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Associated Press

Posted on November 26, 2012 at 5:34 AM

Updated Monday, Nov 26 at 6:02 AM

Weather Underground Forecast for Monday, November 26, 2012.

Chilly and areas of unsettled weather will continue in the eastern half of the nation on Monday as an upper trough of low pressure settles over the Eastern U.S. An associated area of low pressure will shift eastward from the Upper Great Lakes into the Northeast, while an associated cold front trails southwestward from the low through the Southern Plains. Energy from this system combined with a cold airmass already in place over the northern tier of the region will allow lake effect snow showers to persist in the Upper Great Lakes and parts of New England.

Meanwhile, to the south, a weak trough of low pressure in Mexico will lift into the western Gulf of Mexico on Monday, sending energy and moisture across the Gulf Coast. This activity combined with the aformentioned cold front reaching into the Southern Plains will lead to scattered thunderstorm activity from eastern Texas into Louisiana, southern Arkansas, and far western Mississippi. There is a slight risk of severe thunderstorm activity in these areas may turn severe with large hail of 1 to 2 inches in diameter and damaging wind gusts. Conditions are expected to only be marginally conducive for tornado development.

Elsewhere, blustery northwesterly flow will continue across the north-central U.S, allowing many areas to experience daytime highs that were well below the freezing mark. Cold temperatures and areas of energy pushing through the region kick light snow showers in parts of the Northern and Central Rockies and the Central Plains.

Temperatures in the Lower 48 states Sunday have ranged from a morning low of 5 degrees at Alamosa, Colo. to a high of 82 degrees at San Nicolas Island, Calif.

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