Frontogenetic forcing along and advancing arctic cold push produced widespread light snowfall. Before saturating to cold enough temperatures, there was a brief period of light freezing drizzle.

Winter Weather in LYON, IOWA
From 21-DEC-17 10:00:00 to 21-DEC-17 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Periods of late morning freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated one to two inches.  Snowfall of 1.5 inches was reported at Rock Rapids.

Winter Weather in OSCEOLA, IOWA
From 21-DEC-17 10:00:00 to 21-DEC-17 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Periods of late morning freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated one to two inches.  Snowfall of 1.0 inches was reported at Sibley.

Winter Weather in DICKINSON, IOWA
From 21-DEC-17 11:00:00 to 21-DEC-17 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Periods of late morning and early afternoon freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated one to two inches.  Snowfall of 1.6 inches was reported at Milford.

Winter Weather in SIOUX, IOWA
From 21-DEC-17 10:00:00 to 21-DEC-17 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Periods of late morning and early afternoon freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated around an inch.  Snowfall of 1.0 inches was reported at Rock Valley.

Winter Weather in O'BRIEN, IOWA
From 21-DEC-17 10:00:00 to 21-DEC-17 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Periods of late morning freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated around an inch.  Snowfall of 1.0 inches was reported at Sheldon.

Winter Weather in CLAY, IOWA
From 21-DEC-17 11:00:00 to 21-DEC-17 21:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Periods of late morning freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated around an inch.  Snowfall of 1.0 inches was reported at Spencer.

Winter Weather in BUENA VISTA, IOWA
From 21-DEC-17 11:00:00 to 21-DEC-17 23:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Periods of early afternoon freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated around an inch.  Snowfall of 1.0 inches was reported at Storm Lake.

Winter Weather in CHEROKEE, IOWA
From 21-DEC-17 11:00:00 to 21-DEC-17 21:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Periods of late morning and early afternoon freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated to an inch or less.  Snowfall of 0.5 inch was reported at Cherokee.

Winter Weather in WOODBURY, IOWA
From 21-DEC-17 12:00:00 to 21-DEC-17 22:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Periods of early afternoon freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated to an inch or less.  Snowfall of 1.0 inch was reported at Sioux City.

Winter Weather in IDA, IOWA
From 21-DEC-17 12:00:00 to 21-DEC-17 22:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Periods of early afternoon freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated to an inch or less.  Snowfall of 1.4 inch was reported 3 miles NNE of Battle Creek.

Winter Weather in PLYMOUTH, IOWA
From 21-DEC-17 10:00:00 to 21-DEC-17 21:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Periods of late morning and early afternoon freezing drizzle produced a light glaze on roadways, prior to snowfall which accumulated to an inch or less.  Snowfall of 0.5 inch was reported at Remsen.