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    Henry Margusity

    Blizzard, High Wind Event, Rapid Freeze, Heavy Snows Next 24 hours

    1/12/2012, 4:57:41 AM

    Disco

    We have a lot going on the next 24 hours, so let me try to break it down...

    1. Near-Blizzard Conditions Chicago, Midwest and western Great Lakes through Friday morning. The combination of falling temperatures, high winds and snow will produce near-blizzard conditions. Snowfall will generally be above 3 inches with some areas having 8 inches. Lake enhancement off Lake Michigan will produce much more.

    2. Dam-Breaking, High Wind Event I-95 corridor. The buildup of cold air along the west slopes of the Appalachians, combined with thunderstorms and a strong jet aloft may produce a high wind event through D.C., Baltimore and Philly Friday morning. I can see wind gusts over 60 mph as the front blows through during the morning hours. Typically, these events produce wind gusts from 60-90 mph. Winds in general during Friday will be gusting from 40-50 mph.

    3. A burst of snow with falling temps will start in Tennessee and move northeastward through Pennsylvania into New York. Thunderstorms will proceed the snow burst. Temperatures will fall some 20 degrees, and roads will ice over. You can see on the HRRR image below the snowcover all the way into Ohio, West Virginia and Kentucky that represents the change over to snow by this evening. This will be a dramatic change for many and I expect school delays Friday morning due to icy roads.

    4. Lake-Effect Snow - There is no doubt the lake-effect snow will be heavy into northern Indiana, northern Ohio, northwestern Pennsylvania and western New York Friday into Friday night. We may see over 2 feet of snow and blowing snow in the traditional west-northwest flow bands that come off the lakes.


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    The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com

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    Henry Margusity