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[January 08, 2011] (AP) Expect more snow in the East as well as the northern Rockies on Saturday.

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Insurance Winter weather advisories have been issued across the Northeast and Tennessee and Ohio River valleys for Saturday as a low pressure system sweeps through, creating some heavy snowfall.

By Saturday evening, storm totals will range between 6 to 16 inches for combined snowfall on Friday and Saturday. Meanwhile, a cold front extends southward from this system and moves from the Appalachians and into the Southeast.

Expect another 1 to 3 inches of snow across the Virginias, with only a few flurries persisting across Kentuck, and Tennessee, while the Carolinas may see some light and scattered rain showers.

Cold air will pour in from Canada behind this front. Thus, temperatures will range from the lower 20s in the mid-Mississippi River Valley to the 40s across the lower Mississippi River Valley. In the North, lake-effect snow showers will start to diminish across the eastern shores of the Great Lakes.

In the West, a low pressure system strengthens as it continues moving over the northern Rockies into the northern Plains. Strong flow from western Canada continues pushing cool air in; thus, temperatures across the northern Rockies will vary in the teens and 20s. Strong winds will cause some near-whiteouts, creating dangerous travel conditions. Expect gusts up to 25 mph and up to 40 mph on high mountain passes.

Another 4 to 6 inches of new snow is likely across Montana, while snow in the Dakotas will not initiate until Saturday evening.

Temperatures in the Lower 48 states Friday ranged from a morning low of minus 9 degrees at Waskish, Minn., to a high of 86 degrees at McAllen, Texas.

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Online:

Weather Underground: http://www.wunderground.com/

National Weather Service:
http://iwin.nws.noaa.gov/

Intellicast:
http://www.intellicast.com/

[Associated Press article from Weather Underground]