First we have the high heat and humidity to get through the rest of Sunday and Monday. High pressure centered over the Tennessee Valley is holding strong for a couple more days, allowing building heat and occasional afternoon storms. So far today it's been nasty. Officially over at Rickenbacker we haven't hit a heat index over 100°, but here at home I've seen a heat index as high as 106°. That may be a bit aggressive considering the dewpoint I've been getting is 5° more than the local airports, but it still feels extremely humid out there.
That high pressure will be dissipating and moving offshore by Tuesday, allowing a change in the pattern:
After one more day of head indicies around and above 100° on Monday, we'll go through a long term pattern where we should see multiple storm systems diving in out of the Northern Plains. As of now the greatest chance for rain looks like next weekend as the biggest system moves in, but in the meantime starting Tuesday we should see a strong chance for showers and thunderstorms every afternoon. Heat will subside in to the low to mid 80s, but dewpoints will stay in the 70s every day except Thursday.
Prepare for the middle of Summer, just a few weeks early
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