An intense low pressure system deepened over northern Minnesota, producing a tight pressure gradient across South Dakota and prolonged period of strong northwest winds from the morning of the 26th and continuing through the afternoon of the 27th. Sustained winds of 30 to 50 mph, with gusts to 70 mph, were recorded across the South Dakota plains. Some trees were blown down and other minor damage was reported.  Light snow across northwestern South Dakota caused blowing snow and reduced visibilities.

High Wind in HARDING, SOUTH DAKOTA
From 26-OCT-10 05:00:00 to 27-OCT-10 15:00:00 (MST-7)
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High Wind in PERKINS, SOUTH DAKOTA
From 26-OCT-10 07:00:00 to 27-OCT-10 15:00:00 (MST-7)
Magnitude: 37.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in NORTHERN MEADE CO PLAINS, SOUTH DAKOTA
From 26-OCT-10 09:00:00 to 27-OCT-10 15:00:00 (MST-7)
Magnitude: 55.00 MG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: ASOS

A gas station sign was blown over by the wind.

High Wind in BUTTE, SOUTH DAKOTA
From 26-OCT-10 12:00:00 to 27-OCT-10 14:00:00 (MST-7)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High Wind in ZIEBACH, SOUTH DAKOTA
From 26-OCT-10 08:00:00 to 27-OCT-10 15:00:00 (MST-7)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in NORTHERN FOOT HILLS, SOUTH DAKOTA
From 27-OCT-10 10:00:00 to 27-OCT-10 14:00:00 (MST-7)
Magnitude: 35.00 ES
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in RAPID CITY, SOUTH DAKOTA
From 26-OCT-10 05:00:00 to 27-OCT-10 14:00:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

High Wind in CUSTER CO PLAINS, SOUTH DAKOTA
From 26-OCT-10 06:00:00 to 27-OCT-10 14:00:00 (MST-7)
Magnitude: 35.00 ES
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in PENNINGTON CO PLAINS, SOUTH DAKOTA
From 26-OCT-10 05:00:00 to 27-OCT-10 15:00:00 (MST-7)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High Wind in HAAKON, SOUTH DAKOTA
From 26-OCT-10 09:00:00 to 27-OCT-10 12:00:00 (MST-7)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High Wind in JACKSON, SOUTH DAKOTA
From 26-OCT-10 07:00:00 to 27-OCT-10 14:00:00 (MST-7)
Magnitude: 43.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in MELLETTE, SOUTH DAKOTA
From 26-OCT-10 07:00:00 to 27-OCT-10 14:00:00 (CST-6)
Magnitude: 37.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in TRIPP, SOUTH DAKOTA
From 26-OCT-10 09:00:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High Wind in TODD, SOUTH DAKOTA
From 26-OCT-10 09:00:00 to 27-OCT-10 14:00:00 (CST-6)
Magnitude: 36.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High Wind in STURGIS / PIEDMONT FOOTHILLS, SOUTH DAKOTA
From 26-OCT-10 03:00:00 to 27-OCT-10 14:00:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in SOUTHERN MEADE CO PLAINS, SOUTH DAKOTA
From 26-OCT-10 05:00:00 to 27-OCT-10 14:00:00 (MST-7)
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High Wind in OGLALA LAKOTA, SOUTH DAKOTA
From 26-OCT-10 08:00:00 to 26-OCT-10 18:00:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High Wind in HERMOSA FOOTHILLS, SOUTH DAKOTA
From 26-OCT-10 06:00:00 to 27-OCT-10 14:00:00 (MST-7)
Magnitude: 35.00 ES
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in FALL RIVER, SOUTH DAKOTA
From 26-OCT-10 08:00:00 to 26-OCT-10 16:00:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High Wind in SOUTHERN FOOT HILLS, SOUTH DAKOTA
From 27-OCT-10 12:00:00 to 27-OCT-10 14:00:00 (MST-7)
Magnitude: 35.00 ES
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS