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Risk For Flash Flooding Friday

(credit: CBS3)

(credit: CBS3)

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By Kate Bilo

PHILADELPHIA (CBS) — We’re firmly lodged in the WARM SECTOR of this oncoming storm, but you don’t need me to tell you that, just step outside and you’ll feel the heat and humidity, in stark contrast to yesterday’s cool, cloudy weather.

The warm sector of a storm is the slice of space between the warm front and the cold front, and the cold front is what will bring us a wet day tomorrow, with the risk for flash flooding. This front has been crawling through the Midwest all week, and finally will get a bit of a push eastward tomorrow, though it’s slow go – thanks to winds parallel to the front it will be an all-day event.

We will be under a Flash Flood Watch all day tomorrow. I think we will pick up around an inch to two inches of rain across the Delaware Valley, but the wild card will be the thunderstorms – any heavier storm could dump a quick downpour on certain spots across the region as we tap into some tropical moisture, so it’s not out of the question that we see some heavier amounts in spots.

The upside is that this system will clear the area late tomorrow evening, leaving behind a cool and refreshing air mass for the weekend – we’ll enjoy sunshine and highs in the low 70’s both days!

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