Heavy snow and strong winds developed across the region associated with a classic Colorado Low type storm system around mid-day Wednesday, February 22, with strong winds lingering into the early morning hours of Thursday, February 23rd. The highest total of 9.6 inches was observed 4 miles west-northwest of the Lake Cochrane State Recreational Area, with 8.5 inches observed in LaBolt, and 8 inches reported 6 miles east of Hayes. Official observations from Pierre, Watertown and Aberdeen were 7.5, 7.5 and 7.2 inches respectively.  A peak wind gust of 56 mph was recorded at Macs Corner, and 54 mph at Summit, and many other locations experienced peak gusts between 40 and 50 mph.
Between the afternoon of Wednesday, February 22nd and Thursday, February 23rd, wind chills fell as low as 41 below zero in Eureka, and 40 below zero in Ridgeview and Selby, while most of the rest of central, north central and northeast South Dakota experienced wind chills of between 30 below zero to 40 below zero.
Travel was severely impacted by this system. The South Dakota Department of Transportation had already closed Interstate 29 on February 21st, and closed Interstate 90 on February 22nd, in addition to advising no travel for just about every route east of Highway 83. Additionally, law enforcement in 10 counties also issued no travel advised during the course of the storm. It took well into Thursday, February 23rd to open many of these roads as many of them had drifted shut.
In the midst of the storm, with moderate intensity snow, winds of 30 mph and temperatures around zero producing wind chills of 25 below zero, Mobridge fire department was dispatched to fight a structure fire.

Blizzard in HYDE, SOUTH DAKOTA
From 22-FEB-23 17:30:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in HUGHES, SOUTH DAKOTA
From 22-FEB-23 17:53:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in CLARK, SOUTH DAKOTA
From 22-FEB-23 17:45:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in GRANT, SOUTH DAKOTA
From 22-FEB-23 18:05:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in SPINK, SOUTH DAKOTA
From 22-FEB-23 18:00:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in DAY, SOUTH DAKOTA
From 22-FEB-23 20:00:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in DEUEL, SOUTH DAKOTA
From 22-FEB-23 18:30:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in CODINGTON, SOUTH DAKOTA
From 22-FEB-23 21:00:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in FAULK, SOUTH DAKOTA
From 22-FEB-23 18:30:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in BROWN, SOUTH DAKOTA
From 22-FEB-23 17:53:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in CAMPBELL, SOUTH DAKOTA
From 22-FEB-23 19:00:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in SULLY, SOUTH DAKOTA
From 22-FEB-23 17:30:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Blizzard in ROBERTS, SOUTH DAKOTA
From 22-FEB-23 19:00:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in HAND, SOUTH DAKOTA
From 22-FEB-23 17:30:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Blizzard in MCPHERSON, SOUTH DAKOTA
From 22-FEB-23 21:00:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in HAMLIN, SOUTH DAKOTA
From 22-FEB-23 19:26:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Blizzard in EDMUNDS, SOUTH DAKOTA
From 22-FEB-23 14:23:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Blizzard in WALWORTH, SOUTH DAKOTA
From 22-FEB-23 21:30:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heavy Snow in STANLEY, SOUTH DAKOTA
From 22-FEB-23 08:00:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Eight inches of snow was measured 6 miles east of Hayes.

Blizzard in BUFFALO, SOUTH DAKOTA
From 22-FEB-23 17:00:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Blizzard in POTTER, SOUTH DAKOTA
From 22-FEB-23 21:30:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heavy Snow in LYMAN, SOUTH DAKOTA
From 22-FEB-23 08:00:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHS observer 7 miles north-northeast of Vivian reports 6 inches of snow.

Blizzard in MARSHALL, SOUTH DAKOTA
From 22-FEB-23 18:05:00 to 23-FEB-23 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS