A dangerous heatwave is expected to grip the Carolinas and Mid-Atlantic regions through next week, with dangerously high heat index values surpassing 105°F. Cities like Raleigh, Columbia, and Washington, D.C. will see very little overnight relief, making the heat even more intense and challenging.
Intensified Heat Following Midweek Storms
After some scattered thunderstorms in the middle of the week, a strong dome of high pressure will build over the region, ramping up both heat and humidity.
According to the National Weather Service and the Weather Prediction Center, a Flood Watch will remain in effect for parts of Maryland, including Colmar Manor, until 8 p.m. Wednesday.
Following this, the region will experience a rapid transition to extreme heat, with daily highs reaching the upper 90s to near 100°F from Friday through Tuesday. Afternoon heat index values are expected to soar well into the triple digits, creating dangerously hot conditions.
Impact Across the Region
In Columbia, SC, temperatures will climb between 94°F and 99°F, with very little cooling during the night, putting outdoor workers and vulnerable groups at risk for heat stress.
Similarly, Valleyview, OH will see scattered storms on Wednesday, but extreme heat conditions will develop by the weekend, with highs reaching 95°F. In Raleigh, NC, the heat index is expected to peak at 105°F by Juneteenth, with high temperatures of 95°F to 99°F continuing into the middle of next week.
Precautionary Measures and Safety Tips
Residents across these regions are urged to take precautions during this dangerous heatwave. It’s vital to limit outdoor activities, stay well-hydrated, and check on vulnerable individuals such as seniors and children. Cooling centers may be set up in some areas to provide relief from the extreme heat.
No Immediate Relief in Sight
With extreme heat warnings possible through late next week and minimal overnight cooling, it’s important to stay alert to updates from local emergency managers and the National Weather Service.
The ongoing heatwave is expected to continue until relief is provided by a change in weather conditions later in the month.
