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[February 22, 2011] (AP) Active weather is expected across both the East Coast and West Coast on Tuesday.

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A low pressure system in the Midwest will continue making its way eastward, throughout the day. The system may bring a few more rain and snow showers to the Mid-Atlantic and Southeastern states as it quickly pushes offshore. The front associated with this system will push southward and extend from eastern Texas into northern Florida, hovering just along the Gulf Coast. Expect precipitation totals to be significantly lower than Monday, with near an inch of snow across southern New England and high elevations of the southern Appalachians in the early morning hours. Cloudy skies and a chance for rain showers are likely in the South.

Behind this system, a large ridge of high pressure builds in from Canada and pushes cold air in from the North. This ridge will allow for a dry and sunny day, but brings the return of brisk temperatures to the central U.S. Expect the northern Plains and upper Midwest to see highs in the 20s, while the mid-Mississippi River Valley and central Plains will see highs in the 40s.

Out West, two low pressure systems affect the West Coast on Tuesday. One low skirts down the West Coast, kicking up clouds and triggering light showers along the coast of California. Meanwhile, another system moves into the Pacific Northwest from the Gulf of Alaska. This will bring periods of heavy rain to the coasts, while the Cascades will see more snow. Snow levels will start the day around 2,000 feet, falling to around 1,000 feet by Tuesday evening.

Temperatures in the Lower 48 states Monday ranged from a morning low of minus 20 degrees at Sidney-Richland, Mont., to a high of 93 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]