Winter Weather Advisory

Rain, gusty storms to threaten Mother's Day plans across northeastern US

By Renee Duff, AccuWeather meteorologist
May 14, 2017, 5:22:32 AM EDT

As a rainstorm continues to soak New England on Mother's Day, gusty winds and thunderstorms will threaten the mid-Atlantic.

People may be forced to bring Mother's Day celebrations inside. Even worse than ruined outdoor plans will be the threat for urban and coastal flooding and sporadic power outages.

A storm that took all week to cross the Southern states this past week has gathered strength, moisture and wind off the Northeast coast this weekend.

“Additional energy diving southward out of eastern Canada caused the storm to intensify,” AccuWeather Meteorologist Ryan Adamson said.

Northeast regional 5.14

A general 1 to 2 inches of rain fell from Philadelphia to New York City on Saturday.

Similar rainfall totals, and even locally higher amounts, are likely as the rain continues to sweep northeastward across New England through Mother's Day. It will take until later Monday before the dreary conditions to fully exit New England.

“Flooding from the heavy rain should be limited primarily to urban areas,” Adamson said. Small streams and low-lying areas could also experience an increase in water levels.

On the northwestern side of the storm, a second wave of showers and perhaps even some gusty thunderstorms will drop southward from Canada on the back edge of the storm into west-central New York, central and eastern Pennsylvania and New Jersey on Mother’s Day.

The gusty showers could take some people off guard as the sun will be out for much of the day. Anyone who is enjoying Mother's Day outdoors should seek shelter indoors at the first sight of lightning or rumble of thunder.

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Gusty winds even in the absence of thunderstorms will whip across the region. Wind gusts between 20 and 30 mph will be common across interior areas, with even higher gusts along the New England coast.

The winds could be strong enough near the coast to cause tree and power line damage and sporadic power outages.

The winds will also push ocean water toward the coast, heightening the risk of coastal flooding from Massachusetts to Maine.

Static NE Storm Saturday Night Sunday

“Any coastal flooding will be minor since the storm will not be extremely strong and the full moon occurred this past Wednesday,” Adamson said.

In a few days after the storm departs, some of the warmest air so far this month is expected to surge into the Northeast later in the week.

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