It's never good (click here) to have to do these analyses this late at night, but the tornado that hit Woodridge, IL and nearby suburbs of Chicago was likely a strong EF3 based on an impressive 18,000+ ft TDS and a 66 kt Vrot, both remarkable for a QLCS tornado!
The heat is too high and the storm winds reached a geophysics maximum. The increased heat is now expressed in tornadoes. The season started earlier and now the storms are carrying tornadoes. This was not a hurricane off the Gulf or the Atlantic.
