Strong to severe thunderstorms with damaging winds and tornadoes will be possible Wednesday for portions of Northern/Central Florida and Southeast Georgia. Strong to severe thunderstorms will be possible for the Ohio Valley into the interior Northeast. Heavy rainfall and flash flooding will be possible for Northern Florida, the Southeast, and the Mid Atlantic. Moderate to heavy snow will be possible for portions of the Upper Great Lakes into the Mid Mississippi Valley. Heavy snow and strong winds are expected for the Cascades, Sierra Nevada, and the Northern Rockies.
A squall line currently extending from Georgia through the Florida Panhandle into the Eastern Gulf of Mexico will continue to advance easy through the day. Instability ahead of the line may be somewhat limited by cloud cover, however, some thunderstorms will have the potential for damaging winds and tornadoes. Over the remainder of Florida into the Carolinas, severe thunderstorms with the potential for small hail and wind gusts to 55 miles per hour will be possible.
Across the Ohio River Valley and Interior Northeast, some severe thunderstorms will be possible across the region on Wednesday. While instability will be weak, damaging winds and a few tornadoes will be possible.
Very heavy rain is expected over Northern Florida, the Southeast, and Mid Atlantic. 2-3 inches of rainfall are expected.
Moderate to heavy snow will be possible across the Upper Great Lakes and Mid Mississippi Valley. 3-6 inches of snow will be possible on the backside of the low as it lifts northeastward. Precipitation will begin as rain and then transition to snow. 3-6 inches of snow will be possible from Northern Michigan into Chicago, causing major travel impacts for the region. Further to the southwest, 1-3 inches of snow will be possible.
An area of low pressure will continue to track inland allowing for heavy snow across the Cascades, Sierra Nevada, and the Northern Rockies with the heaviest snow in the highest elevations. 4-10 inches of snow are possible below 4500 feet and over a foot in the highest elevations. Very strong winds will allow for blizzard conditions at times.
