A winter storm moved across the region during the day on December 29th and brought snow along and north of a line from Gladstone to Galesburg Illinois. The heaviest snow fell in the counties along the Interstate 80 corridor where 4 to about 6.5 inches of snow was reported. 1 to 4 inches of snow was reported to the south and north of that line with the lightest amounts along the U.S. Highway 20 corridor and along a line from Gladstone to Galesburg.

Winter Storm in ROCK ISLAND, ILLINOIS
From 29-DEC-17 07:00:00 to 29-DEC-17 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The official NWS observation at the Moline-Quad Cities Airport was 6.7 inches.

Winter Storm in WHITESIDE, ILLINOIS
From 29-DEC-17 08:00:00 to 29-DEC-17 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall reports ranged from 3.0 inches at Prophetstown to 3.4 inches at Rock Falls.

Winter Storm in HENRY, ILLINOIS
From 29-DEC-17 09:00:00 to 29-DEC-17 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall reports ranged from 4.0 inches 1 mile east of Kewanee to 5.2 inches 5 mile east south east of Moline.

Winter Storm in BUREAU, ILLINOIS
From 29-DEC-17 09:00:00 to 29-DEC-17 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall reports ranged from 4.2 inches 5 miles north northeast of Princeton to 5.5 inches 2 miles north of Tiskilawa.

Winter Storm in PUTNAM, ILLINOIS
From 29-DEC-17 09:00:00 to 29-DEC-17 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer in Hennepin reported 6.5 inches of snow.

Winter Weather in MERCER, ILLINOIS
From 29-DEC-17 09:00:00 to 29-DEC-17 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter estimated 4.5 inches of snow in Aledo.

Winter Weather in HENDERSON, ILLINOIS
From 29-DEC-17 09:00:00 to 29-DEC-17 21:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 3.2 inches of snow.

Winter Weather in WARREN, ILLINOIS
From 29-DEC-17 09:00:00 to 29-DEC-17 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A COOP observer in Monmouth reported 3.6 inches of snow.

Winter Weather in CARROLL, ILLINOIS
From 29-DEC-17 08:00:00 to 29-DEC-17 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall reports ranged from a CoCORaHS observer reported 2.0 inches in Chadwick to 2.8 inches from a COOP observer in Mount Carroll.

Winter Weather in JO DAVIESS, ILLINOIS
From 29-DEC-17 08:00:00 to 29-DEC-17 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall reports ranged from 1.4 inches from a COOP observer in Stockton to a traind spotter report of 1.7 inches 1 mile east southeast of Nora.

Winter Weather in STEPHENSON, ILLINOIS
From 29-DEC-17 10:00:00 to 29-DEC-17 23:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall reports ranged from 1.2 inches from a CoCoRaHS in Winslow to 1.6 inches from a COOP observer in Freeport.