South Carolinians can expect dangerously hot conditions and soaring humidity over the next several days as a relentless August heatwave positions the state for its highest temperatures of the summer.
South Carolina ETV and Public Radio Chief Meteorologist Tim Miller says an intense upper-level high-pressure ridge to our West is trapping thick, humid air across the region forcing Heat Advisories and Extreme Heat Watches across multiple counties.
The Lowcountry is the bullseye for the most dangerous conditions. Feels-like temperatures are forecasted to hit 110°F to 116°F. The worst of the heat arrives on Thursday and Friday.
The extreme heat is not limited to the coast. Across the Midlands, Pee Dee and Grand Strand, temperatures will soar into the upper 90s and low 100s. High humidity will push the heat index up to 110°F through Friday.
In the Upstate and Piedmont, temperatures will climb into the mid-to-upper 90s, with a heat index reaching between 98°F and 105°F through the weekend.
The big question is how long will it last?
This sweltering weather pattern is expected to last through early next week. Furthermore, overnight temperatures will remain oppressive—only dropping into the upper 70s and low 80s—which prevents homes and bodies from properly cooling down at night.
While daily pop-up thunderstorms are likely across the state, they will offer minimal relief. The rain chance will remain 20% - 30% over the next several days. Any storms that do pop-up, have the potential to have damaging winds, frequent lightning, small hail and heavy rain.
Heat is a cumulative stress that becomes more hazardous — even deadly — the longer it lasts. Some tips to stay safe are:
- Drink plenty of water and replenish electrolytes, do not wait until you are thirsty.
- Limit outdoor activities, heavy yard work or sports to the early morning or late evening.
- Spend time in air-conditioned environments and take frequent rests in the shade if working outdoors.
- Check in on the elderly, outdoor workers and those without functioning air conditioning.
The most up-to-date weather information can be found online at South Carolina ETV and Public Radio.