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

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Extreme Heat Watch — Coastal Bryan; Inland Chatham; Coastal Chatham; Coastal Liberty; Inland McIntosh; Coastal McIntosh; Beaufort; Coastal Colleton; Charleston; Coastal Jasper; Tidal Berkeley Severity: Severe. Certainty: Likely. * WHAT...For the Heat Advisory, heat index values up to 110 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 115 possible. * WHERE...Portions of southeast Georgia and southeast South Carolina. * WHEN...For the Heat Advisory, from 11 AM this morning to 8 PM EDT this evening. For the Extreme Heat Watch, from Thursday morning through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.