National Weather Service United States Department of Commerce

Winter Storm and Cold for the Weekend

A prolonged period of moderate to heavy snow affects the region tonight through early Sunday morning, resulting in hazardous road conditions. Portions of northeast Iowa into southwest Wisconsin could see snowfall amounts of 12+". Colder air arrives for Sunday through Tuesday with overnight wind chills in the single digits to teens below zero. Read More >

Overview

Widespread showers and thunderstorms, over a 2-day period,  brought heavy rain and other severe weather to the region on Monday, Sept. 3rd and Tuesday, Sept. 4th, continuing into the morning hours of Wednesday, Sept. 5th.

The heaviest rain Monday into Tuesday fell over northeast Iowa into southwest Wisconsin.  The next day and night, the heaviest rain fell Tuesday evening into Wednesday morning. Rainfall rates were 2-3 inches per hour at times.

Widespread street and other urban flooding occurred, along with rapid rises on area rivers and streams.  Some area rivers climbed back into MAJOR flood stage from flooding the week before, and other rivers approached flood stage for the first time through the active pattern. Rock and mudslides were reported in some of the hilly locations, and there were numerous road closures (especially in southwest Wisconsin).

There was also sporadic wind damage and one tornado (EF-1) as the storms moved through.

24 hour rainfall through 6 am Sep 5 2018
24 hour rainfall through 6 am Sep 5, 2018
nws logo Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.
nws logo