Timeline For Severe Thunderstorms, Hail In Eastern PA

PENNSYLVANIA — The run of gorgeous weather in the greater Philadelphia area could end Tuesday when severe thunderstorms, damaging wind gusts, and hail potentially arrive in the region.

A round of showers and thunderstorms could start as early as Tuesday afternoon in in the Philadelphia suburbs, the National Weather Service said.

Stronger storms are possible in the later afternoon as a cold front pushes south. Scattered severe thunderstorms are forecasted throughout counties in southeastern Pennsylvania.

Forecasters said the period of concern is 1 to 3 p.m. in northwest counties with storms moving through the I-95 urban corridor from 4 to 6 p.m. Storms are expected to move off the coast by the mid to late evening.

Good Morning! Several rounds of showers and thunderstorms are expected today in association with a cold front. Some storms have the potential of becoming severe during the afternoon and evening hours. #PAWX #NJWX #DEWX #MDWX pic.twitter.com/aO6nb4mksP
— NWS Mount Holly (@NWS_MountHolly) September 28, 2021

The main threat of the storm is damaging wind gusts, but the weather service warns that hail is also possible. New rainfall amounts between a tenth and quarter of an inch are expected, though higher amounts could be possible during thunderstorms.

The National Weather Service said the storms should move through quickly enough to avoid flash flooding, though localized flooding is still possible in areas with poor drainage.

Sunny, pleasant weather is expected to return on Wednesday and Thursday with daytime temperatures in the upper 60s.

Though Hurricane Sam is expected to remain hundreds of miles off the coast, strong rip currents and rough surf may impact the Jersey Shore this week.

Here’s the latest forecast:

Tuesday

Showers and thunderstorms likely, mainly after 4pm. Mostly cloudy, with a high near 79. West wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday night

Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 54. North wind 5 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.

Wednesday

Sunny, with a high near 72. North wind 10 to 15 mph.

Wednesday Night

Mostly clear, with a low around 56. Northwest wind around 5 mph.

With reporting from Patch correspondent Kimberlee Bongard