A massive heat dome is set to envelop South Carolina, bringing temperatures into the triple digits starting Friday, July 3, 2026, and lingering into the coming week. The National Weather Service (NWS) has issued dire warnings regarding the heat wave, which is expected to affect over 75 million Americans.
Heat Dome Expected to Break Records
The NWS has warned that the heat dome will bring temperatures 10-20 °F above average, with highs reaching the mid-to-upper 90s and numerous locations exceeding 100 degrees. The agency has also warned that several all-time heat records are likely to be broken across the Eastern U.S. this weekend.
Officials with the S.C. Emergency Management Division are urging South Carolinians to stay indoors as much as possible and to stay hydrated wherever they go. The NWS has also advised people to stay cool and to have a cooling plan in place.
The heat dome is expected to have significant impacts on the state, including deteriorating pavement, warping railway tracks, and straining the electrical grid. The heat is also expected to have adverse impacts on crop production, leading to a smaller supply and/or increased cost to farmers and consumers.
To track the status of the heat dome’s impact, the NWS has a heat risk map available. The public is advised to stay up to speed on the latest weather conditions from their local NWS branch.
Original reporting: FITSNews — read the source article.
