What is the flood risk in 27601 Raleigh?

The flood hazard score for 27601 is 1.9/10 (LOW). This score is derived from FEMA flood zones, elevation data, and NFIP claim density.

Is 27601 in a hurricane zone?

Yes, Raleigh (27601) is in a hurricane-prone area. The hurricane hazard score is 3.0/10.

What natural disasters affect Raleigh, North Carolina?

The primary natural hazards for Raleigh (27601) are hurricane, flood. Calchis provides hazard scores for each peril using data from USGS, NOAA, and FEMA.

Raleigh, North Carolina 27601

Wake County · North Carolina

35.7796° N, 78.6382° W

Calchis Hazard Scores

◉Hail

6.7/10HIGH

Hail events per 10,000 km2 per year, observed within ~83km (33.53)3.4 / 5.0

Regional roof vulnerability proxy (pre-ATTOM)2.0 / 5.0

Model v2.5 · Hazard score

△Wildfire

5.2/10MODERATE

Large fire frequency (Southern US region, 10,000+ acres)1.0 / 3.5

Wildland-Urban Interface exposure, measured development/wildland mixture (0.761)2.7 / 3.5

Regional vegetation/fuel load proxy (unsourced constant)1.0 / 3.0

Model v2.5 · Hazard score

◠Tornado

4.1/10MODERATE

Tornado events per 10,000 km2 per year, observed within ~83km (2.46)2.0 / 5.0

Manufactured housing density proxy2.5 / 3.0

Nocturnal tornado fraction (fatality multiplier)2.0 / 2.0

Model v2.5 · Hazard score

◎Hurricane

3.0/10LOW

CAT3+ landfall return period, Southeast-Atlantic segment (10.7 yr, NOAA HRD 1950-2024)3.0 / 3.5

Distance to coastline0.0 / 3.0

Storm surge exposure (elevation + coastal proximity)0.0 / 3.5

Model v2.5 · Hazard score

●Winter Storm

2.8/10LOW

Winter events per forecast zone per year (2.2418)1.9 / 5.0

Ice storm and blizzard share of winter events (5.6%)0.9 / 5.0

Model v2.5 · Hazard score

≋Flood

1.9/10LOW

FEMA flood zone (X)0.3 / 4.0

Elevation above base flood level (estimated)1.0 / 3.0

Federal disaster declarations (8 in NC since 1953 · ~1 per 9.1yr)0.6 / 3.0

Model v2.5 · Hazard score

⊕Earthquake

0.5/10LOW

Seismic source zone activity (Gutenberg-Richter, Eastern US zone aggregate M5+ rate)0.0 / 3.5

The Eastern US source zone's shipped Gutenberg-Richter rate produces about 0.0003 independent M5+ earthquakes a year against 8 observed in the 1980–2024 catalogue (0.178 a year), so this component reads far too low across the twelve states in the zone — including the Charleston seismic zone. Treat a low earthquake hazard score here as unmeasured, not as a finding of low hazard.

Proximity to mapped Quaternary faults0.3 / 3.0

Historical damage potential (Hazus W1 thresholds)2.9 / 3.5

Model v2.5 · Hazard score

Natural Hazards in Raleigh

Based on historical data and geographic analysis, the primary natural hazards affecting Raleigh, North Carolina (27601) are hurricane and flood. These scores are derived from federal and academic sources.

Get Your Exact Address Report

ZIP-level scores provide a general overview. For address-specific hazard analysis with consequence ring exposure, active event monitoring, and full score component breakdown — use the Calchis workbench.

Analyze Your Address — Free

North Carolina Hazard Profiles

North Carolina Hurricane North Carolina Flood

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