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Weather Underground Forecast for Wednesday, March 12, 2014
An active weather system will move across the eastern third of the country on Wednesday, while the West Coast can expect relatively calm conditions.
A cold frontal boundary is forecast to stretch from the western Gulf Coast to the Northeast on Wednesday, driving an active weather system across a handful of East Coast states. An area of low pressure along the northern end of the cold front will usher heavy snow across the Ohio Valley, the eastern Great Lakes and the Northeast. Scattered snow showers will also be possible across the upper Midwest and the western Great Lakes. As this low pressure approaches the Eastern Seaboard, it will draw warm air from the southeast and bring a chance of freezing rain to coastal New England. To the southeast of this frontal boundary, widespread showers and thunderstorms will develop and push across the Mid-Atlantic and the southeastern U.S.
The Gulf Coast will also experience wet weather on Wednesday as the previously mentioned cold front shifts eastward across the area. Showers and thunderstorms will be possible over the central and eastern Gulf Coast, while the western Gulf Coast and the southern Plains will avoid precipitation.
Meanwhile, a ridge of high pressure will build across the western half of the country, keeping conditions relatively calm to the west of the Continental Divide. Temperatures will range between the 70s and 80s across the Desert Southwest.