Very hot temperatures returned over Oklahoma after a brief hiatus ahead of a cold front that was moving through Kansas during the afternoon of the 12th. Ahead of the front, several outflow boundaries were located over southern Kansas and northern Oklahoma. Very hot temperatures contributed to a very unstable atmosphere over all of Oklahoma, with thunderstorms developing by mid afternoon. The thunderstorms first formed over parts of central and south-central Oklahoma, and drifted northeast. A severe gust estimated at 70 mph was reported near Lindsay. A larger complex of storms developed over southern Kansas and moved southeast into Oklahoma. More widespread severe weather occurred with this complex, as it organized over Oklahoma. Several locations reported wind gusts over 60 mph, some of which caused damage.

Thunderstorm Wind in WOODWARD, OKLAHOMA
From 12-AUG-11 17:27:00 to 12-AUG-11 17:27:00 (CST-6)
Location: WOODWARD
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in ELLIS, OKLAHOMA
From 12-AUG-11 17:35:00 to 12-AUG-11 17:35:00 (CST-6)
Location: FARGO
Magnitude: 61.00 EG
Reported by: Emergency Manager

Several trees and 10 electrical poles were blown down. The Ag building at the vocational school in town was totally destroyed, as were several smaller out buildings. Windows were broken out of several buildings and one roof was ripped off of a mobile home. Monetary damage estimates were not available.

Thunderstorm Wind in WOODWARD, OKLAHOMA
From 12-AUG-11 17:45:00 to 12-AUG-11 17:45:00 (CST-6)
Location: WOODWARD
Magnitude: 70.00 EG
Reported by: Emergency Manager

Part of the roof at an apartment complex was damaged. The complex was located on the west side of town. Monetary damage estimates were not available.

Thunderstorm Wind in GARFIELD, OKLAHOMA
From 12-AUG-11 19:25:00 to 12-AUG-11 19:25:00 (CST-6)
Location: HILLSDALE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

No damage was reported with the wind gust.

Thunderstorm Wind in MAJOR, OKLAHOMA
From 12-AUG-11 19:30:00 to 12-AUG-11 19:30:00 (CST-6)
Location: MENO
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The wind gust was measured at the Lahoma mesonet site.

Thunderstorm Wind in LOGAN, OKLAHOMA
From 12-AUG-11 20:15:00 to 12-AUG-11 20:15:00 (CST-6)
Location: MARSHALL
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in LOGAN, OKLAHOMA
From 12-AUG-11 20:20:00 to 12-AUG-11 20:20:00 (CST-6)
Location: MARSHALL
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in CUSTER, OKLAHOMA
From 12-AUG-11 20:30:00 to 12-AUG-11 20:30:00 (CST-6)
Location: BUTLER
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in ALFALFA, OKLAHOMA
From 12-AUG-11 18:10:00 to 12-AUG-11 18:10:00 (CST-6)
Location: BURLINGTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

No damage was reported with the wind gust.

Thunderstorm Wind in GRANT, OKLAHOMA
From 12-AUG-11 19:06:00 to 12-AUG-11 19:06:00 (CST-6)
Location: NASH
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

No damage was reported with the wind gust.

Thunderstorm Wind in GARFIELD, OKLAHOMA
From 12-AUG-11 19:40:00 to 12-AUG-11 19:40:00 (CST-6)
Location: ENID
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Power lines were downed at the intersection of Washington Street and Broadway Avenue. Monetary damages were estimated.

Thunderstorm Wind in GARFIELD, OKLAHOMA
From 12-AUG-11 19:43:00 to 12-AUG-11 19:43:00 (CST-6)
Location: ENID
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Power lines were downed at the intersection of 1th Street and Randolph Avenue. Monetary damages were estimated.

Thunderstorm Wind in GARVIN, OKLAHOMA
From 12-AUG-11 16:00:00 to 12-AUG-11 16:00:00 (CST-6)
Location: LINDSAY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

No damage was reported with the wind gust.

Thunderstorm Wind in ELLIS, OKLAHOMA
From 12-AUG-11 16:55:00 to 12-AUG-11 16:55:00 (CST-6)
Location: CATESBY
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An 80 X 120 foot pole barn was destroyed. Monetary damages were estimated.

Thunderstorm Wind in GARFIELD, OKLAHOMA
From 12-AUG-11 19:45:00 to 12-AUG-11 19:45:00 (CST-6)
Location: ENID
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in WOODWARD, OKLAHOMA
From 12-AUG-11 17:50:00 to 12-AUG-11 17:50:00 (CST-6)
Location: WOODWARD
Magnitude: 61.00 EG
Reported by: Emergency Manager

The Woodward Fire Department building sustained roof damage. Monetary damage estimates were not available.

Thunderstorm Wind in WASHITA, OKLAHOMA
From 12-AUG-11 21:00:00 to 12-AUG-11 21:00:00 (CST-6)
Location: BESSIE
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in CUSTER, OKLAHOMA
From 12-AUG-11 21:08:00 to 12-AUG-11 21:08:00 (CST-6)
Location: CLINTON
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in OKLAHOMA, OKLAHOMA
From 12-AUG-11 21:25:00 to 12-AUG-11 21:25:00 (CST-6)
Location: BETHANY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

The wind gust was estimated at the intersection of Hefner and County Line Roads.

Thunderstorm Wind in OKLAHOMA, OKLAHOMA
From 12-AUG-11 21:23:00 to 12-AUG-11 21:23:00 (CST-6)
Location: EDMOND
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

The wind gust was measured near the intersection Pennsylvania Avenue and Edmond Road.

Hail in POTTAWATOMIE, OKLAHOMA
From 12-AUG-11 17:00:00 to 12-AUG-11 17:00:00 (CST-6)
Location: PINK
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Hail in POTTAWATOMIE, OKLAHOMA
From 12-AUG-11 17:00:00 to 12-AUG-11 17:00:00 (CST-6)
Location: PINK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Hail in POTTAWATOMIE, OKLAHOMA
From 12-AUG-11 17:15:00 to 12-AUG-11 17:15:00 (CST-6)
Location: SHAWNEE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SHAVE Project