Wilmington, North Carolina 28401
New Hanover County · North Carolina
34.2257° N, 77.9447° W
Calchis Hazard Scores
◎Hurricane
5.9/10MODERATE
CAT3+ landfall return period, Southeast-Atlantic segment (10.7 yr, NOAA HRD 1950-2024)3.0 / 3.5
Distance to coastline (6 km)2.9 / 3.0
Storm surge exposure (elevation + coastal proximity)0.0 / 3.5
Model v4.2 · Hazard score
⊕Earthquake
4.1/10MODERATE
USGS 2023 NSHM ground motion: 0.116 g peak ground acceleration with a 2% chance of exceedance in 50 years (site class BC)4.1 / 10.0
Historical damage potential (Hazus W1 thresholds)2.9 / 3.5
Model v4.2 · Hazard score
◉Hail
3.2/10LOW
Significant hail days per year within 80 km, NEXRAD radar (6.8; full scale 21.15, the 99th percentile of US cells; NEXRAD 2005–2024)1.6 / 5.0
Regional roof vulnerability proxy (pre-ATTOM)2.0 / 5.0
Model v4.2 · Hazard score
△Wildfire
3.1/10LOW
Wildfires of 1,000+ acres per 10,000 km2 per year within ~83km (0.212; full scale 3.232, the 99th percentile of US cells; MTBS 1984–2024)0.2 / 3.5
Wildland-Urban Interface exposure: 56% of homes directly or indirectly exposed to wildfire, county average (USDA Forest Service, Wildfire Risk to Communities)2.0 / 3.5
Regional vegetation/fuel load proxy (unsourced constant)1.0 / 3.0
Model v4.2 · Hazard score
≋Flood
2.8/10LOW
FEMA flood zone (X)0.3 / 4.0
Elevation above base flood level (estimated)1.0 / 3.0
NFIP flood claims per 1,000 homes per year in the county (2.106; 11,244 claims, NFIP 1978–2024; full scale 4.132, the 99th percentile of US counties)1.5 / 3.0
Model v4.2 · Hazard score
●Winter Storm
2.8/10LOW
Winter events per forecast zone per year, state average (2.2418)1.9 / 5.0
Ice storm and blizzard share of winter events (5.6%)0.9 / 5.0
Model v4.2 · Hazard score
◠Tornado
1.1/10LOW
Significant (EF2+) tornadoes per 10,000 km2 per year within ~83km (0.116; full scale 1.056, the 99th percentile of US cells; SPC 1980–2024)0.6 / 5.0
Manufactured housing density proxy2.5 / 3.0
Nocturnal tornado fraction (fatality multiplier)2.0 / 2.0
Model v4.2 · Hazard score
Natural Hazards in Wilmington
Based on historical data and geographic analysis, the primary natural hazards affecting Wilmington, North Carolina (28401) are hurricane and flood. These scores are derived from federal and academic sources.
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North Carolina Hazard Profiles
Nearby Areas
Data Sources
USGS Earthquake Hazards.gov
NOAA National Hurricane Center.gov
FEMA Flood Map Service.gov
NIFC Active Fire Data.gov
NOAA Storm Prediction Center.gov
NOAA Storm Events Database.gov