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Associated Press

Posted on October 8, 2012 at 5:06 AM

Weather Underground Forecast for Monday, October 08, 2012.

Much of the East will begin the work-week with chilly temperatures on Monday morning as a cold dome of high pressure extending from Southern Plains through the Ohio Valley shifts northeastward into the Northeast and the Mid-Atlantic. Many areas from the Southern Plains into the inner Northeast will remain under various Freeze Watches and Frost Advisories through the early morning as temperatures remain near freezing. After a chilly start to the day, daytime temperatures in the Northeast, Mid-Atlantic, and parts of the Midwest will struggle to recover during the afternoon. Daytime highs are expected to range from the mid-40s in the northernmost parts of the Upper Midwest and Northeast to 60s throughout much of the northeastern quadrant of the nation. Meanwhile, cold flow associated with this system will spread across the warmer waters of the Great Lakes and trigger lake-effect precipitation downwind of the lakes.

Elsewhere in the East, a cold front and wave of low pressure will become nearly stationary across the southeastern corner of the nation. Showers and thunderstorms will develop from the Florida Peninsula northward through the Mid-Atlantic during the day and along the Northeast coast by Tuesday.

Behind this activity, a storm system skirting along the U.S.-Canadian border will drop southeastward toward the Upper Great Lakes by Monday night. Light rain showers will accompany this system across parts of North Dakota, northern Minnesota and Wisconsin, and Michigan¼'s Upper Peninsula. High pressure filling in behind this system will help kick up possible snow showers in the Northern Rockies.

Temperatures in the Lower 48 states Sunday have ranged from a morning low of 6 degrees at Laramie, Wyo. to a high of 93 degrees at El Centro, Calif.

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