A National Weather Service official storm survey team will be headed to Northwest Illinois early this morning to survey damage from confirmed tornadoes in portions of Jo Daviess, and Carroll counties. This information will be available on the NWS Quad Cities web page by mid afternoon.
Yesterday, severe thunderstorms were expected to form along and north of a stationary front positioned near Interstate 80 during the afternoon. This process occurred, but the front was NOT stationary as expected. Strong instability formed and the atmosphere was not capped off by hot air aloft, but the front lifted north to around Highway 20 as a warm front. This relatively minor shift north, saved the Quad Cities and other nearby metro areas from potential significant storm danger. This is wonderful thing! If you prepared for the storm, thought about how you would receive warnings, and where you would take shelter, your time was not wasted. You'll need to know those things again sometime, and your life may depend on it.
National Weather Service Quad Cities Staff