County Hazards

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Allen County, Ohio

Recorded hazard history: storm events since 1950, federal disaster declarations since 1953, flood insurance claims since 1978, and FEMA's risk index.

FIPS 39003 · 101,670 residents (2021) · 403 sq mi · dominant hazard Wind

Hail · 64Tornado · 23Flood · 13Wind · 209Winter · 73
1959-05-10: Hail1967-07-30: Hail1968-07-22: Hail1980-06-02: Hail1980-06-02: Hail1980-07-12: Hail1980-07-12: Hail1981-06-24: Hail1981-04-28: Hail1982-03-16: Hail1982-05-27: Hail1982-05-27: Hail1983-05-02: Hail1986-06-16: Hail1992-09-09: Hail1998-05-31: Hail1998-05-31: Hail1998-05-31: Hail1998-04-16: Hail1998-05-03: Hail1998-05-03: Hail1998-06-27: Hail1999-07-09: Hail1999-06-13: Hail2003-08-26: Hail2004-05-07: Hail2004-05-07: Hail2004-05-07: Hail2004-05-07: Hail2004-05-07: Hail2004-05-07: Hail2004-05-21: Hail2005-11-08: Hail2007-06-08: Hail2007-06-08: Hail2010-05-05: Hail2010-05-05: Hail2010-05-05: Hail2010-05-27: Hail2011-04-23: Hail2011-06-04: Hail2011-06-21: Hail2012-04-30: Hail2012-09-22: Hail2012-07-18: Hail2013-04-10: Hail2015-08-03: Hail2017-04-19: Hail2017-06-13: Hail2017-09-04: Hail2017-07-10: Hail2017-07-16: Hail2017-07-16: Hail2017-07-16: Hail2020-03-28: Hail2020-03-28: Hail2022-05-03: Hail2022-05-21: Hail2022-03-23: Hail2023-07-20: Hail2023-03-22: Hail2025-04-02: Hail1950-07-19: Tornado1965-05-26: Tornado1965-04-11: Tornado1970-08-22: Tornado1971-06-02: Tornado1973-06-26: Tornado1979-07-30: Tornado1980-04-08: Tornado1980-04-08: Tornado1981-06-21: Tornado1992-02-18: Tornado1998-07-19: Tornado2002-09-20: Tornado2003-08-26: Tornado2006-06-22: Tornado2010-10-26: Tornado2010-06-11: Tornado2011-04-19: Tornado2011-04-19: Tornado2021-08-11: Tornado2023-04-01: Tornado2023-04-01: Tornado2023-04-01: Tornado2007-08-22: Flood2011-05-11: Flood2011-05-14: Flood2014-05-28: Flood2015-06-16: Flood2019-04-26: Flood2020-07-09: Flood2026-06-17: Wind2026-06-17: Wind2026-05-19: Wind2025-06-18: Wind2025-06-18: Wind2025-05-16: Wind2025-05-16: Wind2025-04-02: Wind2023-08-24: Wind2023-07-29: Wind2023-04-01: Wind2023-04-01: Wind2023-04-01: Wind2023-02-27: Wind2023-02-27: Wind2022-06-13: Wind2022-06-13: Wind2022-05-21: Wind2022-05-21: Wind2022-05-21: Wind2022-05-03: Wind2022-03-06: Wind2021-08-11: Wind2021-08-11: Wind2020-07-09: Wind2020-06-10: Wind2020-05-26: Wind2020-05-10: Wind2019-08-14: Wind2019-07-10: Wind2018-08-06: Wind2017-07-16: Wind2017-06-13: Wind2017-03-01: Wind2017-03-01: Wind2017-03-01: Wind2016-07-13: Wind2015-08-03: Wind2015-05-26: Wind2014-07-27: Wind2013-11-17: Wind2013-11-17: Wind2013-07-10: Wind2013-07-10: Wind2013-07-10: Wind2013-07-10: Wind2013-06-26: Wind2013-04-10: Wind2013-04-10: Wind2012-08-04: Wind2012-08-04: Wind2012-07-05: Wind2012-06-29: Wind2012-06-29: Wind2012-06-29: Wind2012-06-29: Wind2011-09-03: Wind2011-07-22: Wind2011-07-22: Wind2011-07-11: Wind2011-07-11: Wind2011-06-21: Wind2011-06-04: Wind2011-06-04: Wind2011-05-25: Wind2010-10-26: Wind2010-10-26: Wind2010-08-04: Wind2010-07-28: Wind2010-06-23: Wind2010-06-11: Wind2010-06-05: Wind2010-05-14: Wind2009-06-01: Wind2009-06-01: Wind2009-05-27: Wind2008-06-25: Wind2008-06-15: Wind2008-06-09: Wind2008-06-09: Wind2008-06-09: Wind2007-08-08: Wind2006-07-02: Wind2006-06-22: Wind2006-06-22: Wind2006-06-22: Wind2006-06-22: Wind2006-06-22: Wind2006-06-22: Wind2006-06-22: Wind2006-06-22: Wind2006-05-25: Wind2005-08-13: Wind2005-07-21: Wind2005-06-05: Wind2004-06-13: Wind2004-05-23: Wind2003-08-26: Wind2003-08-26: Wind2003-07-27: Wind2003-07-08: Wind
Allen County within Ohio. Dots: HailTornadoFloodWind event locations in the kept record. Boundaries: US Census Bureau.

NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. NCEI storm records through 30 Jun 2026; OpenFEMA declarations refreshed 1 Oct 2026; NFIP claims as of 8 Sep 2026.

Allen County, Ohio, has 392 weather events in the NCEI Storm Events record since 1950, most of them damaging wind.

That is 97.4 events per 100 square miles, below the Ohio figure of 126.7, and 38.6 per 10,000 residents against 44.0 statewide.

7 events fall in the 12 months to 30 Jun 2026. NCEI attributes 11 deaths and 135 injuries to events in the county, with property damage estimated at $9.4M and crop damage at $55K.

FEMA has designated the county in 10 federal disaster declarations since 1953; the most recent is Covid-19 Pandemic (major disaster, 31 Mar 2020).

National Flood Insurance Program policyholders in the county filed 259 claims since 1978, of which 203 were paid, totalling $4.1M (about $20K per paid claim). FEMA counts 163 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Relatively Low" and its expected annual loss as "Relatively Low" ($32M a year across 18 hazards).

4 tropical storm or hurricane tracks in the HURDAT2 record passed within 100 miles of the county's centre at tropical-storm strength or more, 0 of them within 50 miles at hurricane strength.

7events, last 12 monthsto 30 Jun 2026
392events since 195011 deaths, 135 injuries recorded
10disaster declarationslast 31 Mar 2020
259NFIP flood claims$4.1M paid

Compared with Ohio and the United States

MeasureAllen CountyOhioUS
Recorded events since 195039251,7771,977,440
Events per 100 square miles97.4126.756.0
Events per 10,000 residents38.644.059.6
Events in the last 12 months71,44262,008
Deaths recorded by NCEI1146026,435
Property damage (NCEI estimates)$9.4M$8.4B$575B
NFIP claims per 1,000 residents2.52.48.1
Average paid NFIP claim$20K$17K$43K
Claims per 100 policies in force, last 10 years29.416.216.1

County-recorded events plus zone-recorded events whose forecast zone is named for the county. State and US rows include events recorded only by forecast zone. Rates use 2021 Census population and land area.

Events by decade

Hail: 1Tornado: 1Wind: 2
Hail: 2Tornado: 2Wind: 4
Tornado: 4Wind: 8
Hail: 11Tornado: 3Wind: 18
Hail: 12Tornado: 2Flood: 4Wind: 35Winter: 4Cold: 1
Hail: 11Tornado: 3Flood: 3Wind: 57Winter: 18Lightning: 3
Hail: 19Tornado: 4Flood: 5Wind: 51Winter: 39Cold: 3
Hail: 8Tornado: 4Flood: 1Wind: 34Winter: 12Cold: 2Other: 1
41950s81960s121970s321980s581990s952000s1212010s622020s
Recorded events in Allen County by decade and hazard group. HailTornadoFloodWindWinterColdLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 217 events in the 20 years to 2025 against 125 in the 20 years before. Reporting practice changed in 1996 and again with automated reports in the 2000s, so decade totals measure the record as much as the weather.

Events by type

Wind209
Winter73
Hail64
Tornado23
Flood13
Cold6
Lightning3
Other1
HazardEventsDeathsShare of state's events
■ Wind209—0.9%detail
■ Winter73—1.0%detail
■ Hail64—0.7%detail
■ Tornado23111.5%detail
■ Flood13—0.2%detail
■ Cold6—0.7%
■ Lightning3—1.2%
■ Other1—0.3%

Hazard pages exist for hail, tornado, flood, wind and winter where the county has at least 10 recorded events. "Other" covers heavy rain, debris flow, dust, funnel clouds and similar reports.

Largest recorded events

DateEvent typeGroupMagnitudeProperty damageCrop damageDeathsInjuriesGeography
11 Apr 1965TornadoTornadoF4$2.5M—11100County
19 Jul 1950TornadoTornadoF3$2.5M——30County
22 Jun 2006Thunderstorm WindWind81 mph$200K——2County
8 Apr 1980TornadoTornadoF1$250K——1County
27 Jul 1989Thunderstorm WindWind0 mph———1County
9 Jun 2008Thunderstorm WindWind69 mph———1County
22 Jun 2006Thunderstorm WindWind81 mph$1.6M———County
22 Aug 2007Flash FloodFlood—$500K———County
8 Apr 1980TornadoTornadoF1$250K———County
21 Jun 1981TornadoTornadoF1$250K———County
20 Apr 2003Thunderstorm WindWind63 mph$100K———County
28 May 2014Flash FloodFlood—$100K———County

Ranked by deaths, then injuries, then NCEI's damage estimate. Deaths and injuries are NCEI counts (direct plus indirect); no personal details are recorded here.

Federal disaster declarations

DeclaredNumberTypeIncidentTitlePrograms
31 Mar 2020DR-4507Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3457EmergencyBiologicalCovid-19Public assistance
20 Aug 2012DR-4077Major disasterSevere StormSevere Storms And Straight-Line WindsPublic assistance
30 Jun 2012EM-3346EmergencySevere StormSevere StormsPublic assistance
27 Aug 2007DR-1720Major disasterSevere StormSevere Storms, Flooding, And TornadoesIndividual assistance, Public assistance
13 Sep 2005EM-3250EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
15 Feb 2005DR-1580Major disasterSevere StormSevere Winter Storms, Flooding, And MudslidesPublic assistance
19 Sep 2004DR-1556Major disasterSevere StormSevere Storms And Flooding—
26 Jan 1978EM-3055EmergencySnowstormBlizzards & SnowstormsPublic assistance
14 Apr 1965DR-191Major disasterTornadoTornadoes & Severe StormsIndividual assistance, Public assistance

Declarations in which FEMA designated this county, from the OpenFEMA Disaster Declarations Summaries (v2). DR: major disaster; EM: emergency; FM: fire management assistance. Programs show whether individual or public assistance was made available.

Flood insurance claims

197820022026
NFIP claims by year of loss in Allen County, 1978 to 2026 (hover for the amount paid).
Claims since 1978259
Paid claims203
Total paid$4.1M
Average paid claim$20K
Repetitive-loss properties254 severe
Residential policies in force1630.4% of 38,724 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202322$8,219$4,109
202222$4,410$2,205
202111$1,146$1,146
202022$3,239$1,620
20192725$522,605$20,904
201833$27,860$9,287
2017112$11,204$5,602
201631$27,500$27,500
20154734$1,243,724$36,580
201411$14,595$14,595
201355$128,539$25,708
20113324$545,175$22,716
200976$46,081$7,680
20081010$390,087$39,009
20072520$872,323$43,616
200610$0—
200531$415$415
200421$2,577$2,577
200310$0—
1997109$55,697$6,189
199299$28,222$3,136
199022$7,387$3,693
198911$3,452$3,452
198810$0—
198643$16,385$5,462

OpenFEMA NFIP claims (v3, as of 8 Sep 2026), aggregated by year of loss; amounts are building, contents and increased-cost-of-compliance payments as recorded. Repetitive-loss counts from the NFIP Multiple Loss Properties file (2 Aug 2026); policies in force from the NFIP Residential Penetration Rates file (3 Aug 2026).

National Risk Index

Overall riskRelatively Lowscore 73.3 of 100
Expected annual loss$32MRelatively Low
Social vulnerabilityRelatively Moderate
Community resilienceVery High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Moderate$22,506,732
TornadoRelatively Moderate$2,983,779
EarthquakeRelatively Low$2,301,641
Strong windRelatively Moderate$1,366,339
HailRelatively Moderate$833,836
Cold waveRelatively Low$632,621
Heat waveRelatively Low$409,429
Ice stormRelatively Moderate$356,179
LightningRelatively Low$290,508
Winter weatherRelatively Moderate$191,619
HurricaneVery Low$54,199
WildfireVery Low$2,964
LandslideVery Low$297

FEMA National Risk Index, December 2025 release. Ratings are FEMA's relative comparison of counties; expected annual loss is FEMA's modelled estimate of average yearly building, population and agriculture loss. See how to read the NRI.

Hurricane and tropical storm passes

Tracks within 100 miles4
Tracks within 50 miles1
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Opal199597 mi46 mph
Unnamed Atlantic storm191533 mi40 mph
Unnamed Atlantic storm190269 mi40 mph
Unnamed Atlantic storm189294 mi58 mph

HURDAT2 best-track positions at tropical-storm strength (34 kt) or more, measured from the county's Census centre point; through the 2025 season. Distance from a track is not the same as the extent of the storm's wind, rain or surge.

ZIP codes with flood claims

ZIP codes whose NFIP claims carry this county's code, with the number of claims. Five or more claims are needed for a ZIP page to be indexed.

Questions and answers

How often does it hail in Allen County, OH?

NCEI records 64 hail events in Allen County since 1950, in 26 different years; that is about 0.8 recorded events a year. 12 reports were golf-ball size (1.75 in) or larger.

Has Allen County had a tornado?

Yes. NCEI records 23 tornadoes in Allen County since 1950, 3 of them rated (E)F2 or stronger. Tornado deaths recorded: 11.

When was the last federal disaster declaration for Allen County?

31 Mar 2020: Covid-19 Pandemic, a major disaster declaration for biological. The county appears in 10 declarations since 1953.

How many flood insurance claims have been filed in Allen County, and how much was paid?

259 NFIP claims since 1978, 203 of them paid, for $4.1M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Allen County in the National Risk Index's high-risk band?

FEMA's National Risk Index (December 2025) rates the county "Relatively Low" for overall risk, "Relatively Low" for expected annual loss, "Relatively Moderate" for social vulnerability and "Very High" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Allen County compare with the rest of Ohio?

97.4 recorded events per 100 square miles against 126.7 statewide, and 2.5 NFIP claims per 1,000 residents against 2.4. The comparison table on this page shows each measure beside the state and national figures.

Provenance

Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026 (public domain). Declarations: OpenFEMA DisasterDeclarationsSummaries v2, refreshed 1 Oct 2026. Flood claims: OpenFEMA NfipClaims v3 as of 8 Sep 2026; NfipMultipleLossProperties v1 (2 Aug 2026); NfipResidentialPenetrationRates v1 (3 Aug 2026). Risk index: FEMA National Risk Index, December 2025. Hurricane tracks: NHC HURDAT2 through 2025. Population and area: US Census Bureau, 2021 vintage. Built 1 Oct 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.