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Philadelphia, Pa. weather: Rain, flooding risks Sunday night

NEXT Weather: Another Sunday storm
NEXT Weather: Another Sunday storm 03:16

PHILADELPHIA (CBS) -- It's the calm before Saturday night, as a storm headed to the Philadelphia region Sunday into Monday aims to bring flooding and wind risks, with the entire area under a slight risk for flash flooding Sunday.

For now, overnight Saturday into Sunday will bring light winds, increasing clouds and a chance for some patchy fog toward daylight.

It's best to get any errands done early Sunday, as the rain rolls in during the afternoon and lasts into Monday morning. The early commute on Monday will not only be terrible, but potentially dangerous. If you can work from home, Monday is the day to do it.

Sunday and Monday are NEXT Weather Alert days due to this storm.

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CBS News Philadelphia

By Sunday morning, the center of a strengthening low-pressure system will be near the coast of South Carolina, but by lunchtime light showers ahead of the approaching storm system will begin to move into the Philadelphia area.

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CBS News Philadelphia

We'll see spotty afternoon showers before widespread rain develops in the evening.

Most regions will see the heaviest rainfall from 11 p.m. Sunday to 5 a.m. Monday, but rain will continue through the Monday morning commute. In South Jersey and especially at the Shore, a second band of heavy rain will cross over Monday morning.

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CBS News Philadelphia

A wind advisory is in effect at the Shore from 6 p.m. Sunday to 6 p.m. Monday with winds of 20-40 mph, and a few gusts to over 50 mph.

This finally tapers off between 10 a.m. and 1 p.m. on Monday.

Rain totals between one and three inches are possible, but some pockets near the Shore could see three to four inches of rain. A lot of this rain will fall while you're sleeping.

This storm should last longer than last Sunday's storm.

Temperatures take a huge dive Monday after the storm moves out — low enough that we could see scattered snow showers — with the greatest chances in the Lehigh Valley and Poconos.

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CBS News Philadelphia
NEXT Weather: What you need to know about Sunday-Monday storm 03:53


Facebook Live: Tammie Souza shows you what to expect from storm

Decent weekend today and much of tomorrow but tomorrow night and Monday morning heavy rain and high winds arrive. Sound familiar? It’s similar to last weekend. Meteorologist Tammie Souza explains.

Posted by CBS Philadelphia on Saturday, December 16, 2023

You can be the first to know crucial weather information as we push it out by downloading our CBS News Philadelphia app and following our social media accounts.

Here's your 7-day forecast:

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CBS News Philadelphia

Sunday: NEXT Weather Alert Day - rain gets intense overnight. High 57, Low 42

Monday: NEXT Weather Alert Day - rain disrupts morning commute. High 61, Low 55

Tuesday: A possible snow shower early. High 41, Low 37

Wednesday: Partly sunny. High 44, Low 28.

Thursday: More sun, slightly warmer. High 48, Low 30

Friday: Not a bad Christmas Eve Eve Eve. High 45, Low 30

Saturday: Christmas Eve. High 45, Low 32

NEXT Weather Radars

Hourly Forecast

Get the latest weather info on the CBS News Philadelphia app.

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