County Hazards

States › Kansas › Allen County

Allen County, Kansas

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

FIPS 20001 · 12,464 residents (2021) · 500 sq mi · dominant hazard Hail

Hail · 196Tornado · 26Flood · 58Wind · 154Winter · 51
1964-04-22: Hail1966-05-15: Hail1972-05-25: Hail1974-08-19: Hail1977-05-04: Hail1977-05-04: Hail1977-05-16: Hail1986-04-07: Hail1986-08-01: Hail1986-08-01: Hail1987-06-27: Hail1990-05-25: Hail1990-05-25: Hail1991-05-03: Hail1991-05-04: Hail1992-07-04: Hail1992-04-09: Hail1992-07-04: Hail1992-07-04: Hail1996-05-26: Hail1996-05-26: Hail1996-07-22: Hail1996-07-22: Hail1997-03-24: Hail1998-04-14: Hail1998-06-18: Hail1998-06-30: Hail2000-05-16: Hail2000-09-11: Hail2001-04-09: Hail2001-06-03: Hail2001-07-25: Hail2002-05-12: Hail2002-05-12: Hail2002-07-09: Hail2003-08-05: Hail2003-08-05: Hail2003-08-05: Hail2003-08-05: Hail2003-03-12: Hail2003-04-30: Hail2003-04-30: Hail2003-04-30: Hail2003-04-30: Hail2003-04-30: Hail2003-04-30: Hail2003-03-12: Hail2003-04-30: Hail2003-03-12: Hail2003-03-12: Hail2003-04-30: Hail2003-05-04: Hail2003-05-04: Hail2003-05-09: Hail2003-05-06: Hail2003-05-06: Hail2003-05-06: Hail2003-05-06: Hail2003-05-06: Hail2003-05-06: Hail2003-05-06: Hail2003-06-10: Hail2003-06-10: Hail2003-06-10: Hail2003-06-10: Hail2003-07-11: Hail2003-07-11: Hail2003-07-12: Hail2003-07-09: Hail2003-07-09: Hail2003-07-09: Hail2003-07-09: Hail2004-05-26: Hail2004-03-29: Hail2004-06-12: Hail2005-04-21: Hail2005-06-30: Hail2005-06-30: Hail2005-06-30: Hail2005-09-13: Hail2005-09-13: Hail2006-04-15: Hail2006-04-15: Hail2006-05-03: Hail2006-05-03: Hail2006-04-15: Hail2006-04-15: Hail2006-04-15: Hail2006-03-12: Hail2006-05-03: Hail2008-05-13: Hail2008-05-13: Hail2008-05-31: Hail2008-05-01: Hail2008-05-01: Hail2008-05-01: Hail2008-05-01: Hail2008-05-01: Hail2008-06-23: Hail2009-05-13: Hail2009-05-13: Hail2009-05-13: Hail2009-05-13: Hail2009-05-13: Hail1950-07-18: Tornado1953-05-10: Tornado1964-04-20: Tornado1971-05-31: Tornado1973-06-04: Tornado1977-03-11: Tornado1977-05-04: Tornado1982-03-15: Tornado1984-03-15: Tornado1984-03-15: Tornado1986-05-27: Tornado1986-05-27: Tornado1990-05-25: Tornado1990-05-25: Tornado1991-03-26: Tornado2003-05-08: Tornado2003-05-06: Tornado2005-11-27: Tornado2006-03-30: Tornado2007-02-28: Tornado2007-02-28: Tornado2008-05-01: Tornado2008-05-01: Tornado2009-06-09: Tornado2024-04-26: Tornado2007-04-14: Flood2007-06-29: Flood2007-06-12: Flood2007-07-01: Flood2007-07-02: Flood2008-05-07: Flood2008-05-01: Flood2009-05-08: Flood2009-09-09: Flood2010-06-16: Flood2010-07-06: Flood2010-07-07: Flood2013-08-09: Flood2013-08-09: Flood2013-08-04: Flood2014-09-18: Flood2014-04-02: Flood2015-08-27: Flood2015-05-16: Flood2016-04-27: Flood2016-04-27: Flood2016-04-26: Flood2016-09-09: Flood2016-09-09: Flood2016-08-25: Flood2016-10-06: Flood2016-10-06: Flood2017-04-29: Flood2018-05-14: Flood2018-05-14: Flood2018-08-30: Flood2018-10-08: Flood2018-10-08: Flood2018-10-08: Flood2018-10-09: Flood2019-04-30: Flood2019-05-08: Flood2019-08-08: Flood2019-08-08: Flood2019-08-11: Flood2019-08-11: Flood2019-09-28: Flood2020-05-28: Flood2020-05-22: Flood2021-03-12: Flood2022-06-01: Flood2023-08-13: Flood1956-07-03: Wind1964-04-12: Wind1970-06-11: Wind1971-05-31: Wind1972-05-25: Wind1973-06-16: Wind1973-09-24: Wind1982-05-30: Wind1987-07-05: Wind1990-05-25: Wind1991-03-27: Wind1991-05-04: Wind1992-07-04: Wind1996-07-04: Wind1996-07-22: Wind1996-07-22: Wind1996-07-22: Wind1997-05-25: Wind1997-03-27: Wind1998-09-29: Wind1998-06-29: Wind1998-08-26: Wind1998-08-26: Wind1998-06-29: Wind1999-05-17: Wind2000-05-27: Wind2000-05-27: Wind2000-05-27: Wind2000-05-27: Wind2000-05-27: Wind2001-06-03: Wind2001-06-14: Wind2001-06-14: Wind2001-06-14: Wind2001-06-14: Wind2001-07-25: Wind2001-07-25: Wind2001-07-25: Wind2001-07-25: Wind2002-03-08: Wind2002-03-08: Wind2003-04-19: Wind2003-04-16: Wind2004-06-12: Wind2004-08-28: Wind2005-06-30: Wind2005-08-24: Wind2005-08-24: Wind2006-04-23: Wind2006-08-17: Wind2008-10-06: Wind2008-10-06: Wind2008-06-28: Wind2009-03-09: Wind2009-06-15: Wind2009-08-10: Wind2009-06-09: Wind2009-07-08: Wind2009-07-08: Wind2009-07-08: Wind2009-06-16: Wind2010-06-08: Wind2010-06-16: Wind2010-06-16: Wind2010-04-02: Wind2011-06-20: Wind2011-07-31: Wind2012-09-07: Wind2013-06-27: Wind2013-06-27: Wind2013-06-27: Wind2014-04-13: Wind2014-04-13: Wind2014-09-01: Wind2015-04-08: Wind2015-04-08: Wind2015-04-08: Wind2015-09-10: Wind2015-09-10: Wind2015-07-14: Wind2016-09-15: Wind2016-10-06: Wind2016-10-06: Wind2017-06-17: Wind2017-06-17: Wind2017-06-17: Wind2017-08-16: Wind2017-08-16: Wind2017-09-16: Wind2017-10-14: Wind2017-10-14: Wind2017-03-06: Wind2018-07-19: Wind2018-07-19: Wind2018-08-16: Wind2018-08-16: Wind2019-06-23: Wind2019-05-06: Wind2019-08-15: Wind2019-08-15: Wind2019-08-12: Wind2019-08-12: Wind2020-05-03: Wind2020-05-03: Wind
Allen County within Kansas. 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.

Between 1950 and 2026, NCEI recorded 563 storm events in Allen County, Kansas, led by hail.

That is 112.5 events per 100 square miles, in line with the Kansas figure of 115.0, and 451.7 per 10,000 residents against 320.3 statewide.

14 events fall in the 12 months to 30 Jun 2026. NCEI attributes 3 deaths and 11 injuries to events in the county, with property damage estimated at $17M and crop damage at $1.4M.

FEMA has designated the county in 14 federal disaster declarations since 1953; the most recent is Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (major disaster, 15 Jul 2024).

National Flood Insurance Program policyholders in the county filed 91 claims since 1978, of which 82 were paid, totalling $3.3M (about $41K per paid claim). FEMA counts 53 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Very Low" and its expected annual loss as "Very Low" ($7.7M a year across 18 hazards).

14events, last 12 monthsto 30 Jun 2026
563events since 19503 deaths, 11 injuries recorded
14disaster declarationslast 15 Jul 2024
91NFIP flood claims$3.3M paid

Compared with Kansas and the United States

MeasureAllen CountyKansasUS
Recorded events since 195056394,0071,977,440
Events per 100 square miles112.5115.056.0
Events per 10,000 residents451.7320.359.6
Events in the last 12 months142,35762,008
Deaths recorded by NCEI347526,435
Property damage (NCEI estimates)$17M$5.3B$575B
NFIP claims per 1,000 residents7.32.78.1
Average paid NFIP claim$41K$19K$43K
Claims per 100 policies in force, last 10 years13.215.916.1

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

Tornado: 2Wind: 1
Hail: 2Tornado: 1Wind: 1
Hail: 5Tornado: 4Wind: 5
Hail: 4Tornado: 5Wind: 2
Hail: 21Tornado: 3Flood: 2Wind: 21Winter: 1Lightning: 1
Hail: 93Tornado: 10Flood: 16Wind: 43Winter: 19Heat: 1Cold: 1Lightning: 1Other: 1
Hail: 44Flood: 35Wind: 45Winter: 18Heat: 11Cold: 1Drought: 20Other: 4
Hail: 27Tornado: 1Flood: 5Wind: 36Winter: 13Heat: 1Cold: 1Drought: 19Other: 16
31950s41960s141970s111980s491990s1852000s1782010s1192020s
Recorded events in Allen County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 368 events in the 20 years to 2025 against 156 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

Hail196
Wind154
Flood58
Winter51
Drought39
Tornado26
Other21
Heat13
Cold3
Lightning2
HazardEventsDeathsShare of state's events
■ Hail196—0.5%detail
■ Wind154—0.5%detail
■ Flood58—1.3%detail
■ Winter5120.7%detail
■ Drought39—1.3%
■ Tornado26—0.5%detail
■ Other21—1.0%
■ Heat1311.4%
■ Cold3—0.4%
■ Lightning2—0.6%

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
1 Dec 2008Winter WeatherWinter—$25K—12Forecast zone
16 Jul 2006HeatHeat———1—Forecast zone
23 Feb 2008Winter WeatherWinter———1—Forecast zone
31 May 1971TornadoTornadoF1$25K——3County
18 Dec 2008Winter WeatherWinter—$25K——3Forecast zone
26 Mar 1991TornadoTornadoF2$2.5M——1County
8 May 2009Thunderstorm WindWind70 mph$10K——1County
11 Jun 2021Thunderstorm WindWind64 mph———1County
1 Jul 2007Flash FloodFlood—$6.0M———County
15 Mar 1982TornadoTornadoF2$2.5M———County
8 Jul 2009Thunderstorm WindWind81 mph—$1.0M——County
6 Oct 2016Thunderstorm WindWind90 mph$750K———County
6 Oct 2016Flash FloodFlood—$500K$100——County
9 Apr 1994Thunderstorm WindWind109 mph$500K———County
6 May 2003HailHail1.75 in$500K———County
2 Apr 2014HailHail2.50 in$350K$100——County
11 Mar 1977TornadoTornadoF1$250K———County
1 Jan 1999Winter StormWinter—$250K———Forecast zone
7 Sep 2001Thunderstorm WindWind81 mph$250K———County
6 Oct 2016Flash FloodFlood—$200K$50K——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
15 Jul 2024DR-4800Major disasterSevere StormSevere Storms, Straight-Line Winds, Tornadoes, And FloodingPublic assistance
26 Oct 2023DR-4747Major disasterSevere StormSevere Storms, Straight-Line Winds, Tornadoes, And FloodingPublic assistance
29 Mar 2020DR-4504Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3481EmergencyBiologicalCovid-19Public assistance
20 Jun 2019DR-4449Major disasterSevere StormSevere Storms, Straight-Line Winds, Tornadoes, Flooding,Landslides,And MudslidesPublic assistance
28 May 2019EM-3412EmergencySevere StormTornadoes And FloodingPublic assistance
9 Mar 2010DR-1885Major disasterSevere StormSevere Winter Storms And SnowstormPublic assistance
12 Dec 2007EM-3282EmergencySevere StormSevere Winter StormsPublic assistance
2 Jul 2007DR-1711Major disasterSevere StormSevere Storms And FloodingIndividual assistance, Public assistance
10 Sep 2005EM-3236EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
6 May 2003DR-1462Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance, Public assistance
6 Feb 2002DR-1402Major disasterSevere Ice StormSevere Winter Ice StormIndividual assistance, Public assistance
22 Oct 1986DR-780Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
15 Jul 1969DR-267Major disasterTornadoTornadoes, Severe Storms & FloodingIndividual 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 197891
Paid claims82
Total paid$3.3M
Average paid claim$41K
Repetitive-loss properties10 severe
Residential policies in force530.9% of 5,954 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202444$291,091$72,773
201911$4,390$4,390
201821$302,211$302,211
20076862$2,668,632$43,042
199520$0—
199455$50,170$10,034
198688$23,295$2,912
197911$5,186$5,186

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 riskVery Lowscore 15.3 of 100
Expected annual loss$7.7MVery Low
Social vulnerabilityVery Low
Community resilienceRelatively Moderate
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingVery Low$3,920,093
TornadoRelatively Low$867,768
Strong windRelatively Low$611,922
Heat waveRelatively Low$587,102
Cold waveRelatively Low$558,799
LightningRelatively Low$286,188
DroughtRelatively Low$278,455
HailRelatively Low$266,912
Ice stormRelatively Low$153,405
Winter weatherRelatively Low$109,129
EarthquakeVery Low$83,939
WildfireVery Low$11,456
HurricaneVery Low$5,616
LandslideVery Low$73

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

No HURDAT2 track at tropical-storm strength passes within 100 miles of the county's centre point (through the 2025 season).

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, KS?

NCEI records 196 hail events in Allen County since 1950, in 38 different years; that is about 2.5 recorded events a year. 46 reports were golf-ball size (1.75 in) or larger.

Has Allen County had a tornado?

Yes. NCEI records 26 tornadoes in Allen County since 1950, 4 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Allen County?

15 Jul 2024: Severe Storms, Straight-Line Winds, Tornadoes, And Flooding, a major disaster declaration for severe storm. The county appears in 14 declarations since 1953.

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

91 NFIP claims since 1978, 82 of them paid, for $3.3M 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 "Very Low" for overall risk, "Very Low" for expected annual loss, "Very Low" for social vulnerability and "Relatively Moderate" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Allen County compare with the rest of Kansas?

112.5 recorded events per 100 square miles against 115.0 statewide, and 7.3 NFIP claims per 1,000 residents against 2.7. 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.