An intense low pressure system raced northeast from Colorado to southern Minnesota from the morning to the evening of December 15th. Strong to high wind gusts resulted across the area from the afternoon on the 15th into the early morning of the 16th, the strongest of which included 65 mph 2 miles NE of Mina, 65 mph 3 miles SE of Reliance, and 64 mph 1 mile NNW of Lees Corner. Additionally, this system produced dense fog, snow of up to 2, blowing snow, freezing rain, and a flash freeze from rapidly dropping temperatures following evening rain across northeastern South Dakota. Travel was adversely impacted.
Further southeast, this system produced a historic and unprecedented severe weather outbreak across Nebraska, Iowa, Minnesota, and Wisconsin, with record-setting numbers of tornadoes and significant thunderstorm wind gusts.

High Wind in CODINGTON, SOUTH DAKOTA
From 15-DEC-21 22:53:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in DEUEL, SOUTH DAKOTA
From 15-DEC-21 23:29:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in DEWEY, SOUTH DAKOTA
From 15-DEC-21 20:05:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in EDMUNDS, SOUTH DAKOTA
From 15-DEC-21 20:20:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in FAULK, SOUTH DAKOTA
From 15-DEC-21 20:00:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 EG
Reported by: COOP Observer

Minor tree damage was reported, with a few limbs and twigs down due to the high winds.

High Wind in HAND, SOUTH DAKOTA
From 15-DEC-21 22:29:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in HUGHES, SOUTH DAKOTA
From 15-DEC-21 20:00:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in HYDE, SOUTH DAKOTA
From 15-DEC-21 22:00:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in LYMAN, SOUTH DAKOTA
From 15-DEC-21 19:00:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in ROBERTS, SOUTH DAKOTA
From 15-DEC-21 21:36:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in STANLEY, SOUTH DAKOTA
From 15-DEC-21 19:25:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in DAY, SOUTH DAKOTA
From 15-DEC-21 23:00:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in MCPHERSON, SOUTH DAKOTA
From 15-DEC-21 22:30:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in POTTER, SOUTH DAKOTA
From 15-DEC-21 19:30:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in SPINK, SOUTH DAKOTA
From 15-DEC-21 20:00:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in JONES, SOUTH DAKOTA
From 15-DEC-21 20:00:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in SULLY, SOUTH DAKOTA
From 15-DEC-21 19:30:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in MARSHALL, SOUTH DAKOTA
From 15-DEC-21 20:00:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in GRANT, SOUTH DAKOTA
From 15-DEC-21 23:00:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in HAMLIN, SOUTH DAKOTA
From 15-DEC-21 23:30:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in BROWN, SOUTH DAKOTA
From 15-DEC-21 22:00:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in BUFFALO, SOUTH DAKOTA
From 15-DEC-21 19:54:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in CLARK, SOUTH DAKOTA
From 15-DEC-21 22:28:00 to 16-DEC-21 02:00:00 (CST-6)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet