Skip to contentCALCHIS
HurricaneSC

South Carolina Hurricane Hazard Profile

Hazard Data · Model Version 2.5

Overview

South Carolina's Atlantic coastline is exposed to hurricane wind and storm surge hazard, with the Charleston and Myrtle Beach metro areas representing the primary exposure concentrations. IBTrACS data shows South Carolina receives direct hurricane landfalls and is frequently affected by storms tracking along the Southeast coast. NOAA SLOSH models indicate significant storm surge potential in the low-lying Charleston harbor.

In the Historical Record

24
federal disaster declarations (1954–2024)
FEMA OpenFEMA Disaster Declarations
534
Tropical storm and surge events recorded
NOAA NCEI Storm Events, 1996–present

Counted from the records this platform holds. A figure is shown only where the underlying dataset could be read.

County by County in South Carolina

What federal records show has happened in each county: storms, disaster declarations and flood insurance claims. The counties below have the longest NOAA storm records in South Carolina.

All South Carolina counties

Notable Historical Events

12018 Hurricane Florence — flooding extended into SC border counties
22016 Hurricane Matthew — 15 fatalities, significant coastal flooding (FEMA DR-4286)
31989 Hurricane Hugo — CAT 4 at Charleston, $7B+ total damage (FEMA DR-843)

Hazard Scoring Approach

Calchis computes a Calchis Hazard Score (0–10) for hurricane hazard at any US address. The score is composed of weighted sub-components derived from federal data sources and published 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 hurricane hazard scoring with full methodology transparency.

Open Live Map — South Carolina

Data Sources

NOAA National Hurricane Centerwww.nhc.noaa.gov
IBTrACS Best Track Datawww.ncei.noaa.gov

Related

Monitoring hurricane exposure in South Carolina?

This page is a state-level profile. Calchis scores individual addresses, tracks live hurricane events against your own locations, and alerts you when one approaches them.

Free includes Live map + 3 triggers + 10 bond positions. Analyst is $149/mo for 1,000-location portfolios, ep curves, predictions, parametric triggers.

Calchis Hazard Score — derived from federal and academic sources listed above. Property exposure data not included. Not a substitute for professional actuarial assessment. Decision-support intelligence — not a primary alerting or dispatch system. Verify against official sources.