County Hazards

States › Tennessee › Roane County

Roane 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 47145 · 53,992 residents (2021) · 361 sq mi · dominant hazard Wind

Hail · 51Tornado · 6Flood · 46Wind · 285Winter · 45
1958-04-24: Hail1984-07-02: Hail1992-09-10: Hail1996-04-13: Hail1996-08-26: Hail1997-07-28: Hail1998-05-21: Hail1999-06-02: Hail2002-05-02: Hail2003-08-04: Hail2003-08-15: Hail2003-02-22: Hail2003-04-29: Hail2003-04-29: Hail2003-04-29: Hail2003-04-29: Hail2003-04-29: Hail2003-04-29: Hail2003-04-25: Hail2003-06-11: Hail2003-07-13: Hail2003-07-13: Hail2004-12-10: Hail2004-05-26: Hail2005-05-20: Hail2005-10-21: Hail2006-04-26: Hail2007-04-03: Hail2007-06-23: Hail2007-06-15: Hail2009-06-10: Hail2010-05-28: Hail2010-05-28: Hail2010-05-14: Hail2011-06-15: Hail2012-03-02: Hail2014-08-20: Hail2015-07-14: Hail2017-03-21: Hail2017-03-21: Hail2017-03-21: Hail2017-03-21: Hail2017-04-17: Hail2020-06-14: Hail2023-06-11: Hail2025-05-08: Hail2025-09-04: Hail2025-09-04: Hail2025-09-04: Hail1977-10-01: Tornado2011-06-22: Tornado2014-06-10: Tornado2023-08-03: Tornado2025-05-20: Tornado2005-08-05: Flood2009-09-26: Flood2011-02-28: Flood2012-06-14: Flood2012-06-14: Flood2013-01-16: Flood2015-12-25: Flood2017-03-01: Flood2018-09-26: Flood2018-06-28: Flood2019-06-07: Flood2019-02-23: Flood2019-07-22: Flood2020-08-23: Flood2020-10-28: Flood2021-03-28: Flood2022-07-25: Flood2022-07-25: Flood2022-07-25: Flood2024-05-08: Flood2024-05-18: Flood2024-07-28: Flood2025-03-15: Flood2026-03-16: Wind2025-09-04: Wind2025-06-26: Wind2025-05-20: Wind2025-05-20: Wind2025-05-20: Wind2025-05-17: Wind2025-05-02: Wind2024-08-16: Wind2024-08-16: Wind2024-07-30: Wind2024-05-08: Wind2024-05-08: Wind2023-08-07: Wind2023-08-03: Wind2023-08-03: Wind2023-08-03: Wind2023-07-29: Wind2023-06-25: Wind2023-06-05: Wind2023-04-01: Wind2022-08-28: Wind2022-07-06: Wind2022-01-01: Wind2021-12-29: Wind2021-12-11: Wind2021-08-10: Wind2021-06-21: Wind2021-05-04: Wind2020-07-31: Wind2020-07-05: Wind2020-06-22: Wind2020-06-22: Wind2020-03-29: Wind2020-03-29: Wind2020-02-12: Wind2020-01-11: Wind2019-10-31: Wind2019-10-31: Wind2019-06-28: Wind2019-06-24: Wind2019-06-21: Wind2019-06-21: Wind2019-06-21: Wind2019-06-19: Wind2019-04-14: Wind2018-11-06: Wind2018-07-21: Wind2018-06-26: Wind2018-06-24: Wind2017-07-08: Wind2017-05-27: Wind2017-05-20: Wind2017-03-21: Wind2017-03-01: Wind2017-03-01: Wind2016-07-08: Wind2016-05-02: Wind2016-02-03: Wind2015-08-19: Wind2015-07-14: Wind2015-06-30: Wind2015-06-30: Wind2015-06-26: Wind2015-06-08: Wind2015-04-19: Wind2014-08-11: Wind2014-08-11: Wind2014-06-21: Wind2014-06-10: Wind2014-06-10: Wind2014-05-22: Wind2014-02-21: Wind2013-08-23: Wind2012-08-01: Wind2012-07-05: Wind2012-03-02: Wind2012-03-02: Wind2012-03-02: Wind2012-03-02: Wind2012-03-02: Wind2011-08-08: Wind2011-08-08: Wind2011-08-03: Wind2011-07-25: Wind2011-07-04: Wind2011-07-04: Wind2011-06-27: Wind2011-05-26: Wind2011-04-04: Wind2011-04-04: Wind2011-02-25: Wind2010-10-26: Wind2010-09-11: Wind2010-07-28: Wind2010-07-28: Wind2010-07-26: Wind2010-06-15: Wind2010-06-15: Wind2010-05-14: Wind2009-10-09: Wind2009-10-09: Wind2009-10-09: Wind2009-10-09: Wind2009-08-04: Wind2009-06-22: Wind2009-06-11: Wind2009-06-11: Wind2009-06-11: Wind2009-06-10: Wind2009-06-10: Wind2009-06-10: Wind2009-05-15: Wind2009-05-15: Wind2009-05-14: Wind2009-05-14: Wind2009-05-07: Wind
Roane 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 443 events for Roane County, Tennessee, between 1950 and 2026; damaging wind account for the largest share.

That is 122.8 events per 100 square miles, in line with the Tennessee figure of 112.2, and 82.0 per 10,000 residents against 66.4 statewide.

7 events fall in the 12 months to 30 Jun 2026. NCEI attributes 5 deaths and 4 injuries to events in the county, with property damage estimated at $19M and crop damage at $235K.

FEMA has designated the county in 24 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 40 claims since 1978, of which 33 were paid, totalling $522K (about $16K per paid claim). FEMA counts 99 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" ($22M a year across 18 hazards).

7 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.

7events, last 12 monthsto 30 Jun 2026
443events since 19505 deaths, 4 injuries recorded
24disaster declarationslast 6 Feb 2026
40NFIP flood claims$522K paid

Compared with Tennessee and the United States

MeasureRoane CountyTennesseeUS
Recorded events since 195044346,2831,977,440
Events per 100 square miles122.8112.256.0
Events per 10,000 residents82.066.459.6
Events in the last 12 months71,52462,008
Deaths recorded by NCEI580426,435
Property damage (NCEI estimates)$19M$9.2B$575B
NFIP claims per 1,000 residents0.72.58.1
Average paid NFIP claim$16K$33K$43K
Claims per 100 policies in force, last 10 years7.120.916.1

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: 1Wind: 4
Wind: 2
Tornado: 1Wind: 3
Hail: 1Wind: 3
Hail: 8Tornado: 1Flood: 8Wind: 35Winter: 10Drought: 1Lightning: 1
Hail: 23Flood: 17Wind: 135Winter: 12Tropical: 2
Hail: 12Tornado: 2Flood: 11Wind: 65Winter: 17Cold: 1Lightning: 2Other: 2
Hail: 6Tornado: 2Flood: 10Wind: 38Winter: 6Cold: 1
51950s21960s41970s41980s641990s1892000s1122010s632020s
Recorded events in Roane County by decade and hazard group. HailTornadoFloodWindWinterTropicalColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 247 events in the 20 years to 2025 against 179 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

Wind285
Hail51
Flood46
Winter45
Tornado6
Lightning3
Tropical2
Cold2
Other2
Drought1
HazardEventsDeathsShare of state's events
■ Wind28511.3%detail
■ Hail51—0.7%detail
■ Flood46—1.0%detail
■ Winter4520.8%detail
■ Tornado6—0.4%
■ Lightning310.6%
■ Tropical2—3.8%
■ Cold210.3%
■ Other2—0.5%
■ Drought1—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
14 Jan 2024Heavy SnowWinter———2—Forecast zone
1 Apr 2023High WindWind60 mph——11Forecast zone
16 Feb 2015Cold/Wind ChillCold———1—Forecast zone
6 Jul 2018LightningLightning———1—County
14 May 2005Thunderstorm WindWind69 mph$3K——2County
23 Feb 2019FloodFlood—$11M———County
6 Jul 2018LightningLightning————1County
5 May 2003Flash FloodFlood—$2.8M———County
5 May 2003Flash FloodFlood—$2.8M———County
28 Nov 2005Thunderstorm WindWind75 mph$400K———County
28 Feb 2011FloodFlood—$275K———County
14 Feb 2003FloodFlood—$248K———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
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
27 Sep 2023DR-4742Major disasterSevere StormSevere Storms, Straight-Line Winds, And TornadoPublic 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
2 Apr 2015DR-4211Major disasterSevere Ice StormSevere Winter Storm And FloodingPublic assistance
13 Aug 2014DR-4189Major disasterSevere StormSevere Storms, Tornadoes, Straight-Line Winds, And FloodingPublic assistance
5 Sep 2005EM-3217EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
7 Oct 2004DR-1568Major disasterSevere StormSevere Storms And FloodingPublic assistance
8 May 2003DR-1464Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance, Public assistance
20 Mar 2003DR-1456Major disasterSevere StormSevere Storms And FloodingPublic assistance
13 Nov 2002DR-1441Major disasterSevere StormSevere Storms And TornadosIndividual assistance, Public assistance
5 Apr 2002DR-1408Major disasterSevere StormSevere Storms And FloodingPublic assistance
15 Jan 1999DR-1260Major disasterSevere StormSevere Winter StormPublic assistance
20 Apr 1998DR-1215Major disasterSevere StormSevere Storms, Tornadoes And FloodingIndividual assistance, Public assistance
13 Jan 1998DR-1197Major disasterSevere StormSevere Storms And FloodingPublic assistance
14 Mar 1993EM-3095EmergencySnowstormSevere Snowfall, Winter StormPublic assistance
4 Jan 1991DR-889Major disasterFloodSevere Storms & FloodingIndividual assistance
29 Apr 1977DR-533Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
28 Jun 1973DR-395Major disasterFloodSevere Storms & FloodingIndividual 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 Roane County, 1978 to 2026 (hover for the amount paid).
Claims since 197840
Paid claims33
Total paid$522K
Average paid claim$16K
Repetitive-loss properties10 severe
Residential policies in force990.4% of 24,932 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202511$18,674$18,674
202021$3,448$3,448
201933$17,880$5,960
201711$17,559$17,559
201511$24,883$24,883
201410$0—
201310$0—
201211$10,108$10,108
201122$9,518$4,759
200411$37,177$37,177
200344$60,920$15,230
200243$13,604$4,535
199931$11,542$11,542
199833$4,790$1,597
199411$1,608$1,608
199111$10,523$10,523
199098$279,641$34,955
197811$216$216

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 69.0 of 100
Expected annual loss$22MRelatively Low
Social vulnerabilityRelatively High
Community resilienceRelatively Moderate
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Low$10,130,292
Cold waveRelatively Moderate$4,989,662
EarthquakeRelatively Low$2,460,117
TornadoRelatively Moderate$2,086,837
Strong windRelatively Moderate$1,050,263
LightningRelatively Moderate$533,638
Ice stormRelatively Moderate$112,122
Heat waveVery Low$103,086
Winter weatherRelatively Moderate$101,697
LandslideRelatively Moderate$65,324
HurricaneVery Low$49,539
HailVery Low$42,457
WildfireVery Low$32,419
DroughtVery Low$13,164

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 miles7
Tracks within 50 miles2
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Helene202469 mi46 mph
Zeta202064 mi52 mph
Frederic197980 mi40 mph
Audrey195799 mi40 mph
Unnamed Atlantic storm193230 mi40 mph
Unnamed Atlantic storm191548 mi40 mph
Unnamed Atlantic storm189282 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 Roane County, TN?

NCEI records 51 hail events in Roane County since 1950, in 25 different years; that is about 0.7 recorded events a year. 8 reports were golf-ball size (1.75 in) or larger.

Has Roane County had a tornado?

Yes. NCEI records 6 tornadoes in Roane County since 1950, 0 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Roane County?

6 Feb 2026: Severe Winter Storm, a major disaster declaration for winter storm. The county appears in 24 declarations since 1953.

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

40 NFIP claims since 1978, 33 of them paid, for $522K in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

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

How does Roane County compare with the rest of Tennessee?

122.8 recorded events per 100 square miles against 112.2 statewide, and 0.7 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.