A strong upper air disturbance moved from Kansas to central Illinois on January 20, 2010. This was combined with a weak surface wave moving along a stationary front that extended from southern Missouri to Kentucky. Temperatures above the surface were above freezing, but below freezing at the ground. The result was an ice storm over much of eastern Iowa, western Illinois and extreme northeast Missouri, with widespread ice accumulations of 1/4 to 1/2 inch. Isolated thunderstorms also roamed across locations south of Highway 34 in southeast Iowa and extreme northeast Missouri. The ice knocked down some 1 to 2 inch diameter tree branches and smaller limbs, as winds gusted to 35 mph. There were also scattered power outages that lasted for up to 2 days, but no major outages were reported. In some areas, numerous accidents and vehicles sliding off the roads were reported.

Ice Storm in CEDAR, IOWA
From 20-JAN-10 09:00:00 to 20-JAN-10 14:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Durant measured ice accumulations of 0.40 inches with several tree branches down.

Ice Storm in DES MOINES, IOWA
From 20-JAN-10 05:25:00 to 20-JAN-10 13:50:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ice Storm in HENRY, IOWA
From 20-JAN-10 05:30:00 to 20-JAN-10 12:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ice Storm in BENTON, IOWA
From 20-JAN-10 08:15:00 to 20-JAN-10 13:45:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 3 miles southeast of Keystone estimated ice accumulations of 0.50 inches, with some 1 to 2 inch diameter tree branches down.

Ice Storm in IOWA, IOWA
From 20-JAN-10 06:30:00 to 20-JAN-10 12:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ice Storm in JEFFERSON, IOWA
From 20-JAN-10 04:55:00 to 20-JAN-10 11:55:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 5 miles northeast of Fairfield estimated ice accumulations of 0.40 inches with 0.75 inches of sleet.

Ice Storm in JOHNSON, IOWA
From 20-JAN-10 08:00:00 to 20-JAN-10 13:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ice Storm in KEOKUK, IOWA
From 20-JAN-10 05:30:00 to 20-JAN-10 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured ice accumulations of 0.50 inches at What Cheer.

Ice Storm in LOUISA, IOWA
From 20-JAN-10 07:00:00 to 20-JAN-10 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ice Storm in MUSCATINE, IOWA
From 20-JAN-10 08:55:00 to 20-JAN-10 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ice Storm in SCOTT, IOWA
From 20-JAN-10 09:15:00 to 20-JAN-10 13:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ice Storm in VAN BUREN, IOWA
From 20-JAN-10 04:30:00 to 20-JAN-10 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ice Storm in WASHINGTON, IOWA
From 20-JAN-10 06:55:00 to 20-JAN-10 12:55:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Brighton measured ice accumulations of 0.25 inches with 2 inch diameter tree branches down.