Wisconsin Flash Flood Watch | Effective 04/18/2026 03:41
Public safety alert, emergency alert, and weather alert
Description:
* WHAT...Flash flooding due to the potential compromise of the
Caledonia-Lewiston Levee. The Wisconsin Department of Natural
Resources has indicated that the Calendonia-Lewiston Levee along
the Wisconsin River may become compromised as the river levels
rise. If this takes place, a rapid inundation of water is expected
along the south and west side of the river. The City of Portage is