Flash Flood in Calumet County, Wisconsin

Rainfall of 2.5 to 3.5 inches of rain in a short time caused flash flooding in the southeast portion of Appleton during the evening. Multiple roads were under water and closed with stalled vehicles in the deeper water.

Thunderstorms developed during the afternoon on Saturday (7/13) as the area reached its convective temperature. These initial storms produced large hail up to 3 inches, gusty winds, and heavy rainfall across central Wisconsin. Flash Flooding was reported in Wausau as 2 to 3 inches of rain fell during the afternoon.

A line of severe thunderstorms, associated with a mesoscale convective vortex, then tracked through central and east-central Wisconsin during the late afternoon and early evening hours on Saturday (7/13). These storms produced damaging winds, small hail, and heavy rainfall. Flash Flooding was noted in the Appleton area as 2.5 to 3.5 inches of rain fell during the early evening hours.