Green Bay, Wisconsin – Severe storms are expected to intensify across Wisconsin Monday night, with the greatest threat for damaging winds, large hail, and possible tornadoes arriving after 8 p.m. and continuing into early Tuesday morning.
According to the National Weather Service in Green Bay, initial scattered storms this morning and early afternoon may bring hail up to 1 inch in diameter, primarily affecting central and east-central Wisconsin. While the early storms are less likely to become severe, attention shifts toward late afternoon and evening, when more isolated but intense storms could develop.
From 2 p.m. to 7 p.m., a 20–30% chance exists for storms to redevelop. If isolated storms form during this window, they could produce all severe hazards, including strong tornadoes. After 8 p.m., confidence rises to 70–80% for an organized line of storms sweeping eastward, posing a major threat for damaging winds and tornadoes across much of the state.
Residents in cities like Green Bay, Appleton, Wausau, and Oshkosh should closely monitor warnings and have multiple ways to receive emergency alerts. Non-essential travel is discouraged after dark, and residents are advised to charge devices, secure outdoor objects, and identify safe shelter locations ahead of time.
Severe weather warnings remain possible through early Tuesday morning, and additional updates will be issued as conditions evolve.