May 22—ROLLINGSTONE, Minn. — The tornado that touched down in Winona County on Tuesday evening was an EF1, according to the National Weather Service. The tornado was confirmed at 6:11 p.m. Tuesday, May 21, near Rollingstone, about 9 miles west of Winona. In an update on Wednesday afternoon, the National Weather Service in La Crosse said the tornado reached peak wind speeds of around 105 mph. According to NOAA, EF1 tornadoes reach speeds of up to 110 mph.