Weather

A powerful winter storm will continue to produce windswept snow Monday from the central Plains to the upper Great Lakes. Accumulation will mainly range from 6 to 12 inches, with even heavier snowfall in spots. On the storm’s warm side, rain and areas of fog are expected across the lower Midwest. An icy mix will glaze surfaces in between the snow and rain. As colder air moves back into the Midwest in the storm’s wake at night, snow showers will occur across the mid-Mississippi Valley and around Chicago. There may be a few inches of snow near the border of Wisconsin and Illinois.

Ahead of the storm, mild air will expand across the Southeast and the Middle Atlantic. The warmer air will gradually advance across New England and upstate New York Monday night. It will be preceded by snow and an icy mix.

Along the storm’s cold front, rain and thunderstorms will develop over the Tennessee Valley and the central Gulf Coast. Cooler air will move into the South-Central States in the front’s wake.

Most of the Rockies will turn dry. Rain and mountain snow will affect parts of the Northwest and Central California. Southern California should remain dry.

A snowstorm that moved east of the southern Rockies on Sunday will spread windblown snow, some of it heavy, from central Nebraska to northern Michigan, on Monday. Strong winds will cause whiteout conditions in spots, especially on the open plains.