County Hazards

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Pocahontas 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 19151 · 7,074 residents (2021) · 577 sq mi · dominant hazard Hail

Hail · 145Tornado · 45Flood · 43Wind · 135Winter · 93
1969-09-06: Hail1970-05-11: Hail1970-05-11: Hail1972-08-05: Hail1973-07-08: Hail1974-06-18: Hail1974-06-18: Hail1974-08-17: Hail1980-06-18: Hail1981-06-12: Hail1985-04-20: Hail1986-09-26: Hail1986-07-28: Hail1986-07-28: Hail1986-05-12: Hail1987-09-14: Hail1987-09-14: Hail1989-08-13: Hail1991-04-29: Hail1991-04-29: Hail1992-05-16: Hail1998-09-01: Hail1998-09-01: Hail1998-06-24: Hail1999-09-07: Hail1999-06-06: Hail2000-07-25: Hail2000-07-25: Hail2000-07-02: Hail2000-07-02: Hail2001-05-09: Hail2001-05-09: Hail2001-05-13: Hail2001-05-10: Hail2001-04-20: Hail2001-04-20: Hail2001-05-09: Hail2001-05-09: Hail2001-04-20: Hail2001-04-20: Hail2001-06-11: Hail2001-06-11: Hail2001-06-11: Hail2002-04-24: Hail2002-04-24: Hail2002-04-24: Hail2002-04-17: Hail2002-04-17: Hail2002-04-17: Hail2003-07-31: Hail2003-07-31: Hail2003-07-31: Hail2004-04-18: Hail2004-04-17: Hail2004-04-18: Hail2004-04-17: Hail2004-04-17: Hail2004-06-08: Hail2004-06-11: Hail2004-09-17: Hail2004-08-26: Hail2004-08-26: Hail2005-05-08: Hail2006-05-08: Hail2006-07-01: Hail2007-06-16: Hail2009-07-22: Hail2009-07-22: Hail2009-07-22: Hail2009-07-22: Hail2009-07-22: Hail2009-07-22: Hail2010-07-17: Hail2011-06-04: Hail2011-03-22: Hail2011-04-09: Hail2011-04-09: Hail2011-04-09: Hail2011-06-04: Hail2012-05-04: Hail2013-07-25: Hail2013-07-25: Hail2013-07-25: Hail2013-07-25: Hail2013-07-25: Hail2013-07-25: Hail2013-07-25: Hail2013-07-25: Hail2013-07-25: Hail2013-07-25: Hail2014-06-16: Hail2015-06-26: Hail2015-06-26: Hail2015-06-26: Hail2015-06-26: Hail2015-06-26: Hail2015-06-26: Hail2015-06-26: Hail2015-08-09: Hail2016-07-11: Hail2017-05-16: Hail2017-03-06: Hail2017-04-15: Hail2017-04-19: Hail2017-08-26: Hail2017-08-26: Hail2018-05-01: Hail2018-05-01: Hail1953-06-07: Tornado1965-06-02: Tornado1966-07-28: Tornado1977-05-04: Tornado1979-06-28: Tornado1980-05-29: Tornado1982-05-26: Tornado1984-04-26: Tornado1984-06-07: Tornado1984-06-07: Tornado1985-05-23: Tornado1985-08-13: Tornado1990-06-01: Tornado1990-06-19: Tornado1991-04-29: Tornado1991-04-29: Tornado1992-04-15: Tornado1998-05-28: Tornado2000-10-13: Tornado2010-07-22: Tornado2011-04-09: Tornado2011-04-09: Tornado2011-04-09: Tornado2011-04-09: Tornado2011-04-09: Tornado2011-04-09: Tornado2014-06-16: Tornado2018-05-28: Tornado2019-05-29: Tornado2021-08-20: Tornado2021-12-15: Tornado2021-12-15: Tornado2022-04-12: Tornado2023-05-13: Tornado2023-05-13: Tornado2023-05-13: Tornado2023-05-13: Tornado2023-05-13: Tornado2023-06-24: Tornado2024-04-16: Tornado2024-04-16: Tornado2024-04-16: Tornado2024-05-31: Tornado2005-05-08: Flood2006-04-01: Flood2007-08-21: Flood2008-06-11: Flood2010-06-12: Flood2018-06-14: Flood2018-06-14: Flood2023-05-13: Flood1960-07-11: Wind1962-05-22: Wind1972-08-05: Wind1973-08-16: Wind1973-07-08: Wind1974-06-21: Wind1979-06-26: Wind1981-06-12: Wind1983-09-05: Wind1983-07-01: Wind1983-07-01: Wind1984-06-17: Wind1984-07-14: Wind1986-11-07: Wind1986-07-28: Wind1986-07-28: Wind1989-05-23: Wind1989-08-13: Wind1990-06-16: Wind1990-09-07: Wind1990-08-24: Wind1990-06-28: Wind1991-07-07: Wind1991-07-07: Wind1997-07-27: Wind1998-05-15: Wind1998-06-23: Wind1998-07-21: Wind1998-07-15: Wind1998-07-21: Wind1998-07-15: Wind2000-07-02: Wind2000-07-25: Wind2000-07-25: Wind2000-07-02: Wind2000-10-13: Wind2001-06-18: Wind2001-08-02: Wind2002-05-05: Wind2002-08-16: Wind2002-08-16: Wind2002-08-16: Wind2005-08-09: Wind2006-08-01: Wind2007-08-21: Wind2007-08-21: Wind2007-08-21: Wind2007-08-21: Wind2007-06-16: Wind2009-07-22: Wind2009-08-02: Wind2010-06-17: Wind2010-08-08: Wind2010-08-08: Wind2010-08-08: Wind2010-07-22: Wind2010-07-17: Wind2011-07-01: Wind2011-06-20: Wind2011-06-20: Wind2012-06-15: Wind2012-06-15: Wind2012-09-04: Wind2013-06-14: Wind2013-06-14: Wind2013-06-14: Wind2013-06-14: Wind2013-04-09: Wind2013-04-09: Wind2014-05-07: Wind2014-06-16: Wind2014-08-31: Wind2015-06-06: Wind2015-06-06: Wind2015-06-22: Wind2015-05-10: Wind2015-08-09: Wind2016-06-14: Wind
Pocahontas 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 29 Sep 2026; NFIP claims as of 8 Sep 2026.

The NCEI record lists 595 events for Pocahontas County, Iowa, between 1950 and 2026; hail account for the largest share.

That is 103.1 events per 100 square miles, in line with the Iowa figure of 124.6, and 841.1 per 10,000 residents against 218.0 statewide.

2 events fall in the 12 months to 30 Jun 2026. NCEI attributes 0 deaths and 2 injuries to events in the county, with property damage estimated at $44M and crop damage at $155M.

FEMA has designated the county in 22 federal disaster declarations since 1953; the most recent is Severe Storms, Flooding, Straight-Line Winds, And Tornadoes (major disaster, 24 Jun 2024).

OpenFEMA lists no National Flood Insurance Program claims in the county.

FEMA's National Risk Index rates the county's overall risk as "Very Low" and its expected annual loss as "Very Low" ($11M a year across 18 hazards).

2events, last 12 monthsto 30 Jun 2026
595events since 19500 deaths, 2 injuries recorded
22disaster declarationslast 24 Jun 2024
0NFIP flood claims$0 paid

Compared with Iowa and the United States

MeasurePocahontas CountyIowaUS
Recorded events since 195059569,6061,977,440
Events per 100 square miles103.1124.656.0
Events per 10,000 residents841.1218.059.6
Events in the last 12 months21,46762,008
Deaths recorded by NCEI022326,435
Property damage (NCEI estimates)$44M$6.5B$575B
NFIP claims per 1,000 residents0.04.68.1
Average paid NFIP claim—$30K$43K
Claims per 100 policies in force, last 10 years0.021.816.1

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: 1
Hail: 1Tornado: 2Wind: 2
Hail: 7Tornado: 2Wind: 5
Hail: 11Tornado: 7Wind: 11
Hail: 14Tornado: 6Flood: 16Wind: 27Winter: 16Cold: 9
Hail: 51Tornado: 3Flood: 23Wind: 42Winter: 32Heat: 1Cold: 1Drought: 2Lightning: 1Other: 3
Hail: 49Tornado: 10Flood: 3Wind: 39Winter: 30Heat: 3Cold: 16Drought: 6Other: 37
Hail: 12Tornado: 14Flood: 1Wind: 9Winter: 15Cold: 6Drought: 31Other: 18
11950s51960s141970s291980s881990s1592000s1932010s1062020s
Recorded events in Pocahontas County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 349 events in the 20 years to 2025 against 209 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

Hail145
Wind135
Winter93
Other58
Tornado45
Flood43
Drought39
Cold32
Heat4
Lightning1
HazardEventsDeathsShare of state's events
■ Hail145—0.9%detail
■ Wind135—0.6%detail
■ Winter93—0.9%detail
■ Other58—1.3%
■ Tornado45—1.3%detail
■ Flood43—0.6%detail
■ Drought39—1.5%
■ Cold32—1.2%
■ Heat4—0.5%
■ Lightning1—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
1 Jul 2012DroughtDrought——$90M——Forecast zone
1 Aug 2013DroughtDrought——$21M——Forecast zone
12 Jun 2010FloodFlood——$20M——County
1 Aug 2003DroughtDrought—$13M———Forecast zone
7 Jun 1984TornadoTornadoF2$2.5M——1County
1 Aug 2001DroughtDrought——$11M——Forecast zone
12 Apr 2022TornadoTornadoEF2$150K——1County
9 Apr 2011TornadoTornadoEF3$10M———County
1 Aug 2012DroughtDrought——$6.0M——Forecast zone
26 Apr 1984TornadoTornadoF2$2.5M———County
7 Jun 1984TornadoTornadoF2$2.5M———County
19 Jun 1990TornadoTornadoF2$2.5M———County
10 Oct 2009Frost/FreezeCold——$2.5M——Forecast zone
9 Apr 2011TornadoTornadoEF4$2.5M———County
11 Apr 2012Frost/FreezeCold——$1.5M——Forecast zone
22 Jul 2010TornadoTornadoEF1$1.0M$10K——County
23 Dec 2009Ice StormWinter—$500K———Forecast zone
22 May 2004FloodFlood—$100K$298K——Forecast zone
10 Nov 1998High WindWind70 mph$300K$5K——Forecast zone
21 Sep 1999Cold/Wind ChillCold——$294K——Forecast zone

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
24 Jun 2024DR-4796Major disasterSevere StormSevere Storms, Flooding, Straight-Line Winds, And TornadoesPublic assistance
23 Feb 2022DR-4642Major disasterSevere StormSevere Storms, Straight-Line Winds, And TornadoesPublic assistance
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
20 Aug 2018DR-4386Major disasterSevere StormSevere Storms, Tornadoes, Straight-Line Winds, And FloodingPublic assistance
24 Jul 2014DR-4184Major disasterFloodSevere Storms, Tornadoes, Straight-Line Winds, And FloodingPublic assistance
5 May 2011DR-1977Major disasterSevere StormSevere Storms, Tornadoes, And Straight-Line WindsPublic assistance
29 Jul 2010DR-1930Major disasterSevere StormSevere Storms, Flooding, And TornadoesPublic assistance
2 Mar 2010DR-1880Major disasterSevere StormSevere Winter StormPublic assistance
25 Feb 2010DR-1877Major disasterSevere StormSevere Winter Storms And SnowstormPublic assistance
27 May 2008DR-1763Major disasterSevere StormSevere Storms, Tornadoes, And FloodingPublic assistance
14 Sep 2007DR-1727Major disasterSevere StormSevere Storms And FloodingPublic assistance
30 Mar 2007EM-3275EmergencySnowstormSnowPublic 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, Public assistance
2 Jul 1998DR-1230Major disasterFloodSevere Storms, Tornadoes And FloodingIndividual assistance
9 Jul 1993DR-996Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
26 Dec 1991DR-928Major disasterSevere Ice StormIce StormPublic 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

OpenFEMA lists no NFIP claims with this county's code. FEMA counts 1 residential flood policies in force.

National Risk Index

Overall riskVery Lowscore 33.0 of 100
Expected annual loss$11MVery Low
Social vulnerabilityRelatively Low
Community resilienceRelatively High
Hazard (NRI)Risk ratingExpected annual loss
DroughtRelatively High$5,371,981
Inland floodingVery Low$2,327,659
TornadoRelatively Low$1,308,081
Cold waveRelatively Low$1,237,540
HailRelatively Low$449,283
Strong windRelatively Low$380,676
LightningRelatively Low$89,063
Winter weatherRelatively Low$82,560
Ice stormRelatively Low$41,661
Heat waveVery Low$31,230
EarthquakeVery Low$12,683
WildfireVery Low$1,447
LandslideVery Low$83

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).

Questions and answers

How often does it hail in Pocahontas County, IA?

NCEI records 145 hail events in Pocahontas County since 1950, in 38 different years; that is about 1.9 recorded events a year. 36 reports were golf-ball size (1.75 in) or larger.

Has Pocahontas County had a tornado?

Yes. NCEI records 45 tornadoes in Pocahontas County since 1950, 11 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Pocahontas County?

24 Jun 2024: Severe Storms, Flooding, Straight-Line Winds, And Tornadoes, a major disaster declaration for severe storm. The county appears in 22 declarations since 1953.

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

OpenFEMA lists no NFIP claims in the county.

Is Pocahontas 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, "Relatively Low" for social vulnerability and "Relatively High" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Pocahontas County compare with the rest of Iowa?

103.1 recorded events per 100 square miles against 124.6 statewide, and 0.0 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 29 Sep 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 30 Sep 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.