Falling temperatures and strong north to northwest winds produced dangerous wind chills throughout the first day of February and on the morning of February 2nd. The extreme cold came as a system which produced snow and blowing snow at the end of January moved east away from the area.

Extreme Cold/Wind Chill in AURORA, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills reached the 35 to 40 below zero range at times despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in DAVISON, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in MINNEHAHA, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in MCCOOK, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in GREGORY, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in CHARLES MIX, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in HUTCHINSON, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in DOUGLAS, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in TURNER, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in LINCOLN, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in YANKTON, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in BON HOMME, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in CLAY, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in UNION, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in BEADLE, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills reached the 35 to 40 below zero range at times despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in KINGSBURY, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills reached the 35 to 40 below zero range at times despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in BROOKINGS, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills reached the 35 to 40 below zero range at times despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in JERAULD, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills reached the 35 to 40 below zero range at times despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in SANBORN, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills reached the 35 to 40 below zero range at times despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in MINER, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills reached the 35 to 40 below zero range at times despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in LAKE, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills reached the 35 to 40 below zero range at times despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in BRULE, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills reached the 35 to 40 below zero range at times despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in MOODY, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills reached the 35 to 40 below zero range at times despite slowly decreasing winds, as temperatures fell further below zero.

Extreme Cold/Wind Chill in HANSON, SOUTH DAKOTA
From 01-FEB-11 00:00:00 to 02-FEB-11 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

North to northwest winds averaging 15 to 30 mph combined with temperatures dropping below zero to produce wind chills of 20 to 35 below zero on February 1st. On the night of February 1st and the early morning of February 2nd, wind chills continued in this very cold range despite slowly decreasing winds, as temperatures fell further below zero.