Wet weather will ease Sunday across the Midwest as a winter storm treks eastward. The system will also advance southeastward from the mid-Mississippi River Valley, moving over the Tennessee Valley and into the Appalachians.
This system will continue pulling in warm, moist air from the Gulf of Mexico as scattered showers and thunderstorms develop from Florida through the mid-Atlantic states. Some of these storms could turn severe with damaging wind gusts, large hail and heavy downpours. This system will continue eastward Sunday and move out over the Atlantic Ocean on Sunday night.
Behind this system, a strong high pressure ridge building from the West will begin drying out the Eastern half of the nation. This system will stretch from the Rocky Mountains and over the Plains, then into the Eastern valleys. Expect sunny and dry conditions accompanying this ridge to create a mild warming trend over the Central U.S. Temperatures in the Northern Plains and Upper Midwest will reach into the 40s, while the Southern Plains will see readings in the 50s and 60s.
Elsewhere, a low pressure system off the West Coast will continue pushing a cold front toward that coast. This system is expected to reach the Pacific Northwest and northern California beginning late Monday night.
Temperatures in the lower 48 states ranged Saturday from a morning low of -18 degrees at West Yellowstone, Montana, to a high of 84 degrees at Harlingen, Texas.
Weather Underground: http://www.wunderground.com
National Weather Service: http://iwin.nws.noaa.gov