Showers and thunderstorms developed and moved eastward across parts of eastern Iowa during the evening of July 22.  Some of the storms were severe producing damaging winds in excess of 60 mph.  The Jones County Fair was particularly hard hit with high winds lasting from about 950 pm CDT until about 1015 pm CDT, which damaged some of the equipment set up for the fair and concerts.

Thunderstorm Wind in LINN, IOWA
From 22-JUL-11 20:43:00 to 22-JUL-11 20:43:00 (CST-6)
Location: HIAWATHA
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 70 mph wind gust was recorded 5 miles north northeast of Cedar Rapids, IA at 943 pm CDT July 22.

Thunderstorm Wind in JONES, IOWA
From 22-JUL-11 20:50:00 to 22-JUL-11 20:50:00 (CST-6)
Location: MONTICELLO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph blew down some tree limbs and partially blew down an entire tree in Monticello, IA at 950 pm CDT July 22.

Thunderstorm Wind in JONES, IOWA
From 22-JUL-11 20:50:00 to 22-JUL-11 20:50:00 (CST-6)
Location: MONTICELLO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph were observed at the fairgrounds in Monticello, IA at 950 pm CDT July 22.

Thunderstorm Wind in JONES, IOWA
From 22-JUL-11 20:55:00 to 22-JUL-11 20:55:00 (CST-6)
Location: MONTICELLO MUNI ARPT
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A 59 mph wind gust was recorded by the AWOS at the Monticello Regional Airport at 955 pm CDT July 22.

Thunderstorm Wind in CEDAR, IOWA
From 22-JUL-11 21:13:00 to 22-JUL-11 21:13:00 (CST-6)
Location: WEST BRANCH
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph blew down a large tree branch in West Branch, IA at 1013 pm CDT July 22.

Thunderstorm Wind in CEDAR, IOWA
From 22-JUL-11 21:13:00 to 22-JUL-11 21:13:00 (CST-6)
Location: CEDAR BLUFF
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts estimated to be 65 mph blew down a tree over a road about 8 miles north of West Branch, IA at 1013 pm CDT July 22.

Thunderstorm Wind in JONES, IOWA
From 22-JUL-11 21:00:00 to 22-JUL-11 21:15:00 (CST-6)
Location: MONTICELLO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Wind gusts estimated to be up to 60 mph were observed at the Jones County Fairgrounds in Monticello, IA between 1000 pm and 1015 pm CDT July 22.

Thunderstorm Wind in LINN, IOWA
From 22-JUL-11 21:20:00 to 22-JUL-11 21:20:00 (CST-6)
Location: MT VERNON
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts estimated to be 65 mph blew down some trees and power lines in Mount Vernon, IA and Lisbon, IA at 1020 pm CDT July 22.

Thunderstorm Wind in JONES, IOWA
From 22-JUL-11 20:50:00 to 22-JUL-11 20:50:00 (CST-6)
Location: MONTICELLO
Magnitude: 56.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind gusts estimated to be 65 mph blew down a tree onto a house in Monticello, IA at 950 pm CDT July 22.  Power lines and branches were also blown down across much of the town.

Thunderstorm Wind in JONES, IOWA
From 22-JUL-11 21:00:00 to 22-JUL-11 21:00:00 (CST-6)
Location: MONTICELLO
Magnitude: 52.00 EG
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Wind gusts estimated to be 60 mph destroyed the JumboTron and sound system at the Jones County Fair in Monticello, IA at 1000 pm CDT July 22.  In addition, some vendor tents were blown down and an awning on the Jones County Mobile EM Unit was destroyed.

Thunderstorm Wind in BUCHANAN, IOWA
From 22-JUL-11 19:00:00 to 22-JUL-11 19:00:00 (CST-6)
Location: INDEPENDENCE ARPT
Magnitude: 61.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts estimated to be 70 mph snapped a power pole at the intersection of V71 and D22 about 3 miles east of Jesup, IA around 800 pm CDT July 22.

Thunderstorm Wind in LINN, IOWA
From 22-JUL-11 20:40:00 to 22-JUL-11 20:40:00 (CST-6)
Location: MARION ARPT
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 50 to 70 mph were observed 2 miles east northeast of Marion, IA at 940 pm CDT July 22.