UPDATE: Heat advisory affecting Lowcountry until Sunday evening

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An updated heat advisory was released by the NWS Charleston SC on Sunday at 1:42 p.m. in effect until 7 p.m. The advisory is for Inland Berkeley, Coastal Colleton, Coastal Jasper and Tidal Berkeley as well as Beaufort and Charleston counties.

The NWS informs, "Heat index values up to 112 degrees expected."

"Hot temperatures and high humidity may cause heat illnesses," says the NWS.

This advisory is in effect until 7 p.m.

During heat waves, consider the following tips from the NWS

• Stay hydrated: Drink plenty of fluids.
• Find cool shelter: Stay in an air-conditioned room.
• Check on others: Stay out of the sun, and make sure to check up on relatives and neighbors.
• Ensure child and pet safety: Do not leave young children and pets unattended in vehicles when car interiors can reach lethal temperatures in a matter of minutes.
• Take extra precautions outdoors: If you work or spend time outside, be sure to take additional safety measures.
• Optimal Timing: When possible, reschedule strenuous activities to early morning or evening.
• Familiarize yourself with warning signs: Know the symptoms of heat exhaustion and heat stroke.
• Stay cool with clothing: Wear lightweight and loose-fitting clothing.

For a safer outdoor work environment, follow the Occupational Safety and Health Administration (OSHA)'s guidance by scheduling regular rest breaks in shaded or air-conditioned places. If anyone shows signs of heat illness, promptly move them to a cool, shaded area. In an emergency, call 911.

Source: The National Weather Service

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This story was originally published July 12, 2026 at 1:44 PM.