Multiple tornadoes touched down across southern Wisconsin on July 16, 2025, prompting a series of tornado warnings for several communities including Prairie du Sac, Lodi, Merrimac, Deerfield, Lake Mills, Oakland, Portage, Dekorra, Fox Lake, Waupun, Horicon, Iron Ridge, Rubicon, and Mayville. A tornado was confirmed on the ground near Fox Lake. The National Weather Service offices in Chicago and Milwaukee coordinated efforts to gather damage reports and survey affected areas, with particular attention to locations such as Dodgeville, Mazomanie, Beaver Dam, Hustisford, Madison, Sauk City, Monticello, and Prairie du Sac. Authorities and storm spotters provided real-time updates, and residents were encouraged to submit photos and damage reports to assist with assessment. Video evidence of the tornadoes, including a massive twister impacting Madison and surrounding towns, was shared publicly. The line of storms moved out of the region by late evening, with officials continuing to evaluate the extent of the damage.