A record breaking surface low pressure area moved across the Northern Plains and brought high winds to all of central and northeast South Dakota from the early morning of the 26th into the early evening of the 27th. Sustained northwest winds of 40 to 50 mph with gusts to 60 to 75 mph caused scattered property damage across the region along with blowing several vehicles off the road.  Along with the high winds came snowfall of 1 to 5 inches which resulted in treacherous driving conditions.  Several schools started late on the 27th due to the slippery roads and high winds.
The high winds, combined with slippery roads at times, blew several semis and other vehicles off the road on Interstate-29 and at several other locations across the region. Only minor injuries occurred with these incidents. The high winds damaged many traffic signs and signals, downed many power lines and poles, along with downing branches and several trees. As a result, several hundred customers were without power for a time across the area. The high winds caused roof and siding damage to many buildings along with damaging some fences.  A shed was also completely destroyed near Sisseton.

High Wind in LYMAN, SOUTH DAKOTA
From 26-OCT-10 08:35:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 54.00 MG
Reported by: Mesonet

High Wind in CAMPBELL, SOUTH DAKOTA
From 26-OCT-10 10:10:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 35.00 MS
Reported by: Mesonet

High Wind in WALWORTH, SOUTH DAKOTA
From 26-OCT-10 09:49:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 53.00 MG
Reported by: ASOS

High Wind in POTTER, SOUTH DAKOTA
From 26-OCT-10 11:55:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 38.00 MS
Reported by: Mesonet

High Wind in STANLEY, SOUTH DAKOTA
From 26-OCT-10 08:00:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 50.00 MG
Reported by: COOP Observer

High Wind in JONES, SOUTH DAKOTA
From 26-OCT-10 11:24:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 53.00 MG
Reported by: Mesonet

High Wind in MCPHERSON, SOUTH DAKOTA
From 26-OCT-10 12:00:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 53.00 MG
Reported by: Mesonet

High Wind in HYDE, SOUTH DAKOTA
From 26-OCT-10 14:00:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 39.00 ES
Reported by: COOP Observer

High Wind in EDMUNDS, SOUTH DAKOTA
From 26-OCT-10 15:05:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 36.00 MS
Reported by: Mesonet

High Wind in CORSON, SOUTH DAKOTA
From 26-OCT-10 04:06:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 65.00 MG
Reported by: Mesonet

High Wind in HAND, SOUTH DAKOTA
From 26-OCT-10 14:00:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 35.00 ES
Reported by: Law Enforcement

High Wind in BUFFALO, SOUTH DAKOTA
From 26-OCT-10 07:00:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 35.00 ES
Reported by: COOP Observer

High Wind in FAULK, SOUTH DAKOTA
From 26-OCT-10 14:00:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 39.00 ES
Reported by: Law Enforcement

High Wind in DEWEY, SOUTH DAKOTA
From 26-OCT-10 08:55:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 38.00 MS
Reported by: Mesonet

High Wind in SULLY, SOUTH DAKOTA
From 26-OCT-10 08:00:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 63.00 MG
Reported by: Mesonet

High Wind in HUGHES, SOUTH DAKOTA
From 26-OCT-10 06:00:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 57.00 MG
Reported by: ASOS

High Wind in BROWN, SOUTH DAKOTA
From 26-OCT-10 12:25:00 to 27-OCT-10 18:00:00 (CST-6)
Magnitude: 54.00 MG
Reported by: ASOS

High winds damaged several signs in Aberdeen along with causing some power outages.

High Wind in SPINK, SOUTH DAKOTA
From 26-OCT-10 12:00:00 to 27-OCT-10 18:00:00 (CST-6)
Magnitude: 52.00 EG
Reported by: Law Enforcement

High Wind in MARSHALL, SOUTH DAKOTA
From 26-OCT-10 13:59:00 to 27-OCT-10 18:00:00 (CST-6)
Magnitude: 54.00 MG
Reported by: Mesonet

High Wind in DAY, SOUTH DAKOTA
From 26-OCT-10 14:00:00 to 27-OCT-10 18:00:00 (CST-6)
Magnitude: 42.00 MS
Reported by: Mesonet

High Wind in CLARK, SOUTH DAKOTA
From 26-OCT-10 14:00:00 to 27-OCT-10 18:00:00 (CST-6)
Magnitude: 35.00 ES
Reported by: Law Enforcement

High Wind in CODINGTON, SOUTH DAKOTA
From 26-OCT-10 15:00:00 to 27-OCT-10 18:00:00 (CST-6)
Magnitude: 53.00 MG
Reported by: ASOS

The high winds damaged some trees, roofs, stop lights, along with downing some power lines in Watertown.

High Wind in HAMLIN, SOUTH DAKOTA
From 26-OCT-10 13:55:00 to 27-OCT-10 18:00:00 (CST-6)
Magnitude: 55.00 MG
Reported by: Mesonet

High Wind in ROBERTS, SOUTH DAKOTA
From 26-OCT-10 13:35:00 to 27-OCT-10 18:00:00 (CST-6)
Magnitude: 56.00 MG
Reported by: ASOS

High Wind in GRANT, SOUTH DAKOTA
From 26-OCT-10 13:35:00 to 27-OCT-10 18:00:00 (CST-6)
Magnitude: 52.00 EG
Reported by: Law Enforcement

High Wind in DEUEL, SOUTH DAKOTA
From 26-OCT-10 15:20:00 to 27-OCT-10 18:00:00 (CST-6)
Magnitude: 41.00 MS
Reported by: Mesonet