EF0 tornado in Dodge County, Wisconsin

This weak Dodge County tornado started in Columbia County, northeast of Fall River near the county line. It moved southeast and entered Dodge County where a creek crosses the county line about 1/2 mile north-northwest of the intersection of STH 73 and CTH D. This tornado resulted in only minor tree damage in Dodge County. The starting and ending locations for the Dodge County segment, with respect to lat/long pairs of numbers, were 43.41086/-89.00504 and 43.40230/-88.97749. DI#27 (TH), DOD2. Wind speeds estimated at 65 mph. Average path width was about 15 yards.

A slow-moving surface boundary, nearly parallel with the mid-level flow affected southern Wisconsin during the period of June 7th through June 9th. A strengthening low-level jet and strong moisture advection produced several rounds of thunderstorms during the period in the vicinity of this boundary. The atmosphere was very moist with precipitable water values around 2 inches. Low to mid-level wind flow supported training of flood-producing thunderstorms. There was sufficient vertical wind shear to allow for supercell development that resulted in 10 tornadoes spinning up in south-central and southeast Wisconsin on June 7th. A weak cool front pushed through southern Wisconsin late on the 8th/early on the 9th, finally ending the heavy rainfall.

During the evening of June 7th, several roads near STH 89 south of Columbus were washed out. STH 16 east of Columbus closed on June 8th due to high waters. A state-of-emergency was declared in Milwaukee County the evening of June 7th due to widespread flash flooding, and Milwaukee Mitchell Field was close for several hours due to high water levels.