County Hazards

States › Georgia › Cobb County

Cobb County, Georgia

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

FIPS 13067 · 766,802 residents (2021) · 340 sq mi · dominant hazard Wind

Hail · 222Tornado · 31Flood · 53Wind · 263Winter · 43
2025-09-06: Hail2025-06-26: Hail2025-06-26: Hail2023-09-12: Hail2023-09-12: Hail2023-09-12: Hail2023-09-12: Hail2023-09-12: Hail2023-06-06: Hail2023-06-06: Hail2022-08-05: Hail2022-06-16: Hail2021-03-25: Hail2020-08-19: Hail2020-08-19: Hail2020-07-18: Hail2018-06-16: Hail2016-04-06: Hail2016-04-06: Hail2015-09-03: Hail2015-05-18: Hail2015-04-20: Hail2015-04-20: Hail2015-04-20: Hail2015-04-20: Hail2014-10-09: Hail2013-01-30: Hail2012-07-10: Hail2012-06-13: Hail2012-05-21: Hail2012-05-17: Hail2012-05-17: Hail2012-05-17: Hail2012-05-06: Hail2012-05-06: Hail2012-04-04: Hail2012-03-02: Hail2011-07-04: Hail2011-06-24: Hail2011-06-18: Hail2011-06-15: Hail2011-06-15: Hail2011-06-15: Hail2011-04-15: Hail2011-04-15: Hail2011-04-04: Hail2011-03-26: Hail2011-02-28: Hail2010-09-27: Hail2010-09-11: Hail2010-06-19: Hail2010-06-15: Hail2010-05-26: Hail2010-04-27: Hail2010-04-24: Hail2009-06-11: Hail2009-05-15: Hail2009-04-23: Hail2009-04-23: Hail2009-04-23: Hail2009-04-23: Hail2009-04-10: Hail2009-04-10: Hail2009-04-10: Hail2009-04-02: Hail2009-02-18: Hail2008-08-02: Hail2008-07-07: Hail2008-07-07: Hail2008-05-20: Hail2008-03-15: Hail2008-03-14: Hail2008-02-17: Hail2007-08-17: Hail2007-07-26: Hail2007-07-19: Hail2007-07-01: Hail2007-06-29: Hail2007-06-12: Hail2007-05-11: Hail2007-04-03: Hail2007-04-03: Hail2006-09-28: Hail2006-08-05: Hail2006-04-19: Hail2005-12-04: Hail2005-12-04: Hail2005-06-06: Hail2005-06-06: Hail2005-02-21: Hail2004-12-10: Hail2003-08-10: Hail2003-08-04: Hail2003-07-13: Hail2003-04-30: Hail2002-11-11: Hail2002-07-30: Hail2002-07-30: Hail2002-07-23: Hail2002-07-22: Hail2002-07-22: Hail2002-07-22: Hail2002-07-21: Hail2002-07-03: Hail2002-07-02: Hail2002-06-04: Hail2002-05-09: Hail2002-05-03: Hail2001-06-26: Hail1953-12-04: Tornado1955-05-24: Tornado1958-09-21: Tornado1971-04-28: Tornado1972-08-07: Tornado1972-04-07: Tornado1974-04-03: Tornado1975-03-07: Tornado1975-02-23: Tornado1979-11-25: Tornado1986-03-19: Tornado1989-04-04: Tornado1989-04-04: Tornado1990-02-10: Tornado1991-03-29: Tornado1991-04-27: Tornado1992-11-22: Tornado1993-02-21: Tornado1995-06-30: Tornado1998-04-08: Tornado2008-02-26: Tornado2012-03-02: Tornado2013-06-13: Tornado2014-10-14: Tornado2016-11-30: Tornado2020-01-11: Tornado2023-01-12: Tornado2024-12-29: Tornado2009-10-12: Flood2009-10-12: Flood2009-09-21: Flood2009-09-21: Flood2009-09-20: Flood2009-09-21: Flood2009-09-21: Flood2009-09-20: Flood2009-09-26: Flood2010-05-03: Flood2011-04-15: Flood2012-07-11: Flood2012-07-11: Flood2013-07-20: Flood2015-01-04: Flood2015-12-24: Flood2017-04-05: Flood2017-04-05: Flood2017-06-20: Flood2018-11-12: Flood2018-11-12: Flood2018-11-12: Flood2020-02-06: Flood2020-02-06: Flood2020-02-06: Flood2020-02-06: Flood2021-09-07: Flood2025-06-07: Wind2025-06-07: Wind2025-06-07: Wind2025-06-07: Wind2025-06-07: Wind2025-03-05: Wind2024-12-29: Wind2024-08-18: Wind2024-02-28: Wind2023-12-10: Wind2023-08-07: Wind2023-07-21: Wind2023-07-21: Wind2023-07-21: Wind2023-07-02: Wind2023-06-25: Wind2023-06-25: Wind2023-06-25: Wind2023-06-06: Wind2023-01-12: Wind2023-01-12: Wind2023-01-12: Wind2023-01-12: Wind2023-01-12: Wind2022-08-05: Wind2022-07-04: Wind2022-07-04: Wind2022-07-04: Wind2022-07-04: Wind2022-07-04: Wind2022-07-04: Wind2022-07-04: Wind2022-07-04: Wind2022-07-02: Wind2022-06-17: Wind2022-06-16: Wind2021-09-07: Wind2021-06-30: Wind2021-05-04: Wind2021-03-01: Wind2021-01-26: Wind2020-08-19: Wind2020-07-25: Wind2020-07-21: Wind2020-07-18: Wind2020-01-11: Wind2019-08-01: Wind2019-07-30: Wind2019-06-24: Wind2018-06-27: Wind2018-06-16: Wind2018-06-16: Wind2018-04-04: Wind2018-03-19: Wind2018-03-01: Wind2017-07-07: Wind2017-06-23: Wind2017-06-14: Wind2017-06-14: Wind2017-06-14: Wind2017-06-12: Wind2017-05-28: Wind2017-05-28: Wind2017-04-03: Wind2017-03-21: Wind2016-07-16: Wind2016-07-06: Wind2016-06-17: Wind2016-06-01: Wind2016-04-06: Wind2015-07-18: Wind2015-07-14: Wind2015-06-24: Wind2015-06-20: Wind2015-04-20: Wind2014-08-08: Wind2014-05-30: Wind2014-04-29: Wind2014-02-21: Wind2014-02-21: Wind2014-01-11: Wind2013-06-28: Wind2013-06-28: Wind2013-06-13: Wind2013-05-19: Wind2012-07-11: Wind2012-07-04: Wind2012-05-17: Wind2012-05-06: Wind2012-03-22: Wind2012-01-21: Wind2011-11-16: Wind2011-09-05: Wind2011-06-24: Wind2011-06-18: Wind2011-06-15: Wind2011-05-26: Wind2011-04-25: Wind2011-04-21: Wind2011-04-16: Wind2011-04-15: Wind2011-04-15: Wind2011-04-04: Wind2011-04-04: Wind2010-07-26: Wind2010-07-24: Wind2010-07-09: Wind2010-06-19: Wind2010-06-15: Wind2010-06-02: Wind2010-05-26: Wind2010-05-02: Wind2009-08-26: Wind2009-07-12: Wind2009-06-22: Wind2009-06-12: Wind2009-05-03: Wind2008-08-02: Wind
Cobb County within Georgia. 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 760 events for Cobb County, Georgia, between 1950 and 2026; damaging wind account for the largest share.

That is 223.7 events per 100 square miles, above the Georgia figure of 98.3, and 9.9 per 10,000 residents against 52.5 statewide.

6 events fall in the 12 months to 30 Jun 2026. NCEI attributes 9 deaths and 374 injuries to events in the county, with property damage estimated at $249M and crop damage at $150K.

FEMA has designated the county in 19 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 2,031 claims since 1978, of which 1,536 were paid, totalling $67M (about $44K per paid claim). FEMA counts 2,144 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Relatively High" and its expected annual loss as "Relatively High" ($210M a year across 18 hazards).

18 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.

6events, last 12 monthsto 30 Jun 2026
760events since 19509 deaths, 374 injuries recorded
19disaster declarationslast 24 Jan 2026
2,031NFIP flood claims$67M paid

Compared with Georgia and the United States

MeasureCobb CountyGeorgiaUS
Recorded events since 195076056,7431,977,440
Events per 100 square miles223.798.356.0
Events per 10,000 residents9.952.559.6
Events in the last 12 months61,54162,008
Deaths recorded by NCEI944726,435
Property damage (NCEI estimates)$249M$8.7B$575B
NFIP claims per 1,000 residents2.62.38.1
Average paid NFIP claim$44K$29K$43K
Claims per 100 policies in force, last 10 years15.310.316.1

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

Tornado: 3Wind: 1
Hail: 1
Hail: 4Tornado: 7Wind: 10
Hail: 11Tornado: 3Wind: 27
Hail: 78Tornado: 8Flood: 6Wind: 50Winter: 2Heat: 2Cold: 2Drought: 3Lightning: 11
Hail: 73Tornado: 3Flood: 29Wind: 62Winter: 19Tropical: 13Heat: 7Cold: 12Drought: 18Lightning: 26Fog: 4Other: 9
Hail: 39Tornado: 4Flood: 13Wind: 66Winter: 18Tropical: 2Heat: 2Drought: 15Lightning: 12Other: 2
Hail: 16Tornado: 3Flood: 5Wind: 47Winter: 4Tropical: 2Drought: 6
41950s11960s211970s411980s1621990s2752000s1732010s832020s
Recorded events in Cobb County by decade and hazard group. HailTornadoFloodWindWinterTropicalHeatColdDroughtLightningFogOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 347 events in the 20 years to 2025 against 364 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

Wind263
Hail222
Flood53
Lightning49
Winter43
Drought42
Tornado31
Tropical17
Cold14
Heat11
Other11
Fog4
HazardEventsDeathsShare of state's events
■ Wind26321.0%detail
■ Hail222—2.5%detail
■ Flood53—1.6%detail
■ Lightning4933.7%
■ Winter43—1.3%detail
■ Drought42—0.8%
■ Tornado3141.3%detail
■ Tropical17—0.7%
■ Cold14—0.9%
■ Heat11—0.8%
■ Other11—1.2%
■ Fog4—1.8%

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
30 Jun 1995TornadoTornadoF1——4250County
13 Jul 2010LightningLightning———2—County
18 Jun 2011Thunderstorm WindWind60 mph$30K—1—County
26 May 2011Thunderstorm WindWind60 mph$30K—1—County
30 Jul 2002LightningLightning—$3K—1—County
22 Nov 1992TornadoTornadoF4$25M——34County
29 Mar 1991TornadoTornadoF3$25M——25County
19 Mar 1986TornadoTornadoF2$25M——15County
21 Feb 1993TornadoTornadoF3$50M——3County
19 May 2001LightningLightning————8County
3 Apr 1974TornadoTornadoF2———7County
8 Aug 2014LightningLightning————7County
27 Apr 1991TornadoTornadoF0$250K——3County
10 Feb 1990TornadoTornadoF2$2.5M——2County
19 Jun 1998LightningLightning—$50K——2County
29 Dec 2024TornadoTornadoEF1$50K——2County
3 May 1984Thunderstorm WindWind0 mph———2County
2 Sep 2014LightningLightning————2County
26 Jun 1994TornadoTornadoF2$5.0M——1County
8 Apr 1998TornadoTornadoF2$15M———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
24 Jan 2026EM-3642EmergencyWinter StormSevere Winter StormPublic assistance
26 Sep 2024EM-3616EmergencyTropical StormHurricane HelenePublic assistance
29 Mar 2020DR-4501Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3464EmergencyBiologicalCovid-19Public assistance
15 Sep 2017DR-4338Major disasterHurricaneHurricane IrmaPublic assistance
8 Sep 2017EM-3387EmergencyHurricaneHurricane IrmaPublic assistance
11 Feb 2014EM-3368EmergencySevere Ice StormSevere Winter StormPublic assistance
24 Sep 2009DR-1858Major disasterSevere StormSevere Storms And FloodingIndividual assistance, Public assistance
5 Sep 2005EM-3218EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
18 Sep 2004DR-1554Major disasterHurricaneHurricane IvanIndividual assistance, Public assistance
28 Jan 2000DR-1311Major disasterSevere StormSevere Winter StormPublic assistance
11 Mar 1998DR-1209Major disasterSevere StormSevere Storms And FloodingIndividual assistance, Public assistance
10 Oct 1995DR-1071Major disasterHurricaneHurricane OpalIndividual assistance, Public assistance
15 Mar 1993EM-3097EmergencySnowstormSevere Snowfall, Winter StormPublic assistance
4 Mar 1993DR-980Major disasterTornadoTornadoes, High Winds & Heavy RainsIndividual assistance
1 Dec 1992DR-969Major disasterTornadoHigh Winds, Heavy Rains & TornadoesIndividual assistance, Public assistance
23 Feb 1990DR-857Major disasterSevere StormSevere Storms, Tornaodes & FloodingIndividual assistance, Public assistance
20 Jul 1977EM-3044EmergencyDroughtDroughtPublic assistance
14 Mar 1966DR-214Major disasterFloodFloodingIndividual 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 Cobb County, 1978 to 2026 (hover for the amount paid).
Claims since 19782,031
Paid claims1,536
Total paid$67M
Average paid claim$44K
Repetitive-loss properties13221 severe
Residential policies in force2,1441.0% of 223,468 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
2026129$133,238$14,804
202585$199,561$39,912
20246253$3,149,251$59,420
20234333$1,022,269$30,978
202240$0—
2021126107$4,520,661$42,249
20203727$308,203$11,415
2019108$136,713$17,089
20181410$145,448$14,545
2017115$63,890$12,778
201684$39,187$9,797
20152211$83,078$7,553
201494$143,610$35,902
20133313$167,792$12,907
2012148$159,959$19,995
2011124$19,997$4,999
2010164$41,673$10,418
2009723627$45,174,141$72,048
200892$9,190$4,595
200742$5,081$2,541
200673$15,429$5,143
2005147129$3,275,813$25,394
20049078$3,619,355$46,402
20032614$74,153$5,297
200275$26,362$5,272

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 Highscore 94.4 of 100
Expected annual loss$210MRelatively High
Social vulnerabilityVery Low
Community resilienceRelatively Low
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively High$125,332,838
TornadoRelatively High$36,072,103
Cold waveRelatively High$20,019,784
EarthquakeRelatively Moderate$10,148,930
HailRelatively High$6,141,024
Heat waveRelatively Moderate$3,712,908
LightningVery High$3,441,660
Strong windRelatively Moderate$1,989,418
Ice stormRelatively High$1,775,950
HurricaneRelatively Low$659,713
Winter weatherRelatively Moderate$223,679
WildfireVery Low$68,407
LandslideRelatively Low$14,472

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 miles18
Tracks within 50 miles6
Hurricane strength within 50 miles0
StormYearClosest approachMax wind while within 100 mi
Helene202485 mi52 mph
Eloise197592 mi63 mph
Unnamed Atlantic storm193272 mi40 mph
Unnamed Atlantic storm191539 mi40 mph
Unnamed Atlantic storm191231 mi40 mph
Unnamed Atlantic storm190712 mi40 mph
Unnamed Atlantic storm190692 mi40 mph
Unnamed Atlantic storm190348 mi40 mph
Unnamed Atlantic storm190221 mi40 mph
Unnamed Atlantic storm189889 mi46 mph
Unnamed Atlantic storm189847 mi52 mph
Unnamed Atlantic storm189676 mi40 mph
Unnamed Atlantic storm189354 mi52 mph
Unnamed Atlantic storm188988 mi52 mph
Unnamed Atlantic storm188783 mi40 mph
Unnamed Atlantic storm188270 mi46 mph
Unnamed Atlantic storm185959 mi46 mph
Unnamed Atlantic storm185280 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 Cobb County, GA?

NCEI records 222 hail events in Cobb County since 1950, in 44 different years; that is about 2.9 recorded events a year. 35 reports were golf-ball size (1.75 in) or larger.

Has Cobb County had a tornado?

Yes. NCEI records 31 tornadoes in Cobb County since 1950, 12 of them rated (E)F2 or stronger. Tornado deaths recorded: 4.

When was the last federal disaster declaration for Cobb County?

24 Jan 2026: Severe Winter Storm, a emergency declaration for winter storm. The county appears in 19 declarations since 1953.

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

2,031 NFIP claims since 1978, 1,536 of them paid, for $67M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Cobb County in the National Risk Index's high-risk band?

FEMA's National Risk Index (December 2025) rates the county "Relatively High" for overall risk, "Relatively High" for expected annual loss, "Very Low" for social vulnerability and "Relatively Low" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Cobb County compare with the rest of Georgia?

223.7 recorded events per 100 square miles against 98.3 statewide, and 2.6 NFIP claims per 1,000 residents against 2.3. 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.