A clipper-type system will track eastward through the Great Lakes today and tonight, dragging a cold front eastward across the eastern Great Lakes as it moves by. Then, a secondary cold front will cross the region on Friday. Much of the region will see snow showers from late tonight through Friday night with only minor accumulations expected.
Colder air will deepen across the area behind the secondary cold front later Friday into Friday night. Lake effect snow will become increasingly likely beginning Friday across lower Michigan, and Friday night across northeastern Ohio, northwestern Pennsylvania, and western New York. The lake effect snows will likely continue through Saturday and Saturday night before gradually diminishing. Through this event, winds will primarily be west-northwest to northwest so areas to the southeast of the lakes will see the greatest totals. The National Weather Service has already issued a Lake Effect Snow Watch for portions of western New York.
Localized amounts in these snow belt areas could exceed 8 inches from Friday through Saturday night.
The lake effect snows will wind down late Saturday night off in the west, and Sunday across the eastern areas.
The trough bringing the cold weather to the Great Lakes and northeastern United States this weekend will begin to lift out to the northeast early next week as another trough digs into the central United States. Low pressure is forecast to deepen over the mid Mississippi Valley and head northeastward into the Great Lakes on Tuesday. A strong cold front will sweep eastward through the Ohio Valley and eastern Great Lakes bringing widespread rain and snow to the region. The track and evolution of this system remain uncertain. I will post additional updates as new information becomes available.
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