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AccuWeather: Watch Out for Snow Squalls

Snow squalls to create dangerous travel conditions in parts of the Northeast on Friday

"As a strong cold front moves through, the jet stream will quickly sink out of Canada and well south of the region, allowing polar air to spill southward and eastward," AccuWeather Senior Meteorologist Mike LeSeney explained.

AccuWeather Global Weather Center – November 18, 2022 –A round of heavy snow showers and squalls marching east across portions of the mid-Atlantic and Northeast on Friday will lead to dangerous travel conditions on the highways during one of the busiest travel days of the year, according to AccuWeather meteorologists.

A fresh blast of cold air and atmospheric energy arriving in the region will be responsible for the snow threat. The same blast of cold air will lead to a December-like chill in the region this weekend while reinforcing the ongoing, major lake-effect snow event downwind of the Great Lakes.

Snow squalls are fast-moving bursts of heavy snow that usually last for 30 minutes or less and are accompanied by strong, gusty winds that quickly reduce visibility and lead to slick road conditions. For motorists, especially on highways, it causes dangerous travel conditions due to the sudden onset of the wintry conditions. A number of large pileups have occurred in the past due to snow squalls.

The heavier snow showers and squalls will push east across a large portion of Pennsylvania Friday into early Friday night, as well as neighboring areas in eastern Ohio, northern West Virginia, western Maryland, southern New York, northwestern New Jersey and Connecticut.

The Pennsylvania Turnpike, as well as interstates 79, 80, 81, 90 and 95 are among the highways that will be impacted by this wintry threat.

While temperatures are warmer along the highly populated areas of I-95 from Baltimore to Hartford, a few snow showers could survive into early Friday night.

"The energy aloft could spawn some snow showers as far east as Philadelphia and New York City into [Friday] evening," said AccuWeather Meteorologist Nicole LoBiondo. Any snow along this corridor would likely start as a period of rain, as temperatures will well be above freezing this evening.

A quick coating to an inch of snow can accumulate in many areas from the heaviest snow showers and squalls. This can often occur in a period of time as brief as 15 minutes, forecasters say.

In the wake of the snow, bitterly cold weather is expected from Friday night into the weekend, with temperatures failing to go above freezing in some areas until early next week. This could lead to some icy spots on roads and sidewalks that last well after the snow is done falling.

"There is a concern that any wet roads could turn icy overnight, making for slippery roads into early Saturday morning," LoBiondo added.

Since Friday is traditionally a busy travel day ahead of the Thanksgiving holiday, travelers are advised to check conditions along their planned route prior to leaving or check ahead with their airline if flying.

Snow squalls to create dangerous travel conditions in parts of Northeast on Friday (Full Story) >>