Heat advisory issued for Lowcountry until Sunday evening

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On Sunday at 2:10 a.m. a heat advisory was issued by the NWS Charleston SC valid between 11 a.m. and 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 between 108 to 110 expected."

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

This advisory is in effect until 7 p.m.

Protect yourself during a heat wave with these tips from the NWS

• Stay hydrated: Drink plenty of fluids.
• Seek cool shelter: Opt for an air-conditioned room to stay comfortable.
• Stay out of the sun, and check up on relatives and neighbors.
• Ensure child and pet safety: Take every precaution to never leave young children and pets alone in vehicles, especially in extreme heat when car interiors can quickly become hazardous.
• Be cautious outdoors: Take extra precautions if you work or spend time outside.
• Find the right time: Consider rescheduling strenuous activities to early morning or evening if possible.
• Recognize warning signs: Familiarize yourself with symptoms of heat exhaustion and heat stroke.
• Dress for comfort: Wear lightweight and loose-fitting clothing to stay cool.

To reduce risk during outdoor work, the Occupational Safety and Health Administration (OSHA) recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. In an emergency, call 911.

Source: The National Weather Service

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This story was originally published July 5, 2026 at 2:15 AM.