Green Bay, Wisconsin – Travel conditions across the Green Bay area could deteriorate rapidly late Sunday night as a light snowfall gives way to dangerous blowing snow, sharply reduced visibility, and bitter Arctic cold.
According to the National Weather Service in Green Bay, widespread light, powdery snow is expected during the day Sunday, with accumulations up to around 1.5 inches. While snowfall amounts remain modest, the bigger threat develops late Sunday night as strong northwest winds increase with the arrival of Arctic air.
Wind gusts are expected to ramp up to 30 to 45 mph late Sunday night into Monday, strong enough to blow and drift freshly fallen snow. This combination could lead to sharply reduced visibility and near whiteout conditions at times, especially along exposed roadways and near the Bay of Green Bay and Lake Winnebago.
Roads including Interstate 41, U.S. Highway 29, Highway 54, and Highway 172 could quickly become snow-covered and treacherous as blowing snow reduces visibility and drifting obscures lanes. Even treated roads may deteriorate rapidly as winds overwhelm plowing efforts.
Behind the wind, temperatures will plunge, with wind chills dropping to between 20 and 30 degrees below zero by Monday morning and again Tuesday morning. Any moisture or slush on roadways is expected to freeze solid, compounding travel hazards.
Drivers are urged to avoid unnecessary travel late Sunday night into Monday if possible, slow down significantly, and be prepared for sudden visibility loss. Conditions may remain dangerous through Monday as strong winds and bitter cold persist, with additional advisories or warnings likely as the event unfolds.
