The nation's weather

AP News
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Posted: Dec 11, 2011 7:06 AM
The nation's weather

Rain and thunderstorms are anticipated in parts of the South on Sunday.

Abundant moisture coupled with a disturbance from the West will maintain scattered showers with periods of moderate to heavy rainfall in southern Texas. Meanwhile, rain and thunderstorms will persist in southern Florida as a frontal boundary lingers over the area. While southern Florida will see the brunt of the wet weather, light showers are possible in the northern part of the peninsula.

Elsewhere, lake-effect snow showers downwind of the Great Lakes should come to an end as a high pressure system from the mid-Mississippi Valley moves eastward into the mid-Atlantic region.

In the West, a dry frontal disturbance moving across the Pacific Northwest will reach the upper Midwest by Sunday. The disturbance will extend from the northern Plains through the Northwest and into northern California.

Meanwhile, a disturbance dropping southeastward in a deepening low pressure trough along the West Coast will form a low off the central California coast by Sunday evening. During the transition, afternoon and evening showers are expected in the San Francisco Bay area. Precipitation will spread into southern California and will become more substantial in the form of rainfall and mountain snow Sunday evening through Monday.

Temperatures in the lower 48 states ranged Saturday from a morning low of minus 11 degrees at West Yellowstone, Mont., to a high of 82 degrees at Key West in Florida.

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Online:

Weather Underground: http://www.wunderground.com

National Weather Service: http://iwin.nws.noaa.gov

Intellicast: http://www.intellicast.com