County Hazards

States › North Carolina › Onslow County

Onslow County, North Carolina

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

FIPS 37133 · 206,160 residents (2021) · 762 sq mi · dominant hazard Wind

Hail · 193Tornado · 50Flood · 62Wind · 240Winter · 26
1974-06-23: Hail1978-04-26: Hail1979-08-21: Hail1981-05-19: Hail1983-03-21: Hail1983-03-21: Hail1984-06-15: Hail1984-09-15: Hail1986-05-25: Hail1988-05-10: Hail1989-04-27: Hail1990-05-20: Hail1992-06-21: Hail1992-06-21: Hail1996-05-06: Hail1996-07-28: Hail1996-07-03: Hail1996-07-03: Hail1997-07-05: Hail1997-08-05: Hail1997-04-21: Hail1997-04-21: Hail1997-04-21: Hail1997-05-13: Hail1998-05-04: Hail1998-06-23: Hail1998-05-04: Hail1998-05-08: Hail1998-05-04: Hail1998-06-23: Hail1998-06-23: Hail1998-05-27: Hail1998-05-27: Hail1999-02-28: Hail1999-08-11: Hail2000-04-18: Hail2000-05-28: Hail2000-08-13: Hail2000-08-13: Hail2001-04-01: Hail2001-04-01: Hail2001-04-01: Hail2001-05-28: Hail2001-05-12: Hail2001-05-20: Hail2001-05-26: Hail2001-04-01: Hail2001-07-06: Hail2002-06-14: Hail2002-07-10: Hail2002-08-19: Hail2003-03-06: Hail2003-04-30: Hail2003-07-17: Hail2004-06-11: Hail2004-07-11: Hail2004-10-13: Hail2005-05-24: Hail2005-08-03: Hail2005-08-16: Hail2006-04-17: Hail2006-06-28: Hail2006-06-30: Hail2006-06-28: Hail2006-04-03: Hail2006-04-17: Hail2006-05-26: Hail2006-05-26: Hail2006-06-05: Hail2006-06-06: Hail2006-06-06: Hail2006-06-06: Hail2006-06-06: Hail2006-06-06: Hail2006-07-29: Hail2006-06-12: Hail2006-06-03: Hail2006-06-05: Hail2006-08-05: Hail2007-06-05: Hail2007-06-05: Hail2007-06-05: Hail2007-06-12: Hail2007-06-05: Hail2007-06-05: Hail2007-06-05: Hail2007-06-05: Hail2007-06-16: Hail2008-07-21: Hail2008-06-01: Hail2008-06-01: Hail2008-06-01: Hail2008-06-01: Hail2008-06-01: Hail2008-06-29: Hail2008-06-29: Hail2008-06-29: Hail2008-06-29: Hail2008-05-05: Hail2008-05-05: Hail2008-05-05: Hail2008-05-05: Hail2008-05-05: Hail2008-05-05: Hail2008-05-05: Hail2008-04-21: Hail2008-04-21: Hail2008-04-21: Hail2008-04-21: Hail2008-04-21: Hail2008-03-15: Hail2008-05-20: Hail2008-05-20: Hail2008-05-20: Hail2008-05-10: Hail1955-05-30: Tornado1961-08-01: Tornado1963-01-20: Tornado1963-05-20: Tornado1972-10-24: Tornado1977-06-27: Tornado1978-04-19: Tornado1986-07-02: Tornado1986-03-14: Tornado1986-03-14: Tornado1987-11-10: Tornado1988-06-09: Tornado1989-02-21: Tornado1990-06-29: Tornado1991-08-18: Tornado1991-08-02: Tornado1991-08-02: Tornado1991-08-02: Tornado1996-10-08: Tornado1997-04-21: Tornado1999-10-17: Tornado1999-09-15: Tornado1999-04-15: Tornado2000-03-16: Tornado2000-05-21: Tornado2003-07-02: Tornado2003-07-02: Tornado2003-07-02: Tornado2004-06-22: Tornado2004-08-14: Tornado2004-08-13: Tornado2006-04-17: Tornado2006-07-23: Tornado2006-08-31: Tornado2008-09-25: Tornado2008-05-11: Tornado2008-05-11: Tornado2009-05-07: Tornado2011-04-16: Tornado2013-06-10: Tornado2018-09-15: Tornado2020-04-13: Tornado2023-04-22: Tornado2024-05-24: Tornado2026-03-12: Tornado2026-03-12: Tornado2005-10-07: Flood2007-04-15: Flood2009-08-06: Flood2009-08-12: Flood2009-09-07: Flood2009-11-12: Flood2010-06-25: Flood2010-09-29: Flood2010-09-30: Flood2011-06-29: Flood2011-08-06: Flood2014-09-12: Flood2014-09-13: Flood2016-10-08: Flood2016-09-02: Flood2016-09-02: Flood2017-04-24: Flood2017-07-15: Flood2018-05-31: Flood2018-09-14: Flood2020-05-21: Flood2020-05-29: Flood2020-06-16: Flood2020-06-16: Flood2020-07-13: Flood2020-07-13: Flood2020-11-12: Flood2022-08-21: Flood2023-07-05: Flood2023-08-31: Flood2023-08-31: Flood2023-08-31: Flood2023-08-31: Flood2023-08-31: Flood2023-08-31: Flood2023-07-09: Flood2024-08-08: Flood2025-05-12: Flood2025-05-13: Flood2025-05-13: Flood2025-05-28: Flood2025-05-28: Flood2025-05-28: Flood2025-08-01: Flood2026-05-27: Wind2026-05-11: Wind2026-03-12: Wind2026-03-12: Wind2026-03-12: Wind2026-03-12: Wind2025-06-10: Wind2025-03-16: Wind2024-08-07: Wind2024-08-02: Wind2024-06-06: Wind2024-05-24: Wind2024-05-24: Wind2024-05-24: Wind2024-04-12: Wind2024-04-12: Wind2024-04-12: Wind2024-04-12: Wind2024-04-12: Wind2024-01-09: Wind2024-01-09: Wind2024-01-09: Wind2024-01-09: Wind2024-01-09: Wind2024-01-09: Wind2023-12-17: Wind2023-12-17: Wind2023-08-10: Wind2023-07-19: Wind2023-07-09: Wind2023-07-09: Wind2023-07-09: Wind2023-07-05: Wind2023-06-22: Wind2023-06-22: Wind2023-04-30: Wind2023-04-30: Wind2022-08-01: Wind2022-08-01: Wind2022-07-31: Wind2022-07-31: Wind2022-07-31: Wind2022-07-31: Wind2022-06-17: Wind2022-03-12: Wind2022-03-12: Wind2022-03-12: Wind2022-03-12: Wind2021-05-10: Wind2021-05-10: Wind2020-09-29: Wind2020-04-13: Wind2020-04-13: Wind2019-08-10: Wind2019-08-10: Wind2019-08-10: Wind2019-05-12: Wind2019-05-12: Wind2019-05-12: Wind2019-04-19: Wind2018-06-24: Wind2018-06-11: Wind2017-07-15: Wind2016-07-30: Wind2016-07-19: Wind2016-07-19: Wind2016-07-08: Wind2016-05-03: Wind2015-07-21: Wind2015-07-21: Wind2015-07-21: Wind2015-06-27: Wind2015-06-27: Wind2015-06-26: Wind2015-06-18: Wind2014-06-05: Wind2014-06-05: Wind2014-06-05: Wind2014-04-30: Wind2014-04-30: Wind2014-02-21: Wind2013-11-26: Wind2013-01-31: Wind2012-07-24: Wind2012-07-01: Wind2012-07-01: Wind2012-07-01: Wind2012-07-01: Wind2012-07-01: Wind2012-05-22: Wind2011-07-24: Wind2011-07-24: Wind2011-07-24: Wind2011-07-24: Wind2011-07-24: Wind2011-07-24: Wind2011-07-24: Wind2011-07-23: Wind2011-07-22: Wind2011-06-23: Wind2011-06-17: Wind2011-04-05: Wind2011-04-05: Wind2010-07-18: Wind2010-06-29: Wind2010-06-29: Wind2010-06-16: Wind2010-06-13: Wind2010-05-16: Wind2010-05-16: Wind2009-08-11: Wind2009-07-17: Wind2009-06-26: Wind2009-06-13: Wind2008-06-29: Wind2008-06-29: Wind2008-06-29: Wind2008-06-01: Wind2008-04-12: Wind
Onslow County within North Carolina. 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 29 Sep 2026; NFIP claims as of 8 Sep 2026.

The NCEI record lists 611 events for Onslow County, North Carolina, between 1950 and 2026; damaging wind account for the largest share.

That is 80.2 events per 100 square miles, below the North Carolina figure of 112.5, and 29.6 per 10,000 residents against 51.8 statewide.

9 events fall in the 12 months to 30 Jun 2026. NCEI attributes 12 deaths and 201 injuries to events in the county, with property damage estimated at $674M and crop damage at $62M.

FEMA has designated the county in 30 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 4,432 claims since 1978, of which 3,097 were paid, totalling $71M (about $23K per paid claim). FEMA counts 4,401 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" ($216M a year across 18 hazards).

149 tropical storm or hurricane tracks in the HURDAT2 record passed within 100 miles of the county's centre at tropical-storm strength or more, 17 of them within 50 miles at hurricane strength.

9events, last 12 monthsto 30 Jun 2026
611events since 195012 deaths, 201 injuries recorded
30disaster declarationslast 24 Jan 2026
4,432NFIP flood claims$71M paid

Compared with North Carolina and the United States

MeasureOnslow CountyNorth CarolinaUS
Recorded events since 195061154,6961,977,440
Events per 100 square miles80.2112.556.0
Events per 10,000 residents29.651.859.6
Events in the last 12 months91,43762,008
Deaths recorded by NCEI1262226,435
Property damage (NCEI estimates)$674M$15B$575B
NFIP claims per 1,000 residents21.510.48.1
Average paid NFIP claim$23K$28K$43K
Claims per 100 policies in force, last 10 years23.424.116.1

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: 1
Tornado: 3Wind: 4
Hail: 3Tornado: 3Wind: 6
Hail: 8Tornado: 6Wind: 32
Hail: 29Tornado: 13Flood: 7Wind: 38Winter: 7Tropical: 10Cold: 1Lightning: 1Other: 1
Hail: 105Tornado: 16Flood: 16Wind: 49Winter: 10Tropical: 6Cold: 1Lightning: 1
Hail: 39Tornado: 3Flood: 15Wind: 58Winter: 9Tropical: 10Drought: 3Lightning: 3Other: 2
Hail: 9Tornado: 5Flood: 24Wind: 53Lightning: 1
11950s71960s121970s461980s1071990s2042000s1422010s922020s
Recorded events in Onslow County by decade and hazard group. HailTornadoFloodWindWinterTropicalColdDroughtLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 341 events in the 20 years to 2025 against 222 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

Wind240
Hail193
Flood62
Tornado50
Winter26
Tropical26
Lightning6
Drought3
Other3
Cold2
HazardEventsDeathsShare of state's events
■ Wind240—1.0%detail
■ Hail193—1.9%detail
■ Flood62—1.2%detail
■ Tornado5033.0%detail
■ Winter2630.3%detail
■ Tropical2642.3%
■ Lightning620.7%
■ Drought3—0.2%
■ Other3—0.3%
■ Cold2—0.3%

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
2 Jul 1986TornadoTornadoF2$250K—310County
4 Sep 1996Hurricane (Typhoon)Tropical—$500M—22Forecast zone
16 Apr 2011TornadoTornadoEF3$9.4M——120County
26 Aug 2011Tropical StormTropical—$10M$16M1—Forecast zone
14 Sep 1999Hurricane (Typhoon)Tropical—$13M$8.2M1—Forecast zone
11 Jul 2017LightningLightning———11County
11 Apr 2025LightningLightning———11County
26 Dec 2010Heavy SnowWinter———1—Forecast zone
24 Feb 2015Winter WeatherWinter———1—Forecast zone
3 Jan 2018Winter StormWinter———1—Forecast zone
3 Feb 1996Winter StormWinter—$45K——35Forecast zone
12 Jul 1996Hurricane (Typhoon)Tropical—$73M$30M—10Forecast zone
15 Apr 1999TornadoTornadoF1$2.0M——7County
11 May 2008TornadoTornadoEF2$150K——6County
13 Sep 2018Hurricane (Typhoon)Tropical—$35M———Forecast zone
19 Apr 1978TornadoTornadoF2$250K——3County
9 Jun 1988TornadoTornadoF1$2.5M——2County
16 Dec 2000High WindWind54 mph———2Forecast zone
31 Aug 2006Tropical StormTropical—$500K——1Forecast zone
2 Aug 1991TornadoTornadoF1———1County

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-3637EmergencyWinter StormSevere Winter StormPublic assistance
19 Oct 2024DR-4837Major disasterTropical StormPotential Tropical Cyclone EightPublic assistance
26 Sep 2024EM-3617EmergencyTropical StormHurricane HelenePublic assistance
6 Aug 2024EM-3608EmergencyTropical StormTropical Storm DebbyPublic assistance
1 Oct 2022EM-3586EmergencyHurricaneHurricane IanPublic assistance
14 Oct 2020DR-4568Major disasterHurricaneHurricane IsaiasPublic assistance
2 Aug 2020EM-3534EmergencyHurricaneHurricane IsaiasPublic assistance
25 Mar 2020DR-4487Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3471EmergencyBiologicalCovid-19Public assistance
4 Oct 2019DR-4465Major disasterHurricaneHurricane DorianPublic assistance
3 Sep 2019EM-3423EmergencyHurricaneHurricane DorianPublic assistance
14 Sep 2018DR-4393Major disasterHurricaneHurricane FlorenceIndividual assistance, Public assistance
10 Sep 2018EM-3401EmergencyHurricaneHurricane FlorencePublic assistance
10 Oct 2016DR-4285Major disasterHurricaneHurricane MatthewIndividual assistance, Public assistance
7 Oct 2016EM-3380EmergencyHurricaneHurricane MatthewPublic assistance
31 Aug 2011DR-4019Major disasterHurricaneHurricane IreneIndividual assistance, Public assistance
25 Aug 2011EM-3327EmergencyHurricaneHurricane IrenePublic assistance
19 Apr 2011DR-1969Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance, Public assistance
14 Oct 2010DR-1942Major disasterSevere StormSevere Storms, Flooding, And Straight-Line WindsIndividual assistance
1 Sep 2010EM-3314EmergencyHurricaneHurricane EarlPublic assistance
7 Oct 2005DR-1608Major disasterHurricaneHurricane OpheliaPublic assistance
14 Sep 2005EM-3254EmergencyHurricaneHurricane OpheliaPublic assistance
5 Sep 2005EM-3222EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
18 Sep 2003DR-1490Major disasterHurricaneHurricane IsabelIndividual assistance, Public assistance
16 Sep 1999DR-1292Major disasterHurricaneHurricane Floyd Major Disaster DeclarationsIndividual assistance, Public assistance
15 Sep 1999EM-3146EmergencyHurricaneHurricane Floyd Emergency DeclarationsPublic assistance
1 Sep 1999EM-3141EmergencyHurricaneHurricane DennisPublic assistance
27 Aug 1998DR-1240Major disasterHurricaneHurricane BonnieIndividual assistance, Public assistance
6 Sep 1996DR-1134Major disasterHurricaneHurricane FranIndividual assistance, Public assistance
18 Jul 1996DR-1127Major disasterHurricaneHurricane BerthaIndividual 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 Onslow County, 1978 to 2026 (hover for the amount paid).
Claims since 19784,432
Paid claims3,097
Total paid$71M
Average paid claim$23K
Repetitive-loss properties48469 severe
Residential policies in force4,4016.3% of 69,807 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202530$0—
202474$45,220$11,305
20231310$341,207$34,121
202263$56,627$18,876
202121$15,869$15,869
2020148$99,192$12,399
201941$2,439$2,439
2018978739$30,736,707$41,592
201710$0—
20163721$325,019$15,477
20153716$327,023$20,439
20143733$714,995$21,667
201331$3,990$3,990
20123124$334,543$13,939
20115824$749,152$31,215
20106651$1,233,367$24,184
2009108$168,269$21,034
20081110$929,939$92,994
20071313$384,575$29,583
20062218$505,226$28,068
2005214139$3,912,927$28,151
2004181$16,898$16,898
2003185$38,186$7,637
20023619$87,461$4,603
20013123$145,738$6,336

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 95.0 of 100
Expected annual loss$216MRelatively High
Social vulnerabilityVery Low
Community resilienceRelatively Moderate
Hazard (NRI)Risk ratingExpected annual loss
HurricaneVery High$170,613,391
Inland floodingRelatively Moderate$22,776,825
TornadoRelatively Moderate$6,866,464
Heat waveRelatively Moderate$3,109,836
Coastal floodingRelatively Moderate$2,820,443
Winter weatherVery High$1,791,921
Cold waveRelatively Low$1,779,005
LightningRelatively High$1,777,135
Strong windRelatively Moderate$1,678,105
WildfireRelatively Low$967,906
EarthquakeRelatively Low$833,699
Ice stormRelatively Moderate$394,119
HailRelatively Low$266,042
DroughtRelatively Low$48,183
LandslideVery Low$742

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 miles149
Tracks within 50 miles59
Hurricane strength within 50 miles17
StormYearClosest approachMax wind while within 100 mi
Idalia202379 mi63 mph
Ophelia202323 mi69 mph
Claudette202192 mi46 mph
Elsa202199 mi52 mph
Arthur202094 mi52 mph
Isaias202038 mi92 mph
Dorian201957 mi104 mph
Nestor201994 mi46 mph
Florence201842 mi104 mph
Hermine201619 mi63 mph
Matthew201661 mi81 mph
Ana201595 mi46 mph
Arthur201451 mi98 mph
Andrea201369 mi46 mph
Beryl201229 mi46 mph
Irene201151 mi86 mph
Cristobal200865 mi52 mph
Hanna200873 mi69 mph
Barry200790 mi46 mph
Gabrielle200762 mi58 mph
Alberto200651 mi40 mph
Ernesto200634 mi69 mph
Ophelia200552 mi86 mph
Alex200474 mi98 mph
Charley200439 mi75 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 Onslow County, NC?

NCEI records 193 hail events in Onslow County since 1950, in 37 different years; that is about 2.5 recorded events a year. 23 reports were golf-ball size (1.75 in) or larger.

Has Onslow County had a tornado?

Yes. NCEI records 50 tornadoes in Onslow County since 1950, 5 of them rated (E)F2 or stronger. Tornado deaths recorded: 3.

When was the last federal disaster declaration for Onslow County?

24 Jan 2026: Severe Winter Storm, a emergency declaration for winter storm. The county appears in 30 declarations since 1953.

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

4,432 NFIP claims since 1978, 3,097 of them paid, for $71M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Onslow 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 Moderate" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Onslow County compare with the rest of North Carolina?

80.2 recorded events per 100 square miles against 112.5 statewide, and 21.5 NFIP claims per 1,000 residents against 10.4. 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 29 Sep 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 30 Sep 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.