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Flash flood warning in effect for Philadelphia, some surrounding counties as rain hits region

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CBS News Philadelphia Live

Monday is a NEXT Weather Alert day in the Philadelphia region for tropical downpours and an elevated flash flood risk.  

As a cold front approaches the area, widespread showers and storms developed in the afternoon, evening and overnight hours. Any storm could train over the same areas for an hour or more.

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CBS News Philadelphia

Rainfall rates in some storms will approach 1-2 inches per hour, with rainfall totals between 2-4 inches or more under any storm.

A flash flood warning is in effect for these areas: 

  • Burlington and Camden counties, New Jersey, until 11:45 p.m.
  • Philadelphia County, Pennsylvania, until 11:45 p.m.
  • Montgomery County, Pennsylvania, until 11:15 p.m.
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CBS News Philadelphia

Because the ground is saturated, much of the rain will run off, leading to flooded streams and roads. Late Monday evening commutes may be affected.

Remember, never drive through flooded areas. Turn around, don't drown.

Weakened trees may also fall because of saturated soil, and travel delays are possible.

Severe weather is not expected, but an isolated damaging wind gust is possible.

A weather map showing temps in the 70s and a line of rain storms crossing much of the Philadelphia area Monday at 10 p.m.
CBS News Philadelphia

Tuesday may start with isolated storms and localized flooding. Otherwise, skies will be partly sunny, and highs will be in the upper 80s.

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CBS News Philadelphia

We will have a more typical summer pattern Wednesday through Friday with partly sunny skies and isolated storms each afternoon. Temperatures will also soar to either side of 90 during the day and the mid-70s at night. High humidity will lead to heat indices that feel close to 100 degrees. We will be monitoring for any possible heat alerts.

Here's your 7-day forecast:

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CBS News Philadelphia

Monday: NEXT Weather Alert for flooding. High 85.

Tuesday: Scattered storms. High 87, Low 73.

Wednesday: PM T-storms. High 88, Low 74.

Thursday: Scattered storms. High 92, Low 76.

Friday: Scattered storms. High 89, Low 77.

Saturday: Mostly sunny. High 88, Low 73.

Sunday: Isolated storms. High 87, Low 75.

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