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[May 24, 2010] (AP) Active weather will develop throughout portions of the West on Monday as a storm system moves out of the central Great Basin and into the Rockies.

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As the system progresses, an associated warm front will move across the northern High Plains and trigger areas of rain showers and high-elevation snowfall, with isolated thunderstorms from the northern Intermountain West to the northern Plains. Some storms may produce significant precipitation across the mountains through the afternoon and may create hazardous travel conditions from central Montana to north-central Utah.

Thunderstorms in parts of the northern and central Plains may turn severe with large hail, damaging winds and possible tornadoes. Meanwhile, to the south, additional showers and thunderstorms are possible ahead of an associated cold front, from areas of western Kansas through western Texas.

The cool trough over the West will keep California and the Pacific Northwest under cool and breezy conditions on Monday. Strong winds associated with the trough will sweep across the warm and dry Southwest and will raise fire danger concerns across areas of Arizona and New Mexico.

In the East, another area of low pressure will trigger scattered showers and thunderstorms in the Carolinas and near the Mid-Atlantic coast. Similar weather conditions are expected across portions of the Tennessee Valley.

Temperatures in the Lower 48 states Sunday ranged from a low of 17 degrees at Truckee-Tahoe, Calif., to a high of 100 degrees at Pecos, 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]