Thunderstorms developed along the dry line in western and central Oklahoma during the afternoon of May 11th. This activity moved eastward into eastern Oklahoma during the afternoon and evening. Widespread damaging winds and isolated tornadoes occurred with this activity.

Thunderstorm Wind in PUSHMATAHA, OKLAHOMA
From 11-MAY-11 15:31:00 to 11-MAY-11 15:31:00 (CST-6)
Location: MOYERS
Magnitude: 61.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind blew down several trees and blew the metal roof off of a shed in Moyers.

Thunderstorm Wind in PUSHMATAHA, OKLAHOMA
From 11-MAY-11 15:40:00 to 11-MAY-11 15:40:00 (CST-6)
Location: SNOW
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Strong thunderstorm wind blew down trees between Snow and Finley.

Thunderstorm Wind in PAWNEE, OKLAHOMA
From 11-MAY-11 15:43:00 to 11-MAY-11 15:43:00 (CST-6)
Location: PAWNEE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Strong thunderstorm wind resulted in considerable tree damage with many large limbs blown down south of Pawnee.

Thunderstorm Wind in OKMULGEE, OKLAHOMA
From 11-MAY-11 15:47:00 to 11-MAY-11 15:47:00 (CST-6)
Location: HENRYETTA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees were blown down by strong thunderstorm winds.

Thunderstorm Wind in CREEK, OKLAHOMA
From 11-MAY-11 16:00:00 to 11-MAY-11 16:00:00 (CST-6)
Location: NEW MANNFORD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management personnel reported large tree limbs blown down by strong thunderstorm winds.

Thunderstorm Wind in PUSHMATAHA, OKLAHOMA
From 11-MAY-11 16:03:00 to 11-MAY-11 16:03:00 (CST-6)
Location: CLAYTON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported three trees uprooted and many others damaged by strong thunderstorm winds.

Thunderstorm Wind in LATIMER, OKLAHOMA
From 11-MAY-11 16:14:00 to 11-MAY-11 16:14:00 (CST-6)
Location: YANUSH
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were blown down and a porch of a home in Yanush was damaged by strong thunderstorm wind.

Thunderstorm Wind in ROGERS, OKLAHOMA
From 11-MAY-11 16:52:00 to 11-MAY-11 16:52:00 (CST-6)
Location: INOLA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Strong thunderstorm wind blew down several trees and snapped large limbs.

Thunderstorm Wind in MAYES, OKLAHOMA
From 11-MAY-11 17:01:00 to 11-MAY-11 17:01:00 (CST-6)
Location: CHOUTEAU
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An amateur radio operator measured 60 mph thunderstorm wind gusts in Chouteau.

Thunderstorm Wind in PAWNEE, OKLAHOMA
From 11-MAY-11 16:00:00 to 11-MAY-11 16:00:00 (CST-6)
Location: CLEVELAND
Magnitude: 56.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported five trees blown down with many others damaged. A carport was picked up by strong winds and blown 50 yards. A mobile home had all its skirting damaged or removed.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 11-MAY-11 16:20:00 to 11-MAY-11 16:20:00 (CST-6)
Location: TULSA
Magnitude: 56.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Large trees were blown down onto a mobile home near the Osage Casino.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 11-MAY-11 16:27:00 to 11-MAY-11 16:27:00 (CST-6)
Location: SKIATOOK
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station northwest of Skiatook measured 76 mph thunderstorm wind gusts.

Thunderstorm Wind in TULSA, OKLAHOMA
From 11-MAY-11 16:30:00 to 11-MAY-11 16:30:00 (CST-6)
Location: SKIATOOK
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm winds caused damage to the roof of the cafeteria at an elementary school.

Thunderstorm Wind in TULSA, OKLAHOMA
From 11-MAY-11 16:40:00 to 11-MAY-11 16:40:00 (CST-6)
Location: ALSUMA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser estimated thunderstorm winds to gust to 65 mph near 61st Street South and Garnett Road.

Thunderstorm Wind in MAYES, OKLAHOMA
From 11-MAY-11 17:03:00 to 11-MAY-11 17:03:00 (CST-6)
Location: CHOUTEAU
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Strong thunderstorm wind blew down power lines on Redbud Road east of Chouteau.

Thunderstorm Wind in NOWATA, OKLAHOMA
From 11-MAY-11 17:05:00 to 11-MAY-11 17:05:00 (CST-6)
Location: LENAPAH
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Post Office

Strong thunderstorm wind blew the roof off a barn and blew down several trees.

Thunderstorm Wind in ROGERS, OKLAHOMA
From 11-MAY-11 17:07:00 to 11-MAY-11 17:07:00 (CST-6)
Location: CLAREMORE
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several trees were uprooted, large limbs were snapped, and the roofs of several homes were damaged.

Thunderstorm Wind in MAYES, OKLAHOMA
From 11-MAY-11 17:10:00 to 11-MAY-11 17:10:00 (CST-6)
Location: LOCUST GROVE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Several large tree limbs were blown down by strong thunderstorm winds along Highway 82 south of town.

Tornado in MAYES, OKLAHOMA
From 11-MAY-11 17:11:00 to 11-MAY-11 17:12:00 (CST-6)
Location: LOCUST GROVE
Tornado F-scale: EF0
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado damaged a barn, damaged a permanent home, and blew down poles and large tree limbs. Maximum estimated wind in the tornado based on this damage was about 80 mph.

Tornado in DELAWARE, OKLAHOMA
From 11-MAY-11 17:47:00 to 11-MAY-11 17:50:00 (CST-6)
Location: BERNICE
Tornado F-scale: EF1
Property damage: 250.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado severely damaged a marina, damaged a number of boats, damaged a metal building, rolled trailers, and uprooted a number of trees. Maximum estimated wind in the tornado based on this damage was about 100 mph.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 11-MAY-11 14:25:00 to 11-MAY-11 14:25:00 (CST-6)
Location: GRAINOLA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm wind gusts of 60 mph were estimated west of Grainola.

Thunderstorm Wind in CHOCTAW, OKLAHOMA
From 11-MAY-11 14:53:00 to 11-MAY-11 14:53:00 (CST-6)
Location: BOSWELL
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: County Official

An official with City Hall reported power poles blown down by strong thunderstorm winds on the west side of town.

Thunderstorm Wind in ROGERS, OKLAHOMA
From 11-MAY-11 17:10:00 to 11-MAY-11 17:10:00 (CST-6)
Location: CLAREMORE
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several barns were damaged by strong thunderstorm winds.

Thunderstorm Wind in SEQUOYAH, OKLAHOMA
From 11-MAY-11 17:14:00 to 11-MAY-11 17:14:00 (CST-6)
Location: SALLISAW
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm wind gusts of 60 mph were estimated by emergency management personnel.

Thunderstorm Wind in WASHINGTON, OKLAHOMA
From 11-MAY-11 15:30:00 to 11-MAY-11 15:30:00 (CST-6)
Location: OCHELATA
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency Management personnel reported trees and power lines blown down by strong thunderstorm winds.

Thunderstorm Wind in ROGERS, OKLAHOMA
From 11-MAY-11 17:15:00 to 11-MAY-11 17:15:00 (CST-6)
Location: CLAREMORE
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm wind gusts of 60 mph were measured by the AWOS unit at the Claremore Regional Airport.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 11-MAY-11 17:46:00 to 11-MAY-11 17:46:00 (CST-6)
Location: BARON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Strong thunderstorm wind estimated around 65 mph snapped large tree limbs.

Thunderstorm Wind in OTTAWA, OKLAHOMA
From 11-MAY-11 18:15:00 to 11-MAY-11 18:15:00 (CST-6)
Location: MIAMI
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several large trees were blown down by strong thunderstorm wind and some fell onto power lines resulting in power outages.

Thunderstorm Wind in OTTAWA, OKLAHOMA
From 11-MAY-11 18:30:00 to 11-MAY-11 18:30:00 (CST-6)
Location: WYANDOTTE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong thunderstorm wind blew down several trees onto Highway 60.

Thunderstorm Wind in WASHINGTON, OKLAHOMA
From 11-MAY-11 16:45:00 to 11-MAY-11 16:45:00 (CST-6)
Location: BARTLESVILLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong thunderstorm wind blew down trees and large limbs across the city.

Thunderstorm Wind in MAYES, OKLAHOMA
From 11-MAY-11 17:07:00 to 11-MAY-11 17:07:00 (CST-6)
Location: PRYOR
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several large tree limbs were snapped by strong thunderstorm wind.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 11-MAY-11 17:47:00 to 11-MAY-11 17:55:00 (CST-6)
Location: WESTVILLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Strong thunderstorm wind gusts estimated around 65 mph snapped large tree limbs.