Extreme Heat Warning: Coastal Bryan; Coastal Chatham; Coastal Liberty; Inland McIntosh; Coastal McIntosh; Inland Berkeley; Beaufort; Coastal Colleton; Charleston; Coastal Jasper; Tidal Berkeley

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Extreme Heat Warning — Coastal Bryan; Coastal Chatham; Coastal Liberty; Inland McIntosh; Coastal McIntosh; Inland Berkeley; Beaufort; Coastal Colleton; Charleston; Coastal Jasper; Tidal Berkeley Severity: Severe. Certainty: Likely. * WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 to 115 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 113 to 117 possible. * WHERE...Portions of southeast Georgia and southeast South Carolina. * WHEN...For the Extreme Heat Warning, from 11 AM this morning to 8 PM EDT this evening. For the Extreme Heat Watch, from Tuesday morning through Tuesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Isolated showers and thunderstorms during afternoon hours could provide relief in some areas.