A mix of snow and sleet began during the late morning hours of December 1st, then quickly changed to freezing rain during the early afternoon.  The freezing rain continued into the late evening hours.  Many locations received one quarter to one half inch of ice accumulation, with almost three quarters of an inch of ice across Winnebago County.

Ice Storm in KANE, ILLINOIS
From 01-DEC-07 11:00:00 to 01-DEC-07 23:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ice Storm in KENDALL, ILLINOIS
From 01-DEC-07 11:00:00 to 01-DEC-07 23:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ice Storm in COOK, ILLINOIS
From 01-DEC-07 12:30:00 to 02-DEC-07 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Three eighths of an inch of ice accumulation was reported in Orland Hills.

Ice Storm in WINNEBAGO, ILLINOIS
From 01-DEC-07 10:30:00 to 01-DEC-07 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Sleet accumulated over one inch by 1 pm Saturday afternoon.  By 5 pm, about one half inch of ice accumulated and by 10 pm, three quarters of an inch of ice had accumulated.

Ice Storm in BOONE, ILLINOIS
From 01-DEC-07 10:45:00 to 01-DEC-07 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

One quarter inch of ice accumulation was reported in Belvidere.

Ice Storm in LEE, ILLINOIS
From 01-DEC-07 10:30:00 to 01-DEC-07 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

One quarter inch of ice accumulation was reported in Nelson, near the Lee/Whiteside County line.  One car was reported in a ditch.  One half inch of ice accumulation was reported one mile north of Franklin Grove.

Ice Storm in OGLE, ILLINOIS
From 01-DEC-07 10:30:00 to 01-DEC-07 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

At least one quarter inch of ice accumulation was reported in Oregon.

Ice Storm in MCHENRY, ILLINOIS
From 01-DEC-07 11:15:00 to 01-DEC-07 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One quarter inch of ice accumulation was reported two miles south of McHenry.

Ice Storm in DE KALB, ILLINOIS
From 01-DEC-07 11:00:00 to 01-DEC-07 22:00:00 (CST-6)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power lines and tree limbs were reported down in Sycamore.  Supporting posts for a golf range net buckled and snapped under the weight of the net, which became covered with ice.

Ice Storm in LAKE, ILLINOIS
From 01-DEC-07 12:30:00 to 02-DEC-07 00:00:00 (CST-6)
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One quarter inch of ice accumulation was reported on elevated and untreated surfaces in Fox Lake with downed power lines.  Three eighths of an inch of ice accumulation was reported in Wauconda and a half inch of ice accumulation was reported in Waukegan with downed tree limbs.

Ice Storm in DU PAGE, ILLINOIS
From 01-DEC-07 12:00:00 to 02-DEC-07 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A four inch diameter tree was downed due to ice.  One quarter inch of ice accumulation was reported in Carol Stream.

Ice Storm in GRUNDY, ILLINOIS
From 01-DEC-07 10:45:00 to 01-DEC-07 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

One quarter inch of ice accumulation was reported near Goose Lake.

Ice Storm in WILL, ILLINOIS
From 01-DEC-07 11:00:00 to 02-DEC-07 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

One quarter inch of ice accumulation was reported at the National Weather Service office in Romeoville.  Four tenths of an inch of ice accumulation was reported in New Lenox.

Ice Storm in LA SALLE, ILLINOIS
From 01-DEC-07 11:00:00 to 01-DEC-07 22:00:00 (CST-6)
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Ice accumulations up to one half inch were reported in Earlville with trees and power lines down.