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Plenty of active winter weather will be found across the Great Lakes and Western U.S. this weekend as the winter season kicks into high gear.
An area of deep low pressure over the Great Lakes will move quickly into Southeastern Canada by this evening. The system will continue to produce heavy snow over the Upper Great Lakes today, with the heaviest snow tapering off later this afternoon.
Winter Storm Warnings are in place from northern Wisconsin to northern Michigan. Winter Weather Advisories can be found on the southern edge of the warnings. This includes Green Bay, Wis., and Marquette, Mich.
The snow will zip northeastward across the shores of the Great Lakes as the day progresses. The heaviest accumulations can be expected along and north of this corridor in Wisconsin and the Upper peninsula of Michigan. Here, 3 to 6 inches of snow is possible through this afternoon, with locally as much as 8 inches of the white stuff.
Coupled with winds that could gust as high as 30 to 50 mph, blowing and drifting of the falling snow will cause visibilities to drop to near-zero, making travel difficult if not impossible. If you do have to travel through this afternoon, be prepared for slow conditions on the roads.
Out in the West, a strong system will move onshore over the Pacific Northwest today and push inland into the Northern Plains by Monday. It will produce a robust plume of moisture that will stream into parts of the Pacific Northwest and Northern California and slowly move southward over the West coast to Southern California by Sunday evening into Monday.
The result will be rain and higher elevation snow over the Northwest, with snow extending inland to the Northern Rockies today.The rain and higher elevation snow will expand into parts of Northern California and Central California tonight, lasting through Sunday night into Monday. This long-duration event will mean the snow will pile up, leading to heavy snow totals over the Cascades, Sierra Nevada Mountains, and Northern Rockies. Snowfall will be on the order of feet across the Sierra Nevada, Cascades and surrounding ranges, with 1 to 2 inches of rain across valley locales. Already, Winter Storm Watches and Warnings as well as Winter Weather Advisories have been issued for the mountains from Washington to California.
It is never too early to have a supply kit packed in case of inclement weather. A simple kit including a weather radio, water, blankets, batteries, and non-perishable food items will go a long way in the event of a power outage. It’s always best to not travel in rough weather as the roads will be dangerous.