National Weather Service United States Department of Commerce

A Blizzard Warning is now in effect for all of southern Wisconsin until 4 PM CDT Monday afternoon. A period of blizzard conditions are expected later tonight into early Monday morning. Heavy snowfall rates to 1 inch per hour at times, with north to northwest wind gusts to 40 to 45 MPH, will bring visibility down to one quarter mile or less. Treacherous travel conditions are expected! Stay off the roads!
Significant snow accumulation remains on track tonight into Monday afternoon. Highest totals are expected north and west of Madison, where precipitation changed over to snow earlier today. Totals will be lower further south and east, where changeover to snow will occur the latest.
Gusty north-northwest winds will combine with moderate to heavy snow to support blowing snow and reduced visibilities tonight through Monday morning. This could lead to periods of near blizzard conditions across southern Wisconsin. Even if your location is expected to see lower snow accumulation, the winds and blowing snow will still lead to substantial travel impacts through Monday morning. Avoid travel if possible!