Freezing rain and freezing drizzle developed across portions of northern Illinois during the morning of January 22nd and continued into the evening.  The freezing rain mixed with snow at times and transitioned to mainly rain by early Wednesday morning, January 23rd, across parts of the Chicago Metro area but transitioned to mainly snow across northwest Illinois.  A semi slid off Interstate 39 between Rochelle and Rockford during the early afternoon of January 22nd due to the icy conditions.  Ice accumulation amounts included 0.32 inches at the Sugar Grove Airport (ARR); 0.26 inches at the DuPage Airport (DPA); 0.16 inches at O'Hare Airport (ORD); 0.16 inches at Waukegan (UGN); 0.14 inches at the Wheeling Airport (PWK) and 0.04 inches at the Rockford Airport (0.04).  Storm total snow amounts included 5.7 inches at the Rockford Airport; 5.5 inches in Mount Morris; 5.1 inches in Genoa; 5.0 inches one mile southwest of Harvard; 4.5 inches in Highwood; 3.8 inches in McHenry and 1.5 inches at Chicago O'Hare Airport.

Winter Weather in DU PAGE, ILLINOIS
From 22-JAN-19 09:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Winter Weather in KANE, ILLINOIS
From 22-JAN-19 09:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Winter Weather in KENDALL, ILLINOIS
From 22-JAN-19 09:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WILL, ILLINOIS
From 22-JAN-19 08:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in GRUNDY, ILLINOIS
From 22-JAN-19 08:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in COOK, ILLINOIS
From 22-JAN-19 09:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Winter Weather in LAKE, ILLINOIS
From 22-JAN-19 09:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Winter Weather in MCHENRY, ILLINOIS
From 22-JAN-19 09:00:00 to 22-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in LA SALLE, ILLINOIS
From 22-JAN-19 08:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in LEE, ILLINOIS
From 22-JAN-19 08:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in OGLE, ILLINOIS
From 22-JAN-19 08:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in BOONE, ILLINOIS
From 22-JAN-19 08:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WINNEBAGO, ILLINOIS
From 22-JAN-19 08:00:00 to 23-JAN-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in KANKAKEE, ILLINOIS
From 22-JAN-19 08:00:00 to 22-JAN-19 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter