Jesse Walters of JWSevereWeather chases a MCS from Walworth, Wisconsin into McHenry County, Illinois on July 21, 2016.
Shot 1, 2, 3 – Approaching MCS, severe warned, just north of Walworth, WI on route 67.
Shot 4 – Being overtaken by the MCS, 2 miles south of Walworth, WI.
Shot 5 – MCS overtaking the Illinois/Wisconsin state line on route 14/67 north of Harvard, Il
Shot 6 – Moderate winds at the weight station just north of Harvard, Il on route 14.
Shot 7, 8 – Lightning and thunder observed in Oakwood Hills, Illinois at the police station.
Shot 9, 10, 11, 12 – Core of the MCS in Oakwood Hills, Illinois at the police station. Lightning, thunder, moderate rainfall and winds.