The storm system that pounded through the Midwest and Southern Plains Tuesday will continue advancing northeastward into the New England with a cold front through the Mid-Atlantic and southern states.
Moisture ahead of the cold front will aid in producing widespread showers and thunderstorms from the Ohio and Tennessee valleys eastward across the Eastern and Southern U.S. In particular, there is a risk of severe thunderstorms across the Mid-Atlantic and from southern Appalachians to south-central Texas. Significant hail and gusty winds are expected, especially along the entire frontal boundary. On the northwest side of the storm system, snow is expected to continue over parts of the Upper Midwest into the Upper Great Lakes through Wednesday afternoon. Moreover, some snow will begin to fall over portions of northern New England on Wednesday morning and continue into Thursday morning. Northern Maine may see rain mixed with ice late Wednesday and early Thursday.
Moving to the West, light rain or showers are possible over northern California Wednesday morning. A Pacific system will then approach from the west later in the day, bringing rain and mountain snow from Oregon and northern California into the Intermountain West Wednesday night into Thursday.
Elsewhere, isolated snow showers are possible over the Northern Plains Wednesday morning.