Some of hottest air of the season, so far, will be affecting the Southeastern U.S. northward to the OH River and westward into the Plains. Temperatures will rise into the mid and upper 90s from Kansas to Florida. The hottest air will arrive Thursday through Saturday with highest temperatures being reached from southern MS-southern GA where the century mark will be met and in some cases topped. Either way, the humidity will be high all across the Southeast allowing heat index values to rise to the 100 to 110 degree range.
As the heat builds and increase in dew points (humidity) will also be occurring across the Heartland in advance of an approaching front that will bring a bit of a change. This will be setting up the scenario for some widespread strong to severe storms from IA/MO eastward into the OH Valley Thursday night-Saturday.
This front will bring a bit of relieve along and east of the MS river but the biggest relieve will be confined along and north of I-70. South of I-70, it will be just a tad cooler, highs in the low 90s with lower humidity. Next week the potential is setting up for the brunt of the heat to be shifting into the Plains with a cooling and wetter trend setting up for the Eastern 1/3 of the nation.
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