Flash Flood in Rock County, Wisconsin
Flash Flood April 15, 2026 · Rock County, Wisconsin
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Emergency manager reports water over the road at County Highway A and Austin Road. Start and end times estimated from radar data.
The wider storm
An organized area of low pressure tracked along a stationary over the region and brought lines and clusters of strong thunderstorms and heavy rainfall to southern WI. Flash flooding occurred in spots from Rock County to the Milwaukee area. One storm produced a tornado in Walworth county with a brief path.
Began near Leyden (42.7010, -89.0844).
Other tornadoes from the same storm system
1 more tornado the National Weather Service filed under this storm episode.
Source: NOAA Storm Events Database, event 1330630. Narratives are written by the National Weather Service forecast office that issued the report.
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