Henry Margusity

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Covering the Snows and Severe Weather This Week

December 17, 2012; 10:00 AM ET

Commentary

With the NAO and PNA staying near neutral the next two weeks, the storm track will not favor major storms along the East Coast. However, the storm coming up Tuesday into Wednesday should strengthen off Maine and that will mean snow as shown on the map below. Parts of Maine, Vermont and New Hampshire will see an excess of 6 inches of snow by the end of Wednesday.

The next storm and more powerful storm will go from the southern Rockies to the Great Lakes, producing a swath of wind-blown snow and near-blizzard conditions. The map below shows the snowfall through Friday, but does not take into account the lake snows that will develop in the traditional northwest flow areas. The combination of high winds and lake snows will create lake-effect blizzards for western Michigan and parts of Ohio, northwestern Pennsylvania and western New York.

In some locations like Chicago, rain will be going over to snow with high winds. Roads will certainly get icy during the changeover.

I expect to see road closures in the heavy snow and blizzard area as the storm produces wind gusts over 40 mph.

Severe weather...

1. Today in Kentucky where storms with hail will occur under the upper-level low.

2. The extreme Southeast where storms will produce wind damage and hail, perhaps the odd tornado.

3. Wednesday, a band of severe storms should develop across the lower Mississippi Valley. Hail, damaging wind gusts and tornadoes are possible late in the day.

Longer range: We have at least two more major storms after this one. Each one will be a lake cutter and could produce significant snows through the Midwest and Great Lakes.

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

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Henry Margusity
AccuWeather.com severe weather expert, Henry Margusity, offers the Meteorological Madness blog including detailed analysis of severe weather across the US.