A storm system moving through the Eastern U.S. today will bring severe thunderstorms and heavy rainfall to the South and heavy snow to the Great Lakes and Northeast. Gusty winds are expected for most areas east of the Mississippi River through tomorrow.
Rain will be ongoing throughout the day over the Southeast, with severe storms expected to develop later today in the Lower Mississippi Valley and head eastward across the Southeast through the day into the evening. The primary severe threats will be damaging winds and large hail, with a few tornadoes also possible.
From the Tennessee Valley to the Carolina Coast, locally heavy rain is possible with some snow in the higher elevations of the Southern Appalachians.
In the Mid-Atlantic to Southern New England, snow will mix with and change to rain by this evening as warm air moves northward up the East Coast. On the cold side of the system, rain will change back to snow across the Midwest today and in the Upper Ohio Valley and interior Northeast tonight.
Near the Great Lakes, locally heavy snow is possible. Portions of Upper Michigan could see over a foot of new snow by Thursday afternoon both from the system and from any lake-effect snow showers that develop after the system passes by. Some locally heavy snow is also possible in Northern New England and northern New York State.
After the system moves out, lake-effect snow showers are expected to develop off of the Great Lakes through Friday. The tail end of the front will bring showers and thunderstorms to the Florida Peninsula tomorrow.