A low pressure system deepened over northern Minnesota and set the Wisconsin state record for the lowest recorded barometric pressure. This system was responsible for high winds across portions of southwest and central Wisconsin in the morning hours of October 26th and the daytime hours of the 27th. Automated weather observing equipment measured wind gusts of 59 miles per hour at La Crosse (La Crosse) and 58 miles per hour at Platteville (Grant). The high winds knocked down a tree onto a vehicle and injuring the driver in Crawford County. Numerous trees blown were blown down, some power lines also came down causing power outages across western and central Wisconsin. Sporadic damage to roofs and buildings also occurred.

High Wind in TREMPEALEAU, WISCONSIN
From 26-OCT-10 11:15:00 to 27-OCT-10 16:30:00 (CST-6)
Magnitude: 60.00 EG
Property damage: 11.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down across the county. The worst damage occurred between Whitehall and Strum where some of the fallen trees blocked roads or fell on cars.  Power lines were also blown down in some communities.  A peak wind gust of 69 mph occurred at 11:06 p.m. CST (12:06 a.m. CDT) on October 26th near Arcadia.

High Wind in ADAMS, WISCONSIN
From 26-OCT-10 11:30:00 to 27-OCT-10 17:30:00 (CST-6)
Magnitude: 52.00 EG
Property damage: 23.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were blown down across the county, including the areas around Dellwood, County Road Z, and Arkdale. Some sporadic fires were started from trees falling onto power lines. A few vehicle collisions also occurred with downed trees.  Two pine trees, nearly seventy feet tall, blew down in the city of Friendship. One of the pine trees landed on a parked full size pick-up truck and partially crushed the cab.

High Wind in VERNON, WISCONSIN
From 26-OCT-10 11:00:00 to 27-OCT-10 17:10:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 18.00K
Crop damage: 0.00K
Reported by: COOP Observer

Part of a roof was blown off a machine shed, about one-third of a barn was damaged and shingles were blown off several roofs.  Trees were blown down over many areas of the county, including La Farge where power losses occurred.  A peak wind gust of 58 mph hit the Viroqua Airport at 1:15 a.m. CST (2:15 a.m. CDT) during the early morning hours of October 27th.

High Wind in MONROE, WISCONSIN
From 26-OCT-10 11:00:00 to 27-OCT-10 16:45:00 (CST-6)
Magnitude: 50.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Newspaper

Many trees were blown down along with power lines across the county.  Some trees blocked parts of roads as well.  There were sporadic power outages in the cities of Oakdale and Sparta, with downed fences in the cities of Sparta and Cashton.  The wind blew down a power line that ignited a hillside outside of Sparta. Firefighters were not able to fight the fire until the power was shut off to the line. Only a small amount of land was burned with the firefighters on the scene for about 2 hours.

High Wind in JACKSON, WISCONSIN
From 26-OCT-10 11:30:00 to 27-OCT-10 16:30:00 (CST-6)
Magnitude: 52.00 EG
Property damage: 21.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and power lines were blown down across the county, including in the communities of Melrose, Taylor, and Black River Falls.  Some power outages were reported in Black River Falls. A barn near Merrillan was blown down and an out building was damaged along County Road B west of U.S. Highway 12.

High Wind in JUNEAU, WISCONSIN
From 26-OCT-10 11:15:00 to 27-OCT-10 17:15:00 (CST-6)
Magnitude: 53.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were reported down across the county along with a few power lines and poles. Some of the power line and pole damage was due to falling trees.  A peak gust of 61 mph was reported near Necedah at 11:48 a.m. CST (12:48 p.m. CDT) on October 27th.  Volk Field had a gust of 56 mph at 1:55 a.m. CST (2:55 a.m. CDT) on October 27th.

High Wind in LA CROSSE, WISCONSIN
From 26-OCT-10 11:00:00 to 27-OCT-10 17:00:00 (CST-6)
Magnitude: 60.00 MG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Besides numerous trees and power lines blown down, many traffic signs were damaged and there were occasional brief power outages.  A wind gust of 59 mph was recorded at the La Crosse Municipal Airport at 12:17 a.m. CST (1:17 a.m. CDT) on October 27th, followed by a gust of 58 mph on the south side of La Crosse around 1:25 a.m. CST (2:25 a.m. CDT).  A peak gust of 69 mph hit areas southeast of La Crosse during the evening of October 26th at 7:20 p.m. CST (8:20 p.m. CDT).  Winds topped at 54 mph at the National Weather Service office.

High Wind in TAYLOR, WISCONSIN
From 26-OCT-10 12:35:00 to 27-OCT-10 14:30:00 (CST-6)
Magnitude: 52.00 EG
Property damage: 9.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The roof blown off a business and numerous trees were down in the city of Medford. Power outages reported in the city of Medford and Rib Lake.  A wind gust of 54 mph was recorded at the Medford Airport at 10:55 p.m. CST (11:55 p.m. CDT) during the evening of October 26th.

High Wind in CLARK, WISCONSIN
From 26-OCT-10 12:15:00 to 27-OCT-10 15:40:00 (CST-6)
Magnitude: 52.00 EG
Property damage: 33.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Widespread trees and power lines were knocked down across the county. Several customers lost power in Neillsville, Loyal and Abbotsford. One pole shed was destroyed in the town of Eaton. Two street lights were blown down in the city of Neillsville. The strongest winds started in the evening hours of October 26th and continued into the morning hours of October 27th.  A peak wind gust of 60 mph was recorded 7 miles east of Loyal at 6:45 a.m. CST (7:45 a.m. CDT) on October 27th.  The roof was blown off a forty by eighty foot shed along State Highway 73 and a tree was blown down near the city of Greenwood as well.

High Wind in BUFFALO, WISCONSIN
From 26-OCT-10 11:20:00 to 27-OCT-10 16:10:00 (CST-6)
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Newspaper

Trees were blown down across various areas of the county.  In addition, an awning was blown off a business building in the city of Mondovi.

High Wind in CRAWFORD, WISCONSIN
From 26-OCT-10 11:45:00 to 27-OCT-10 17:10:00 (CST-6)
Magnitude: 61.00 EG
Property damage: 19.00K
Crop damage: 0.00K
Reported by: Newspaper

Trees were blown down over various parts of the county, including one large Cottonwood tree that fell onto a vehicle and injured the driver.  Some of these downed trees brought down power lines leading to power outages in the cities of Soldiers Grove and Gays Mills.  Home siding and roof damage was also reported in the county.  An amateur radio operator reported a 70 mph peak wind gust near Mt.Sterling at 4:18 p.m. CST (5:18 p.m. CDT) late in the event on October 27th.  On the other hand, a peak wind gust of 64 mph was reported on ridge tops several miles northeast of Prairie du Chien early in the event, around 1:20 p.m. CST (2:20 p.m. CDT) on October 26th.  At the Prairie du Chien airport, wind gusts topped at 48 mph during the early afternoon hours of October 27th.  The amount of hours with such high wind was one of the unusual things about this storm.

High Wind in GRANT, WISCONSIN
From 26-OCT-10 12:00:00 to 27-OCT-10 17:35:00 (CST-6)
Magnitude: 55.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down over various areas of the county and there was sporadic roof damage.  The roof on an apartment building in the city of Muscoda was damaged.  One tree fell in Platteville and caused extensive damage.  A door on a business in Lancaster also sustained damage from a gust.  The peak wind gust in Platteville was 58 mph at 11:55 a.m. CST (12:55 p.m. CDT) on October 27th, but gusts hit 63 mph near Union, WI at 1:20 p.m. CST (2:20 p.m. CDT).

High Wind in RICHLAND, WISCONSIN
From 27-OCT-10 09:45:00 to 27-OCT-10 09:45:00 (CST-6)
Magnitude: 52.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several reports of trees blown down with some of them falling down on power lines across the county.