County Hazards

States › Tennessee › Blount County

Blount County, Tennessee

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

FIPS 47009 · 137,605 residents (2021) · 559 sq mi · dominant hazard Wind

Hail · 108Tornado · 16Flood · 37Wind · 369Winter · 0
1957-08-01: Hail1958-04-24: Hail1959-08-24: Hail1959-07-10: Hail1960-10-03: Hail1963-06-08: Hail1964-05-27: Hail1966-07-13: Hail1966-05-29: Hail1966-05-29: Hail1968-05-29: Hail1970-04-27: Hail1972-01-13: Hail1974-05-30: Hail1982-03-17: Hail1984-05-07: Hail1985-07-10: Hail1990-07-01: Hail1996-07-02: Hail1996-04-13: Hail1998-05-07: Hail1998-05-21: Hail1999-02-09: Hail1999-02-09: Hail1999-05-07: Hail1999-05-07: Hail1999-08-23: Hail1999-07-29: Hail1999-01-18: Hail2000-07-28: Hail2001-06-25: Hail2001-06-25: Hail2001-06-25: Hail2001-06-25: Hail2002-11-10: Hail2003-08-10: Hail2003-05-15: Hail2003-05-15: Hail2003-08-31: Hail2004-12-10: Hail2004-12-10: Hail2004-05-26: Hail2004-05-26: Hail2004-06-02: Hail2004-07-25: Hail2005-04-22: Hail2005-08-05: Hail2005-12-28: Hail2006-05-20: Hail2006-05-20: Hail2006-04-03: Hail2006-04-21: Hail2006-04-03: Hail2007-08-02: Hail2008-05-09: Hail2008-05-09: Hail2009-06-03: Hail2009-05-15: Hail2009-06-17: Hail2009-06-17: Hail2009-08-27: Hail2010-05-28: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-05-26: Hail2011-08-18: Hail2011-04-27: Hail2011-04-27: Hail2011-04-27: Hail2011-04-27: Hail2012-04-01: Hail2012-04-03: Hail2012-03-29: Hail2012-03-02: Hail2012-02-29: Hail2012-02-29: Hail2014-07-27: Hail2015-06-02: Hail2016-05-02: Hail2016-06-14: Hail2018-03-17: Hail2018-07-21: Hail2019-05-18: Hail2019-05-18: Hail2020-07-09: Hail2021-03-26: Hail2021-05-04: Hail2022-05-06: Hail2023-04-14: Hail2024-05-26: Hail2024-05-26: Hail2024-05-06: Hail2024-04-11: Hail2025-05-08: Hail2025-05-08: Hail2025-05-02: Hail2025-05-02: Hail2025-04-10: Hail2025-04-10: Hail2025-10-21: Hail2025-10-21: Hail1972-06-28: Tornado1974-04-03: Tornado1975-03-07: Tornado1980-03-07: Tornado1993-02-21: Tornado2001-06-02: Tornado2010-04-25: Tornado2011-03-23: Tornado2011-04-27: Tornado2011-04-27: Tornado2011-04-27: Tornado2011-04-27: Tornado2012-03-01: Tornado2012-02-29: Tornado2019-06-07: Tornado2019-06-07: Tornado2009-09-26: Flood2012-08-05: Flood2012-08-05: Flood2013-01-30: Flood2013-01-15: Flood2013-01-30: Flood2015-12-02: Flood2015-12-02: Flood2017-04-23: Flood2018-03-01: Flood2018-03-01: Flood2019-02-23: Flood2020-06-29: Flood2020-06-29: Flood2020-04-13: Flood2020-02-05: Flood2020-02-05: Flood2020-07-01: Flood2023-03-02: Flood2023-03-02: Flood2023-08-10: Flood2024-01-09: Flood2024-09-25: Flood2026-05-29: Flood2026-03-16: Wind2026-03-16: Wind2026-03-11: Wind2026-02-20: Wind2025-12-18: Wind2025-05-20: Wind2024-08-18: Wind2024-08-16: Wind2024-08-01: Wind2024-07-30: Wind2024-07-17: Wind2024-06-09: Wind2024-05-23: Wind2024-05-08: Wind2024-05-08: Wind2024-05-06: Wind2024-02-28: Wind2024-02-28: Wind2023-08-12: Wind2023-08-12: Wind2023-08-07: Wind2023-08-07: Wind2023-06-25: Wind2023-06-11: Wind2023-04-01: Wind2023-03-25: Wind2023-03-25: Wind2023-03-25: Wind2023-03-03: Wind2023-03-03: Wind2023-03-03: Wind2023-02-27: Wind2023-01-12: Wind2023-01-12: Wind2022-08-05: Wind2022-08-05: Wind2022-08-03: Wind2022-07-12: Wind2022-07-07: Wind2022-06-17: Wind2022-05-06: Wind2022-05-06: Wind2021-12-11: Wind2021-06-21: Wind2021-06-21: Wind2021-05-04: Wind2020-07-09: Wind2020-07-09: Wind2020-07-05: Wind2020-06-22: Wind2020-04-13: Wind2020-03-29: Wind2020-03-29: Wind2020-03-29: Wind2020-03-29: Wind2020-01-11: Wind2020-01-11: Wind2019-12-30: Wind2019-12-30: Wind2019-06-24: Wind2019-06-21: Wind2019-06-20: Wind2019-05-18: Wind2019-05-18: Wind2018-11-06: Wind2018-08-08: Wind2018-06-03: Wind2018-05-18: Wind2017-11-18: Wind2017-05-27: Wind2017-04-17: Wind2017-03-21: Wind2017-03-21: Wind2017-03-21: Wind2017-02-25: Wind2016-11-30: Wind2016-08-27: Wind2016-08-27: Wind2016-07-08: Wind2016-07-08: Wind2016-06-17: Wind2016-06-17: Wind2016-06-17: Wind2015-08-10: Wind2015-07-20: Wind2015-07-14: Wind2015-07-14: Wind2015-04-25: Wind2015-04-19: Wind2014-08-20: Wind2014-07-27: Wind2014-07-27: Wind2014-07-27: Wind2014-07-24: Wind2014-05-22: Wind2014-02-21: Wind2013-08-23: Wind2013-06-13: Wind2013-05-21: Wind2013-05-21: Wind2012-08-09: Wind2012-07-05: Wind2012-07-05: Wind2012-07-05: Wind2012-07-05: Wind2012-07-01: Wind2012-06-14: Wind2012-06-14: Wind2012-05-31: Wind2012-03-29: Wind2011-09-03: Wind2011-08-18: Wind2011-08-08: Wind2011-08-08: Wind2011-08-03: Wind2011-07-12: Wind2011-07-04: Wind2011-06-21: Wind2011-06-21: Wind2011-05-22: Wind
Blount County within Tennessee. 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 535 events for Blount County, Tennessee, between 1950 and 2026; damaging wind account for the largest share.

That is 95.7 events per 100 square miles, in line with the Tennessee figure of 112.2, and 38.9 per 10,000 residents against 66.4 statewide.

8 events fall in the 12 months to 30 Jun 2026. NCEI attributes 1 death and 15 injuries to events in the county, with property damage estimated at $20M and crop damage at $443K.

FEMA has designated the county in 18 federal disaster declarations since 1953; the most recent is Severe Winter Storm (major disaster, 6 Feb 2026).

National Flood Insurance Program policyholders in the county filed 60 claims since 1978, of which 43 were paid, totalling $1.3M (about $29K per paid claim). FEMA counts 251 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 "Relatively Low" ($37M a year across 18 hazards).

9 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.

8events, last 12 monthsto 30 Jun 2026
535events since 19501 death, 15 injuries recorded
18disaster declarationslast 6 Feb 2026
60NFIP flood claims$1.3M paid

Compared with Tennessee and the United States

MeasureBlount CountyTennesseeUS
Recorded events since 195053546,2831,977,440
Events per 100 square miles95.7112.256.0
Events per 10,000 residents38.966.459.6
Events in the last 12 months81,52462,008
Deaths recorded by NCEI180426,435
Property damage (NCEI estimates)$20M$9.2B$575B
NFIP claims per 1,000 residents0.42.58.1
Average paid NFIP claim$29K$33K$43K
Claims per 100 policies in force, last 10 years13.120.916.1

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: 4Wind: 11
Hail: 7Wind: 20
Hail: 3Tornado: 3Wind: 9
Hail: 3Tornado: 1Wind: 15
Hail: 17Tornado: 1Flood: 7Wind: 59Lightning: 2
Hail: 32Tornado: 1Flood: 7Wind: 117Other: 1
Hail: 25Tornado: 10Flood: 11Wind: 81Other: 2
Hail: 17Flood: 12Wind: 57
151950s271960s151970s191980s861990s1582000s1292010s862020s
Recorded events in Blount County by decade and hazard group. HailTornadoFloodWindLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 271 events in the 20 years to 2025 against 188 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

Wind369
Hail108
Flood37
Tornado16
Other3
Lightning2
HazardEventsDeathsShare of state's events
■ Wind369—1.7%detail
■ Hail108—1.5%detail
■ Flood37—0.8%detail
■ Tornado16—0.9%detail
■ Other3—0.8%
■ Lightning210.4%

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
13 Jul 1996LightningLightning———1—County
5 Jul 2012Thunderstorm WindWind69 mph———4County
28 Jun 1972TornadoTornadoF1$250K——3County
5 Jul 2012Thunderstorm WindWind69 mph———3County
23 Mar 2011TornadoTornadoEF3$2.5M——2County
3 Apr 1974TornadoTornadoF2$250K——2County
3 Mar 2023Thunderstorm WindWind60 mph———1County
23 May 1999LightningLightning—$6.0M———County
5 May 2003Flash FloodFlood—$3.6M———County
23 Feb 2019FloodFlood—$2.8M———County
1 Aug 1995Thunderstorm WindWind99 mph$1.0M———County
27 Apr 2011TornadoTornadoEF4$1.0M———County
21 Feb 1993TornadoTornadoF2$500K———County
2 Jun 2001TornadoTornadoF0$200K———County
20 Apr 1996Thunderstorm WindWind75 mph$100K$20K——County
25 Apr 2010Thunderstorm WindWind75 mph$120K———County
27 Jul 2005Thunderstorm WindWind75 mph$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
6 Feb 2026DR-4898Major disasterWinter StormSevere Winter StormPublic assistance
24 Jan 2026EM-3635EmergencyWinter StormSevere Winter StormPublic assistance
2 Apr 2025EM-3625EmergencySevere StormSevere Storms, Straight-Line Winds, Tornadoes, And FloodingPublic assistance
2 Apr 2020DR-4514Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3473EmergencyBiologicalCovid-19Public assistance
17 Apr 2019DR-4427Major disasterFloodSevere Storms, Flooding, Landslides, And MudslidesPublic assistance
23 Jun 2017DR-4320Major disasterSevere StormSevere Storms, Straight-Line Winds, And FloodingPublic assistance
19 Nov 2016FM-5165Fire management assistanceFireEast Miller Cove FirePublic assistance
2 Apr 2015DR-4211Major disasterSevere Ice StormSevere Winter Storm And FloodingPublic assistance
1 May 2011DR-1974Major disasterSevere StormSevere Storms, Tornadoes, Straight-Line Winds, And Associated FloodingPublic assistance
5 Sep 2005EM-3217EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
8 May 2003DR-1464Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance
5 Apr 2002DR-1408Major disasterSevere StormSevere Storms And FloodingIndividual assistance, Public assistance
20 Apr 1998DR-1215Major disasterSevere StormSevere Storms, Tornadoes And FloodingIndividual assistance
14 Apr 1994DR-1022Major disasterFloodExtensive Rainfall And Flash FloodingIndividual assistance, Public assistance
14 Mar 1993EM-3095EmergencySnowstormSevere Snowfall, Winter StormPublic assistance
4 Apr 1974DR-424Major disasterTornadoTornadoesIndividual assistance, Public assistance
21 Mar 1973DR-366Major disasterFloodHeavy Rains & 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 Blount County, 1978 to 2026 (hover for the amount paid).
Claims since 197860
Paid claims43
Total paid$1.3M
Average paid claim$29K
Repetitive-loss properties60 severe
Residential policies in force2510.5% of 55,045 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202310$0—
202210$0—
202110$0—
20201514$260,728$18,623
2019149$74,157$8,240
201710$0—
201611$15$15
201343$7,190$2,397
201210$0—
200377$125,486$17,927
2002106$781,656$130,276
198611$1,458$1,458
198410$0—
198122$5,251$2,625

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 74.2 of 100
Expected annual loss$37MRelatively Low
Social vulnerabilityRelatively Low
Community resilienceRelatively Moderate
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Moderate$17,362,762
EarthquakeRelatively Moderate$10,013,494
Cold waveRelatively Moderate$2,810,797
TornadoRelatively Moderate$2,594,216
LightningRelatively High$1,336,890
Strong windRelatively Moderate$937,455
Ice stormRelatively Moderate$310,719
Heat waveRelatively Low$286,285
LandslideRelatively Moderate$227,038
HailRelatively Low$198,001
WildfireRelatively Low$188,652
Winter weatherRelatively Moderate$150,094
HurricaneVery Low$142,515
DroughtRelatively Low$42,093

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 miles9
Tracks within 50 miles2
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Helene202494 mi52 mph
Zeta202032 mi52 mph
Frederic197996 mi40 mph
Unnamed Atlantic storm193215 mi40 mph
Unnamed Atlantic storm191684 mi40 mph
Unnamed Atlantic storm191574 mi40 mph
Unnamed Atlantic storm190786 mi40 mph
Unnamed Atlantic storm190284 mi40 mph
Unnamed Atlantic storm190180 mi40 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 Blount County, TN?

NCEI records 108 hail events in Blount County since 1950, in 45 different years; that is about 1.4 recorded events a year. 14 reports were golf-ball size (1.75 in) or larger.

Has Blount County had a tornado?

Yes. NCEI records 16 tornadoes in Blount County since 1950, 5 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Blount County?

6 Feb 2026: Severe Winter Storm, a major disaster declaration for winter storm. The county appears in 18 declarations since 1953.

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

60 NFIP claims since 1978, 43 of them paid, for $1.3M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

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

How does Blount County compare with the rest of Tennessee?

95.7 recorded events per 100 square miles against 112.2 statewide, and 0.4 NFIP claims per 1,000 residents against 2.5. 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.