First Accumulating Snow of the Season Expected For Parts of the East Coast, Midwest This Weekend
Published: December 7, 2017
With colder air now in place, a pair of weather systems are increasingly likely to produce the season's first accumulating snow for some locations in the East and Midwest into the weekend.
(MORE: Winter Storm Central | When the First Snow Typically Arrives)
One system will nosedive out of Canada and sweep through the Midwest late Friday into Saturday. The second system will ride off the East Coast this weekend, spreading its own snow into parts of the Northeast and Mid-Atlantic states.
The pair of weather systems, one off the East Coast, another diving into the Midwest, that will bring some first snow of the season for some locations Friday into this weekend.
One system that is increasingly likely to bring snow to parts of the East Coast has its origins in what is already producing quite a notable snow event as far south as Deep South Texas and northern Mexico, and will also spread some wet snow into other parts of the Deep South Friday.
(MORE: Snow Expected in the Deep South)
By Friday, a thin band of wet snow may form and spread as far north as parts of Virginia the Delmarva Peninsula, even southern New Jersey.
Friday night, that band of snow may spread as far north as southern New England and parts of the New York City Tri-State area, and may continue farther south in the Mid-Atlantic states into parts of Maryland and Virginia.
Saturday, as low pressure off the East Coast gains a more intensity, a broad area of snow is possible along much of the I-95 corridor from New England to Virginia and parts of North Carolina.
Eastern Flakes Late Week?
This snow may persist in New England Saturday night, perhaps into Sunday morning as the strengthening offshore low heads north into Atlantic Canada.
How far inland and how much snow falls depends on the exact track and intensity of the offshore low, which still remains a bit uncertain.
At this time, here are our snowfall confidence levels:
- High confidence: New England
- Lower, but increasing confidence: Rest of I-95 corridor from New York City southward
For now, this looks to be a light-to-moderate snow event, generally less than 6 inches in most areas.
This would be the season's first measurable snow along much of the I-95 corridor. Similar first season's snow events can lead to more traffic accidents than normal, as motorists adjust to winter driving conditions.
(MORE: Is Light Snow More Dangerous For Drivers Than Major Snowstorms?)
Check back with us for updates on this developing system.
A potent disturbance in the jet stream will dive south out of Manitoba, Canada, and sweep through the Upper Midwest, Great Lakes and Ohio Valley Friday into Saturday.
Accompanying this will be a swath of light snow in the Upper Midwest and western Great Lakes Friday and Friday night, then pivoting into the Ohio Valley and eastern Great Lakes Saturday.
Snow amounts in most areas from this system should be on the order of up to 3 inches, but some higher amounts are likely in the Great Lakes snowbelts.
This could be the first accumulating snow of the season for cities such as Detroit, Cincinnati, Ohio, and Pittsburgh.
As mentioned earlier, given this, some slippery travel can be expected Friday into Saturday in these areas.
Check back with us at weather.com for the latest on these systems and, as always, all winter weather during the 2017-2018 season.
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