Atlanta, GA – A prolonged and potentially record-breaking heat wave is expected to grip much of the Southeast and south-central United States this week, with heat indices potentially reaching 105 to 115 degrees and dangerous conditions continuing into next week.
According to the NOAA Weather Prediction Center, well-above-normal temperatures are forecast across the Southeast beginning this week and lasting through at least mid-August. Afternoon highs could climb into the upper 90s to around 100 degrees, with high humidity making conditions feel considerably hotter.
Forecasters expect widespread Major to Extreme HeatRisk conditions from portions of Texas and Oklahoma through the Lower Mississippi Valley and Southeast. Cities including Dallas, New Orleans, Nashville, Atlanta and Jacksonville are among areas shown within significant heat risk zones through Aug. 17.
Some communities could experience their hottest temperatures of the season, or even the hottest conditions seen in several years. Nighttime may provide little relief, particularly in urban areas where temperatures may struggle to fall below 80 degrees.
The prolonged nature of the heat increases the danger. Several consecutive days of high heat stress can lead to serious heat-related illness, especially for people without reliable air conditioning and those spending extended periods outdoors.
The threat could persist later into August. Federal forecasters show a high risk of extreme heat across portions of the Southern Plains and Lower Mississippi Valley from Aug. 18-21, along with concerns about rapidly developing drought.
Residents should limit strenuous outdoor activity during the hottest afternoon hours, stay hydrated and use air conditioning or cooling centers when necessary. Officials also recommend checking on vulnerable neighbors and ensuring pets have fresh water and shade.
