A one-two arctic punch will lead to some snow across the Great Lakes, Northeast and Middle Atlantic Friday into the weekend. Snow will be generally light, though areas in higher elevations as well as down wind of the Great Lakes could have a few more inches with the usual enhancement from these geographical features. The first push of cold air will arrive along a cold front during the day Friday across the northern Great Lakes and continuing into the Northeast Friday night. Some snow showers along the front will produce an inch or two of snow, but near the Great Lakes some moisture from the relatively warm water will gather allowing for up to 3 or 4 inches. This will most likely occur in Michigan, northern Indiana, the Chicago lakefront area and eastward to northeastern Ohio, northwestern Pennsylvania and western New York. Parts of northwest Indiana could end up with over 6 inches of snow by early Saturday. As the front reaches the Appalachian Mountains, there can be a few inches from West Virginia to southern Pennsylvania. As this storm moves to the east of the mountains, there will be less snow as temperatures still hold above freezing for much of the time during the snowfall. A storm will form off the East coast Saturday and could bring several inches of snow to eastern new England into Saturday evening. On Sunday night, a second push of arctic air will move into the Northeast. This cold shot will have a few snow showers along the boundary associated with it, but no more than an inch of snow will fall along this front. There will be an additional lake-effect snow event, but this too will be short-lived.
In the West, some snow will develop on the lee side of the Rockies. This will develop as a result of high pressure building southward into the Plains. This will turn winds to the east with some upslope flow causing snow. This snow will accumulate 1-3 inches later Friday into Saturday.
By Brett Anderson, meteorologist
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