Special Marine Warning Issued for Charleston Harbor and Coastal SC Waters
This alert is no longer in effect.
NOAA issued it on August 13, 2026, 10 days ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Charleston SC has issued a Special Marine Warning for Charleston Harbor and coastal waters from South Santee River to Edisto Beach SC out 20 NM until 9:45 PM EDT due to a strong thunderstorm with 40-knot wind gusts.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Charleston Harbor and coastal South Carolina
- Issued
- August 13, 2026
- Issuing authority
- NWS Charleston SC
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: historical. It was issued 10 days ago; use the issuing agency's live warning service for current conditions in Charleston Harbor and coastal South Carolina.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in Charleston SC. The alert is effective from 7:45 PM EDT on August 13, 2026, until 9:45 PM EDT on August 13, 2026.
Affected Areas
Charleston Harbor and coastal waters from South Santee River to Edisto Beach SC out 20 NM. Locations impacted include Charleston Nearshore Reef, Rattlesnake Shoal, Air Force Reef, Charleston Coastal Anglers, Joe Shuford Reef, Charleston Sixty, Capers Reef, Charleston Harbor Entrance, Crab Bank, Castle Pinkney, Lowcountry Anglers and Wappoo Cut.
What You Should Do
Move to safe harbor until hazardous weather passes. Report severe weather to the Coast Guard or nearest law enforcement agency.
Expected Conditions
At 7:45 PM EDT, a strong thunderstorm was located over Wappoo Cut, moving east at 20 knots. Hazard includes wind gusts to 40 knots. Small craft could be damaged in briefly higher winds and suddenly higher waves.
Timeline
The warning is in effect from 7:45 PM EDT until 9:45 PM EDT on August 13, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,051 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 13, 2026.
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