Parts of the South, especially across Texas, have been enduring a blistering heat event for days, as temperatures have soared above 100 degrees. Those temperatures, combined with high humidity, have made it feel more like 110 to 120 degrees.
Houston had its first 100-degree day of the year Monday, about a month earlier than average, as it typically doesn’t hit 100 degrees until July 19.
On Tuesday, 32 million people remained under heat advisories and excessive heat warnings across the Southern tier, including parts of Texas, Oklahoma, Louisiana and New Mexico. In some locations, the heat index will be hotter than 120 degrees.
The Weather Prediction Center’s Greg Carbin tweeted that “just under 30 million people will experience at least 3 hours of a Heat Index of at least 105 degrees.” They include people within the large metro areas of Oklahoma City, Oklahoma; Dallas; Austin, Texas; and San Antonio.
Tuesday will be the hottest day of the week for many, as temperatures climb to 10 to 15 degrees above average.
With highs forecast to eclipse the century mark, Texas cities like Abilene, Austin, Houston, Laredo and Corpus Christi could set daily record highs in the coming days.
Kathryn Prociv is a senior meteorologist and producer for NBC News.