Forecast: Excessive Warmth Index Expands Throughout Texas, Tennessee and Southern States


Harmful warmth is continuous to broaden east this week, delivering the most well liked temperatures of the yr for a lot of states within the South outdoors of Texas.

“The complete wrath of summer season is ready to snatch the South this weekend,” forecasters in Atlanta warned on Wednesday.

Greater than a dozen day by day high-temperature information might be damaged throughout the area by way of the top of the week. However what’s much more harmful is the record-breaking potential for what’s often called the excessive minimal temperature, which implies places are usually not anticipated to see a lot aid at night time.

These excessive nighttime temperatures happen as a result of the humidity retains the air from cooling as effectively at night time. Humid air may maintain the physique from cooling as effectively as a result of the air is so saturated that moisture from an individual’s pores and skin has nowhere to evaporate, a necessity for cooling down. That is why the warmth index, which accounts for the mix of temperature and humidity, is a vital measure of what the precise temperature seems like.

The very best warmth index values of 110 to 120 over the following a number of days are anticipated to have an effect on individuals within the cities of Dallas, Houston, Jackson, Miss., Little Rock, Ark., Nashville and New Orleans.

But it surely isn’t simply the South: The warmth can be affecting individuals from the Southwest to throughout the Southern Plains.

Because the dome of excessive stress shifts east in the course of the lengthy July 4 weekend, some aid is predicted. Elements of Texas, the Decrease Mississippi Valley and the mid-South will see temperatures development down to close regular values this weekend, forecasters mentioned. Nevertheless, hazardous warmth will proceed for these alongside the Gulf Coast, the place humidity is predicted to stay excessive.


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