FirstAlerts
Severe Weather

Extreme Heat Warning Extended Through 8 PM EDT Monday for Southeast Georgia and South Carolina

The National Weather Service Charleston SC has extended heat warnings with heat index values expected between 108 and 111 degrees.

4 reports on this incident · first at Aug 16, 2026, 2:25 p.m. ET

By AI ReporterWritten Aug 16, 2026, 3:05 p.m. ET
Developing

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

According to official weather records from the , an for portions of southeast Georgia and southeast South Carolina runs from AM to 8 PM EDT Monday, August 17, 2026. The alert window extends longer than first issued, following a Heat Advisory in effect until 8 PM EDT Sunday evening.\n\nThe covers zones, including Coastal Bryan, Coastal Chatham, Coastal Liberty, Inland McIntosh, Coastal McIntosh, Inland Berkeley, Beaufort, Coastal Colleton, Charleston, Coastal Jasper, and Tidal Berkeley. Affected cities include Charleston, Mount Pleasant, Chelsea, Hilton Head Island, Oak Level, Darien, Edisto Beach, Jasper, Wilmington Island, Moncks Corner, Goose Creek, North Charleston, Fort Mcallister, Levy, Beaufort, Townsend, Daniel Island, and Tybee Island. Heat index values of 108 to 111 degrees are expected.\n\nWeather service records note that heat-related illnesses increase significantly during extreme heat and high humidity events. Authorities advise drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking up on relatives and neighbors. Official records also state that car interiors reach lethal temperatures in a matter of minutes, against leaving young children and pets in unattended vehicles.

Earlier reports

  1. Aug 16, 2026, 2:59 p.m. ET

    National Weather Service Upgrades Heat Alert to Extreme Heat Warning for Parts of Georgia and South Carolina

    The National Weather Service Charleston SC has upgraded the heat alert for portions of southeast Georgia and southeast South Carolina to an Extreme Heat Warning for Monday, August 17, 2026. According to National Weather Service records, a Heat Advisory remains in effect until 8 PM EDT this evening, while the Extreme Heat Warning starts at 11 AM EDT on Monday and expires at 8 PM EDT that evening. Heat index values are expected to reach between 108 and 111 degrees. Official records list 11 affected zones: Coastal Bryan, Coastal Chatham, Coastal Liberty, Inland McIntosh, Coastal McIntosh, Inland Berkeley, Beaufort, Coastal Colleton, Charleston, Coastal Jasper, and Tidal Berkeley. The warning covers cities including Charleston, Mount Pleasant, Chelsea, Hilton Head Island, Oak Level, Darien, Edisto Beach, Jasper, Wilmington Island, Moncks Corner, Goose Creek, North Charleston, Fort Mcallister, Levy, Beaufort, Townsend, Daniel Island, and Tybee Island. National Weather Service records note that hot temperatures and high humidity cause heat illnesses, which increase significantly during extreme heat events. The record advises people to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check on relatives and neighbors. It also warns not to leave young children and pets in unattended vehicles, where car interiors can reach lethal temperatures in minutes.

  2. Aug 16, 2026, 2:55 p.m. ET

    National Weather Service Warns Heat-Related Illnesses Will Increase Significantly Under Severe Heat

    According to official National Weather Service records, heat-related illnesses increase significantly during extreme heat and high humidity events, and hot temperatures combined with high humidity may cause heat illnesses. The National Weather Service Charleston SC issued the warning for portions of southeast Georgia and southeast South Carolina. The Extreme Heat Warning begins at 11 AM EDT on Monday, August 17, 2026, and expires at 8 PM EDT on Monday, August 17, 2026. Heat index values of 108 to 111 degrees are expected across 11 zones, covering Coastal Bryan, Coastal Chatham, Coastal Liberty, Inland McIntosh, Coastal McIntosh, Inland Berkeley, Beaufort, Coastal Colleton, Charleston, Coastal Jasper, and Tidal Berkeley. Affected cities include Charleston, Mount Pleasant, Chelsea, Hilton Head Island, Oak Level, Darien, Edisto Beach, Jasper, Wilmington Island, Moncks Corner, Goose Creek, North Charleston, Fort Mcallister, Levy, Beaufort, Townsend, Daniel Island, and Tybee Island. Weather service records advise drinking plenty of fluids, staying in air-conditioned rooms, staying out of the sun, and checking on relatives and neighbors. Official guidance adds that young children and pets must not be left in unattended vehicles, as car interiors will reach lethal temperatures in a matter of minutes.

  3. Aug 16, 2026, 2:25 p.m. ETFirst report

    Extreme Heat Warning Issued for Portions of Southeast Georgia and South Carolina

    In a developing situation, official records from the National Weather Service Charleston SC show an Extreme Heat Warning has been issued for portions of southeast Georgia and southeast South Carolina on August 17, 2026. The warning starts at 11 AM EDT on August 17, 2026, and expires at 8 PM EDT on August 17, 2026. A Heat Advisory is also in effect until 8 PM EDT this evening.

    Heat index values of 108 to 111 degrees are expected across 11 zones, which include Coastal Bryan, Coastal Chatham, Coastal Liberty, Inland McIntosh, Coastal McIntosh, Inland Berkeley, Beaufort, Coastal Colleton, Charleston, Coastal Jasper, and Tidal Berkeley. Affected locations include Charleston, Mount Pleasant, Chelsea, Hilton Head Island, Oak Level, Darien, Edisto Beach, Jasper, Wilmington Island, Moncks Corner, Goose Creek, North Charleston, Fort Mcallister, Levy, Beaufort, Townsend, Daniel Island, and Tybee Island.

    Official weather statements warn that heat-related illnesses increase significantly during extreme heat and high humidity events. Recommended precautions include drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking up on relatives and neighbors. The warning notes that young children and pets must not be left in unattended vehicles, as car interiors will reach lethal temperatures in a matter of minutes.

Was this report accurate and useful?

Sources

Revision history

  1. Version 116 Aug 2026, 19:05current

    First published.

  2. Version 116 Aug 2026, 18:55current

    First published.

  3. Version 116 Aug 2026, 18:25current

    First published.

  4. Version 116 Aug 2026, 18:59current

    First published.

How we work

This site models an investigative reporter rather than a wire desk. The aim is the most complete, accurate and timely account we can assemble — all three, not a trade between them. Reports go out within minutes of the coverage they are built from, carrying context a newsroom would otherwise need a day and a records request to gather: what has happened at this place before, what the operator’s record is, which aircraft it actually was.

Reports are built from primary sources — accident and court records, official registries, weather observations, agency statements — and from reputable news organisations, each named where their reporting is used. Facts are extracted before anything is written, and every one must be supported by a quotation found in the source itself; the model that writes the report is given only those verified facts and never sees the article, so it cannot introduce a detail no source stated.

Where sources disagree we publish the disagreement, attributed, rather than picking a figure. Where a fact comes from a record rather than a reporter, we say so, and the language matches: an instrument reading is never described as something anyone confirmed. Some things are deliberately withheld — a suspect is not named until an agency names them on the record, victims until families or officials release them — and corrections appear as visible revisions, never as silent edits.

None of that makes a report true. A quotation check proves a source said something, not that it was right, and an automated system can be confidently wrong in ways the checks do not catch. If something here is wrong, the feedback above is how it gets found. The full methodology, including what we refuse to publish.