Another heat wave on tap this week

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Storm chances increase mid-week...

EVENING: Mainly clear, warm and muggy. Temps in the 80s. Low chance for a storm.

TONIGHT: Mostly Clear, Muggy. Low 70. Winds: Light.

TUESDAY: Very Hot, Humid. Mostly Sunny. High 97. Winds: SW 10-20 mph.

Monday afternoon reached 90 degrees, the 13th time we hot 90 or above this year. We average 21 days of 90 degree heat a year. Tonight continues warm and muggy with temperatures dropping near 70 overnight.

The humidity worsens Tuesday as a southwest breeze strengthens. Air temperatures will head toward the upper 90s with heat indices around 100 degrees at times. There is the chance of a stray storm developing by evening as a weak disturbance moves to our north, but forcing for storms looks weak locally. A slightly better chance for storms will come Wednesday evening ahead of an approaching front. Ahead of the storms, heat indices may again approach 100.

The front will be draped across the commonwealth Thursday, likely leading to our best chance of rain this week in the form of scattered storms. The remnants of Elsa will be moving through the mid-Atlantic at the same time, but it appears most of the tropical moisture will stay south of Pennsylvania with our rain chances mainly coming via the cold front. The front will hang close by Friday, enough to keep the chance for an afternoon storm around. Saturday looks dry at this point as high pressure briefly builds, but a few storms will be possible as next weekend wraps up. While temperatures will turn more seasonable later this week, the mugginess isn’t going anywhere!

-Meteorologist Eric Finkenbinder

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