During the early morning of Sunday, February 20th, a large area of precipitation developed along the leading edge of very warm air across far southwest Minnesota.  This area of precipitation expanded northeast across far southern Minnesota very slowly due to the much drier air that had settled across the Upper Midwest.
Initially, a mixture of sleet and freezing rain occurred along the Iowa border. The precipitation quickly mixed with, and changed to snow as it moved north across far southern Minnesota.  Most of the precipitation ended in far southern Minnesota by mid morning, but a coating of freezing rain, sleet and snow added up to around 2 to 4 inches from Fairmont to Albert Lea.  Farther northward, especially areas north of interstate 90, received a quick 4 to 6 inches from Mankato to Owatonna by 11 am.
Farther north, the precipitation was all snow, and it became very heavy by late morning across southern Minnesota, including the Twin Cities metro area, and into portions of far west central Wisconsin.
Snowfall rates increased substantially by the mid to later afternoon with amounts quickly adding up to 6 to 9 inches across the southern suburbs of the Twin Cities.
Thundersnow also occurred during the morning in far southern Minnesota, and in the afternoon, and early evening around the Twin Cities Metro area where snowfall rates increased to 2 inches per hour. Lightning was observed in St. Paul, Minnesota during the height of the storm. Another band of heavy snowfall occurred in west central Minnesota where areas around Montevideo received 9 inches by 5 pm.
Due to the persistent dry air mass across central Minnesota, snow didn't start to accumulate until after 6 pm, with mainly areas across central Minnesota not seeing any snowfall until late evening.
This first system quickly dissipated Sunday night, but another disturbance reformed across the Dakotas, and moved into Minnesota by Monday morning. This system provided an additional two to four inches across portions of southern Minnesota, and west central Wisconsin.
The following are some of the higher totals reported across the area.
19.0 inches around Eden Prairie
19.0 inches near Madison
18.6 inches around Bloomington
18.0 inches around Burnsville
18.0 inches around Credit River
17.5 inches near Springfield
16.3 inches near Montevideo.

Winter Storm in POPE, MINNESOTA
From 20-FEB-11 08:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six and ten inches.

Winter Storm in RAMSEY, MINNESOTA
From 20-FEB-11 09:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between twelve and sixteen inches. Lightning was observed during the evening by several individuals.

Winter Storm in REDWOOD, MINNESOTA
From 20-FEB-11 07:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and twelve inches, with locally higher in the southeast corner.

Winter Storm in RENVILLE, MINNESOTA
From 20-FEB-11 07:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and twelve inches.

Winter Storm in RICE, MINNESOTA
From 20-FEB-11 08:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and ten inches.

Winter Storm in SCOTT, MINNESOTA
From 20-FEB-11 08:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between ten and eighteen inches.

Winter Storm in SHERBURNE, MINNESOTA
From 20-FEB-11 12:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six and ten inches.

Winter Storm in SIBLEY, MINNESOTA
From 20-FEB-11 07:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and twelve inches.

Winter Storm in STEARNS, MINNESOTA
From 20-FEB-11 09:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six and twelve inches.

Winter Storm in STEELE, MINNESOTA
From 20-FEB-11 07:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and twelve inches during this event. However, during the onset of this event, some minor ice fell in the form of freezing rain and sleet. Thundersnow was also reported during the morning which created snowfall rates for a brief time up to 2 inches per hour.

Winter Storm in STEVENS, MINNESOTA
From 20-FEB-11 08:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six and twelve inches.

Winter Storm in SWIFT, MINNESOTA
From 20-FEB-11 07:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six and twelve inches, with locally higher in the southern part of the county.

Winter Storm in TODD, MINNESOTA
From 20-FEB-11 17:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six to eight inches across mainly the southern part of the county.

Winter Storm in WASECA, MINNESOTA
From 20-FEB-11 07:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and twelve inches during this event. However, during the onset of this event, some minor ice fell in the form of freezing rain and sleet. Thundersnow was also reported during the morning which created snowfall rates for a brief time up to 2 inches per hour.

Winter Storm in WASHINGTON, MINNESOTA
From 20-FEB-11 09:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between twelve to fifteen inches.

Winter Storm in WATONWAN, MINNESOTA
From 20-FEB-11 06:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and twelve inches during this event. However, during the onset of this event, some minor ice fell in the form of freezing rain and sleet.

Winter Storm in WRIGHT, MINNESOTA
From 20-FEB-11 09:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and twelve inches.

Winter Storm in YELLOW MEDICINE, MINNESOTA
From 20-FEB-11 07:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between ten and fifteen inches.

Winter Storm in ANOKA, MINNESOTA
From 20-FEB-11 10:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between ten to fourteen inches.

Winter Storm in BENTON, MINNESOTA
From 20-FEB-11 16:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six to ten inches.

Winter Storm in BLUE EARTH, MINNESOTA
From 20-FEB-11 07:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and twelve inches during this event. However, during the onset of this event, some minor ice fell in the form of freezing rain and sleet. Thundersnow was also reported during the morning which created snowfall rates for a brief time up to 2 inches per hour.

Winter Storm in BROWN, MINNESOTA
From 20-FEB-11 07:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and twelve inches, with locally 18 inches near Springfield.

Winter Storm in CARVER, MINNESOTA
From 20-FEB-11 09:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between ten to fifteen inches.

Winter Storm in CHIPPEWA, MINNESOTA
From 20-FEB-11 07:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between ten to fourteen inches, with locally 16 inches near Montevideo.

Winter Storm in CHISAGO, MINNESOTA
From 20-FEB-11 12:00:00 to 21-FEB-11 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six and nine inches.

Winter Storm in DAKOTA, MINNESOTA
From 20-FEB-11 08:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between ten and eighteen inches.

Winter Storm in DOUGLAS, MINNESOTA
From 20-FEB-11 14:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six to eight inches.

Winter Storm in FARIBAULT, MINNESOTA
From 20-FEB-11 05:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between two and five inches during this event. However, during the onset of this event, a mixture of freezing rain and sleet occurred and added up to one tenth of an inch, especially along the Iowa border. Thundersnow was also reported during the morning which created snowfall rates for a brief time up to 2 inches per hour.

Winter Storm in FREEBORN, MINNESOTA
From 20-FEB-11 07:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between two and five inches during this event. However, during the onset of this event, a mixture of freezing rain and sleet occurred and added up to one tenth of an inch, especially along the Iowa border. Thundersnow was also reported during the morning which created snowfall rates for a brief time up to 2 inches per hour.

Winter Storm in GOODHUE, MINNESOTA
From 20-FEB-11 08:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between ten and fourteen inches.

Winter Storm in HENNEPIN, MINNESOTA
From 20-FEB-11 09:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between twelve and twenty inches.

Winter Storm in ISANTI, MINNESOTA
From 20-FEB-11 12:00:00 to 21-FEB-11 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six and nine inches.

Winter Storm in KANDIYOHI, MINNESOTA
From 20-FEB-11 08:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and ten inches.

Winter Storm in LAC QUI PARLE, MINNESOTA
From 20-FEB-11 07:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between ten and fourteen inches, with locally 20 inches near Madison.

Winter Storm in LE SUEUR, MINNESOTA
From 20-FEB-11 07:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and ten inches. Thundersnow was also reported during the morning which created snowfall rates for a brief time up to 2 inches per hour.

Winter Storm in MARTIN, MINNESOTA
From 20-FEB-11 04:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between two and five inches during this event. However, during the onset of this event, a mixture of freezing rain and sleet occurred and added up to one tenth of an inch, especially along the Iowa border.  Thundersnow was also reported during the morning which created snowfall rates for a brief time up to 2 inches per hour.

Winter Storm in MCLEOD, MINNESOTA
From 20-FEB-11 08:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and ten inches.

Winter Storm in MEEKER, MINNESOTA
From 20-FEB-11 08:30:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and ten inches.

Winter Storm in MILLE LACS, MINNESOTA
From 20-FEB-11 16:00:00 to 21-FEB-11 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six to eight inches across the southern part of the county.

Winter Storm in MORRISON, MINNESOTA
From 20-FEB-11 17:00:00 to 21-FEB-11 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between six to ten inches across mostly the southern part of the county.

Winter Storm in NICOLLET, MINNESOTA
From 20-FEB-11 07:00:00 to 21-FEB-11 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Snowfall amounts averaged between eight and twelve inches.