Special Marine Warning Issued for Charleston Harbor and Coastal Waters
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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 8:15 PM EDT.
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- Record type
- Special Marine Warning
- Affected area
- Charleston Harbor, South Carolina
- Issued
- August 22, 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: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in Charleston SC. The alert is effective from August 22, 2026 at 6:21 PM EDT until August 22, 2026 at 8:15 PM EDT.
Affected Areas
The warning covers 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, Capers Island Buoy, Charleston Harbor Entrance, Crab Bank, Capers Reef, Castle Pinkney, Wappoo Cut, Lowcountry Anglers, Bull Breakers and Jimmy Leland Tug.
What You Should Do
Move to safe harbor until hazardous weather passes.
Expected Conditions
At 6:21 PM EDT, a strong thunderstorm was located 8 NM north of Wappoo Cut, moving east at 20 knots. Radar indicated wind gusts to 34 knots. Small craft could be damaged in briefly higher winds and suddenly higher waves.
Timeline
The alert is in effect from 6:21 PM EDT to 8:15 PM EDT on August 22, 2026.
Original source: NOAA Official Notice ↗
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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 (1,014 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 22, 2026.
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