Special Marine Warning Issued for Charleston Harbor Area
This alert is no longer in effect.
NOAA issued it on July 22, 2026, 4 weeks 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 until 7:00 PM EDT due to a strong thunderstorm producing wind gusts to 34 knots.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Coastal South Carolina
- Issued
- July 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: historical. It was issued 4 weeks ago; use the issuing agency's live warning service for current conditions in 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 6:07 PM EDT to 7:00 PM EDT on June 18, 2026.
Affected Areas
The warning covers Charleston Harbor and coastal waters from South Santee River to Edisto Beach SC out 20 NM.
What You Should Do
Move to safe harbor until hazardous weather passes.
Expected Conditions
A strong thunderstorm was located near Stono Inshore Reef, moving northeast at 30 knots. Radar indicated wind gusts to 34 knots, which could damage small craft in briefly higher winds and suddenly higher waves.
Timeline
The alert is in effect from 6:07 PM EDT until 7:00 PM EDT on June 18, 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 (708 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 22, 2026.
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