A storm system will affect parts of the east through the weekend with the main low-pressure system moving east through the northern Gulf of Mexico today and then across FL on Saturday. Rain showers are expected to affect areas from the Ohio River Valley southward into the southeast states today and build east into the Mid Atlantic and southern New England late tonight and early Saturday. There will be a chance for severe storms in southern FL late this evening into the overnight as an area of storms is expected to build through this region producing a severe wind gust and isolated tornado threat.
Further north and west just some light wintry precipitation possible for parts of the northern Plains, Midwest, and Great Lakes with nothing major until Sunday afternoon and evening in northern New England when a stronger disturbance moving through this region could produce a couple of inches of snow in VT, NH, and northern NY.
Heading west into the Plains unseasonable warmth builds northward with widespread 60s possible as far north as the MT/Canada border Saturday, and a few 70s possible as far north as southwest NE on Sunday.
Finally still active in the Pacific Northwest, but this time it will continue southeastward through the weekend bringing accumulating snow chances from northern NV east-northeastward to southern MT/ northern WY by Sunday and Sunday night.