Green Bay, Wisconsin – Heavy rain arriving tonight could quickly lead to rising water levels, with multiple rounds of storms setting the stage for flooding concerns across northeast Wisconsin into midweek.
According to the National Weather Service in Green Bay, periods of rain will develop tonight and continue through Sunday, followed by another stronger system Monday night into Tuesday. Total rainfall is expected to exceed 1 inch across most of the region, with localized amounts reaching 2 to 3 inches in some areas.
Cities including Green Bay, Appleton, Oshkosh, and Manitowoc could see repeated rounds of rain and embedded thunderstorms, especially Monday night when stronger storms may develop. Roads such as I-41 and Highway 172 may experience ponding and reduced visibility during heavier downpours.
The combination of heavy rainfall and ongoing snowmelt across northern Wisconsin and Upper Michigan is expected to push rivers and streams higher, increasing the risk for flooding by midweek. The Menominee River is specifically highlighted for potential moderate to major flooding as runoff increases.
Residents should monitor river levels, avoid flooded roadways, and prepare for changing conditions through Tuesday. Additional watches or warnings are likely as this prolonged wet pattern continues.
