National Weather Service United States Department of Commerce

Winter Weather Brings Dangerous Travel Conditions Across the Northern U.S.

Heavy lake effect snow will persist downwind of the Great Lakes through early Saturday. Snow squalls with heavy snow and gusty winds will create dangerous travel in the Interior Northeast due to low visibility and slippery roads. A major winter storm will bring moderate to heavy, accumulating snow and gusty winds from the eastern Plains to the western Great Lakes today through Saturday. Read More >

Light snow is underway, mainly south of Madison at this time. Expect snow to slowly spread in coverage east and northeast through the rest of the early morning hours.
A significant winter storm remains on track to move across southern Wisconsin Saturday through Saturday night. A Winter Storm Warning remains in effect early Saturday through daybreak Sunday for all southern Wisconsin counties. Travel conditions will quickly deteriorate late Saturday morning through Saturday evening. Delay Saturday travel plans if possible!
Expected snow accumulations have trended up slightly this afternoon. A widespread 8-12 inch snowfall is now expected across all of southern Wisconsin, with the majority of accumulation occurring from late Saturday morning through Saturday evening. Higher totals to 14"+ are possible south of I-94 & US-18, in addition to near the Kettle Moraine in east-central and southeast Wisconsin.
Snowfall rates will gradually increase Saturday morning, reaching their peak during the afternoon across all of southern Wisconsin. Snowfall rates will gradually taper across the west during the evening, but will remain heavy through midnight further east. Travel is expected to become treacherous by Saturday afternoon; delay travel plans if possible!
Snow will end quickly on Sunday morning, though gusty northwest winds will result in blowing snow potential through the afternoon hours. The blowing snow could lead to lingering travel impacts into early Sunday evening, particularly to the east of I-39. Budget extra time for any travel planned for Sunday!