National Weather Service United States Department of Commerce

Unsettled Week From Northwest To Rockies; A Major Wet Storm System Over the East Late This Week

An active wet weather pattern will impact the Pacific Northwest into Inter-mountain West and Rockies, as two more storm systems arrive before the weekend. Expect heavy to excessive rain and widespread mountain snow. A couple of these systems will combine and evolve into a major very wet storm system with heavy to excessive rain, Thursday into the weekend, for the eastern half of the country. Read More >

Light snow will overspread southern WI after 3 AM and through Wednesday morning. Areas of light freezing rain and a glaze of ice will also be possible over south central WI. Snow accumulations of 2 inches or less are forecast. Untreated roads will likely become slippery for the Wednesday morning commute.
The persistent cold is causing ice to expand on inland lakes and shore areas. Swamps are slowly freezing and inland lake ice is getting thicker. Reports range from open water to 6 inches in parts of central and northern Wisconsin. The WI DNR does not report any significant ice buildup across southern WI. As, always, check the local ice conditions before venturing out.