A large thunderstorm complex that developed over Nebraska and Iowa moved east southeast into Missouri and Illinois the evening of August 12th. It was diminishing as it approached the area, but still had enough power to cause wind damage into the early morning hours of August 13th.

Thunderstorm Wind in RALLS, MISSOURI
From 12-AUG-07 22:15:00 to 12-AUG-07 22:15:00 (CST-6)
Location: NEW LONDON
Magnitude: 52.00 EG
Reported by: Law Enforcement

Numerous trees were blown down in town.

Thunderstorm Wind in BOONE, MISSOURI
From 12-AUG-07 22:09:00 to 12-AUG-07 22:09:00 (CST-6)
Location: (COU)COLUMBIA RGNL A
Magnitude: 52.00 MG
Reported by: Official NWS Observations

Thunderstorm Wind in MONROE, MISSOURI
From 12-AUG-07 21:35:00 to 12-AUG-07 21:35:00 (CST-6)
Location: PARIS
Magnitude: 56.00 EG
Reported by: Law Enforcement

Numerous trees, tree limbs and power lines were blown down around town.

Thunderstorm Wind in MONROE, MISSOURI
From 12-AUG-07 21:40:00 to 12-AUG-07 21:40:00 (CST-6)
Location: MONROE CITY
Magnitude: 56.00 EG
Reported by: Law Enforcement

Numerous large trees and tree limbs were blown down around town.

Thunderstorm Wind in LEWIS, MISSOURI
From 12-AUG-07 21:40:00 to 12-AUG-07 21:40:00 (CST-6)
Location: CANTON
Magnitude: 52.00 EG
Reported by: Law Enforcement

Numerous large tree limbs were blown down.

Thunderstorm Wind in BOONE, MISSOURI
From 12-AUG-07 21:45:00 to 12-AUG-07 21:45:00 (CST-6)
Location: STURGEON
Magnitude: 52.00 EG
Reported by: Law Enforcement

A large tree was blown down in town.

Thunderstorm Wind in BOONE, MISSOURI
From 12-AUG-07 21:50:00 to 12-AUG-07 21:50:00 (CST-6)
Location: CENTRALIA
Magnitude: 52.00 EG
Reported by: Trained Spotter

Numerous large tree limbs were blown down.

Thunderstorm Wind in KNOX, MISSOURI
From 12-AUG-07 20:40:00 to 12-AUG-07 20:40:00 (CST-6)
Location: HURDLAND
Magnitude: 52.00 EG
Reported by: Law Enforcement

Numerous large tree limbs were blown down around town.

Thunderstorm Wind in KNOX, MISSOURI
From 12-AUG-07 21:00:00 to 12-AUG-07 21:00:00 (CST-6)
Location: EDINA
Magnitude: 52.00 EG
Reported by: Law Enforcement

Large tree limbs were blown down across Highway 15 between Edina and Novelty.

Thunderstorm Wind in SHELBY, MISSOURI
From 12-AUG-07 21:05:00 to 12-AUG-07 21:05:00 (CST-6)
Location: LEONARD
Magnitude: 52.00 EG
Reported by: Law Enforcement

A large tree was blown down across Highway H, just south of Leonard.

Thunderstorm Wind in LEWIS, MISSOURI
From 12-AUG-07 21:15:00 to 12-AUG-07 21:15:00 (CST-6)
Location: LA BELLE
Magnitude: 52.00 EG
Reported by: Law Enforcement

Numerous large tree limbs were blown down around town.

Thunderstorm Wind in SHELBY, MISSOURI
From 12-AUG-07 21:20:00 to 12-AUG-07 21:20:00 (CST-6)
Location: SHELBINA
Magnitude: 52.00 EG
Reported by: Trained Spotter

Numerous large tree limbs were blown down around town.

Thunderstorm Wind in MARION, MISSOURI
From 12-AUG-07 21:30:00 to 12-AUG-07 21:30:00 (CST-6)
Location: PHILADELPHIA
Magnitude: 56.00 EG
Reported by: Trained Spotter

A few 12 to 18 inch diameter trees were blown down in Philadelphia.

Thunderstorm Wind in ST. LOUIS (C), MISSOURI
From 13-AUG-07 00:00:00 to 13-AUG-07 00:00:00 (CST-6)
Location: ST LOUIS
Magnitude: 52.00 EG
Reported by: Law Enforcement

Several trees were blown down on the north end of the city.

Thunderstorm Wind in MARION, MISSOURI
From 12-AUG-07 21:55:00 to 12-AUG-07 21:55:00 (CST-6)
Location: PALMYRA
Magnitude: 52.00 EG
Reported by: Amateur Radio

A large tree was blown down across U.S. Highway 24 south of Palmyra.

Thunderstorm Wind in CALLAWAY, MISSOURI
From 12-AUG-07 22:20:00 to 12-AUG-07 22:20:00 (CST-6)
Location: FULTON
Magnitude: 52.00 EG
Reported by: Law Enforcement

Some trees were blown down and a few were blocking roads.

Thunderstorm Wind in MONTGOMERY, MISSOURI
From 12-AUG-07 22:35:00 to 12-AUG-07 22:35:00 (CST-6)
Location: MONTGOMERY CITY
Magnitude: 52.00 EG
Reported by: Law Enforcement

Cross guard arms at a railroad stop in town were blown away.

Thunderstorm Wind in CALLAWAY, MISSOURI
From 12-AUG-07 22:35:00 to 12-AUG-07 22:35:00 (CST-6)
Location: PORTLAND
Magnitude: 52.00 EG
Reported by: Law Enforcement

Several trees were blown down onto Route D between Portland and Readsville.

Thunderstorm Wind in COLE, MISSOURI
From 12-AUG-07 22:30:00 to 12-AUG-07 22:30:00 (CST-6)
Location: JEFFERSON CITY
Magnitude: 52.00 EG
Reported by: Law Enforcement

A few trees and large tree limbs were blown down in the city.

Thunderstorm Wind in OSAGE, MISSOURI
From 12-AUG-07 22:45:00 to 12-AUG-07 22:45:00 (CST-6)
Location: LINN
Magnitude: 52.00 EG
Reported by: Law Enforcement

A large tree was blown down across Highway 89 four and a half miles northeast of Linn.

Thunderstorm Wind in WARREN, MISSOURI
From 12-AUG-07 23:00:00 to 12-AUG-07 23:05:00 (CST-6)
Location: WARRENTON
Magnitude: 52.00 EG
Reported by: Trained Spotter

Numerous trees, tree limbs and power lines were blown down from Warrenton to east of Wright City.

Thunderstorm Wind in ST. CHARLES, MISSOURI
From 12-AUG-07 23:18:00 to 12-AUG-07 23:18:00 (CST-6)
Location: O FALLON
Magnitude: 52.00 EG
Reported by: Fire Department/Rescue

Several trees, tree limbs and power lines were blown down.

Thunderstorm Wind in ST. CHARLES, MISSOURI
From 12-AUG-07 23:25:00 to 12-AUG-07 23:25:00 (CST-6)
Location: ST PETERS
Magnitude: 52.00 EG
Reported by: Fire Department/Rescue

Numerous trees, tree limbs and power lines were blown down throughout St. Peters, Cottleville and Harvester.

Thunderstorm Wind in ST. CHARLES, MISSOURI
From 12-AUG-07 23:30:00 to 12-AUG-07 23:30:00 (CST-6)
Location: ST CHARLES
Magnitude: 56.00 EG
Reported by: Fire Department/Rescue

Numerous trees, tree limbs and power lines were blown down. Also, a car dealership building sustained minor roof damage.

Thunderstorm Wind in GASCONADE, MISSOURI
From 12-AUG-07 22:50:00 to 12-AUG-07 22:50:00 (CST-6)
Location: HERMANN
Magnitude: 52.00 EG
Reported by: Trained Spotter

Numerous tree limbs down throughout town and some power outages due to some limbs falling on power lines.

Thunderstorm Wind in LINCOLN, MISSOURI
From 12-AUG-07 23:05:00 to 12-AUG-07 23:15:00 (CST-6)
Location: TROY
Magnitude: 60.00 EG
Reported by: Trained Spotter

Numerous trees and power lines were blown down between Troy and Winfield along Highway 47.

Thunderstorm Wind in FRANKLIN, MISSOURI
From 12-AUG-07 23:10:00 to 12-AUG-07 23:10:00 (CST-6)
Location: LESLIE
Magnitude: 60.00 EG
Reported by: Law Enforcement

Several trees and power lines were blown down on Highway C north of Highway ZZ.

Thunderstorm Wind in ST. CHARLES, MISSOURI
From 12-AUG-07 23:38:00 to 12-AUG-07 23:38:00 (CST-6)
Location: ST CHARLES ARPT
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Thunderstorm Wind in ST. CHARLES, MISSOURI
From 12-AUG-07 23:46:00 to 12-AUG-07 23:46:00 (CST-6)
Location: ST CHARLES ARPT
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Thunderstorm Wind in ST. LOUIS, MISSOURI
From 12-AUG-07 23:55:00 to 12-AUG-07 23:55:00 (CST-6)
Location: ST JOHNS
Magnitude: 52.00 EG
Reported by: Emergency Manager

A 62 year old woman was critically injured when she went out in the middle of the storm to move her car.  A large tree branch fell on her.

Thunderstorm Wind in ST. LOUIS, MISSOURI
From 12-AUG-07 23:55:00 to 12-AUG-07 23:55:00 (CST-6)
Location: MAPLEWOOD
Magnitude: 52.00 EG
Reported by: Emergency Manager

Several large tree limbs were blown down on Flora Avenue.

Thunderstorm Wind in PIKE, MISSOURI
From 12-AUG-07 22:20:00 to 12-AUG-07 23:05:00 (CST-6)
Location: FRANKFORD
Magnitude: 52.00 EG
Reported by: Law Enforcement

Numerous large tree limbs were blown down throughout the county, some of which were blocking roads.

Thunderstorm Wind in AUDRAIN, MISSOURI
From 12-AUG-07 21:58:00 to 12-AUG-07 21:59:00 (CST-6)
Location: MEXICO
Magnitude: 52.00 EG
Reported by: Law Enforcement

Several trees, tree limbs and power lines were blown down.  Also, the thunderstorm's wind flattened a field of corn south of town.

Thunderstorm Wind in MARION, MISSOURI
From 12-AUG-07 22:10:00 to 12-AUG-07 22:10:00 (CST-6)
Location: HANNIBAL
Magnitude: 52.00 EG
Reported by: Amateur Radio

Numerous 6 to 8 inch diameter trees were blown down as well as power lines across the city.  One of the trees was blocking Route O.

Thunderstorm Wind in AUDRAIN, MISSOURI
From 12-AUG-07 22:20:00 to 12-AUG-07 22:25:00 (CST-6)
Location: FARBER
Magnitude: 52.00 EG
Reported by: Law Enforcement

Numerous tree limbs and power lines were blown down.

Thunderstorm Wind in FRANKLIN, MISSOURI
From 12-AUG-07 23:15:00 to 12-AUG-07 23:20:00 (CST-6)
Location: WASHINGTON
Magnitude: 60.00 EG
Reported by: Law Enforcement

Numerous tree limbs were blown down.  Also, several trees and power lines were blown down on Highway V near Highway 100.

Thunderstorm Wind in BOONE, MISSOURI
From 12-AUG-07 21:55:00 to 12-AUG-07 21:55:00 (CST-6)
Location: COLUMBIA
Magnitude: 53.00 MG
Reported by: Broadcast Media

Numerous tree limbs and power lines were blown down throughout town.  One car sustained major damage when the thunderstorm winds split a y-shaped tree and it fell onto a telephone line.  This pulled down the telephone pole and it landed on the vehicle.

Thunderstorm Wind in ST. CHARLES, MISSOURI
From 12-AUG-07 23:10:00 to 12-AUG-07 23:10:00 (CST-6)
Location: WENTZVILLE
Magnitude: 51.00 MG
Reported by: Broadcast Media

Several large trees, numerous tree limbs and power lines were blown down.

Thunderstorm Wind in ST. LOUIS, MISSOURI
From 12-AUG-07 23:45:00 to 12-AUG-07 23:50:00 (CST-6)
Location: FLORISSANT
Magnitude: 52.00 EG
Reported by: Law Enforcement

Numerous reports of trees, tree limbs and power lines blown down.

Thunderstorm Wind in CALLAWAY, MISSOURI
From 12-AUG-07 22:25:00 to 12-AUG-07 22:25:00 (CST-6)
Location: HOLTS SUMMIT
Magnitude: 52.00 EG
Reported by: Law Enforcement

Several trees and tree limbs were blown down.  A few of the trees were blocking roads. Also, one large tree limb crashed into a mobile home causing moderate damage.  No injuries were reported.