Weather Underground Forecast for Sunday, November 25, 2012.
Lake effect snow showers will taper off for the Great Lakes on Sunday, while snow showers will spread across the Northern Plains on Sunday. A trough of low pressure and associated cold front continues moving eastward through the Northern Plains and Upper Midwest. A cold front will slide southward throughout the day, reaching from Wisconsin through Nebraska by Sunday evening. This system will continue pulling cold air in from Canada, thus allowing for mainly snow showers to develop along and behind this front. Snowfall accumulations from 3 to 5 inches are likely as far south as central Nebraska. The tail end of this front will also bring more mountain snow showers to Montana and Idaho as it extends westward over the Rockies. Snowfall accumulation will range from 1 to 3 inches across these areas. Significantly cooler air will spread across the center of the nation as this system spreads southward. Expect high temperatures to remain in the 30s and 40s in the Northern Plains, while the Southern Plains will see highs in the 50s and 60s. Out West, high pressure builds over the West Coast and keeps moisture out of the region. Chilly temperatures will persist for the Pacific Northwest, following the passage of the cold front that brought rain showers the past few days. High temperatures will range in the 40s to mid-50s for Washington and Oregon, while most of California will see highs in the mid-60s again on Sunday.
Temperatures in the Lower 48 states Saturday have ranged from a morning low of -6 degrees at International Falls, Minn. to a high of 87 degrees at Santee, Calif.