Hazard Plain Preview: automated baseline

Washington County, OH

Risk-assessment baseline packet

Unit
County area 39167
Release
2026-10
As of
2026-09-28
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.

A starting point for the plan's risk assessment (FEMA Local Mitigation Plan Review Tool, Element B). It does not replace local data or FEMA review. Section headings say which FEMA review item each table supports; whether an item is satisfied is decided by the plan and its reviewers.

Hazard Plain release 2026-10, as of 2026-09-28. Independent product; not a FEMA document.

Plan clock

Status
Approved, expires 2027-01-10
Plan
Washington County Hazard Mitigation Plan (FEMA plan 107800)
Approved
2022-01-11
Expires
2027-01-10
As of
2026-09-28
Days
104 days to expiry
Update underway
none in FEMA's plan tracker

What changed since your last plan (approved 2022-01-11)

New federal declarations
none (0 declaration rows; 0 counted incidents)
Storm Events records since approval
175 (data through 2026-06-30)
Repetitive loss now
FMA RL 16, SRL 27 (44 CFR 77.2); any definition: 205
Repeat-flood change
First release: no prior release to compare.

Sources

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)

Plan status for every jurisdiction listed in this county

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Washington CountyCountyApproved, expires 2027-01-10Washington County Hazard Mitigation Plan (FEMA plan 107800)2022-01-112027-01-10104
Belpre cityCityApproved, expires 2027-01-10Washington County Hazard Mitigation Plan (FEMA plan 107800)2022-01-112027-01-10104
Beverly villageVillageApproved, expires 2027-01-10Washington County Hazard Mitigation Plan (FEMA plan 107800)2022-01-112027-01-10104
Lowell villageVillagePlan 107800 approved 2022-01-11, pending adoption here; not yet eligibleWashington County Hazard Mitigation Plan (FEMA plan 107800), pending adoption here2022-01-11 by FEMA; not yet adopted here2027-01-10 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Lower Salem villageVillageApproved, expires 2027-01-10Washington County Hazard Mitigation Plan (FEMA plan 107800)2022-01-112027-01-10104
Macksburg villageVillageApproved, expires 2027-01-10Washington County Hazard Mitigation Plan (FEMA plan 107800)2022-01-112027-01-10104member approved 2022-04-04
Marietta cityCityPlan 107800 approved 2022-01-11, pending adoption here; not yet eligibleWashington County Hazard Mitigation Plan (FEMA plan 107800), pending adoption here2022-01-11 by FEMA; not yet adopted here2027-01-10 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Matamoras villageVillageApproved, expires 2027-01-10Washington County Hazard Mitigation Plan (FEMA plan 107800)2022-01-112027-01-10104

Source

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

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

Supports B1-a: hazards

Hazards NRI does not cover: check locally

  • 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)

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL total (see note)modeled dollars per yearStorm Events records since 1996countEvidence for an omissionNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1Inland FloodingRelatively ModerateRelatively Moderate$18,171,712$273,579$264,369$18,709,660216
2Heat WaveRelatively LowRelatively Low$943under $1$659,265$660,20919
3TornadoRelatively LowRelatively Low$409,978$242$155,989$566,2093
4Strong WindRelatively LowRelatively Low$233,877$918$293,571$528,366168Includes 13 High Wind records and 13 Strong Wind records, event types the NRI definition of this hazard leaves out.
5LightningRelatively ModerateRelatively Moderate$20,219$340,782$361,0017
6HailRelatively LowRelatively Low$309,318$7,082$3,839$320,23998
7DroughtRelatively LowRelatively Low$292,772$292,77212
8Ice StormRelatively ModerateRelatively Moderate$213,342$25,113$238,4550No recorded events in Storm Events since 1996 (data through 2026-06-30).
9EarthquakeVery LowVery Low$168,152$50,065$218,218Not in Storm Events. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
10Cold WaveVery LowRelatively Low$10,360$6,004$144,118$160,48133Includes 3 Frost/Freeze records, event types the NRI definition of this hazard leaves out.
11HurricaneVery LowRelatively Low$123,959$12,895$5,324$142,1780No recorded events in Storm Events since 1996 (data through 2026-06-30).
12LandslideRelatively ModerateRelatively Low$5,925$36,737$42,6630Declared 5 times; no Storm Events record of this type. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
13Winter WeatherVery LowRelatively Low$8,626$151$10,937$19,71468
14WildfireVery LowVery Low$6,447$16$2,101$8,5640No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
AvalancheNot ApplicableNot Applicable0NRI rates avalanche Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
Coastal FloodingNot ApplicableNot Applicable0NRI rates coastal flooding Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiNot ApplicableNot Applicable0NRI rates tsunami Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
Volcanic ActivityNot ApplicableNot Applicable0NRI rates volcanic activity Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Check your state hazard mitigation plan's hazard list for this county; explain any hazard you drop.

Supports B1-b: location

Where each hazard occurs

HazardLocationCensus tracts ratedrated of all tracts
AvalancheCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 18
Coastal FloodingCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 18
Cold WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.18 of 18
DroughtAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.12 of 18
EarthquakeCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.18 of 18
HailAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.18 of 18
Heat WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.18 of 18
HurricaneCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.18 of 18
Ice StormAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.18 of 18
Inland FloodingThe 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.18 of 18
LandslideCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.18 of 18
LightningAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.18 of 18
Strong WindAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.18 of 18
TornadoCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.18 of 18
TsunamiCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 18
Volcanic ActivityCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 18
WildfireCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.18 of 18
Winter WeatherAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.18 of 18

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Supports B1-c: extent

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

HazardScaleRecordscount, yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to membersNote
Avalanchenone (count and damage)0Physical measure: in event narratives only; local data required.
Coastal Flood, Storm Surge/Tidenone in data (FIRM for depth)0Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill30, 1996 to 2026 (30 zone-level)1 day to 31 days (median 2 days); 25 with a recorded value31 days, 2000-12-01 to 2000-12-31, from 1 monthly summary record (a monthly summary record covers most or all of a month; it does not count days at wave conditions), zone-levelExtreme Cold/Wind Chill, 2014-01-06, $115,000 property; $0 crops, reported for the zone (2014 dollars)Zone-level records: applies countywide; national data do not locate these events within the county.Wind chill: in event narratives only; local data required. Cold/Wind Chill records from May to September (a frost night, not a cold wave) are counted but not used for the longest run.
Frost/Freeze (outside NRI Cold Wave definition)crop damage3, 2003 to 2004 (3 zone-level)No crop damage reported in 3 records.Zone-level records: applies countywide; national data do not locate these events within the county.Temperature: in event narratives only; local data required.
DroughtUS Drought Monitor D-scale12, 1999 to 2025 (12 zone-level)25 days to 153 days (median 91.5 days); 4 with a recorded value153 days (5 months), 1999-06-01 to 1999-10-31, a run of 5 consecutive Storm Events drought records, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.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)0No Storm Events record; local data required (e.g., USGS).
Hailhail size (inches)105, 1980 to 20260.75 in to 3.5 in (median 1 in); 105 with a recorded value3.5 in hail, 2023-02-27Hail, 2011-06-21, $20,000 property; $0 crops (2011 dollars)Event records naming member places: Marietta city (25 records), Lowell village (7 records), Belpre city (3 records), Beverly village (2 records), Lower Salem village (2 records), Macksburg village (1 record).
Excessive Heat, Heatheat index (narratives)19, 1997 to 2018 (19 zone-level)1 day to 3 days (median 2 days); 5 with a recorded value3 consecutive days, 2011-07-20 to 2011-07-22, zone-levelHeat, 2018-06-19, $20,000 property; $0 crops, reported for the zone (2018 dollars)Zone-level records: applies countywide; national data do not locate these events within the county.Heat index: in event narratives only; local data required. Heat records from November to March (unseasonable warmth, not a heat wave) are counted but not used for the longest run.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson0Storm Events files every zone of a storm's episode under the storm's event type and category, so a Hurricane (Typhoon) record, especially an inland or remnant one, does not by itself mean hurricane-force winds here; read the damage and wind columns.
Ice StormSperry-Piltz (local data)0Ice thickness: in event narratives only; local data required.
Flash Flood, Flood, Lakeshore Flooddamage and flood days (FIRM for depth)216, 1996 to 2026 (10 zone-level)Flood, 2004-09-17, $17,000,000 property; crops not reported, reported for the zone (2004 dollars); NWS zone OHZ076 (WASHINGTON), zone-level: may include parts of neighboring countiesEvent records naming member places: Macksburg village (58 records), Marietta city (10 records), Beverly village (9 records), Lowell village (7 records), Belpre city (5 records), Lower Salem village (1 record). Zone-level records (10) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage can be $0 or blank even for a major flood, so the worst record here may not be the worst flood; compare FEMA Public Assistance by declaration in B1-d.
Debris Flownone (count and damage)0Physical measure: in event narratives only; local data required.
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)7, 1996 to 2017Lightning, 2002-06-04, $100,000 property; crops not reported (2002 dollars)Event records naming member places: Marietta city (3 records).Storm Events lists lightning with damage or casualties; physical measure in event narratives only; local data required.
High Wind and Strong Wind (outside NRI Strong Wind definition)wind speed (kt and mph)26, 1999 to 2026 (26 zone-level)30 kt (35 mph) to 50 kt (58 mph) (median 40 kt (46 mph)); 15 with a recorded value50 kt (58 mph) estimated gust, High Wind, 2023-04-01; same speed and measurement basis also recorded on 2006-12-01, 2023-03-25; NWS zone OHZ076 (WASHINGTON), zone-level: may include parts of neighboring countiesHigh Wind, 2000-12-11, $75,000 property; crops not reported, reported for the zone (2000 dollars)Zone-level records: applies countywide; national data do not locate these events within the county.
Thunderstorm Windwind speed (kt and mph)183, 1974 to 202640 kt (46 mph) to 78 kt (90 mph) (median 50 kt (58 mph)); 122 with a recorded value78 kt (90 mph) estimated gust, Thunderstorm Wind, 2018-05-15; same speed and measurement basis also recorded on 2017-04-05Thunderstorm Wind, 2012-06-29, $3,000,000 property; $0 crops (2012 dollars)Event records naming member places: Marietta city (33 records), Belpre city (13 records), Beverly village (10 records), Lowell village (6 records), Lower Salem village (1 record).
TornadoEnhanced Fujita (F before Feb 2007)8, 1971 to 2021F/EF0 to F/EF2 (median between F/EF0 and F/EF1); 8 with a recorded valueF2 tornado, 1981-07-28, 1.1 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 50 yd wide, $250,000 property; crops not recorded (1981 dollars), 5 direct injuriesEvent records naming member places: Macksburg village (1 record).From 1996 on, tornado records are per-county segments and length is the path length within this county (NWS Instruction 10-1605); records before 1996 may give the whole path length, including the path outside this county, and before 1996 a tornado is listed once, under the county where it began, with the whole path's rating; counties farther along the path may not list it. Length is not used to rank tornadoes.
Tsunaminone (count and damage)0Physical measure: in event narratives only; local data required.
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0Physical measure: in event narratives only; local data required.
Wildfireacres burned (local data)0Acres burned: in event narratives only; local data required.
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall local)68, 1996 to 2026 (68 zone-level)Winter Weather, 2016-01-08, $75,000 property; $0 crops, reported for the zone (2016 dollars); NWS zone OHZ076 (WASHINGTON), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Snow depth: in event narratives only; local data required.

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records are placed with NWS zone-county files, which exist from 2020 on; an earlier record is placed by its zone number in the nearest later file only when its zone name matches that file, records from zones NWS renumbered are placed by name or left out, and a record whose zone is in no known file is left out of every count, so counts before 2020 can be low. Some current zones are also missing from the NWS files, so recent counts can be low too.

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

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

Supports B1-d: previous occurrences

Declaration rows
20
Counted incidents
16

Federal disaster declarations for this county

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2020-03-312020-01-20DR-4507-OHMajor disasterCOVID-19 PANDEMICNon-natural, not counted$35,200,782.06
2020-03-132020-01-20EM-3457-OHEmergencyCOVID-19Non-natural, not countednone foundsame incident as DR-4507
2019-04-082019-02-05DR-4424-OHMajor disasterSEVERE STORMS, FLOODING, AND LANDSLIDESInland Flooding (primary); also designated: Landslide$3,658,028.11
2018-04-172018-02-14DR-4360-OHMajor disasterSEVERE STORMS, LANDSLIDES, AND MUDSLIDESInland Flooding (primary); also designated: Landslide$5,298,599
2012-08-202012-06-29DR-4077-OHMajor disasterSEVERE STORMS AND STRAIGHT-LINE WINDSStrong Wind$410,486.56
2012-06-302012-06-29EM-3346-OHEmergencySEVERE STORMSHazard not mapped (severe storm title names no single hazard); not countednone foundsame incident as DR-4077
2011-07-132011-04-04DR-4002-OHMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$636,047.05
2005-09-132005-08-29EM-3250-OHEmergencyHURRICANE KATRINA EVACUATIONHurricane: evacuation support, not a local hazard event; not countednone found
2005-02-152004-12-22DR-1580-OHMajor disasterSEVERE WINTER STORMS, FLOODING, AND MUDSLIDESInland Flooding; Landslide; Winter Weather$926,184.88
2004-09-192004-08-27DR-1556-OHMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$1,955,217.12
2004-01-262004-01-03DR-1507-OHMajor disasterSEVERE STORMS, FLOODING, MUDSLIDES, AND LANDSLIDESInland Flooding; Landslide$892,371.66
2003-03-142003-02-14DR-1453-OHMajor disasterSEVERE WINTER STORM AND RECORD/NEAR RECORD SNOWWinter Weather$125,838.10
1998-06-301998-06-24DR-1227-OHMajor disasterSEVERE STORMS, FLOODING, AND TORNADOESInland Flooding; Tornadonone found
1997-03-041997-02-28DR-1164-OHMajor disasterSEVERE STORMS AND FLOODINGInland Floodingnone found
1996-01-271996-01-20DR-1097-OHMajor disasterSEVERE STORMS AND FLOODINGInland Floodingnone found
1995-08-251995-08-07DR-1065-OHMajor disasterSEVERE STORMS AND FLOODINGInland FloodingPA not declared for this county
1978-01-261978-01-26EM-3055-OHEmergencyBLIZZARDS & SNOWSTORMSWinter Weathernone found
1977-02-021977-02-02EM-3029-OHEmergencySNOWSTORMSWinter Weathernone found
1973-06-041973-06-04DR-390-OHMajor disasterMUDSLIDESLandslidenone found
1968-06-051968-06-05DR-243-OHMajor disasterHEAVY RAINS & FLOODINGInland Floodingnone found

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.

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

Statewide declarations

DeclaredIncident beganFEMA numberTypeTitleMapped hazardFlagsNotes
1964-03-241964-03-24DR-167-OHMajor disasterSEVERE STORMS & FLOODINGInland Flooding
1959-01-231959-01-23DR-90-OHMajor disasterFLOODSInland Flooding
1956-05-171956-05-17DR-57-OHMajor disasterWIND STORMOther, not an NRI hazard; not counted

FEMA recorded these with designated area Statewide and no county. Listed on every county page in the state; not counted with county rows.

Source

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

Public Assistance not placed in a county in this state: 1 row, $3,080,910.74

Disaster numberDeclaredApplicantCounty field in FEMA dataPA obligatedfederal share obligated, nominal dollarsWhy not placed
45072020-03-31Prime Healthcare Foundation, Inc. (Ohio)San Bernardino County$3,080,910.74county field is a county of another state and the applicant name does not identify a place in the declaring state

FEMA's Public Assistance summaries file these applicants under a county field that is not a county of this state (an Alaska school area, the former Valdez-Cordova Census Area, or another state's county), and the applicant name does not identify one place here. They are listed for the whole state and are not in any county total. Check whether any of them worked in your county.

Previous occurrences by hazard, with explicit no-event rows

HazardStorm Events recordsfull periodSince plan approvalrecordsDuring plan reviewrecordsLast 5 yearsrecordsDeclared incidentsdistinct incidentsDeclared since approvaldistinct incidentsPeriodStatement
Avalanche0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave33202001996 to 2026-06-30Includes 3 Frost/Freeze records, event types the NRI definition of this hazard leaves out.
Drought12606001996 to 2026-06-30
Earthquake000000No Storm Events record; local data required (e.g., USGS).
Hail10526026001955 to 2026-06-30
Heat Wave19000001996 to 2026-06-30
Hurricane0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Inland Flooding216861861101996 to 2026-06-30
Landslide0000501996 to 2026-06-30No Storm Events records of this type; 5 federal declared incidents (see declarations table)
Lightning7000001996 to 2026-06-30
Strong Wind20938638101955 to 2026-06-30Includes 13 High Wind records and 13 Strong Wind records, event types the NRI definition of this hazard leaves out.
Tornado8010101950 to 2026-06-30
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Volcanic Activity0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather6817518401996 to 2026-06-30

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

Notable Storm Events records

DateEvent typeMagnitude or extentDamagenominal dollarsDirect deaths, injuriesindirect not countedLocationFlagsWhy listed
2024-04-03Flood$0 property; $0 crops (2024 dollars)1, 0GRANDVIEW to LEITHnew since last plan; within last 5 yearsdeaths or injuries recorded
2023-04-01High Wind50 kt (58 mph) estimated gust$0 property; $0 crops, reported for the zone (2023 dollars)0, 0NWS zone OHZ076 (WASHINGTON), zone-level: may include parts of neighboring countiesnew since last plan; within last 5 yearsB1-c worst recorded: High Wind and Strong Wind (outside NRI Strong Wind definition)
2023-02-27Hail3.5 in$0 property; $0 crops (2023 dollars)0, 0WATERTOWNnew since last plan; within last 5 yearsB1-c worst recorded: Hail
2018-05-15Thunderstorm Wind78 kt (90 mph) estimated gust$40,000 property; $0 crops (2018 dollars)0, 0WINGETT RUN to NEW MATAMORASB1-c worst recorded: Thunderstorm Wind
2016-01-08Winter Weather$75,000 property; $0 crops, reported for the zone (2016 dollars)0, 0NWS zone OHZ076 (WASHINGTON), zone-level: may include parts of neighboring countiesB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2011-07-20Heat$0 property; $0 crops, reported for the zone (2011 dollars)0, 0NWS zone OHZ076 (WASHINGTON), zone-level: may include parts of neighboring countiesB1-c worst recorded: Excessive Heat, Heat
2004-09-17Flood$17,000,000 property; crops not reported, reported for the zone (2004 dollars)0, 0NWS zone OHZ076 (WASHINGTON), zone-level: may include parts of neighboring countiesB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2002-06-04Lightning$100,000 property; crops not reported (2002 dollars)0, 0PORTERFIELDB1-c worst recorded: Lightning
2000-12-01Cold/Wind Chilldamage not reported0, 0NWS zone OHZ076 (WASHINGTON), zone-level: may include parts of neighboring countiesB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
1999-06-01Droughtdamage not reported0, 0NWS zone OHZ076 (WASHINGTON), zone-level: may include parts of neighboring countiesB1-c worst recorded: Drought
1998-06-27Flash Flood$10,000,000 property; crops not reported (1998 dollars)1, 0COUNTYWIDEdeaths or injuries recorded
1981-07-28TornadoF2, 1.1 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 50 yd wide$250,000 property; crops not recorded (1981 dollars)0, 5location not recordeddeaths or injuries recorded

The full list is in the XLSX file, sheet "B1-d Storm Events history" (677 rows).

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records are placed with NWS zone-county files, which exist from 2020 on; an earlier record is placed by its zone number in the nearest later file only when its zone name matches that file, records from zones NWS renumbered are placed by name or left out, and a record whose zone is in no known file is left out of every count, so counts before 2020 can be low. Some current zones are also missing from the NWS files, so recent counts can be low too.

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

State-declared emergencies are not in federal data. Add them from your state emergency management agency.

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

Supports B1-e: probability

Probability: FEMA annualized frequency and descriptor per hazard

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
Avalancheevents per year1994 to 2023 (30 years)see B1-fNot Applicable in NRI for this county; no descriptor.
Coastal Floodingevents per year at a location (modeled)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Cold Wave1.68event-days per yearabout 1.68 days per yearLikelyevent-days in 10 of 30 years, 1996 to 2025 (33.3%)322005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 1.68 cold wave event-days a year here (its annualized frequency over 19 years; not its event count divided by the years), but Storm Events has a record in only 10 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together. Frost/Freeze records are not counted in this descriptor: they record crop freezes, not cold waves.
Drought4.03event-days per yearabout 4.03 days per yearLikelyevent-days in 4 of 30 years, 1996 to 2025 (13.3%)1682000 to 2025 (25.25 years; D3 and D4 only)countywideNRI gives about 4.03 drought event-days a year here (its annualized frequency over 25.25 years; not its event count divided by the years), but Storm Events has a record in only 4 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Earthquake0.000955annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0955%not shownmodeledsee B1-fDescriptor not assigned: the NRI value is the chance at a location in the county, not how often the hazard affects the county, and Storm Events does not record earthquakes.
Hail2.59events per yearabout 2.59 per yearHighly likelyFEMA annualized frequency (modeled)98.5 (modeled)1986 to 2023 (38 years)countywide
Heat Wave3.05event-days per yearabout 3.05 days per yearLikelyevent-days in 8 of 30 years, 1996 to 2025 (26.7%)532005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 3.05 heat wave event-days a year here (its annualized frequency over 19 years; not its event count divided by the years), but Storm Events has a record in only 8 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Hurricane0.025events per yearabout 1 in 40 yearsPossibleFEMA annualized frequency (modeled)101851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are counted separately in B1-d and need not match.
Ice Storm0.541event-days per yearabout 0.541 days per yearevent-days in 0 of 30 years, 1996 to 2025 (0%)371946-12-31 to 2014-02-12 (67 years)countywideNo recorded event-days, 1996 to 2025; descriptor not assigned
Inland Flooding4.04event-days per yearabout 4.04 days per yearLikelyevent-days in 23 of 30 years, 1996 to 2025 (76.7%)1131996 to 2023 (28 years)see B1-f
Landslide1.49events per year (modeled)about 1.49 per yearHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning46.3days per year with a strikeabout 46.3 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind1.1events per yearabout 1.1 per yearHighly likelyFEMA annualized frequency (modeled)421986 to 2023 (38 years)countywide
Tornado0.133events per yearabout 1 in 7 yearsLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Tsunamiannual probability at the most exposed location (used in place of a county value)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Volcanic Activityannual probabilitynot shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Wildfire0.000058annual probability at a locationchance a given location in the county burns in a year: 0.0058%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo Storm Events record of this hazard, 1996 to 2025; descriptor not assigned (the NRI value is the chance at a location in the county, not how often the hazard affects the county)
Winter Weather8.47event-days per yearabout 8.47 days per yearHighly likelyevent-days in 27 of 30 years, 1996 to 2025 (90%)1612005-11-12 to 2024-11-12 (19 years)countywide

FEMA annualized frequency (modeled) comes from the National Risk Index v1.20 (December 2025). It is not recorded events divided by years, and what it measures depends on the hazard. For most hazards it estimates how often the hazard affects this county each year: it counts events or event-days (drought, heat wave, cold wave, winter weather, ice storm and inland flooding are in days per year; lightning is the number of days per year with a recorded cloud-to-ground strike, from the NOAA Storm Prediction Center daily lightning climatology); it may count events in the surrounding area (hail, strong wind, tornado, hurricane and ice storm use a 49 km grid and buffers) and is averaged over the county's area; and some hazards use a minimum value for places with no recorded event. Earthquake, wildfire and coastal flooding are different: FEMA computes them for each census block and averages them over the county, so the value is the chance (for coastal flooding, the modeled number of floods per year) at a location in the county, which is lower than the chance that the hazard strikes somewhere in the county. Earthquake is the chance of at least minor-damage shaking (U.S. Geological Survey model); wildfire is the chance that a location burns in a large fire (U.S. Forest Service burn probability); coastal flooding comes from FEMA flood zones and NOAA high-tide flooding, so it can be above 1 where high-tide flooding is frequent. Tsunami is the value at the county's most exposed location, from recorded events and modeled return periods. For these four hazards the packet gives no "1 in N years" and takes the descriptor from Storm Events (none for earthquake) unless the value is 1 or more a year. Landslide is a U.S. Geological Survey modeled county rate spread by slope susceptibility. Volcanic activity is the chance that a volcano affecting the county erupts in a year. Drought counts only extreme and exceptional drought (D3 and D4). Source: FEMA, National Risk Index Technical Documentation v1.20, sections 5.2.2 (Table 5), 5.2.3, 7.4, 10.4, 16.5, 17.1, 17.3.1, 17.5, 20.3.1, 21.4, 22.4 and 6 to 23.

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Descriptor scale used in this packet (defined per unit)

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Intensity bands: historical frequency (Storm Events)

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202554301.8
Hail2.00 in+1996 to 20252300.0667
Strong Wind (Thunderstorm Wind records)50-64 kt1996 to 202588302.93
Strong Wind (Thunderstorm Wind records)65 kt+1996 to 20258300.267
Strong Wind (Thunderstorm Wind records)unmeasured or below 50 kt1996 to 202538301.27
TornadoEF0-11996 to 20253300.1
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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.

Source

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

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.

Supports B1-f: variation across the planning area

Range of census tract risk within the county

HazardTractsrated of allRisk score minNRI score, 0 to 100MedianMaxTracts by ratingNote
Avalanche0 of 18Not Applicable 18
Coastal Flooding0 of 18Not Applicable 18
Cold Wave18 of 1820.224.229.7Relatively Low 18National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Drought12 of 1879.287.896.6Relatively Moderate 3, Relatively Low 9, No Rating 6National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range above mostly reflects where crop and livestock value is, not where buildings and people are. Confirm locally.
Earthquake18 of 1815.730.750.5Relatively Low 4, Very Low 14
Hail18 of 1852.668.979.5Relatively Moderate 8, Relatively Low 10National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Heat Wave18 of 1826.353.370.3Relatively Moderate 7, Relatively Low 11National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Hurricane18 of 1846.251.756.2Relatively Low 10, Very Low 8
Ice Storm18 of 1829.277.390.3Relatively High 1, Relatively Moderate 11, Relatively Low 5, Very Low 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Inland Flooding18 of 1826.772.798.4Very High 3, Relatively High 5, Relatively Moderate 7, Relatively Low 3
Landslide18 of 1823.290.498.0Relatively Moderate 4, Relatively Low 10, Very Low 4
Lightning18 of 1845.572.487.0Relatively High 4, Relatively Moderate 13, Relatively Low 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Strong Wind18 of 1842.768.582.9Relatively High 1, Relatively Moderate 13, Relatively Low 4National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Tornado18 of 1823.639.151.7Relatively Low 15, Very Low 3
Tsunami0 of 18Not Applicable 18
Volcanic Activity0 of 18Not Applicable 18
Wildfire18 of 1836.759.172.7Relatively Low 1, Very Low 17
Winter Weather18 of 1825.035.245.4Relatively Low 18National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.

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.

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Per-member block (Starter, confirm locally)

MemberTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance matchedfederal share obligated, nominal dollarsEvent records naming this placeall years; since the member's planNotes
Washington CountyCountyApproved, expires 2027-01-10FMA RL 9, SRL 11; any 57$131,237.090; 0
Belpre cityCityApproved, expires 2027-01-10FMA RL 1, SRL 2; any 15$192,234.8521; 3
Beverly villageVillageApproved, expires 2027-01-10FMA RL 0, SRL 0; any 2$42,594.6621; 5
Lowell villageVillagePlan 107800 approved 2022-01-11, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 3$1,128.4820; no approved plan
Lower Salem villageVillageApproved, expires 2027-01-10FMA RL 3, SRL 1; any 3$15,633.734; 2
Macksburg villageVillageApproved, expires 2027-01-10FMA RL 0, SRL 0; any 2$11,996.7760; 26
Marietta cityCityPlan 107800 approved 2022-01-11, pending adoption here; not yet eligibleFMA RL 3, SRL 13; any 123$1,045,024.6371; no approved plan
Matamoras villageVillageApproved, expires 2027-01-10FMA RL 0, SRL 0; any 0$62,506.510; 0

Member 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 member row, while the county table counts only its part in this county.

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

Sources

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)

FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Supports B2-a and B2-b: assets and impacts

Local data required

County-level starter. The plan must describe impacts for each participant and its own assets.

  • Critical facilities and lifelines per hazard
  • A problem statement per participant 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

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since 2022-01-11county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
AvalancheNot Applicable in NRI for this county
Coastal FloodingNot Applicable in NRI for this county
Cold Wave$13,010,059,902$54,126,57059,732$10,360$6,004$144,118under 0.0001%$0
Drought$21,186,009$292,7721.38% (agriculture)$0NRI has no building exposure for this hazard; agriculture shown
Earthquake$24,255,823,91459,771$168,152$50,0650.000693%
Hail$13,010,059,902$54,126,57059,732$309,318$7,082$3,8390.00238%$0
Heat Wave$13,010,059,902$54,126,57059,732$943under $1$659,265under 0.0001%
Hurricane$12,996,435,801$52,429,47759,624$123,959$12,895$5,3240.000954%
Ice Storm$13,009,910,06659,731$213,342$25,1130.00164%
Inland Flooding$12,995,524,556$8,169,0236,028$18,171,712$273,579$264,369n/a (see note)$49,850NRI 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. EAL as % of exposure: n/a.
Landslide$1,310,326,2328,334$5,925$36,7370.000452%
Lightning$13,010,059,90259,732$20,219$340,7820.000155%
Strong Wind$13,010,059,902$54,126,57059,732$233,877$918$293,5710.0018%$87,100$14,750Storm Events damage since the plan includes 1 zone-level High Wind record ($3,000) and 8 zone-level Strong Wind records ($11,750), event types the NRI definition of this hazard leaves out.
Tornado$13,010,059,902$54,126,57059,732$409,978$242$155,9890.00315%
TsunamiNot Applicable in NRI for this county
Volcanic ActivityNot Applicable in NRI for this county
Wildfire$5,547,515,124$36,163,32331,777$6,447$16$2,1010.000116%
Winter Weather$13,010,059,902$54,126,57059,732$8,626$151$10,937under 0.0001%$0

Totals since 2022-01-11 (Storm Events through 2026-06-30): 140 county-coded records, 140 with a damage value recorded (including $0), $136,950; 35 zone-level records, 35 with a damage value recorded (including $0), $14,750 reported for the zone; Public Assistance on counted declarations none found (0 declarations, 0 with PA).

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

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 must not be added up; the unit total counts each declaration once.

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

Supports B2-a: context

County context

MeasureValue
Population59,732
Building value (total, not at risk)$13,010,059,902
Agriculture value (total, not at risk)$54,126,570
NRI risk rating (all hazards)Relatively Low
Expected annual loss, buildings and agriculture, all hazards$20,276,519
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)$1,992,210
Social vulnerability ratingRelatively Moderate
Community resilience ratingRelatively Moderate
NRI versionDecember 2025

FEMA's all-hazard expected annual loss total adds buildings, agriculture and population equivalence; the two parts are shown separately so the property figure is not read as including the statistical value of life.

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Supports B2-c: repetitive loss

Repetitive loss in this county, both definitions

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)16Severe repetitive loss, FMA definition (44 CFR 77.2)27
Repetitive loss, NFIP insurance definition203Severe repetitive loss, NFIP insurance definition26

Your state NFIP coordinator's list may use the NFIP insurance definition, so its counts can be higher.

Repeat-flood properties: county and state-level rows

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total162720326205040
WASHINGTON COUNTY *91156115708
BELPRE, CITY OF121521505
BEVERLY, VILLAGE OF0020201
LOWELL, VILLAGE OF0030300
LOWER SALEM, VILLAGE OF3131300
MACKSBURG, VILLAGE OF0020200
MARIETTA, CITY OF31312212123026
State level, not in this county: county not reported0010100

Repeat-flood properties by plan member (NFIP community)

MemberNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Washington County39056691156115708
Belpre city390567121521505
Beverly village3905680020201
Lowell village3905690030300
Lower Salem village3905703131300
Macksburg village3905710020200
Marietta city39057231312212123026
Matamoras village3905730000000

Per-member types: XLSX sheet 'B2-c Members'.

Member 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 member row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential1213911392017
2 to 4 unit residential1131301
other residential011011006
non-residential3129911100016
not reported0000000

Institutional properties cannot be separated in this data: FEMA's occupancy groups have no institutional class, so they fall 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; OpenFEMA's fmaRl field description omits the Increased Cost of Compliance clause of 44 CFR 77.2(i). NFIP repetitive loss (FEMA insurance definition, nfipRl) is 2 or more claims over $1,000 in 10 years and can drop to false when a property is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured.

Your state NFIP coordinator's list may use the NFIP insurance definition, so its counts can be higher.

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

Counts may differ from your state NFIP coordinator's list, which is the source the Handbook names.

In this county 1 property is FMA repetitive loss but not NFIP repetitive loss, and 188 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

Every table above lists its own sources. The full list, for the plan's bibliography (FEMA review item A4-a):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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

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).

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.

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). Washington County, OH: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-28; County area 39167). Preview: automated baseline. 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: to be added

Hazard Plain release 2026-10. As of 2026-09-28; Storm Events data through 2026-06-30. File hazard-plain_2026-10_OH_39167. Preview: automated baseline.