Sep 11, 2022
An unusually slow moving low pressure system with abundant moisture produced 5-9 inches of rain in a 24 hour period from early morning on September 11th to early morning on September 12th. Numerous roads and hundreds of basements experienced flooding in portions of Waukesha, Milwaukee, and Racine Counties. Some rivers and creeks also flooded.
Source: NOAA National Weather Service Storm Events Database (event 1048652). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Milwaukee County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.