Storm Timeline For Weekend Downpours, Flooding In Eastern PA

For the second weekend in a row, a Hazardous Weather Outlook has been issued due to the risk of downpours and flooding. Heavy rain is expected to start later on Friday and continue through the weekend, according to the National Weather Service. The worst of the rain will likely fall Friday evening through Saturday evening, AccuWeather is predicting.

The weekend downpours could be heavy and persistent enough to produce another round of flash flooding for already saturated grounds. Areas most at risk for the storms coming through the area include southeastern Pennsylvania and southern New Jersey. Isolated mudslides could also occur in areas with steep terrain, AccuWeather warned.

Downpours will likely increase in frequency and duration throughout the weekend as a cooler air from the Great Lakes interacts with tropical air in place, according to AccuWeather.

The storm is expected to drop one to two inches of rain through Sunday but some areas could see four to eight inches, forecasters say.

If the storm pans out as predicted, it would be the second weekend in row the region has dealt with flash flooding. Flooding on Sunday closed many roads in the Philadelphia region.

The rain won't end this weekend. More showers are predicted to linger through early next week.

Here is the forecast, according to the National Weather Service:

Today: A slight chance of showers, then a chance of showers and thunderstorms after noon. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 86. West wind 3 to 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light west wind. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday: Showers likely, with thunderstorms also possible after 2pm. Some of the storms could produce heavy rainfall. Cloudy, with a high near 80. Northeast wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then scattered showers. Some of the storms could produce heavy rainfall. Cloudy, with a low around 61. East wind 6 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday: Scattered showers after 2pm. Mostly cloudy, with a high near 66. East wind 11 to 14 mph. Chance of precipitation is 30%.

Sunday Night: Scattered showers, mainly after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Monday: A chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 50%.

Monday Night: A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.

Tuesday: A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 30%.

Tuesday Night: A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.

Wednesday: Partly sunny, with a high near 70.

Image via Shutterstock