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[May 03, 2011]  (AP)  More wet weather is anticipated across the eastern valleys on Tuesday, due to a front stretching from the Northeast to the Gulf of Mexico.

A low pressure system in eastern Canada pushes a trough of low pressure over the Great Lakes and New England. Southward flow around the back of this system will allow for a cold front to develop to the south. This system will slowly move eastward, over the Mississippi River Valley and reach the East Coast by evening. The system will produce more scattered showers and thunderstorms, as ample moisture from the Gulf and Atlantic Ocean feed energy into it. If storms turn severe, they will most likely develop across New England, the Ohio River Valley and Mid-Atlantic states. Expect rainfall totals to range from 1 to 2 inches, with up to 3 inches likely in areas of thunderstorm development.

Behind this system, a ridge of high pressure builds over the Plains and central U.S. This creates another sunny day across the Plains, which allows for warmer temperatures. Highs will reach into the 50s and 60s across the North, while the South will remain in the mid-60s, a few degrees below normal for this time of year.

Farther West, a low pressure system and associated cold front continue moving over the Pacific Northwest and into the northern Rockies. This will push rain and high-elevation snow showers into the northern Rockies, while a few light rain showers will linger over Oregon and Washington.

Temperatures in the Lower 48 states Monday ranged from a morning low of 3 degrees at Leadville, Colo., to a high of 93 degrees at Tampa Vandenberg, Fla.

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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]

Copyright 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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