A storm system moved out of the Rockies and into the Plains and Upper Midwest late Friday, March 23rd. This system was very dynamic and had snowfall rates up to 2 inches per hour. In addition, thunder-snow was reported from several airports in southwest Minnesota (ASOS/AWOS).
One major influence of this storm system was a very persistent, dry easterly flow from an area of high pressure that was centered across southeast Canada. This caused a very sharp cutoff from several inches of snow, to nothing in a span of 20 to 30 miles.  This snowfall line was nearly parallel to the Upper Minnesota River Valley, southeast to around Albert Lea.  North of this line, snowfall amounts dropped off dramatically.
Some of the heavier snowfall totals were:
13.5 inches in Lucan.
11.0 inches in St. James.
10.0 inches in Albert Lea.
9.6 inches in Redwood Falls.
9.0 inches in Blue Earth.
9.0 inches in Vesta.

Winter Storm in BLUE EARTH, MINNESOTA
From 23-MAR-18 22:00:00 to 24-MAR-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured between 6 to 9 inches of snow in southern Blue Earth County. Further to the north along the Minnesota River, amounts were around 4-6 inches.

Winter Storm in BROWN, MINNESOTA
From 23-MAR-18 21:00:00 to 24-MAR-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured between 6 to 9 inches of snow across the county.

Winter Storm in CHIPPEWA, MINNESOTA
From 24-MAR-18 00:00:00 to 24-MAR-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured around 6 inches of snow along the Minnesota River, near Montevideo.

Winter Storm in FARIBAULT, MINNESOTA
From 23-MAR-18 21:30:00 to 24-MAR-18 10:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured between 6 to 9 inches of snow across the county.

Winter Storm in FREEBORN, MINNESOTA
From 23-MAR-18 22:00:00 to 24-MAR-18 10:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured between 6 to 10 inches of snow across the county, with lesser amounts near Dodge and Mower Counties.

Winter Storm in LAC QUI PARLE, MINNESOTA
From 24-MAR-18 00:00:00 to 24-MAR-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured around 6 inches of snow along Yellow Medicine County.

Winter Storm in MARTIN, MINNESOTA
From 23-MAR-18 21:00:00 to 24-MAR-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured between 6 to 8 inches of snow across the county.

Winter Storm in NICOLLET, MINNESOTA
From 24-MAR-18 00:00:00 to 24-MAR-18 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured around 6 inches of snow along the Minnesota River.

Winter Storm in REDWOOD, MINNESOTA
From 23-MAR-18 20:00:00 to 24-MAR-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured 6 to 10 inches of snow across the county, with local observer near Lucan measuring 13.5 inches of snow.

Winter Storm in RENVILLE, MINNESOTA
From 23-MAR-18 21:30:00 to 24-MAR-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured around 6 to 8 inches of snow along the Minnesota River.

Winter Storm in WASECA, MINNESOTA
From 24-MAR-18 01:00:00 to 24-MAR-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured between 4 to 7 inches across the county.

Winter Storm in WATONWAN, MINNESOTA
From 23-MAR-18 21:00:00 to 24-MAR-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of trained spotters, weather observers, and the local law enforcement officials measured between 6 to 9 inches across the county.

Winter Storm in YELLOW MEDICINE, MINNESOTA
From 23-MAR-18 23:00:00 to 24-MAR-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Local officials measured around 6 inches of snow across the county.