A strong winter storm system brought heavy precipitation of 1 to 2 inches to areas along and east of the Mississippi River January 10 into January 11.  Much of eastern Iowa and northwest Illinois saw a wintry mix of sleet, snow, freezing rain and freezing drizzle.  Slick roads were common, with several accidents reported throughout the region.  There were numerous reports of ice accumulations between a tenth and a quarter of an inch.  Some trees were downed from the weight of the ice and numerous power outages were reported.  Snowfall amounts were generally between 1 and 3 inches.

Winter Storm in CEDAR, IOWA
From 10-JAN-20 18:00:00 to 11-JAN-20 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer in Lowden reported a quarter of an inch of ice and 1.5 inches of snow. Shortly after midnight on January 11, 2020 a tractor trailer slid off of Interstate 80 and fell over on its side near West Branch, Iowa or near mile marker 255. A passenger in the tractor trailer was killed. The crash was caused by icy conditions.

Winter Storm in JONES, IOWA
From 10-JAN-20 14:00:00 to 11-JAN-20 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 1 inch of snow 2 miles north northeast of Stone City, and there was a public report in Wyoming of two tenths of an inch of freezing rain.

Winter Storm in LINN, IOWA
From 10-JAN-20 14:00:00 to 11-JAN-20 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall reports from 1.1 inches from the COOP observer in Coggon to 1.9 inches from Broadcast Media in Marion and Cedar Rapids. Freezing rain reports ranged from 0.10 inches in Hiawatha to 0.20 inches in Cedar Rapids.

Winter Storm in JACKSON, IOWA
From 10-JAN-20 15:00:00 to 11-JAN-20 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The ASOS at the Dubuque Regional Airport reported 0.10 inches of ice with COOP Observers at Bellevue Lock and Dam 12 and Maquoketa reporting 0.2 to 0.7 inches of snow.

Winter Storm in IOWA, IOWA
From 10-JAN-20 14:00:00 to 11-JAN-20 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP Observer near Williamsburg reported a tenth of an inch of freezing rain.

Winter Storm in JOHNSON, IOWA
From 10-JAN-20 16:00:00 to 11-JAN-20 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a quarter of an inch of ice near North Liberty. There was also a public report of a quarter of an inch of ice in Coralville.

Winter Storm in MUSCATINE, IOWA
From 10-JAN-20 16:00:00 to 11-JAN-20 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP Observer 2 miles north of Muscatine reported a glaze of ice with 0.7 inches of snow.

Winter Storm in SCOTT, IOWA
From 10-JAN-20 19:15:00 to 11-JAN-20 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The official NWS observation at the NWS office in Davenport was a tenth of an inch of freezing rain. The official snowfall observation was an inch.

Winter Storm in KEOKUK, IOWA
From 10-JAN-20 14:00:00 to 11-JAN-20 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Freezing rain amounts were estimated between a glaze and a tenth of an inch.

Winter Storm in JEFFERSON, IOWA
From 10-JAN-20 14:00:00 to 11-JAN-20 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP Observer in Fairfield reported a quarter of an inch of freezing rain with a half an inch of snow.

Winter Storm in JEFFERSON, IOWA
From 10-JAN-20 14:00:00 to 11-JAN-20 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP Observer in Fairfield reported a quarter of an inch of freezing rain with a half an inch of snow.

Winter Storm in WASHINGTON, IOWA
From 10-JAN-20 16:00:00 to 11-JAN-20 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Freezing rain accumulations were estimated between a tenth to a third of an inch.