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FloodSC

South Carolina Flood Hazard Profile

Climate-Adjusted Hazard Data · Model Version 1.0

Overview

South Carolina faces flood hazard from coastal storm surge, tropical rainfall, and inland riverine flooding. The October 2015 flood event demonstrated the state's vulnerability to extreme precipitation unrelated to tropical cyclones. Low-lying Lowcountry geography amplifies both tidal and rainfall-driven flooding.

Notable Historical Events

12015 South Carolina Floods — 1,000-year rainfall event, 19 fatalities (FEMA DR-4241)
22016 Hurricane Matthew — flooding along Waccamaw and Pee Dee rivers
32018 Hurricane Florence — inland flooding in northeastern SC

Hazard Scoring Approach

CivilSense computes a Climate-Adjusted Hazard Score (0–10) for flood hazard at any US address. The score is composed of weighted sub-components derived from federal data sources and peer-reviewed research. All score components are transparent and returned in API responses.

These are hazard scores — physical intensity likelihood only. They do not include property exposure or vulnerability data. We never call a hazard score a risk score. See the full methodology for scoring details.

Analyze Your Address

Enter any South Carolina address to see location-specific flood hazard scoring with full methodology transparency.

Open Live Map — South Carolina

Data Sources

FEMA National Flood Hazard Layerwww.fema.gov
NOAA AHPS River Gaugeswater.weather.gov
SC Department of Natural Resourceswww.dnr.sc.gov

Related

South Carolina HurricaneFlood Methodology

Climate-Adjusted Hazard Score — derived from peer-reviewed sources listed above. Property exposure data not included. Not a substitute for professional actuarial assessment. For situational awareness only — not for emergency response.

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For situational awareness only — not for emergency response.

Data: USGS · NOAA · FEMA · NASA FIRMS · GDELT