With cold air well-established, an approaching jet in rapid northwest flow produced a narrow band of snowfall across the area. Amounts either side of a 50 mile-wide band of 3 to 5 inches snowfall dropped off fairly quickly, especially on the south side of the band.

Winter Weather in MINER, SOUTH DAKOTA
From 29-DEC-17 06:00:00 to 29-DEC-17 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall of 3 to 5 inches during the morning and early afternoon, including 4.5 inches at Howard, produced hazardous road conditions.  Winds remained at most 10 to 15 mph during the event with only minor drifting.  Wind chills were from 10 below to 15 below zero.

Winter Weather in LAKE, SOUTH DAKOTA
From 29-DEC-17 06:00:00 to 29-DEC-17 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall of 3 to 5 inches during the morning and early afternoon, including 4.0 inches at Madison, produced hazardous road conditions.  Winds remained at most 10 to 15 mph during the event with only minor drifting.  Wind chills were from 10 below to 15 below zero.

Winter Weather in MOODY, SOUTH DAKOTA
From 29-DEC-17 06:00:00 to 29-DEC-17 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall of 3 to 5 inches during the morning and early afternoon, including 4.4 inches at Flandreau, produced hazardous road conditions.  Winds remained at most 10 to 15 mph during the event with only minor drifting.  Wind chills were from 10 below to 15 below zero.

Winter Weather in MCCOOK, SOUTH DAKOTA
From 29-DEC-17 07:00:00 to 29-DEC-17 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall of 2 to 4 inches during the morning and early afternoon, including 3.0 inches at Bridgewater, produced hazardous road conditions.  Winds remained at most 10 to 15 mph during the event with only minor drifting.  Wind chills were around 10 below zero.

Winter Weather in MINNEHAHA, SOUTH DAKOTA
From 29-DEC-17 07:00:00 to 29-DEC-17 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Snowfall of 2 to 4 inches during the morning and early afternoon, including 3.1 inches at NWS Sioux Falls, produced hazardous road conditions.  Winds remained at most 10 to 15 mph during the event with only minor drifting.  Wind chills were around 10 below zero.

Winter Weather in LINCOLN, SOUTH DAKOTA
From 29-DEC-17 07:00:00 to 29-DEC-17 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Snowfall of 2 to 4 inches during the morning and early afternoon, including 2.9 inches six miles south of Sioux Falls, produced hazardous road conditions.  Winds remained at most 10 to 15 mph during the event with only minor drifting.  Wind chills were around 10 below zero.

Winter Weather in BEADLE, SOUTH DAKOTA
From 29-DEC-17 05:00:00 to 29-DEC-17 13:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Snowfall of 3 to 5 inches during the morning and early afternoon, including 3.9 inches at Huron, produced hazardous road conditions.  Winds remained at most 10 to 15 mph during the event with only minor drifting. Wind chills were from 10 below to 15 below zero.

Winter Weather in KINGSBURY, SOUTH DAKOTA
From 29-DEC-17 05:00:00 to 29-DEC-17 13:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall of 3 to 4 inches during the morning and early afternoon, including 3.4 inches at Iroquois, produced hazardous road conditions.  Winds remained at most 10 to 15 mph during the event with only minor drifting.  Wind chills were from 10 below to 15 below zero.

Winter Weather in SANBORN, SOUTH DAKOTA
From 29-DEC-17 05:00:00 to 29-DEC-17 13:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall of 3 to 4 inches during the morning and early afternoon, including 4.0 inches at 4 miles north northeast Forestburg, produced hazardous road conditions.  Winds remained at most 10 to 15 mph during the event with only minor drifting. Wind chills were from 10 below to 15 below zero.