County Hazards

States › Kentucky › Mason County

Mason County, Kentucky

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

FIPS 21161 · 16,931 residents (2021) · 240 sq mi · dominant hazard Wind

Hail · 33Tornado · 11Flood · 79Wind · 146Winter · 83
1966-07-08: Hail1966-07-09: Hail1968-04-23: Hail1980-09-04: Hail1996-05-05: Hail1998-05-13: Hail1998-05-13: Hail1998-05-24: Hail1998-06-16: Hail1998-06-10: Hail2000-07-14: Hail2002-11-10: Hail2002-03-15: Hail2007-08-16: Hail2009-05-28: Hail2009-06-02: Hail2011-05-10: Hail2011-06-10: Hail2012-06-16: Hail2014-10-07: Hail2015-04-08: Hail2015-04-08: Hail2015-04-08: Hail2015-04-08: Hail2016-04-22: Hail2016-05-01: Hail2018-04-03: Hail2022-08-21: Hail1964-03-10: Tornado1967-05-07: Tornado1969-07-22: Tornado1981-06-09: Tornado2019-06-24: Tornado2020-04-08: Tornado2024-04-02: Tornado2024-04-12: Tornado2025-04-03: Tornado2026-06-18: Tornado2008-03-04: Flood2008-06-04: Flood2009-09-21: Flood2010-05-12: Flood2010-07-21: Flood2010-07-21: Flood2010-07-21: Flood2010-07-21: Flood2010-05-02: Flood2011-04-12: Flood2011-04-23: Flood2011-04-23: Flood2011-06-20: Flood2011-06-20: Flood2012-07-27: Flood2012-07-27: Flood2015-07-18: Flood2017-07-22: Flood2018-09-05: Flood2018-09-24: Flood2018-09-24: Flood2018-09-09: Flood2018-02-22: Flood2019-06-17: Flood2020-05-19: Flood2020-05-19: Flood2020-05-19: Flood2020-05-19: Flood2020-05-19: Flood2020-05-19: Flood2020-05-19: Flood2021-06-13: Flood2021-02-28: Flood2021-02-28: Flood2022-01-01: Flood2022-01-01: Flood2022-02-17: Flood2022-05-06: Flood2023-01-03: Flood2023-02-16: Flood2025-02-16: Flood2025-02-16: Flood2025-02-16: Flood2025-02-16: Flood2025-02-16: Flood2025-02-16: Flood2025-02-16: Flood2025-02-16: Flood2025-02-16: Flood2025-04-05: Flood2025-07-20: Flood2025-07-20: Flood2026-05-24: Flood2026-05-24: Flood2026-05-24: Flood2026-05-24: Flood1961-04-25: Wind1962-07-22: Wind1964-07-09: Wind1970-04-02: Wind1973-08-20: Wind1974-06-22: Wind1974-04-03: Wind1976-08-15: Wind1979-06-07: Wind1980-08-11: Wind1982-06-08: Wind1986-03-12: Wind1987-05-21: Wind1989-07-11: Wind1990-06-14: Wind1990-10-04: Wind1990-05-16: Wind1990-06-03: Wind1991-08-19: Wind1996-04-20: Wind1996-05-08: Wind1996-04-23: Wind1996-05-04: Wind1996-05-05: Wind1997-07-02: Wind1997-08-17: Wind1998-05-13: Wind1998-05-13: Wind1998-06-22: Wind1998-11-10: Wind2000-11-09: Wind2000-09-20: Wind2000-07-14: Wind2000-08-09: Wind2001-07-08: Wind2001-07-08: Wind2001-07-08: Wind2001-10-24: Wind2002-07-22: Wind2003-07-10: Wind2003-08-22: Wind2004-05-31: Wind2004-05-31: Wind2005-01-13: Wind2006-04-02: Wind2006-06-19: Wind2006-06-22: Wind2006-05-25: Wind2006-05-10: Wind2006-12-01: Wind2007-08-16: Wind2007-07-18: Wind2007-08-16: Wind2007-06-25: Wind2007-07-10: Wind2008-02-06: Wind2008-06-03: Wind2010-08-05: Wind2010-08-05: Wind2010-08-05: Wind2010-06-15: Wind2010-10-26: Wind2011-04-23: Wind2011-02-28: Wind2012-06-29: Wind2012-06-29: Wind2012-07-08: Wind2012-07-24: Wind2012-07-24: Wind2012-09-08: Wind2012-09-08: Wind2013-05-21: Wind2013-11-01: Wind2013-12-22: Wind2013-10-31: Wind2014-05-14: Wind2014-05-14: Wind2014-06-03: Wind2014-10-07: Wind2014-10-07: Wind2014-10-07: Wind2015-07-13: Wind2016-05-01: Wind2016-06-23: Wind2016-06-23: Wind2016-07-08: Wind2017-03-01: Wind2017-03-01: Wind2017-03-01: Wind2017-03-01: Wind2017-07-22: Wind2017-07-22: Wind2019-06-24: Wind2019-06-16: Wind2019-06-16: Wind2019-06-16: Wind2019-06-24: Wind2019-05-17: Wind2020-01-11: Wind2020-06-10: Wind2020-07-10: Wind2020-04-08: Wind2020-04-08: Wind
Mason County within Kentucky. 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.

Mason County, Kentucky, has 363 weather events in the NCEI Storm Events record since 1950, most of them damaging wind.

That is 151.2 events per 100 square miles, in line with the Kentucky figure of 140.0, and 214.4 per 10,000 residents against 122.6 statewide.

17 events fall in the 12 months to 30 Jun 2026. NCEI attributes 1 death and 10 injuries to events in the county, with property damage estimated at $10M and crop damage at $970K.

FEMA has designated the county in 23 federal disaster declarations since 1953; the most recent is Severe Winter Storm (emergency, 24 Jan 2026).

National Flood Insurance Program policyholders in the county filed 16 claims since 1978, of which 14 were paid, totalling $178K (about $13K per paid claim). FEMA counts 13 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 "Very Low" ($9.7M a year across 18 hazards).

4 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.

17events, last 12 monthsto 30 Jun 2026
363events since 19501 death, 10 injuries recorded
23disaster declarationslast 24 Jan 2026
16NFIP flood claims$178K paid

Compared with Kentucky and the United States

MeasureMason CountyKentuckyUS
Recorded events since 195036355,2851,977,440
Events per 100 square miles151.2140.056.0
Events per 10,000 residents214.4122.659.6
Events in the last 12 months171,25462,008
Deaths recorded by NCEI159926,435
Property damage (NCEI estimates)$10M$3.5B$575B
NFIP claims per 1,000 residents0.96.28.1
Average paid NFIP claim$13K$22K$43K
Claims per 100 policies in force, last 10 years15.437.316.1

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: 3Tornado: 3Wind: 3
Wind: 6
Hail: 1Tornado: 1Wind: 5
Hail: 11Flood: 7Wind: 24Winter: 5Heat: 1Cold: 1
Hail: 6Tornado: 1Flood: 19Wind: 33Winter: 16Heat: 1Cold: 1
Hail: 11Tornado: 1Flood: 21Wind: 43Winter: 39Heat: 4Other: 1
Hail: 1Tornado: 5Flood: 32Wind: 32Winter: 23Heat: 1Cold: 1
01950s91960s61970s71980s491990s772000s1202010s952020s
Recorded events in Mason County by decade and hazard group. HailTornadoFloodWindWinterHeatColdOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 234 events in the 20 years to 2025 against 96 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

Wind146
Winter83
Flood79
Hail33
Tornado11
Heat7
Cold3
Other1
HazardEventsDeathsShare of state's events
■ Wind146—0.7%detail
■ Winter83—1.0%detail
■ Flood7911.0%detail
■ Hail33—0.5%detail
■ Tornado11—0.7%detail
■ Heat7—0.3%
■ Cold3—0.1%
■ Other1—0.1%

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 Mar 1997Flash FloodFlood—$500K—1—County
9 Jun 1981TornadoTornadoF2$2.5M——7County
2 Jan 2012Winter WeatherWinter————3Forecast zone
14 Sep 2008High WindWind60 mph$2.0M———Forecast zone
18 Feb 2000Flash FloodFlood—$1.0M———County
22 Jul 2017Flash FloodFlood—$750K———County
25 Jul 1994Thunderstorm WindWind0 mph$500$500K——County
17 Nov 1993Thunderstorm WindWind0 mph$500K———County
10 May 2003TornadoTornadoF3$500K———County
18 Jun 2026TornadoTornadoEF2$500K———County
6 Apr 2007Frost/FreezeCold——$465K——Forecast zone
2 Apr 2024TornadoTornadoEF1$300K———County
6 Jan 1996Winter StormWinter—$200K———Forecast zone
14 Jul 2000Thunderstorm WindWind69 mph$150K———County
9 Nov 2000Thunderstorm WindWind69 mph$100K———County
15 May 2003FloodFlood—$100K———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 Jan 2026EM-3633EmergencyWinter StormSevere Winter StormPublic assistance
3 Apr 2025EM-3626EmergencySevere StormSevere Storms, Straight-Line Winds, Tornadoes, And FloodingPublic assistance
16 Feb 2025EM-3624EmergencySevere StormSevere Storms, Straight-Line Winds, Flooding, And LandslidesPublic assistance
22 May 2024DR-4782Major disasterSevere StormSevere Storms, Straight-Line Winds, Tornadoes, Landslides, And MudslidesIndividual assistance
23 Apr 2021DR-4595Major disasterFloodSevere, Storms, Flooding, Landslides, And MudslidesPublic assistance
28 Mar 2020DR-4497Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3469EmergencyBiologicalCovid-19Public assistance
12 May 2015DR-4218Major disasterFloodSevere Winter Storm, Snowstorm, Flooding, Landslides, And MudslidesPublic assistance
4 May 2011DR-1976Major disasterSevere StormSevere Storms, Tornadoes, And FloodingPublic assistance
23 Jul 2010DR-1925Major disasterSevere StormSevere Storms, Flooding, And MudslidesIndividual assistance
11 May 2010DR-1912Major disasterSevere StormSevere Storms, Flooding, Mudslides, And TornadoesPublic assistance
5 Feb 2009DR-1818Major disasterSevere Ice StormSevere Winter Storm And FloodingPublic assistance
28 Jan 2009EM-3302EmergencySevere Ice StormSevere Winter StormPublic assistance
10 Sep 2005EM-3231EmergencyHurricaneHurricane KatrinaPublic assistance
10 Jun 2004DR-1523Major disasterSevere StormSevere Storms, Tornadoes, Flooding, And MudslidesIndividual assistance
3 Jun 2003DR-1471Major disasterSevere StormSevere Storms, Flooding, Mud And Rock Slides, And TornadoesIndividual assistance
14 Mar 2003DR-1454Major disasterSevere StormSevere Winter Ice And Snow Storms, Heavy Rain, Flooding, Tornadoes, And Mud AndIndividual assistance, Public assistance
15 Aug 2001DR-1388Major disasterSevere StormSevere Storms And FloodingPublic assistance
28 Feb 2000DR-1320Major disasterSevere StormSevere Storms And FloodingIndividual assistance
4 Mar 1997DR-1163Major disasterSevere StormSevere Storm, Flooding, And TornadoesIndividual assistance, Public assistance
13 Jan 1996DR-1089Major disasterSnowstormBlizzard Of 96Public assistance
16 Mar 1993EM-3104EmergencySnowstormSevere Snowfall & Winter StormPublic assistance
4 May 1968DR-237Major disasterTornadoTornadoes & Severe StormsIndividual 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 Mason County, 1978 to 2026 (hover for the amount paid).
Claims since 197816
Paid claims14
Total paid$178K
Average paid claim$13K
Repetitive-loss properties0
Residential policies in force130.1% of 9,328 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
201721$61,392$61,392
201511$17,052$17,052
201033$34,420$11,473
200922$16,112$8,056
200211$5,610$5,610
200111$14,768$14,768
200011$16,276$16,276
199732$9,850$4,925
197922$2,889$1,444

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 39.2 of 100
Expected annual loss$9.7MVery Low
Social vulnerabilityRelatively High
Community resilienceRelatively High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Low$6,405,479
TornadoRelatively Low$1,299,041
Strong windRelatively Moderate$850,251
Heat waveRelatively Low$304,584
EarthquakeVery Low$271,308
Cold waveVery Low$187,988
LightningRelatively Low$165,907
HailRelatively Low$133,461
Winter weatherRelatively Low$44,592
Ice stormRelatively Low$41,034
HurricaneVery Low$17,319
DroughtVery Low$12,008
WildfireVery Low$1,663
LandslideVery Low$522

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 miles4
Tracks within 50 miles2
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Opal199519 mi46 mph
Unnamed Atlantic storm191582 mi40 mph
Unnamed Atlantic storm189249 mi52 mph
Unnamed Atlantic storm188876 mi52 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 Mason County, KY?

NCEI records 33 hail events in Mason County since 1950, in 19 different years; that is about 0.4 recorded events a year. 7 reports were golf-ball size (1.75 in) or larger.

Has Mason County had a tornado?

Yes. NCEI records 11 tornadoes in Mason County since 1950, 4 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Mason County?

24 Jan 2026: Severe Winter Storm, a emergency declaration for winter storm. The county appears in 23 declarations since 1953.

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

16 NFIP claims since 1978, 14 of them paid, for $178K in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

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

How does Mason County compare with the rest of Kentucky?

151.2 recorded events per 100 square miles against 140.0 statewide, and 0.9 NFIP claims per 1,000 residents against 6.2. 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.