County Hazards

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Wapello County, Iowa

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

FIPS 19179 · 35,256 residents (2021) · 432 sq mi · dominant hazard Wind

Hail · 125Tornado · 27Flood · 119Wind · 284Winter · 69
1966-10-14: Hail1966-04-19: Hail1970-04-29: Hail1971-05-18: Hail1972-07-14: Hail1973-05-21: Hail1973-06-18: Hail1976-08-05: Hail1982-09-13: Hail1985-03-27: Hail1985-03-27: Hail1986-06-28: Hail1989-04-27: Hail1989-04-27: Hail1989-04-27: Hail1989-06-26: Hail1990-08-29: Hail1996-04-18: Hail1996-04-18: Hail1996-04-18: Hail1996-04-18: Hail1998-05-20: Hail1998-05-20: Hail1998-05-19: Hail1998-05-20: Hail1998-05-20: Hail1998-05-20: Hail1998-05-19: Hail2000-05-18: Hail2000-06-01: Hail2000-06-01: Hail2000-06-01: Hail2000-09-22: Hail2001-05-13: Hail2002-04-24: Hail2002-04-24: Hail2002-05-31: Hail2002-05-31: Hail2002-05-31: Hail2002-06-12: Hail2002-05-31: Hail2003-08-01: Hail2003-08-01: Hail2003-04-30: Hail2003-04-30: Hail2003-04-30: Hail2003-04-30: Hail2003-04-30: Hail2003-04-30: Hail2004-05-30: Hail2005-06-08: Hail2005-09-13: Hail2006-03-12: Hail2006-03-08: Hail2006-03-12: Hail2006-06-06: Hail2006-06-06: Hail2007-04-03: Hail2007-06-27: Hail2007-03-31: Hail2008-06-12: Hail2008-06-12: Hail2008-06-20: Hail2009-02-17: Hail2009-02-17: Hail2010-04-04: Hail2010-04-04: Hail2010-04-30: Hail2010-04-30: Hail2010-04-30: Hail2010-04-30: Hail2011-05-29: Hail2011-05-29: Hail2011-05-22: Hail2011-05-11: Hail2011-06-14: Hail2012-04-14: Hail2012-04-14: Hail2012-04-25: Hail2013-06-23: Hail2013-05-28: Hail2014-06-22: Hail2014-04-27: Hail2014-04-12: Hail2014-05-11: Hail2014-05-11: Hail2014-05-11: Hail2014-05-11: Hail2014-05-11: Hail2014-05-11: Hail2015-06-20: Hail2015-06-28: Hail2015-06-20: Hail2015-04-07: Hail2015-04-07: Hail2015-04-07: Hail2015-04-07: Hail2015-09-18: Hail2015-09-18: Hail2017-05-17: Hail2018-07-19: Hail2018-06-28: Hail2019-04-07: Hail2020-05-14: Hail2022-08-29: Hail2023-03-31: Hail2023-03-31: Hail2023-06-24: Hail2023-06-24: Hail2023-06-24: Hail2023-06-24: Hail2023-06-24: Hail1958-06-08: Tornado1971-05-18: Tornado1972-07-17: Tornado1976-08-24: Tornado1977-03-28: Tornado1982-09-13: Tornado1987-04-14: Tornado1987-04-14: Tornado1988-05-08: Tornado1988-05-08: Tornado1988-11-15: Tornado1990-06-16: Tornado1990-06-16: Tornado1990-06-16: Tornado1998-05-15: Tornado1998-03-30: Tornado1999-04-08: Tornado2000-06-01: Tornado2003-04-30: Tornado2003-04-30: Tornado2008-06-08: Tornado2014-04-27: Tornado2015-06-20: Tornado2018-06-20: Tornado2023-03-31: Tornado2007-04-25: Flood2007-08-23: Flood2007-08-23: Flood2007-08-24: Flood2007-08-24: Flood2007-05-07: Flood2007-04-26: Flood2008-08-01: Flood2008-03-02: Flood2008-03-02: Flood2008-03-03: Flood2008-05-11: Flood2008-04-18: Flood2008-06-12: Flood2008-06-12: Flood2008-06-08: Flood2009-04-30: Flood2009-06-18: Flood2009-03-08: Flood2009-03-25: Flood2010-06-19: Flood2010-06-19: Flood2010-01-24: Flood2010-04-24: Flood2010-03-11: Flood2010-03-13: Flood2010-06-15: Flood2010-06-15: Flood2010-06-15: Flood2010-06-02: Flood2010-06-22: Flood2010-06-12: Flood2010-06-12: Flood2010-04-01: Flood2010-08-20: Flood2010-08-13: Flood2010-09-24: Flood2010-08-01: Flood2010-08-20: Flood2010-08-20: Flood2010-08-20: Flood2010-08-20: Flood2010-08-09: Flood2010-08-20: Flood2010-06-12: Flood2010-07-04: Flood2010-07-01: Flood2010-09-01: Flood2011-07-01: Flood2011-05-25: Flood2011-05-29: Flood2011-06-10: Flood2011-06-15: Flood2011-06-27: Flood2013-04-17: Flood2013-05-28: Flood2013-05-28: Flood2013-05-28: Flood2013-05-28: Flood2013-05-28: Flood2013-05-28: Flood2013-05-28: Flood2013-05-28: Flood2014-09-10: Flood2014-10-14: Flood2014-10-14: Flood2015-06-25: Flood2015-07-27: Flood2015-07-29: Flood2015-07-16: Flood2015-12-21: Flood2015-12-13: Flood2016-01-07: Flood2016-01-11: Flood2016-02-22: Flood2016-02-21: Flood2017-04-05: Flood2019-03-12: Flood2019-04-29: Flood2019-04-30: Flood2019-06-01: Flood2019-03-12: Flood2019-07-01: Flood2019-05-28: Flood2019-05-22: Flood2019-05-25: Flood2019-05-17: Flood2019-05-18: Flood2021-06-24: Flood2021-06-24: Flood2025-07-22: Wind2025-07-20: Wind2025-03-14: Wind2024-07-31: Wind2024-07-30: Wind2024-07-30: Wind2024-07-30: Wind2024-05-07: Wind2024-04-16: Wind2023-07-28: Wind2023-06-29: Wind2023-06-29: Wind2023-06-29: Wind2023-03-31: Wind2022-07-05: Wind2021-12-15: Wind2021-06-24: Wind2021-06-18: Wind2021-03-23: Wind2020-08-10: Wind2019-08-20: Wind2019-07-20: Wind2019-07-20: Wind2019-07-20: Wind2019-06-28: Wind2019-06-28: Wind2019-06-28: Wind2019-06-28: Wind2019-06-15: Wind2018-09-18: Wind2018-08-28: Wind2018-08-28: Wind2018-08-28: Wind2018-08-28: Wind2018-08-28: Wind2018-07-19: Wind2018-07-13: Wind2018-06-28: Wind2018-06-28: Wind2018-06-28: Wind2018-06-14: Wind2018-06-14: Wind2018-06-14: Wind2017-07-03: Wind2017-05-17: Wind2017-03-06: Wind2017-03-06: Wind2017-03-06: Wind2016-07-06: Wind2016-07-06: Wind2015-11-11: Wind2015-11-11: Wind2015-11-11: Wind2015-07-28: Wind2015-07-28: Wind2015-07-28: Wind2015-07-28: Wind2015-07-28: Wind2015-07-28: Wind2015-07-24: Wind2015-06-20: Wind2015-06-20: Wind2015-06-20: Wind2015-06-20: Wind2015-06-20: Wind2015-06-20: Wind2015-06-20: Wind2015-06-20: Wind2015-06-20: Wind2015-06-20: Wind2014-07-06: Wind2014-06-22: Wind2014-05-11: Wind2014-05-11: Wind2014-05-11: Wind2014-04-27: Wind2014-04-27: Wind2014-04-27: Wind2014-04-27: Wind2014-04-27: Wind2014-04-27: Wind2013-09-19: Wind2013-05-19: Wind2013-05-19: Wind2013-05-19: Wind2013-05-19: Wind2013-04-17: Wind2013-04-17: Wind2012-06-16: Wind2012-06-16: Wind2012-06-16: Wind2012-06-16: Wind2012-06-16: Wind2012-06-16: Wind2012-06-16: Wind2011-08-06: Wind2011-08-06: Wind2011-08-06: Wind2011-06-26: Wind2011-06-13: Wind2011-05-29: Wind2011-05-29: Wind2010-06-26: Wind2010-06-22: Wind2010-06-18: Wind2010-06-01: Wind2010-06-01: Wind2010-06-01: Wind2010-06-01: Wind2010-06-01: Wind2009-06-23: Wind2009-06-23: Wind2009-06-23: Wind2009-06-19: Wind2009-06-19: Wind
Wapello County within Iowa. 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.

The NCEI record lists 770 events for Wapello County, Iowa, between 1950 and 2026; damaging wind account for the largest share.

That is 178.3 events per 100 square miles, above the Iowa figure of 124.6, and 218.4 per 10,000 residents against 218.0 statewide.

2 events fall in the 12 months to 30 Jun 2026. NCEI attributes 2 deaths and 65 injuries to events in the county, with property damage estimated at $61M and crop damage at $128M.

FEMA has designated the county in 20 federal disaster declarations since 1953; the most recent is Covid-19 Pandemic (major disaster, 23 Mar 2020).

National Flood Insurance Program policyholders in the county filed 119 claims since 1978, of which 101 were paid, totalling $2.4M (about $24K per paid claim). FEMA counts 23 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" ($24M a year across 18 hazards).

1 tropical storm or hurricane track 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.

2events, last 12 monthsto 30 Jun 2026
770events since 19502 deaths, 65 injuries recorded
20disaster declarationslast 23 Mar 2020
119NFIP flood claims$2.4M paid

Compared with Iowa and the United States

MeasureWapello CountyIowaUS
Recorded events since 195077069,6061,977,440
Events per 100 square miles178.3124.656.0
Events per 10,000 residents218.4218.059.6
Events in the last 12 months21,46762,008
Deaths recorded by NCEI222326,435
Property damage (NCEI estimates)$61M$6.5B$575B
NFIP claims per 1,000 residents3.44.68.1
Average paid NFIP claim$24K$30K$43K
Claims per 100 policies in force, last 10 years30.421.816.1

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: 1Wind: 4
Hail: 2Wind: 18
Hail: 6Tornado: 4Wind: 24
Hail: 8Tornado: 6Wind: 26
Hail: 12Tornado: 7Flood: 14Wind: 30Winter: 16Cold: 7Drought: 1Lightning: 1Other: 1
Hail: 45Tornado: 5Flood: 35Wind: 67Winter: 26Heat: 1Cold: 1Drought: 4Other: 6
Hail: 38Tornado: 3Flood: 68Wind: 91Winter: 16Heat: 3Cold: 10Drought: 12Lightning: 1Other: 41
Hail: 14Tornado: 1Flood: 2Wind: 24Winter: 11Cold: 5Drought: 18Other: 34
51950s201960s341970s401980s891990s1902000s2832010s1092020s
Recorded events in Wapello County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 476 events in the 20 years to 2025 against 215 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

Wind284
Hail125
Flood119
Other82
Winter69
Drought35
Tornado27
Cold23
Heat4
Lightning2
HazardEventsDeathsShare of state's events
■ Wind284—1.4%detail
■ Hail125—0.8%detail
■ Flood119—1.6%detail
■ Other82—1.9%
■ Winter69—0.6%detail
■ Drought35—1.3%
■ Tornado2720.8%detail
■ Cold23—0.8%
■ Heat4—0.5%
■ Lightning2—0.5%

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 2001TornadoTornadoF2$400K—23County
24 Sep 2010FloodFlood—$10K——50County
27 Apr 2014Thunderstorm WindWind91 mph$100K——10County
1 Jul 2012DroughtDrought——$45M——Forecast zone
8 May 1988TornadoTornadoF2$25M———County
1 Aug 2013DroughtDrought——$21M——Forecast zone
20 Jul 2025Thunderstorm WindWind64 mph$15K——2County
12 Jun 2010FloodFlood——$20M——County
1 Aug 2003DroughtDrought—$13M———Forecast zone
1 Aug 2001DroughtDrought——$11M——Forecast zone
1 Aug 2012DroughtDrought——$6.0M——Forecast zone
1 Sep 2000DroughtDrought——$5.0M——Forecast zone
14 Aug 2000DroughtDrought——$4.7M——Forecast zone
20 Jul 1999DroughtDrought——$4.6M——Forecast zone
26 Oct 1997Heavy SnowWinter—$640K$2.6M——Forecast zone
13 Sep 1982TornadoTornadoF2$2.5M———County
10 Oct 2009Frost/FreezeCold——$2.5M——Forecast zone
1 Aug 2010FloodFlood—$2.0M$500K——County
8 Jun 2008FloodFlood—$1.0M$1.0M——County
31 Mar 2023TornadoTornadoEF2$2.0M———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
23 Mar 2020DR-4483Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3480EmergencyBiologicalCovid-19Public assistance
23 Mar 2019DR-4421Major disasterFloodSevere Storms And FloodingPublic assistance
2 Jul 2013DR-4126Major disasterSevere StormSevere Storms, Tornadoes, And FloodingPublic assistance
31 May 2013DR-4119Major disasterFloodSevere Storms, Straight-Line Winds, And FloodingPublic assistance
29 Jul 2010DR-1930Major disasterSevere StormSevere Storms, Flooding, And TornadoesIndividual assistance, Public assistance
27 May 2008DR-1763Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance, Public assistance
4 Jan 2008DR-1737Major disasterSevere Ice StormSevere Winter StormPublic assistance
14 Sep 2007DR-1727Major disasterSevere StormSevere Storms And FloodingPublic assistance
14 Mar 2007DR-1688Major disasterSevere StormSevere Winter StormsPublic assistance
10 Sep 2005EM-3239EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
25 May 2004DR-1518Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance
2 May 2001DR-1367Major disasterSevere StormSevere Storms, Tornadoes And FloodingIndividual assistance, Public assistance
2 Jul 1998DR-1230Major disasterFloodSevere Storms, Tornadoes And FloodingIndividual assistance, Public assistance
9 Jul 1993DR-996Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
26 May 1990DR-868Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
23 May 1973DR-386Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
14 Aug 1969DR-269Major disasterFloodHeavy Rains & FloodingIndividual assistance, Public assistance
25 Apr 1969DR-259Major disasterFloodFloodingIndividual assistance, Public assistance
22 Apr 1965DR-193Major disasterFloodFloodingIndividual 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 Wapello County, 1978 to 2026 (hover for the amount paid).
Claims since 1978119
Paid claims101
Total paid$2.4M
Average paid claim$24K
Repetitive-loss properties163 severe
Residential policies in force230.1% of 20,227 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202410$0—
202110$0—
201955$87,965$17,593
201387$123,500$17,643
201143$16,586$5,529
20104137$602,057$16,272
20083634$1,526,649$44,901
200021$28,249$28,249
199821$4,590$4,590
199611$3,663$3,663
199373$21,238$7,079
198298$13,652$1,707
198111$421$421
198010$0—

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 65.3 of 100
Expected annual loss$24MRelatively Low
Social vulnerabilityRelatively Moderate
Community resilienceRelatively High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Low$12,364,906
TornadoRelatively Moderate$4,191,195
DroughtRelatively High$3,851,477
Heat waveRelatively Low$1,135,117
Strong windRelatively Moderate$1,063,217
Cold waveRelatively Low$441,970
HailRelatively Low$409,917
LightningRelatively Low$249,230
EarthquakeVery Low$124,268
WildfireVery Low$91,993
Ice stormRelatively Low$65,442
Winter weatherRelatively Low$64,360
LandslideRelatively Low$7,945
HurricaneVery Low$1,968

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 miles1
Tracks within 50 miles1
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Unnamed Atlantic storm190032 mi46 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 Wapello County, IA?

NCEI records 125 hail events in Wapello County since 1950, in 35 different years; that is about 1.6 recorded events a year. 23 reports were golf-ball size (1.75 in) or larger.

Has Wapello County had a tornado?

Yes. NCEI records 27 tornadoes in Wapello County since 1950, 9 of them rated (E)F2 or stronger. Tornado deaths recorded: 2.

When was the last federal disaster declaration for Wapello County?

23 Mar 2020: Covid-19 Pandemic, a major disaster declaration for biological. The county appears in 20 declarations since 1953.

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

119 NFIP claims since 1978, 101 of them paid, for $2.4M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Wapello 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 "Relatively High" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Wapello County compare with the rest of Iowa?

178.3 recorded events per 100 square miles against 124.6 statewide, and 3.4 NFIP claims per 1,000 residents against 4.6. 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.