A winter storm brought a mix of precipitation and gusty winds to eastern Iowa, northwest Illinois, and far northeast Missouri on Monday, March 15. Precipitation initially began as rain but changed to snow during the early morning hours of the 15th. The snow began to mix with sleet during the morning as cooler air moved into to the area aloft. Eventually, precipitation changed to all snow, and continued before winding down by midday and early afternoon. A light freezing drizzle continued along the Highway 20 corridor into the early evening hours.  Winds did gust to 50 MPH during the event making it hard to measure precipitation with drifting and blowing snow and sleet.

Winter Storm in DUBUQUE, IOWA
From 15-MAR-21 04:00:00 to 15-MAR-21 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The official NWS observation at the Dubuque Regional Airport reported 3.8 inches of snow.  There was also a public report of 5.4 inches of snow 1 mile west northwest.

Winter Storm in JACKSON, IOWA
From 15-MAR-21 04:00:00 to 15-MAR-21 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer snowfall reports ranged from 2.5 inches in Maquoketa to 5.0 inches of snow and sleet near Bellevue.

Winter Storm in DELAWARE, IOWA
From 15-MAR-21 04:00:00 to 15-MAR-21 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A CoCoRaHS observer 5.4 miles west southwest of Hopkinton reported 4.0 inches of snow. The COOP observer in Manchester reported 3.6 inches of snow. Light freezing drizzle after continued after the snow ended during the early afternoon.

Winter Storm in JONES, IOWA
From 15-MAR-21 04:00:00 to 15-MAR-21 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The COOP observer in Monticello reported 3.0 inches of snow and sleet. Trained spotters snowfall reports ranged from 2.5 inches in Wyoming to  2.8 inches 3 miles south southwest of Center Junction.

Winter Storm in CLINTON, IOWA
From 15-MAR-21 06:00:00 to 15-MAR-21 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

COOP observer snowfall reports ranged from 2.0 inches in Clinton to 4.0 inches in DeWitt. An off duty NWS employee reported 4.5 inches of snow in DeWitt.

Winter Storm in BUCHANAN, IOWA
From 15-MAR-21 04:00:00 to 15-MAR-21 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer 4 miles west of Stanley reported 4.2 inches of snow and sleet as well as a glaze of ice.  There were several hours of freezing drizzle after the snow came to an end during the early afternoon.

Winter Storm in SCOTT, IOWA
From 15-MAR-21 05:00:00 to 15-MAR-21 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The official NWS observation at the Davenport Municipal Airport reported 2.6 inches of snow and sleet. 8 tenths of which fell as sleet. An NWS Employee in Park View repored 4.0 inches of snow.

Winter Weather in BENTON, IOWA
From 15-MAR-21 04:00:00 to 15-MAR-21 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A CoCoRaHS observer reported 0.5 inches of sleet in far southeastern Benton County. COOP observer repors ranged from 0.9 inches in Belle Plaine to 1.0 inches in Vinton.

Winter Weather in LINN, IOWA
From 15-MAR-21 04:00:00 to 15-MAR-21 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A trained spotter in Coggon reported 3.0 inches of sleet and snow. A CoCoRaHS observer 2.7 miles northeast of Cedar Rapids reported 1.5 inches of snow and sleet. COOP observer reports ranged from 1.0 inches in Cedar Rapids.

Winter Weather in CEDAR, IOWA
From 15-MAR-21 04:00:00 to 15-MAR-21 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer  in Lowden reported 2.0 inches of snow and sleet. A trained spotter in Standwood reported 2.4 inches of snow and sleet.