County Hazards

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Cass County, Nebraska

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

FIPS 31025 · 27,017 residents (2021) · 557 sq mi · dominant hazard Hail

Hail · 258Tornado · 52Flood · 76Wind · 223Winter · 81
2026-06-11: Hail2026-06-05: Hail2026-06-05: Hail2026-05-17: Hail2026-05-15: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2025-04-17: Hail2024-10-30: Hail2024-06-25: Hail2024-06-12: Hail2024-05-21: Hail2024-05-19: Hail2024-05-19: Hail2023-05-07: Hail2023-05-07: Hail2023-05-07: Hail2023-05-07: Hail2023-05-07: Hail2023-04-19: Hail2023-04-19: Hail2023-04-14: Hail2022-06-11: Hail2022-06-11: Hail2022-06-11: Hail2022-06-07: Hail2022-04-29: Hail2022-04-29: Hail2022-04-12: Hail2021-08-25: Hail2019-09-18: Hail2019-05-05: Hail2018-09-18: Hail2018-06-11: Hail2018-06-11: Hail2018-06-11: Hail2018-06-11: Hail2018-02-19: Hail2017-06-29: Hail2017-06-12: Hail2017-05-16: Hail2017-05-16: Hail2017-04-19: Hail2017-04-15: Hail2017-04-15: Hail2017-04-15: Hail2017-04-15: Hail2017-04-09: Hail2017-03-06: Hail2016-08-16: Hail2016-06-29: Hail2016-06-29: Hail2016-06-29: Hail2016-05-11: Hail2016-05-09: Hail2016-05-09: Hail2016-04-27: Hail2016-04-27: Hail2015-11-11: Hail2015-11-11: Hail2015-09-18: Hail2015-09-18: Hail2015-09-06: Hail2015-09-06: Hail2015-06-10: Hail2014-06-03: Hail2014-06-03: Hail2014-06-03: Hail2014-06-03: Hail2014-06-03: Hail2014-06-03: Hail2014-06-01: Hail2014-05-07: Hail2013-10-30: Hail2013-10-30: Hail2013-10-04: Hail2013-07-21: Hail2013-07-21: Hail2013-05-30: Hail2013-05-30: Hail2013-05-30: Hail2013-05-30: Hail2013-05-19: Hail2013-04-09: Hail2012-08-15: Hail2012-08-08: Hail2012-08-07: Hail2012-06-10: Hail2012-05-19: Hail2012-05-01: Hail2012-03-29: Hail2012-03-29: Hail2012-03-29: Hail2012-03-26: Hail2011-08-18: Hail2011-08-18: Hail2011-08-18: Hail2011-06-27: Hail2011-06-19: Hail2011-06-19: Hail2011-05-21: Hail2011-05-21: Hail2010-08-10: Hail2010-04-23: Hail2010-04-23: Hail2009-08-04: Hail2009-06-22: Hail2009-06-07: Hail2009-05-31: Hail2009-05-31: Hail1952-08-13: Tornado1956-07-28: Tornado1958-08-05: Tornado1958-09-05: Tornado1965-05-08: Tornado1975-05-22: Tornado1983-05-01: Tornado1984-06-12: Tornado1984-06-12: Tornado1985-04-19: Tornado1992-09-05: Tornado1995-05-08: Tornado1995-05-08: Tornado1995-05-08: Tornado1995-05-08: Tornado1995-05-08: Tornado1996-06-23: Tornado1999-05-16: Tornado1999-04-21: Tornado2000-06-13: Tornado2003-11-17: Tornado2003-05-04: Tornado2004-05-22: Tornado2004-05-22: Tornado2004-05-22: Tornado2004-06-13: Tornado2004-06-13: Tornado2004-06-13: Tornado2008-06-11: Tornado2008-06-11: Tornado2009-03-23: Tornado2009-03-23: Tornado2009-03-23: Tornado2010-06-01: Tornado2012-04-14: Tornado2013-10-03: Tornado2016-05-09: Tornado2018-06-11: Tornado2018-06-11: Tornado2018-06-11: Tornado2021-12-15: Tornado2021-12-15: Tornado2021-12-15: Tornado2022-06-14: Tornado2025-04-17: Tornado2025-04-17: Tornado2025-04-17: Tornado2026-05-17: Tornado2026-05-22: Tornado2026-06-11: Tornado2026-06-11: Tornado2026-06-11: Tornado2005-06-27: Flood2007-02-23: Flood2007-05-06: Flood2007-05-06: Flood2007-05-06: Flood2008-05-30: Flood2008-05-30: Flood2008-06-04: Flood2008-06-05: Flood2008-06-01: Flood2008-06-01: Flood2008-06-11: Flood2008-06-05: Flood2008-06-09: Flood2008-06-11: Flood2008-06-11: Flood2008-06-06: Flood2010-03-17: Flood2010-06-11: Flood2010-08-01: Flood2010-07-01: Flood2010-06-21: Flood2010-06-21: Flood2010-06-21: Flood2010-06-20: Flood2010-06-11: Flood2010-09-01: Flood2010-09-02: Flood2010-09-02: Flood2011-02-17: Flood2011-05-01: Flood2011-04-21: Flood2011-08-01: Flood2011-09-01: Flood2011-07-01: Flood2011-06-01: Flood2012-04-14: Flood2014-06-18: Flood2015-05-07: Flood2016-05-26: Flood2016-05-01: Flood2016-05-11: Flood2016-05-26: Flood2018-09-04: Flood2018-09-04: Flood2018-09-04: Flood2018-06-11: Flood2019-03-14: Flood2019-03-14: Flood2019-03-15: Flood2019-03-13: Flood2019-03-13: Flood2020-07-29: Flood2020-07-29: Flood2021-06-24: Flood2021-06-24: Flood2024-07-01: Flood2024-07-02: Flood2024-07-02: Flood2024-06-24: Flood2026-06-05: Flood2026-06-11: Wind2026-06-11: Wind2026-06-11: Wind2026-06-11: Wind2026-06-11: Wind2026-06-11: Wind2026-06-11: Wind2026-06-11: Wind2026-06-05: Wind2026-06-05: Wind2026-05-17: Wind2026-05-17: Wind2025-07-29: Wind2025-07-15: Wind2025-04-17: Wind2025-03-14: Wind2025-03-14: Wind2024-07-31: Wind2024-07-31: Wind2024-07-31: Wind2024-07-31: Wind2024-07-31: Wind2024-07-31: Wind2024-06-15: Wind2024-06-15: Wind2024-05-24: Wind2024-05-06: Wind2024-05-06: Wind2023-07-12: Wind2023-07-12: Wind2023-07-12: Wind2023-07-04: Wind2023-07-04: Wind2023-07-04: Wind2023-07-04: Wind2023-07-04: Wind2023-07-04: Wind2023-06-29: Wind2023-06-29: Wind2023-04-18: Wind2023-04-18: Wind2022-06-14: Wind2022-06-14: Wind2022-06-14: Wind2022-06-14: Wind2022-06-14: Wind2022-06-14: Wind2022-06-14: Wind2022-04-29: Wind2022-04-29: Wind2022-03-29: Wind2021-12-15: Wind2021-12-15: Wind2021-08-31: Wind2021-08-25: Wind2021-07-09: Wind2021-07-09: Wind2021-07-09: Wind2021-06-24: Wind2021-06-24: Wind2021-06-24: Wind2020-07-09: Wind2020-07-01: Wind2020-05-24: Wind2019-05-28: Wind2018-09-01: Wind2018-06-11: Wind2018-06-11: Wind2018-04-13: Wind2017-06-16: Wind2016-06-29: Wind2016-04-27: Wind2015-09-06: Wind2015-07-24: Wind2015-04-01: Wind2014-06-01: Wind2013-10-03: Wind2013-07-21: Wind2013-05-30: Wind2013-05-19: Wind2012-08-08: Wind2012-08-07: Wind2012-04-14: Wind2012-04-14: Wind2012-04-14: Wind2011-08-18: Wind2011-08-18: Wind2011-07-23: Wind2011-06-20: Wind2010-09-13: Wind2010-09-13: Wind2010-09-13: Wind2010-09-13: Wind2010-09-13: Wind2010-08-10: Wind2010-08-10: Wind2010-07-20: Wind2010-07-14: Wind2010-07-14: Wind2010-04-05: Wind2009-03-23: Wind2008-07-15: Wind2008-07-08: Wind2008-06-19: Wind2008-06-19: Wind2008-06-11: Wind2008-06-04: Wind2008-06-04: Wind
Cass County within Nebraska. 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.

Cass County, Nebraska, has 781 weather events in the NCEI Storm Events record since 1950, most of them hail.

That is 140.1 events per 100 square miles, above the Nebraska figure of 83.3, and 289.1 per 10,000 residents against 325.9 statewide.

31 events fall in the 12 months to 30 Jun 2026. NCEI attributes 4 deaths and 21 injuries to events in the county, with property damage estimated at $27M and crop damage at $1.6M.

FEMA has designated the county in 27 federal disaster declarations since 1953; the most recent is Severe Winter Storm And Straight-Line Winds (major disaster, 21 May 2025).

National Flood Insurance Program policyholders in the county filed 410 claims since 1978, of which 336 were paid, totalling $8.6M (about $26K per paid claim). FEMA counts 403 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 "Relatively Low" ($15M a year across 18 hazards).

31events, last 12 monthsto 30 Jun 2026
781events since 19504 deaths, 21 injuries recorded
27disaster declarationslast 21 May 2025
410NFIP flood claims$8.6M paid

Compared with Nebraska and the United States

MeasureCass CountyNebraskaUS
Recorded events since 195078164,0021,977,440
Events per 100 square miles140.183.356.0
Events per 10,000 residents289.1325.959.6
Events in the last 12 months311,59062,008
Deaths recorded by NCEI418226,435
Property damage (NCEI estimates)$27M$5.1B$575B
NFIP claims per 1,000 residents15.23.18.1
Average paid NFIP claim$26K$22K$43K
Claims per 100 policies in force, last 10 years22.823.816.1

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: 4
Hail: 1Tornado: 1Wind: 3
Hail: 10Tornado: 1Wind: 7
Hail: 12Tornado: 4Wind: 22
Hail: 27Tornado: 9Flood: 13Wind: 28Winter: 10Heat: 1Cold: 9Drought: 1Lightning: 2Other: 4
Hail: 93Tornado: 14Flood: 19Wind: 52Winter: 29Heat: 4Cold: 11Other: 2
Hail: 75Tornado: 7Flood: 35Wind: 39Winter: 30Heat: 16Cold: 9Drought: 11Other: 6
Hail: 40Tornado: 12Flood: 9Wind: 72Winter: 12Heat: 8Cold: 4Other: 3
41950s51960s181970s381980s1041990s2242000s2282010s1602020s
Recorded events in Cass County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 469 events in the 20 years to 2025 against 235 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

Hail258
Wind223
Winter81
Flood76
Tornado52
Cold33
Heat29
Other15
Drought12
Lightning2
HazardEventsDeathsShare of state's events
■ Hail258—1.0%detail
■ Wind22311.3%detail
■ Winter8131.0%detail
■ Flood76—3.2%detail
■ Tornado52—1.5%detail
■ Cold33—1.5%
■ Heat29—3.9%
■ Other15—1.4%
■ Drought12—0.3%
■ Lightning2—1.0%

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
14 Feb 2010Winter WeatherWinter———2—Forecast zone
4 Jul 1994Thunderstorm WindWind0 mph——11County
31 Dec 2006Winter WeatherWinter———1—Forecast zone
18 Jul 1985Thunderstorm WindWind0 mph———5County
23 Mar 2009TornadoTornadoEF1———5County
23 Mar 2009TornadoTornadoEF1———3County
16 Jun 2017Thunderstorm WindWind81 mph———3County
9 Jan 2011Winter WeatherWinter————2Forecast zone
13 Mar 2019FloodFlood—$15M———County
2 Jun 1989Thunderstorm WindWind60 mph———1County
14 Jun 2022Thunderstorm WindWind81 mph———1County
25 Oct 1997Heavy SnowWinter—$3.0M$200K——Forecast zone
12 Jun 1984TornadoTornadoF2$2.5M———County
28 Jul 1996HailHail1.50 in$1.0M$250K——County
24 Jul 1995HailHail1.75 in$110K$1.0M——County
23 Mar 2009TornadoTornadoEF1$1.0M———County
17 Mar 2010FloodFlood—$625K———County
4 Jul 1994Thunderstorm WindWind81 mph$500K———County
10 Aug 2006Thunderstorm WindWind98 mph$500K———County
21 Jun 2010FloodFlood—$500K———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
21 May 2025DR-4868Major disasterWinter StormSevere Winter Storm And Straight-Line WindsPublic assistance
21 Oct 2024DR-4838Major disasterSevere StormSevere Storms, Straight-Line Winds, Tornadoes, And FloodingPublic assistance
9 Apr 2023FM-5462Fire management assistanceFireWaconda-Beaver Lake Fire ComplexPublic assistance
23 Feb 2022DR-4641Major disasterSevere StormSevere Storms, Straight-Line Winds, And TornadoesPublic assistance
6 Sep 2021DR-4616Major disasterSevere StormSevere Storms And Straight-Line WindsPublic assistance
4 Apr 2020DR-4521Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3483EmergencyBiologicalCovid-19Public assistance
21 Mar 2019DR-4420Major disasterFloodSevere Winter Storm, Straight-Line Winds, And FloodingIndividual assistance, Public assistance
1 Aug 2017DR-4325Major disasterSevere StormSevere Storms, Tornadoes, And Straight-Line WindsPublic assistance
25 Jun 2015DR-4225Major disasterSevere StormSevere Storms, Tornadoes, Straight-Line Winds, And FloodingPublic assistance
28 Jul 2014DR-4185Major disasterSevere StormSevere Storms, Tornadoes, Straight-Line Winds, And FloodingPublic assistance
12 Aug 2011DR-4013Major disasterFloodFloodingIndividual assistance, Public assistance
18 Jun 2011EM-3323EmergencyFloodFloodingPublic assistance
21 Oct 2010DR-1945Major disasterSevere StormSevere Storms, Flooding, Tornado, And Straight-LinPublic assistance
15 Jul 2010DR-1924Major disasterSevere StormSevere Storms And FloodingPublic assistance
21 Apr 2010DR-1902Major disasterFloodSevere Storms, Ice Jams, And FloodingPublic assistance
25 Feb 2010DR-1878Major disasterSevere StormSevere Winter Storms And SnowstormPublic assistance
20 Jun 2008DR-1770Major disasterSevere StormSevere Storms, Tornadoes, And FloodingPublic assistance
6 Jun 2007DR-1706Major disasterSevere StormSevere Storms, Flooding, And TornadoesPublic assistance
13 Sep 2005EM-3245EmergencyHurricaneHurricane Katrina EvacueesPublic assistance
25 May 2004DR-1517Major disasterSevere StormSevere Storms, Tornadoes And FloodingIndividual assistance, Public assistance
1 Nov 1997DR-1190Major disasterSevere StormSevere Snow Storms, Rain, And Strong WindsPublic assistance
19 Jul 1993DR-998Major disasterFloodSevere Storms And FloodingIndividual assistance, Public assistance
3 Jul 1984DR-716Major disasterTornadoTornadoes & FloodingIndividual assistance, Public assistance
24 Mar 1978DR-552Major disasterFloodStorms, Ice Jams, Snowmelt & FloodingIndividual assistance, Public assistance
20 Oct 1973DR-406Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
18 Jul 1967DR-228Major disasterFloodSevere 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 Cass County, 1978 to 2026 (hover for the amount paid).
Claims since 1978410
Paid claims336
Total paid$8.6M
Average paid claim$26K
Repetitive-loss properties454 severe
Residential policies in force4033.0% of 13,264 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202473$139,620$46,540
202210$0—
20198478$5,619,478$72,045
201531$3,438$3,438
201311$6,137$6,137
201220$0—
201111998$1,316,457$13,433
20102720$297,820$14,891
200896$21,780$3,630
200422$28,382$14,191
200221$1,283$1,283
199933$32,936$10,979
199622$6,702$3,351
199410$0—
19938875$816,179$10,882
199110$0—
19901413$81,206$6,247
198910$0—
198810$0—
198766$23,697$3,949
19843223$173,605$7,548
198222$52,229$26,115
197911$400$400
197811$262$262

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 31.0 of 100
Expected annual loss$15MRelatively Low
Social vulnerabilityVery Low
Community resilienceRelatively High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Low$6,590,150
TornadoRelatively Low$3,022,776
HailRelatively Moderate$1,774,932
Cold waveRelatively Low$903,596
Strong windRelatively Low$830,887
DroughtRelatively Moderate$754,267
Heat waveRelatively Low$666,798
WildfireRelatively Low$367,385
Ice stormRelatively Moderate$284,292
LightningVery Low$114,537
Winter weatherRelatively Low$43,275
EarthquakeVery Low$18,012
LandslideRelatively Low$10,405

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 Cass County, NE?

NCEI records 258 hail events in Cass County since 1950, in 48 different years; that is about 3.4 recorded events a year. 73 reports were golf-ball size (1.75 in) or larger.

Has Cass County had a tornado?

Yes. NCEI records 52 tornadoes in Cass County since 1950, 7 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Cass County?

21 May 2025: Severe Winter Storm And Straight-Line Winds, a major disaster declaration for winter storm. The county appears in 27 declarations since 1953.

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

410 NFIP claims since 1978, 336 of them paid, for $8.6M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

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

How does Cass County compare with the rest of Nebraska?

140.1 recorded events per 100 square miles against 83.3 statewide, and 15.2 NFIP claims per 1,000 residents against 3.1. 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.