Surface low pressure moved east from near Omaha, Nebraska as a warm front lifted north out of Missouri on January 17, 2011.  This produced light snow, at times briefly heavy, across northeast Iowa and northwest Illinois. This area was roughly along and north of Highway 30. Snowfall amounts were in the 3 to nearly 6 inch range. South winds gusting to around 35 mph produced considerable drifting. Elsewhere, warmer air aloft, combined with surface temperatures near or below freezing resulted in periods of light freezing rain and sleet. This was especially true in portions of eastern Iowa, western Illinois and extreme northeast Missouri. While ice and sleet accumulations were a tenth of an inch or less, a light glazing on some roadways caused a few vehicles to slide into ditches.

Winter Weather in CLINTON, IOWA
From 17-JAN-11 03:45:00 to 17-JAN-11 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

The CoCoRaHS observer measured 5.1 inches of snow 2 miles northwest of Delmar.

Winter Weather in DELAWARE, IOWA
From 17-JAN-11 01:30:00 to 17-JAN-11 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in DES MOINES, IOWA
From 17-JAN-11 03:05:00 to 17-JAN-11 12:35:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in DUBUQUE, IOWA
From 17-JAN-11 01:55:00 to 17-JAN-11 18:35:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The NWS observer near the Dubuque Regional Airport measured 4.7 inches of snow.

Winter Weather in HENRY, IOWA
From 17-JAN-11 02:30:00 to 17-JAN-11 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in IOWA, IOWA
From 17-JAN-11 00:55:00 to 17-JAN-11 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in JACKSON, IOWA
From 17-JAN-11 02:00:00 to 17-JAN-11 19:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A COOP observer measured 4.6 inches of snow 4 miles west of Maquoketa.

Winter Weather in JEFFERSON, IOWA
From 17-JAN-11 02:00:00 to 17-JAN-11 10:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in JOHNSON, IOWA
From 17-JAN-11 01:55:00 to 17-JAN-11 18:25:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in JONES, IOWA
From 17-JAN-11 01:15:00 to 17-JAN-11 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 5.2 inches of snow 2 miles northeast of Olin.

Winter Weather in KEOKUK, IOWA
From 17-JAN-11 01:30:00 to 17-JAN-11 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in LEE, IOWA
From 17-JAN-11 02:45:00 to 17-JAN-11 11:35:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in LINN, IOWA
From 17-JAN-11 01:15:00 to 17-JAN-11 22:25:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in BENTON, IOWA
From 17-JAN-11 00:15:00 to 17-JAN-11 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in LOUISA, IOWA
From 17-JAN-11 02:30:00 to 17-JAN-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in MUSCATINE, IOWA
From 17-JAN-11 02:30:00 to 17-JAN-11 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in SCOTT, IOWA
From 17-JAN-11 03:15:00 to 17-JAN-11 20:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in VAN BUREN, IOWA
From 17-JAN-11 02:45:00 to 17-JAN-11 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WASHINGTON, IOWA
From 17-JAN-11 02:00:00 to 17-JAN-11 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in BUCHANAN, IOWA
From 17-JAN-11 00:15:00 to 17-JAN-11 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 5.0 inches of snow at Jesup.

Winter Weather in CEDAR, IOWA
From 17-JAN-11 02:00:00 to 17-JAN-11 19:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer measured 5.0 inches of snow at Lowden.