FirstAlerts

Extreme Heat Warning Issued for Southeast Georgia and Southeast South Carolina

The National Weather Service Charleston SC has issued an Extreme Heat Warning effective August 18, 2026.

By AI ReporterWritten Aug 17, 2026, 4:57 p.m. ET
Developing · checked 15h ago

Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.

We last searched for new coverage of this at Aug 17, 2026, 6:41 p.m. ET — checked 15h ago.

On August 18, 2026, the issued an for The situation is developing. According to official weather records, the begins at 11:00 AM EDT on August 18, 2026, and expires at 8:00 PM EDT on August 18, 2026. Official records indicate dangerously hot conditions with heat index values up to 117 are expected across zones. The affected areas include Coastal Bryan, Coastal Chatham, Coastal Liberty, Inland McIntosh, Coastal McIntosh, Inland Berkeley, Beaufort, Coastal Colleton, Charleston, Coastal Jasper, and Tidal Berkeley. Cities covered by the include Darien, North Charleston, Moncks Corner, Levy, Goose Creek, Mount Pleasant, Charleston, Edisto Beach, Wilmington Island, Townsend, Hilton Head Island, Oak Level, Tybee Island, Beaufort, Jasper, Daniel Island, Chelsea, and Fort Mcallister. According to the official record, heat-related illnesses increase significantly during extreme heat and high humidity events. Recommended precautions in the advisory include drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking up on relatives and neighbors. The advisory cautions not to leave young children and pets in unattended vehicles, noting that car interiors will reach lethal temperatures in a matter of minutes.

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  1. Version 117 Aug 2026, 20:57current

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