Northern Illinois Storms Charge In with 80 MPH Gusts, Tornado Risk — SevereWX
Northern Illinois under imminent severe threat as storms push east
A potent line of thunderstorms approaching northern Illinois from the Iowa border is packing a punch, with recent gusts already hitting 60 mph near Davenport. The Storm Prediction Center's latest Mesoscale Discussion (1077) flags a high risk for damaging winds up to 80 mph and one or two QLCS tornadoes this evening, driven by strong low-level shear despite modestly recovering air mass buoyancy (1000-2000 J/kg).
Storms remain robust post-earlier convection, and rapid destabilization ahead of the line supports the severe potential. Expect the heaviest action through late evening, prompting a new tornado watch soon—95% issuance probability within the hour. Peak threats include:
- Winds: 65-80 mph
- Tornadoes: 85-110 mph (EF1-EF2)
- Hail: 1-1.75 inches
This affects portions of northern Illinois, including areas near Rockford, DeKalb, and Joliet—key population centers in the path. With Chicago's northern suburbs in play, impacts could be widespread.
Stay tuned to local NWS offices (LOT, DVN) for watch updates. Radar shows the line strengthening—don't get caught off guard.
Preparedness: Review your severe weather plan, ensure mobile alerts are on, and know your safe spot. Have a NOAA radio ready and avoid travel if warnings issue.