First Alert Weather

Potential for snow squall on Sunday

Be on the look out for intense bursts of heavy snow and gusty winds leading to blowing snow and rapidly falling visibility. Wind gusts could be greater than 35 m.p.h.

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NBC10 First Alert Weather meteorologist Marvin Gomez is tracking possible snow squalls — abrupt, windy storms — in the region on Sunday morning. Snow is also possible later this week.

The first true arctic front of the season will roll through midday on Sunday.

Along with that will be a narrow band of intense snowfall that is expected. This is referred to as a snow squall.

What is a snow squall?

These bursts of snow usually last for only 15 to 20 minutes, but can be dangerous to motorists.

In a snow squall, visibility can quickly drop to just a quarter of a mile and, as a result, accidents can occur on roadways.

The National Weather Service now issues alerts for snow squalls when they anticipate that they could impact drivers.

When will the squall arrive?

The squall on Sunday is expected to start in the Lehigh Valley around 11 a.m. and push toward Philadelphia by noon.

On Sunday morning, a snow squall alert was in effect in the Philadelphia region until about 12:30 p.m.

It is expected to continue across New Jersey and Northern Delaware before reaching the Shore around 1:30 p.m.

Parts of the Lehigh Valley could see a quick inch of snow fall, but most areas in our region will see no accumulation.

Behind the squall, winds will pick up and temperatures will drop sharply into the middle 20s.

Temperatures are dropping after another storm left our region on Saturday. NBC10's Brian Sheehan has more as we expect a possible snow squall on Sunday.
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