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Weather Underground Forecast for Wednesday, March 05, 2014

A wave of low pressure will push across the Pacific Northwest on Wednesday, while a frontal boundary will extend across the Gulf of Mexico and Florida.

An onshore flow from the Gulf of Mexico associated with a warm front will trigger stormy weather along the Gulf Coast on Wednesday. Rain and thunderstorms will be possible from the central Gulf Coast to the Southeast, while an area of freezing rain is expected to develop over parts of Kansas, Oklahoma, Arkansas and Louisiana. A mixture of rain and snow will likely occur across the Tennessee Valley, while a swath of snow showers is forecast to move from the central Plains to the Ohio Valley. Scattered snow showers will also be possible across parts of the Northeast on Wednesday.

Meanwhile, a wave of low pressure will trek across the northwestern corner of the country. Rainy weather is expected from northern California to Washington, while an abundance of freezing rain and heavy snow will spread across the higher elevations in the Cascades and the northern Rockies. The southwestern U.S. will stay clear of rain and snow on Wednesday as an area of high pressure builds over Arizona. Temperatures are expected to jump into the 80s across the desert Southwest as a result of this high pressure.

Temperatures in the Lower 48 states Tuesday have ranged from a morning low of -20 degrees at Berlin, N.H. to a high of 84 degrees at Punta Gorda, Fla.

Copyright © The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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