The alert occurred at 03:31 AM on Jun 26 2013.
The site being monitored is LOT in Chicago, IL.
The site is operating in VCP mode 212.
McHenry County Wx triggered the alert because precipitation exceeded 50 dBZ (VIP level 10).
The maximum detected precipitation level is 60 dBZ (VIP level 12).
McHenry County Wx precipitation sensitivity is set to 50.
The current radar product is Short Range Composite Reflectivity (NCR).
The text description for the maximum detected precipitation level is: "4" to 8"/hr very heavy rain: marble size hail possible".
