UPDATE: Information from the National Weather Service:
Estimated peak wind: 80 mph
Path length /Statute/: 0.70 miles
Path width /Maximum/: 25 yards
Start date: August 9, 2018
Start time: 347 PM
Start location: North, Northwest Deerfield, WI
End date: August 9, 2018End time: 351 PM
End location: East Central Deerfield, WI
SURVEY SUMMARY: The tornado began in an open field just northwest of Truman Dr. in the north, northwest portion of Deerfield, WI. It crossed Main St. where a tree was uprooted and other branches were downed. The tornado tracked to the southeast, affecting businesses along Industrial Park Road, where one building sustained a blown in garage door and partial roof damage. Much of the roofing material fell into the building, with other plywood panels deposited in adjacent parking and storage lots. The tornado continued southeast through the Deerfield Community Park resulting in sporadic tree damage. Insulation from the damaged roof alongIndustrial Park Road was deposited along the track through the park. The tornado path ended just southeast of the park.
UPDATE (WKOW) -- The National Weather Service has confirmed a tornado touched down in Deerfield at around 3:50 P.M. Thursday afternoon.
It's still unclear what strength the tornado was.
The tornado caused damage to an industrial building and a home, and knocked down trees in the area as well. Playground equipment in the Deerfield Community Park was also damaged.