County Hazards

States › Oklahoma › Ellis County

Ellis County, Oklahoma

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

FIPS 40045 · 3,762 residents (2021) · 1,231 sq mi · dominant hazard Hail

Hail · 424Tornado · 82Flood · 15Wind · 280Winter · 58
2025-09-08: Hail2025-06-17: Hail2025-05-28: Hail2025-05-24: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2025-05-18: Hail2024-05-28: Hail2024-05-28: Hail2024-05-25: Hail2024-05-25: Hail2024-05-25: Hail2024-05-25: Hail2024-05-15: Hail2023-08-13: Hail2023-08-13: Hail2023-08-13: Hail2023-06-15: Hail2022-09-17: Hail2022-09-17: Hail2022-05-31: Hail2021-08-21: Hail2021-05-05: Hail2020-06-22: Hail2020-06-22: Hail2020-05-14: Hail2020-05-14: Hail2020-04-22: Hail2019-05-07: Hail2018-05-30: Hail2018-05-30: Hail2018-05-30: Hail2018-05-30: Hail2018-05-17: Hail2018-05-17: Hail2017-06-15: Hail2017-06-15: Hail2017-06-15: Hail2017-06-13: Hail2017-06-13: Hail2017-06-13: Hail2017-06-13: Hail2017-06-13: Hail2017-05-27: Hail2017-05-18: Hail2016-06-26: Hail2016-05-29: Hail2016-04-26: Hail2015-11-16: Hail2015-04-08: Hail2015-04-01: Hail2014-10-09: Hail2014-06-11: Hail2014-06-01: Hail2013-07-29: Hail2013-05-08: Hail2013-04-26: Hail2013-04-22: Hail2013-04-22: Hail2013-04-22: Hail2013-04-22: Hail2012-04-14: Hail2012-04-14: Hail2012-04-14: Hail2012-04-14: Hail2012-04-02: Hail2012-04-02: Hail2012-04-02: Hail2012-04-02: Hail2012-03-29: Hail2012-03-29: Hail2012-03-29: Hail2012-03-29: Hail2011-06-11: Hail2010-06-13: Hail2010-05-24: Hail2010-05-12: Hail2010-05-12: Hail2010-05-11: Hail2010-05-11: Hail2010-05-11: Hail2009-04-26: Hail2009-04-26: Hail2009-04-26: Hail2009-04-26: Hail2008-06-14: Hail2008-06-14: Hail2008-06-14: Hail2008-06-14: Hail2008-06-08: Hail2008-06-08: Hail2008-06-08: Hail2008-06-08: Hail2008-06-08: Hail2008-06-08: Hail2008-06-08: Hail2008-06-08: Hail2008-06-08: Hail2008-05-23: Hail2008-05-23: Hail2008-05-23: Hail2008-05-23: Hail2008-05-23: Hail2008-05-23: Hail2008-05-22: Hail2008-05-22: Hail2008-05-22: Hail2007-09-26: Hail2007-06-19: Hail2007-06-13: Hail1950-05-07: Tornado1951-07-27: Tornado1954-10-25: Tornado1955-05-25: Tornado1955-06-03: Tornado1955-06-22: Tornado1955-06-15: Tornado1955-06-16: Tornado1956-06-23: Tornado1957-05-16: Tornado1957-05-29: Tornado1957-04-20: Tornado1958-06-21: Tornado1960-03-28: Tornado1961-05-04: Tornado1962-06-05: Tornado1962-06-05: Tornado1962-06-05: Tornado1962-06-05: Tornado1962-06-05: Tornado1962-06-05: Tornado1964-08-17: Tornado1964-05-10: Tornado1965-05-07: Tornado1965-05-13: Tornado1965-05-25: Tornado1965-05-25: Tornado1966-04-17: Tornado1966-04-17: Tornado1966-06-07: Tornado1967-06-10: Tornado1967-06-10: Tornado1967-06-10: Tornado1968-06-09: Tornado1969-06-23: Tornado1973-11-19: Tornado1977-03-02: Tornado1978-04-30: Tornado1981-03-04: Tornado1982-05-11: Tornado1982-05-15: Tornado1982-05-30: Tornado1983-05-13: Tornado1983-05-27: Tornado1987-03-22: Tornado1987-03-22: Tornado1987-03-22: Tornado1990-04-24: Tornado1992-04-09: Tornado1992-04-09: Tornado1995-06-08: Tornado1999-06-18: Tornado2002-05-05: Tornado2002-06-12: Tornado2007-05-04: Tornado2007-05-04: Tornado2007-05-05: Tornado2007-05-05: Tornado2007-05-05: Tornado2007-05-05: Tornado2007-05-05: Tornado2009-04-26: Tornado2010-05-19: Tornado2010-05-19: Tornado2011-06-11: Tornado2012-04-14: Tornado2015-11-16: Tornado2015-11-16: Tornado2019-04-17: Tornado2019-04-17: Tornado2019-05-23: Tornado2023-06-15: Tornado2025-05-18: Tornado2025-05-18: Tornado2025-05-18: Tornado2025-05-18: Tornado2025-06-17: Tornado2025-06-17: Tornado2005-06-12: Flood2005-06-12: Flood2005-06-12: Flood2005-06-12: Flood2009-04-26: Flood2009-04-26: Flood2025-09-08: Flood2026-06-25: Wind2026-06-23: Wind2026-06-21: Wind2025-09-22: Wind2025-09-08: Wind2025-09-01: Wind2025-09-01: Wind2025-09-01: Wind2025-08-18: Wind2025-07-08: Wind2025-07-08: Wind2025-07-08: Wind2025-06-17: Wind2025-06-06: Wind2025-06-06: Wind2025-05-28: Wind2025-05-18: Wind2024-07-16: Wind2023-07-09: Wind2023-07-07: Wind2023-07-06: Wind2023-06-17: Wind2023-06-15: Wind2023-05-31: Wind2023-05-31: Wind2022-05-18: Wind2022-05-18: Wind2021-03-16: Wind2021-03-16: Wind2020-11-24: Wind2020-08-10: Wind2020-08-10: Wind2019-06-23: Wind2018-07-26: Wind2018-06-24: Wind2018-06-24: Wind2018-06-24: Wind2017-08-05: Wind2017-07-03: Wind2017-05-18: Wind2017-05-18: Wind2016-08-07: Wind2016-07-15: Wind2016-04-26: Wind2015-11-16: Wind2015-11-16: Wind2015-07-03: Wind2015-06-07: Wind2015-06-07: Wind2015-04-01: Wind2014-10-12: Wind2014-08-28: Wind2014-06-24: Wind2014-06-06: Wind2013-07-29: Wind2013-07-29: Wind2013-07-29: Wind2013-06-03: Wind2012-09-04: Wind2012-09-04: Wind2012-05-25: Wind2012-05-25: Wind2012-05-25: Wind2012-03-18: Wind2011-08-12: Wind2011-08-12: Wind2011-06-28: Wind2010-07-25: Wind2010-07-16: Wind2010-05-24: Wind2010-05-24: Wind2009-08-18: Wind2009-06-06: Wind2008-10-22: Wind2007-06-19: Wind2006-09-10: Wind2006-06-18: Wind2006-06-18: Wind2006-06-18: Wind2006-06-04: Wind2005-08-24: Wind2005-07-01: Wind
Ellis County within Oklahoma. 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 1,021 events for Ellis County, Oklahoma, between 1950 and 2026; hail account for the largest share.

That is 82.9 events per 100 square miles, below the Oklahoma figure of 120.9, and 2,714.0 per 10,000 residents against 208.0 statewide.

21 events fall in the 12 months to 30 Jun 2026. NCEI attributes 0 deaths and 8 injuries to events in the county, with property damage estimated at $35M and crop damage at $8.4M.

FEMA has designated the county in 29 federal disaster declarations since 1953; the most recent is 840 Road Fire (fire management assistance, 14 Mar 2025).

National Flood Insurance Program policyholders in the county filed 3 claims since 1978, of which 3 were paid, totalling $10K (about $3K per paid claim).

FEMA's National Risk Index rates the county's overall risk as "Very Low" and its expected annual loss as "Very Low" ($5.7M 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.

21events, last 12 monthsto 30 Jun 2026
1,021events since 19500 deaths, 8 injuries recorded
29disaster declarationslast 14 Mar 2025
3NFIP flood claims$10K paid

Compared with Oklahoma and the United States

MeasureEllis CountyOklahomaUS
Recorded events since 19501,02182,9191,977,440
Events per 100 square miles82.9120.956.0
Events per 10,000 residents2,714.0208.059.6
Events in the last 12 months212,57062,008
Deaths recorded by NCEI070526,435
Property damage (NCEI estimates)$35M$9.6B$575B
NFIP claims per 1,000 residents0.83.38.1
Average paid NFIP claim$3K$24K$43K
Claims per 100 policies in force, last 10 years—17.016.1

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: 9Tornado: 13Wind: 7
Hail: 16Tornado: 22Wind: 17
Hail: 11Tornado: 3Wind: 19
Hail: 71Tornado: 9Wind: 22
Hail: 116Tornado: 5Flood: 5Wind: 60Winter: 9Cold: 2Lightning: 1Fog: 1
Hail: 110Tornado: 14Flood: 9Wind: 53Winter: 25Heat: 3Drought: 21Fog: 1Other: 3
Hail: 53Tornado: 9Wind: 53Winter: 19Drought: 63Wildfire: 1
Hail: 38Tornado: 7Flood: 1Wind: 49Winter: 5Heat: 21Cold: 8Drought: 33Wildfire: 4
291950s551960s331970s1021980s1991990s2392000s1982010s1662020s
Recorded events in Ellis County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtWildfireLightningFogOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 465 events in the 20 years to 2025 against 400 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

Hail424
Wind280
Drought117
Tornado82
Winter58
Heat24
Flood15
Cold10
Wildfire5
Other3
Fog2
Lightning1
HazardEventsDeathsShare of state's events
■ Hail424—1.3%detail
■ Wind280—1.1%detail
■ Drought117—1.8%
■ Tornado82—1.6%detail
■ Winter58—1.5%detail
■ Heat24—0.5%
■ Flood15—0.3%detail
■ Cold10—1.6%
■ Wildfire5—0.8%
■ Other3—1.3%
■ Fog2—0.6%
■ 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
24 Apr 1990TornadoTornadoF2$2.5M——5County
30 Jan 2002Ice StormWinter—$25M———Forecast zone
5 May 2007TornadoTornadoEF2$612K——1County
26 Sep 2007HailHail1.75 in$15K——1County
27 Mar 2009BlizzardWinter—$15K——1Forecast zone
1 Aug 2000DroughtDrought——$8.3M——Forecast zone
27 Feb 2024WildfireWildfire—$1.3M———Forecast zone
1 Mar 2024WildfireWildfire—$1.3M———Forecast zone
14 Jan 2017Ice StormWinter—$657K———Forecast zone
25 May 1994HailHail2.50 in$500K———County
24 Jul 1996Thunderstorm WindWind70 mph$300K———County
15 Jun 1955TornadoTornadoF2$250K———County
21 Jun 1958TornadoTornadoF3$250K———County
22 Mar 1987TornadoTornadoF2$250K———County
23 May 2019TornadoTornadoEF3$150K———County
27 May 2001Thunderstorm WindWind70 mph$125K———County
4 May 2007TornadoTornadoEF1$110K———County
11 Jun 2011TornadoTornadoEF0$100K———County
18 May 2025TornadoTornadoEF3$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
14 Mar 2025FM-5557Fire management assistanceFire840 Road FirePublic assistance
27 Feb 2024FM-5489Fire management assistanceFireCatesby FirePublic assistance
24 Feb 2021DR-4587Major disasterSevere Ice StormSevere Winter StormsPublic assistance
17 Feb 2021EM-3555EmergencySevere Ice StormSevere Winter StormPublic assistance
21 Dec 2020DR-4575Major disasterSevere Ice StormSevere Winter StormPublic assistance
5 Apr 2020DR-4530Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3462EmergencyBiologicalCovid-19Public assistance
26 Nov 2019FM-5305Fire management assistanceFireGauge FirePublic assistance
1 Jun 2019DR-4438Major disasterSevere StormSevere Storms, Straight-Line Winds, Tornadoes, And FloodingPublic assistance
7 Mar 2017FM-5177Fire management assistanceFireNw Oklahoma Wildfire Outbreak ComplexPublic assistance
10 Feb 2017DR-4299Major disasterSevere StormSevere Winter StormPublic assistance
29 Dec 2015DR-4247Major disasterSevere Ice StormSevere Winter Storms And FloodingPublic assistance
8 Apr 2013DR-4109Major disasterSevere StormSevere Winter Storm And SnowstormPublic assistance
2 Feb 2011EM-3316EmergencySevere StormSevere Winter StormPublic assistance
5 Mar 2010DR-1883Major disasterSevere Ice StormSevere Winter StormPublic assistance
30 Jan 2010EM-3308EmergencySevere StormSevere Winter StormPublic assistance
23 Jun 2009EM-3305EmergencySnowstormRecord Snow And Near Record SnowPublic assistance
9 Oct 2008DR-1803Major disasterSevere StormSevere Storms, Tornadoes, And FloodingPublic assistance
9 Jul 2008DR-1775Major disasterSevere StormSevere Storms And FloodingPublic assistance
10 Dec 2007EM-3280EmergencySevere Ice StormSevere Winter StormsPublic assistance
24 Aug 2007DR-1718Major disasterSevere StormSevere Storms, Tornadoes, And FloodingPublic assistance
7 Jun 2007DR-1707Major disasterSevere StormSevere Storms, Tornadoes And FloodingPublic assistance
14 Jan 2007EM-3272EmergencySevere Ice StormSevere Winter Storms And FloodingPublic assistance
10 Jan 2006DR-1623Major disasterFireExtreme Wildfire ThreatPublic assistance
5 Sep 2005EM-3219EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
1 Feb 2002DR-1401Major disasterSevere Ice StormSevere Winter Ice StormIndividual assistance, Public assistance
29 Jun 2001DR-1384Major disasterSevere StormSevere Storms, Flooding, And TornadoesPublic assistance
26 Jun 1995DR-1058Major disasterTornadoTornadoes, Severe Storms And FloodingPublic assistance
18 May 1990DR-866Major disasterSevere StormSevere Storms, Tornadoes & FloodingIndividual 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 Ellis County, 1978 to 2026 (hover for the amount paid).
Claims since 19783
Paid claims3
Total paid$10K
Average paid claim$3K
Repetitive-loss properties0
Residential policies in force00.0% of 2,690 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
201411$2,254$2,254
200911$1,514$1,514
199611$6,397$6,397

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 24.8 of 100
Expected annual loss$5.7MVery Low
Social vulnerabilityVery High
Community resilienceRelatively Low
Hazard (NRI)Risk ratingExpected annual loss
DroughtRelatively High$1,495,186
Ice stormRelatively High$1,066,631
Cold waveRelatively Low$719,247
Inland floodingVery Low$669,601
TornadoRelatively Low$540,282
WildfireRelatively Low$480,618
HailRelatively Low$289,219
Strong windRelatively Low$279,574
Heat waveVery Low$85,353
Winter weatherRelatively Low$51,938
EarthquakeVery Low$24,233
LightningVery Low$16,228
HurricaneVery Low$6,308
LandslideVery Low$373

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 miles0
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Erin200768 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.

Questions and answers

How often does it hail in Ellis County, OK?

NCEI records 424 hail events in Ellis County since 1950, in 64 different years; that is about 5.5 recorded events a year. 130 reports were golf-ball size (1.75 in) or larger.

Has Ellis County had a tornado?

Yes. NCEI records 82 tornadoes in Ellis County since 1950, 17 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Ellis County?

14 Mar 2025: 840 Road Fire, a fire management assistance declaration for fire. The county appears in 29 declarations since 1953.

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

3 NFIP claims since 1978, 3 of them paid, for $10K in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

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

How does Ellis County compare with the rest of Oklahoma?

82.9 recorded events per 100 square miles against 120.9 statewide, and 0.8 NFIP claims per 1,000 residents against 3.3. 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.