Stormy Weather Coming To PA For Mother's Day Weekend

Another weekend, another storm on the horizon. Heavy rains and even flooding are possible this Mother's Day weekend.

The National Weather Service has issued a hazardous weather outlook for all of southeastern Pennsylvania, predicting a period or two of heavy rain is possible from Saturday night into Monday. Rain and high winds are also possible during late Friday afternoon and night and Saturday morning.

There is the potential for localized flooding of small streams, roadways and areas of poor drainage, according to the National Weather Service.

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Here are the alerted areas:

Here is what to expect:

• Rain and high winds (possible thunderstorms) are expected to arrive on Friday after 2 p.m., and could continue until 1 a.m.
• Rain, and possible thunderstorms, are expected to arrive after 9 p.m. on Saturday. Heavy rain is likely on Sunday.

"A storm system approaching the Northeast will likely lead to an isolated threat for strong to severe thunderstorms Friday afternoon," AccuWeather Meteorologist Brandon Buckingham said.

Locally damaging winds will be the primary threat with the thunderstorms on Friday. The strongest storms may also produce small hail, according to AccuWeather.

"These thunderstorms will reach the I-95 corridor during the early-evening hours," Buckingham said. "This could cause a thunderstorm to remain heavy and gusty upon arrival."

Some of the storms can pack highly-localized damaging wind gusts and flash flooding during the afternoon and the start of the evening, according to AccuWeather. Those traveling on the interstates on Friday afternoon will want to slow down in any heavier downpour to reduce the risk of hydroplaning.

Then more rain will approach the mid-Atlantic states on Sunday. There could be enough heavy rain on Sunday for areas of flooding, especially in low-lying and poor drainage areas, according to AccuWeather.

Here is the forecast:

• Friday: Isolated showers after 2pm. Mostly cloudy, with a high near 79. Southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
• Friday night: Showers and thunderstorms likely before 1am, then scattered showers. Mostly cloudy, with a low around 56. Southwest wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
• Saturday: Partly sunny, with a high near 70. North wind 5 to 9 mph.
• Saturday night: A chance of showers between 9pm and 3am, then rain likely and possibly a thunderstorm after 3am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 52. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
• Sunday: Rain likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a high near 59. East wind 10 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
• Sunday night: Rain likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a low around 49. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

With reporting from Patch correspondent Tom Davis.