wave$61,417,767,674$282,206,924259,125$799$30,622$784,727under 0.0001%
Droughtn/a$33,248,214n/an/a$291,743n/a0.877% (agriculture)$0NRI has no building exposure for this hazard; agriculture shown
Earthquake$108,667,101,572n/a259,469$1,835,075n/a$477,2850.00169%
Hail$61,417,770,547$282,206,924259,125$4,154$49,299$987under 0.0001%$0
Heat Wave$61,417,767,674$282,206,924259,125$2$1,799$2,424,745under 0.0001%
Hurricane$61,399,000,926$281,777,464259,027$5,158,024$626,068$201,5510.0084%
Ice Storm$61,412,919,195n/a259,089$24,356n/a$58,480under 0.0001%
Inland Flooding$61,391,799,120$10,802,9035,190$47,857,283$226,546$1,613,186n/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$1,155,440,920n/a5,246$8,247n/a$1,9920.000714%
Lightning$61,417,770,547n/a259,125$41,238n/a$699,513under 0.0001%
Strong Wind$61,417,770,547$282,206,924259,125$204,497$49,489$2,579,2580.000333%$16,000
Tornado$61,417,770,547$282,206,924259,125$2,117,487$3,148$590,5740.00345%
Wildfire$14,531,934,321$74,719,19167,908$40,715$49$6,5930.00028%
Winter Weather$61,417,767,674$282,206,924259,125$7,584$63$689,657under 0.0001%$60,000

Totals since 2025-11-24 (Storm Events through 2026-06-30): 5 county-coded records, 5 with a damage value recorded (including $0), $16,000; 10 zone-level records, 10 with a damage value recorded (including $0), $60,000 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
Population259,125
Building value (total, not at risk)$61,417,770,547
Agriculture value (total, not at risk)$282,206,924
NRI risk rating (all hazards)Relatively Moderate
Expected annual loss, buildings and agriculture, all hazards$58,578,288
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)$10,128,688
Social vulnerability ratingRelatively Low
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)19Severe repetitive loss, FMA definition (44 CFR 77.2)17
Repetitive loss, NFIP insurance definition164Severe repetitive loss, NFIP insurance definition12

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 total191716412169248
of which: Camp Hill borough111411406
of which: East Pennsboro Township of332512719
of which: Hampden township011101202
of which: Mechanicsburg borough0020200
of which: Monroe township0484801
of which: Mount Holly Springs borough0010100
of which: New Cumberland borough9258158016
of which: North Middleton township0020202
of which: Silver Spring township0050500
of which: South Middleton township0030300
of which: Upper Allen township0141401
of which: West Fairview borough (community ID not in plan data)0010100
of which: Wormleysburg borough121321306
of which: Lower Allen township2281913
of which: Lower Frankford township0010101
of which: Dickinson township0010100
of which: South Newton township0020200
of which: Upper Frankford township3141501
of which: Unknown (community ID Unknown in FEMA data)0010100
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
Camp Hill borough420357111411406
Carlisle borough4253820000000
Lemoyne borough4203610000000
Mechanicsburg borough4203620020200
Mount Holly Springs borough4203650010100
New Cumberland borough4203669258158016
Newburg borough4224050000000
Newville borough4215790000000
Shippensburg borough4203680000000
Shiremanstown borough4203690000000
Wormleysburg borough420374121321306
Cooke township4224040000000
Dickinson township4215800010100
East Pennsboro township420359332512719
Hampden township420360011101202
Hopewell township4215810000000
Lower Allen township4210162281913
Lower Frankford township4210180010101
Lower Mifflin township4215820000000
Middlesex township4203630000000
Monroe township4203640484801
North Middleton township4203670020202
North Newton township4215830000000
Penn township4215840000000
Shippensburg township4215850000000
Silver Spring township4203700050500
South Middleton township4203710030300
South Newton township4215860020200
Southampton township4215870000000
Upper Allen township4203720141401
Upper Frankford township4215883141501
Upper Mifflin township4215890000000
West Pennsboro township4215900000000

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 residential15131228127236
2 to 4 unit residential111411402
other residential0262601
non-residential312212209
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 3 properties are FMA repetitive loss but not NFIP repetitive loss, and 148 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). Cumberland County, PA: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 42041). Automated baseline. https://hazardplain.org/pa/42041/ 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]