County Hazards

States › Arkansas › Union County

Union County, Arkansas

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

FIPS 05139 · 38,340 residents (2021) · 1,039 sq mi · dominant hazard Wind

Hail · 172Tornado · 45Flood · 67Wind · 234Winter · 41
1958-05-04: Hail1964-01-08: Hail1972-04-03: Hail1972-03-28: Hail1972-03-28: Hail1973-11-24: Hail1974-06-08: Hail1976-05-26: Hail1977-07-24: Hail1978-05-11: Hail1981-05-18: Hail1981-05-18: Hail1981-05-18: Hail1981-05-18: Hail1983-04-05: Hail1984-04-18: Hail1984-04-08: Hail1984-03-27: Hail1987-07-06: Hail1987-07-06: Hail1988-05-09: Hail1988-11-19: Hail1990-05-16: Hail1991-04-27: Hail1991-04-28: Hail1991-04-13: Hail1991-04-19: Hail1991-04-26: Hail1991-04-19: Hail1992-11-03: Hail1992-11-03: Hail1996-04-20: Hail1996-03-30: Hail1996-03-30: Hail1996-03-30: Hail1996-04-14: Hail1996-03-30: Hail1996-03-30: Hail1997-01-04: Hail1997-05-02: Hail1999-04-03: Hail1999-04-03: Hail1999-04-03: Hail1999-04-03: Hail1999-08-24: Hail1999-05-05: Hail2000-03-10: Hail2000-03-10: Hail2000-03-18: Hail2001-05-06: Hail2002-12-19: Hail2002-03-25: Hail2003-04-24: Hail2003-04-24: Hail2003-04-06: Hail2003-05-05: Hail2003-05-02: Hail2003-07-17: Hail2004-04-07: Hail2004-04-07: Hail2004-04-29: Hail2006-04-07: Hail2006-05-14: Hail2007-05-15: Hail2007-05-09: Hail2008-02-25: Hail2008-02-25: Hail2008-02-05: Hail2008-02-05: Hail2008-03-14: Hail2008-03-14: Hail2008-03-14: Hail2008-03-14: Hail2008-03-14: Hail2008-03-14: Hail2008-03-14: Hail2008-05-10: Hail2008-05-10: Hail2008-05-02: Hail2009-04-12: Hail2009-04-09: Hail2009-04-09: Hail2009-04-09: Hail2009-04-09: Hail2009-04-09: Hail2010-03-10: Hail2010-04-24: Hail2011-03-08: Hail2011-04-25: Hail2012-02-01: Hail2012-04-03: Hail2012-04-05: Hail2013-05-16: Hail2013-05-17: Hail2013-05-21: Hail2013-04-27: Hail2013-05-17: Hail2014-04-24: Hail2014-04-24: Hail1950-02-12: Tornado1961-09-12: Tornado1961-11-02: Tornado1965-09-21: Tornado1972-03-28: Tornado1972-03-28: Tornado1973-04-24: Tornado1975-03-28: Tornado1978-12-03: Tornado1978-12-03: Tornado1979-04-08: Tornado1981-05-18: Tornado1981-05-18: Tornado1989-07-06: Tornado1990-05-16: Tornado1991-04-27: Tornado1991-04-13: Tornado1992-03-09: Tornado1996-03-30: Tornado1999-01-22: Tornado2001-11-26: Tornado2002-12-18: Tornado2002-12-18: Tornado2003-04-24: Tornado2003-04-24: Tornado2004-04-29: Tornado2005-01-12: Tornado2007-02-24: Tornado2007-02-24: Tornado2008-02-05: Tornado2008-09-13: Tornado2008-09-13: Tornado2009-10-29: Tornado2009-10-29: Tornado2009-10-29: Tornado2011-04-04: Tornado2011-04-26: Tornado2017-01-21: Tornado2017-01-21: Tornado2018-04-14: Tornado2018-04-14: Tornado2021-06-07: Tornado2023-01-02: Tornado2023-01-18: Tornado2023-06-18: Tornado2008-04-04: Flood2008-08-19: Flood2009-05-08: Flood2009-05-11: Flood2009-05-11: Flood2009-05-11: Flood2009-05-11: Flood2009-06-03: Flood2009-10-13: Flood2009-12-24: Flood2009-09-17: Flood2009-09-17: Flood2009-10-29: Flood2009-10-29: Flood2009-10-29: Flood2009-10-29: Flood2009-10-29: Flood2009-10-12: Flood2009-10-13: Flood2009-10-30: Flood2009-11-01: Flood2010-08-22: Flood2012-03-21: Flood2013-06-01: Flood2015-12-25: Flood2016-03-09: Flood2016-03-08: Flood2019-04-07: Flood2019-04-07: Flood2019-04-07: Flood2019-04-13: Flood2019-04-13: Flood2020-02-12: Flood2021-05-09: Flood2021-05-09: Flood2022-07-03: Flood2022-07-03: Flood2022-07-03: Flood2022-07-03: Flood2022-07-03: Flood2022-07-03: Flood2022-07-03: Flood2023-01-02: Flood2023-01-02: Flood2023-01-02: Flood2023-05-11: Flood2023-07-12: Flood2023-07-12: Flood2024-03-15: Flood2024-03-15: Flood2024-04-09: Flood2025-04-26: Flood2025-04-05: Flood2025-09-24: Flood2025-09-24: Flood2026-06-23: Wind2026-06-23: Wind2026-06-23: Wind2026-03-15: Wind2026-03-15: Wind2025-05-17: Wind2025-04-26: Wind2025-03-04: Wind2024-06-03: Wind2024-06-03: Wind2023-07-16: Wind2023-07-16: Wind2023-07-15: Wind2023-07-05: Wind2023-06-18: Wind2023-06-14: Wind2023-05-08: Wind2023-01-02: Wind2022-10-12: Wind2022-06-10: Wind2022-06-10: Wind2022-04-05: Wind2021-07-16: Wind2021-06-07: Wind2021-05-09: Wind2021-05-04: Wind2021-04-09: Wind2020-04-28: Wind2020-04-12: Wind2020-04-12: Wind2019-06-28: Wind2019-06-19: Wind2019-04-13: Wind2018-07-06: Wind2018-06-22: Wind2018-06-22: Wind2018-06-22: Wind2018-04-14: Wind2018-04-14: Wind2018-04-14: Wind2018-04-03: Wind2017-04-29: Wind2017-04-02: Wind2017-01-21: Wind2017-01-16: Wind2016-07-14: Wind2016-07-14: Wind2016-07-14: Wind2016-07-14: Wind2016-05-02: Wind2016-05-02: Wind2016-05-02: Wind2016-05-02: Wind2016-05-01: Wind2016-05-01: Wind2016-03-24: Wind2015-12-13: Wind2015-05-25: Wind2015-05-24: Wind2015-04-24: Wind2015-04-24: Wind2015-04-22: Wind2015-04-09: Wind2014-07-23: Wind2014-07-23: Wind2014-06-28: Wind2014-06-08: Wind2014-06-08: Wind2014-04-03: Wind2014-03-28: Wind2013-09-11: Wind2013-07-23: Wind2013-07-23: Wind2013-06-01: Wind2013-06-01: Wind2013-05-21: Wind2013-05-16: Wind2013-04-18: Wind2013-03-31: Wind2013-01-29: Wind2012-12-20: Wind2012-12-20: Wind2012-12-20: Wind2012-10-17: Wind2012-08-09: Wind2012-07-28: Wind2012-07-28: Wind2012-07-28: Wind2012-07-05: Wind2012-06-12: Wind2012-04-03: Wind2012-04-03: Wind2012-04-03: Wind2012-04-02: Wind2012-04-02: Wind2011-08-20: Wind2011-08-20: Wind2011-07-25: Wind2011-07-04: Wind2011-05-25: Wind2011-04-26: Wind2011-04-25: Wind2011-04-15: Wind2011-02-24: Wind2010-08-22: Wind2010-08-22: Wind2010-08-22: Wind2010-05-26: Wind2010-05-01: Wind2009-10-29: Wind2009-10-29: Wind2009-10-09: Wind2009-10-09: Wind2009-07-16: Wind2009-06-10: Wind2009-06-10: Wind2009-06-10: Wind2009-06-03: Wind
Union County within Arkansas. 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.

Union County, Arkansas, has 694 weather events in the NCEI Storm Events record since 1950, most of them damaging wind.

That is 66.8 events per 100 square miles, below the Arkansas figure of 94.2, and 181.0 per 10,000 residents against 161.8 statewide.

25 events fall in the 12 months to 30 Jun 2026. NCEI attributes 3 deaths and 35 injuries to events in the county, with property damage estimated at $83M.

FEMA has designated the county in 21 federal disaster declarations since 1953; the most recent is Pine Tree Road Fire (fire management assistance, 21 Aug 2026).

National Flood Insurance Program policyholders in the county filed 137 claims since 1978, of which 106 were paid, totalling $2.1M (about $20K per paid claim). FEMA counts 72 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 "Very Low" ($13M a year across 18 hazards).

20 tropical storm or hurricane tracks 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.

25events, last 12 monthsto 30 Jun 2026
694events since 19503 deaths, 35 injuries recorded
21disaster declarationslast 21 Aug 2026
137NFIP flood claims$2.1M paid

Compared with Arkansas and the United States

MeasureUnion CountyArkansasUS
Recorded events since 195069448,9661,977,440
Events per 100 square miles66.894.256.0
Events per 10,000 residents181.0161.859.6
Events in the last 12 months251,15162,008
Deaths recorded by NCEI366826,435
Property damage (NCEI estimates)$83M$6.4B$575B
NFIP claims per 1,000 residents3.63.48.1
Average paid NFIP claim$20K$27K$43K
Claims per 100 policies in force, last 10 years22.223.016.1

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: 1Tornado: 1Wind: 4
Hail: 1Tornado: 3Wind: 7
Hail: 8Tornado: 7Wind: 7
Hail: 14Tornado: 3Wind: 21
Hail: 43Tornado: 6Flood: 4Wind: 37Winter: 2
Hail: 39Tornado: 15Flood: 29Wind: 48Winter: 8Tropical: 1Drought: 1
Hail: 42Tornado: 6Flood: 11Wind: 80Winter: 19Heat: 28Cold: 2Drought: 27Lightning: 2Other: 1
Hail: 24Tornado: 4Flood: 23Wind: 30Winter: 12Tropical: 1Heat: 49Cold: 4Drought: 15Lightning: 1Other: 3
61950s111960s221970s381980s921990s1412000s2182010s1662020s
Recorded events in Union County by decade and hazard group. HailTornadoFloodWindWinterTropicalHeatColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 458 events in the 20 years to 2025 against 160 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

Wind234
Hail172
Heat77
Flood67
Tornado45
Drought43
Winter41
Cold6
Other4
Lightning3
Tropical2
HazardEventsDeathsShare of state's events
■ Wind234—1.4%detail
■ Hail172—1.4%detail
■ Heat77—2.9%
■ Flood67—1.2%detail
■ Tornado4531.8%detail
■ Drought43—2.3%
■ Winter41—0.9%detail
■ Cold6—1.3%
■ Other4—0.6%
■ Lightning3—0.8%
■ Tropical2—0.7%

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
12 Jan 2005TornadoTornadoF3$3.0M—213County
3 Dec 1978TornadoTornadoF2$250K—17County
24 Feb 2007TornadoTornadoEF3———5County
12 Dec 2000Ice StormWinter—$40M———Forecast zone
9 Mar 1992TornadoTornadoF1$25M——1County
28 Mar 1972TornadoTornadoF2$2.5M——3County
10 Feb 1998Thunderstorm WindWind81 mph$1.0M——1County
18 May 1981TornadoTornadoF1$250K——1County
25 May 2011Thunderstorm WindWind62 mph$40K——1County
10 Jun 2009Thunderstorm WindWind61 mph$30K——1County
4 Apr 1997Thunderstorm WindWind81 mph———1County
4 Apr 1997Thunderstorm WindWind81 mph———1County
28 Mar 1972TornadoTornadoF3$2.5M———County
12 Oct 2009FloodFlood—$2.0M———County
18 Jun 2023TornadoTornadoEF2$2.0M———County
13 Apr 1991TornadoTornadoF2$250K———County
19 Aug 2008Flash FloodFlood—$250K———County
13 Sep 2008Tropical StormTropical—$250K———Forecast zone
9 Oct 2009Thunderstorm WindWind61 mph$250K———County
11 Apr 2016LightningLightning—$250K———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 Aug 2026FM-5673Fire management assistanceFirePine Tree Road FirePublic assistance
24 Jan 2026EM-3636EmergencyWinter StormSevere Winter StormPublic assistance
5 Apr 2025EM-3627EmergencySevere StormSevere Storms, Tornadoes, And FloodingPublic assistance
27 Aug 2020EM-3541EmergencyHurricaneHurricane LauraPublic assistance
3 Apr 2020DR-4518Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3461EmergencyBiologicalCovid-19Public assistance
3 Dec 2009DR-1861Major disasterSevere StormSevere Storms, Tornadoes, And FloodingPublic assistance
16 Jun 2009DR-1845Major disasterSevere StormSevere Storms, Tornadoes, And FloodingPublic assistance
7 Feb 2008DR-1744Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance, Public assistance
2 Sep 2005EM-3215EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
13 Mar 2001DR-1363Major disasterSevere StormSevere Storms And FloodingPublic assistance
29 Dec 2000DR-1354Major disasterSevere Ice StormSevere Winter Ice StormIndividual assistance, Public assistance
28 Dec 2000EM-3159EmergencySevere Ice StormSevere Winter Ice StormPublic assistance
14 Apr 1997DR-1176Major disasterFloodFlooding, Severe StormsIndividual assistance, Public assistance
28 Feb 1994DR-1011Major disasterSnowstormSevere Winter Ice StormPublic assistance
30 May 1991DR-907Major disasterFloodSevere Storms & FloodingPublic assistance
15 May 1990DR-865Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
8 Jun 1974DR-437Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
27 Apr 1973DR-375Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
15 Feb 1969DR-254Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
29 May 1968DR-239Major 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 Union County, 1978 to 2026 (hover for the amount paid).
Claims since 1978137
Paid claims106
Total paid$2.1M
Average paid claim$20K
Repetitive-loss properties120 severe
Residential policies in force720.5% of 14,245 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202511$11,057$11,057
202433$87,549$29,183
202311$275,000$275,000
202255$379,729$75,946
201922$39,977$19,989
201832$40,707$20,354
201710$0—
201611$6,770$6,770
201410$0—
201110$0—
20092821$520,044$24,764
200310$0—
200211$56,327$56,327
200166$104,336$17,389
199721$2,791$2,791
199610$0—
1993106$28,586$4,764
199221$478$478
19913128$388,048$13,859
199063$16,681$5,560
198833$15,999$5,333
198711$500$500
198665$23,736$4,747
198521$8,199$8,199
198487$13,117$1,874

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 53.9 of 100
Expected annual loss$13MVery Low
Social vulnerabilityVery High
Community resilienceRelatively Moderate
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Low$4,862,521
Ice stormVery High$1,856,413
TornadoRelatively Moderate$1,780,704
Heat waveRelatively Moderate$1,398,805
EarthquakeRelatively Low$930,215
Strong windRelatively Moderate$882,382
LightningRelatively Moderate$291,765
HailRelatively Low$230,429
Cold waveVery Low$176,428
HurricaneRelatively Low$138,660
DroughtRelatively Low$21,576
Winter weatherRelatively Low$20,393
WildfireVery Low$8,848
LandslideVery Low$889

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 miles20
Tracks within 50 miles7
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Laura202031 mi63 mph
Delta202083 mi40 mph
Barry201984 mi40 mph
Isaac201275 mi40 mph
Rita200587 mi40 mph
Lili200292 mi46 mph
Danny198588 mi46 mph
Elena198599 mi52 mph
Betsy196535 mi58 mph
Audrey195781 mi63 mph
Unnamed Atlantic storm194142 mi40 mph
Unnamed Atlantic storm192389 mi52 mph
Unnamed Atlantic storm192067 mi46 mph
Unnamed Atlantic storm190964 mi63 mph
Unnamed Atlantic storm190573 mi40 mph
Unnamed Atlantic storm189888 mi40 mph
Unnamed Atlantic storm189129 mi52 mph
Unnamed Atlantic storm188618 mi58 mph
Unnamed Atlantic storm187947 mi58 mph
Unnamed Atlantic storm186548 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 Union County, AR?

NCEI records 172 hail events in Union County since 1950, in 49 different years; that is about 2.2 recorded events a year. 52 reports were golf-ball size (1.75 in) or larger.

Has Union County had a tornado?

Yes. NCEI records 45 tornadoes in Union County since 1950, 13 of them rated (E)F2 or stronger. Tornado deaths recorded: 3.

When was the last federal disaster declaration for Union County?

21 Aug 2026: Pine Tree Road Fire, a fire management assistance declaration for fire. The county appears in 21 declarations since 1953.

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

137 NFIP claims since 1978, 106 of them paid, for $2.1M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

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

How does Union County compare with the rest of Arkansas?

66.8 recorded events per 100 square miles against 94.2 statewide, and 3.6 NFIP claims per 1,000 residents against 3.4. 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.