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Associated Press

Posted on January 8, 2014 at 4:34 AM

Updated Wednesday, Jan 8 at 4:37 AM

Weather Underground Forecast for Wednesday, Jan. 8, 2014

Cold conditions will continue to sweep across the central and eastern portions of the country on Wednesday, while heavy precipitation will move across the Pacific Northwest.

High pressure over the northern Plains will continue to draw a bitter cold air mass across the northern tier of the country on Wednesday. Cold conditions are expected to interact with the warm waters of the Great Lakes to produce lake effect snow across the Michigan, Pennsylvania and New York. Temperatures will also drop significantly across the Mississippi Valley, the Tennessee Valley and the Southeast. This cold air mass will also mix with a low pressure system to trigger freezing rain and snow along eastern Oklahoma and Arkansas. Parts of the southern Plains will experience lighter rain, while light, scattered snow showers will be possible in the upper Midwest. The majority of the Eastern Seaboard will stay clear of precipitation on Wednesday, with the exception being along southern Florida where rain and thunderstorms are expected to develop.

Out west, low pressure will continue to ignite heavy rain and snow across the Pacific Northwest. Rainy weather can be expected in Washington, Oregon and northwestern California, while heavy snow will move across the Cascades and northern Rockies. The central Rockies can expect light snow throughout the afternoon and evening. Meanwhile, the Southwest will stay clear of wet weather as a ridge of high pressure continues to build over the eastern Pacific. .

Temperatures in the Lower 48 states Tuesday have ranged from a morning low of -30 degrees at Ladysmith, Wis. to a high of 70 degrees at San Diego, Calif.

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