Snow started falling across southeast Minnesota during the morning of the 20th and continued into the evening hours before ending. Once the snow ended, it was replaced by freezing drizzle which created a light coating of glaze on the fresh snow and exposed surfaces. The weight of the snow caused two roofs to collapse in Winona County. The debris blocked a railroad track and trapped numerous cattle, killing one. Snowfall totals generally ranged from 4 to 6 inches with ice accumulations around an eighth of an inch. The highest reported snow totals were 8 inches at Grand Meadow (Mower County) and 7.5 inches at Harmony (Fillmore County).

Winter Storm in MOWER, MINNESOTA
From 20-DEC-10 09:00:00 to 21-DEC-10 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow fell across the county, producing accumulations of 6 to 8 inches. A period of freezing drizzle occurred once the snow ended and produced up to an eighth of an inch of icing. The highest reported snowfall total was 8 inches at Grand Meadow.

Winter Storm in WINONA, MINNESOTA
From 20-DEC-10 11:00:00 to 21-DEC-10 03:00:00 (CST-6)
Property damage: 17.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Snow fell across the county, producing accumulations of 4 to 6 inches. A period of freezing drizzle occurred once the snow ended and produced up to an eighth of an inch of icing. The weight of the snow caused two building roofs to collapse. Debris from the first building fell onto a railroad track blocking it for over 18 hours. Debris from the second collapse trapped 64 cows, killing one and injuring several others. The highest reported snowfall total was 4.5 inches west of Altura.

Winter Storm in FILLMORE, MINNESOTA
From 20-DEC-10 10:00:00 to 21-DEC-10 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow fell across the county, producing accumulations of 6 to 7 inches. A period of freezing drizzle occurred once the snow ended and produced up to an eighth of an inch of icing. The highest reported snowfall total was 7.5 inches at Harmony.

Winter Storm in OLMSTED, MINNESOTA
From 20-DEC-10 10:00:00 to 21-DEC-10 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snow fell across the county, producing accumulations of 4 to 6 inches. A period of freezing drizzle occurred once the snow ended and produced up to an eighth of an inch of icing. The snowfall from this event pushed the total snow on the ground up to 29 inches at Rochester. This tied the record for the most snow ever on the ground. The highest reported snowfall total was 6.1 inches at Rochester.

Winter Storm in WABASHA, MINNESOTA
From 20-DEC-10 10:00:00 to 21-DEC-10 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snow fell across the county, producing accumulations of 5 to 6 inches. A period of freezing drizzle occurred once the snow ended and produced up to an eighth of an inch of icing. The highest reported snowfall total was 6 inches at Oak Center.

Winter Weather in HOUSTON, MINNESOTA
From 20-DEC-10 11:00:00 to 21-DEC-10 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snow fell across the county, producing accumulations of 4 to 5 inches. A period of freezing drizzle occurred once the snow ended and produced up to an eighth of an inch of icing. The highest reported snowfall total was 5 inches near La Crescent.

Winter Storm in DODGE, MINNESOTA
From 20-DEC-10 10:00:00 to 20-DEC-10 23:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

Heavy snow fell across the county, producing accumulations of 6 to 7 inches. A period of freezing drizzle occurred once the snow ended and produced up to an eighth of an inch of icing.