Severe thunderstorms developed along a dry line over central Oklahoma during the afternoon hours. Very unstable air and strong wind shear east of the dry line supported supercell thunderstorm structures, which persisted as the storms moved into eastern Oklahoma during the evening hours. These severe storms produced tornadoes, large hail to golfball size, and very strong damaging downburst wind across much of eastern Oklahoma.

Thunderstorm Wind in OKMULGEE, OKLAHOMA
From 24-MAY-11 19:15:00 to 24-MAY-11 19:15:00 (CST-6)
Location: BEGGS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind gusts blew down large trees.

Thunderstorm Wind in NOWATA, OKLAHOMA
From 24-MAY-11 19:20:00 to 24-MAY-11 19:20:00 (CST-6)
Location: DELAWARE
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station southeast of Delaware measured 60 mph thunderstorm wind gusts.

Thunderstorm Wind in CREEK, OKLAHOMA
From 24-MAY-11 19:20:00 to 24-MAY-11 19:20:00 (CST-6)
Location: MOUNDS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm wind gusts of 60 mph were estimated by amateur radio operators.

Thunderstorm Wind in CRAIG, OKLAHOMA
From 24-MAY-11 19:25:00 to 24-MAY-11 19:25:00 (CST-6)
Location: CENTRALIA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser estimated thunderstorm wind gusts in excess of 70 mph.

Hail in CHOCTAW, OKLAHOMA
From 24-MAY-11 20:58:00 to 24-MAY-11 20:58:00 (CST-6)
Location: HUGO
Magnitude: 1.50 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in OKMULGEE, OKLAHOMA
From 24-MAY-11 19:25:00 to 24-MAY-11 19:25:00 (CST-6)
Location: HECTOR
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station west of Hectorville measured 67 mph thunderstorm wind gusts.

Hail in CREEK, OKLAHOMA
From 24-MAY-11 18:16:00 to 24-MAY-11 18:16:00 (CST-6)
Location: DEPEW
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in PITTSBURG, OKLAHOMA
From 24-MAY-11 19:25:00 to 24-MAY-11 19:25:00 (CST-6)
Location: ASHLAND
Magnitude: 57.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Strong thunderstorm wind gusts blew down trees.

Tornado in LE FLORE, OKLAHOMA
From 24-MAY-11 21:44:00 to 24-MAY-11 22:02:00 (CST-6)
Location: REICHERT
Tornado F-scale: EF2
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado destroyed a mobile home, damaged several permanent homes, snapped dozens of power poles, and snapped or uprooted numerous large trees. Maximum estimated wind in the tornado based on this damage was about 115 mph.

Hail in CREEK, OKLAHOMA
From 24-MAY-11 19:00:00 to 24-MAY-11 19:00:00 (CST-6)
Location: SAPULPA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in TULSA, OKLAHOMA
From 24-MAY-11 19:10:00 to 24-MAY-11 19:10:00 (CST-6)
Location: JENKS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in OKMULGEE, OKLAHOMA
From 24-MAY-11 19:17:00 to 24-MAY-11 19:17:00 (CST-6)
Location: BEGGS
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Hail in TULSA, OKLAHOMA
From 24-MAY-11 19:22:00 to 24-MAY-11 19:22:00 (CST-6)
Location: (TUL)TULSA INTL ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Quarter size hail fell at Tulsa International Airport.

Hail in TULSA, OKLAHOMA
From 24-MAY-11 19:31:00 to 24-MAY-11 19:31:00 (CST-6)
Location: GLENPOOL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in PAWNEE, OKLAHOMA
From 24-MAY-11 17:36:00 to 24-MAY-11 17:36:00 (CST-6)
Location: PAWNEE
Magnitude: 57.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large tree was blown down by strong thunderstorm wind.

Tornado in WAGONER, OKLAHOMA
From 24-MAY-11 19:56:00 to 24-MAY-11 20:00:00 (CST-6)
Location: CHOSKA
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the second of two segments of this tornado. In Wagoner County, this tornado uprooted trees and snapped power poles. Maximum estimated wind in the tornado based on this damage was about 95 mph.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 24-MAY-11 17:57:00 to 24-MAY-11 17:57:00 (CST-6)
Location: HOMINY
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser measured 67 mph thunderstorm wind gusts.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 24-MAY-11 18:10:00 to 24-MAY-11 18:10:00 (CST-6)
Location: PAWHUSKA
Magnitude: 70.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Strong thunderstorm wind severely damaged a home and blew down large trees.

Thunderstorm Wind in OKMULGEE, OKLAHOMA
From 24-MAY-11 19:32:00 to 24-MAY-11 19:32:00 (CST-6)
Location: HECTOR
Magnitude: 57.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Strong thunderstorm wind blew down trees near the intersection of Bixby Road and Hectorville Road.

Thunderstorm Wind in NOWATA, OKLAHOMA
From 24-MAY-11 19:25:00 to 24-MAY-11 19:25:00 (CST-6)
Location: SOUTH COFFEEVILLE AR
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Strong thunderstorm wind blew down power lines in South Coffeyville.

Thunderstorm Wind in MUSKOGEE, OKLAHOMA
From 24-MAY-11 19:50:00 to 24-MAY-11 19:50:00 (CST-6)
Location: JAMESVILLE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser estimated 70 mph thunderstorm wind gusts, likely associated with the rear flank downdraft of the supercell that produced the tornado that went through portions of Haskell.

Thunderstorm Wind in ROGERS, OKLAHOMA
From 24-MAY-11 20:00:00 to 24-MAY-11 20:00:00 (CST-6)
Location: INOLA
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station southeast of Inola measured 69 mph thunderstorm wind gusts.

Thunderstorm Wind in PAWNEE, OKLAHOMA
From 24-MAY-11 18:15:00 to 24-MAY-11 18:15:00 (CST-6)
Location: CLEVELAND
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Strong thunderstorm wind blew down trees and power lines.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 24-MAY-11 18:16:00 to 24-MAY-11 18:16:00 (CST-6)
Location: PAWHUSKA
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Strong thunderstorm wind blew down trees.

Thunderstorm Wind in PAWNEE, OKLAHOMA
From 24-MAY-11 18:18:00 to 24-MAY-11 18:18:00 (CST-6)
Location: HALLETT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Wind gusts of 60 mph were estimated by amateur radio operators.

Thunderstorm Wind in OTTAWA, OKLAHOMA
From 24-MAY-11 20:45:00 to 24-MAY-11 20:45:00 (CST-6)
Location: QUAPAW
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Thunderstorm wind gusts of 60 mph were estimated by fire department personnel.

Hail in LE FLORE, OKLAHOMA
From 24-MAY-11 21:44:00 to 24-MAY-11 21:44:00 (CST-6)
Location: WISTER
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CREEK, OKLAHOMA
From 24-MAY-11 18:30:00 to 24-MAY-11 18:30:00 (CST-6)
Location: MANNFORD
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm wind gusts of 70 to 80 mph were estimated by media storm chasers.

Thunderstorm Wind in WASHINGTON, OKLAHOMA
From 24-MAY-11 18:35:00 to 24-MAY-11 18:35:00 (CST-6)
Location: BARTLESVILLE
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong thunderstorm wind gusts damaged a church near the intersection of SW Frank Phillips Boulevard and S Virginia Avenue as well as a hospital near the intersection of E Frank Phillips Boulevard and Highway 75.

Thunderstorm Wind in PUSHMATAHA, OKLAHOMA
From 24-MAY-11 20:47:00 to 24-MAY-11 20:47:00 (CST-6)
Location: CLAYTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind gusts blew down large tree limbs.

Thunderstorm Wind in DELAWARE, OKLAHOMA
From 24-MAY-11 21:15:00 to 24-MAY-11 21:15:00 (CST-6)
Location: MAYSVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind gusts blew down large tree limbs.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 24-MAY-11 21:54:00 to 24-MAY-11 21:54:00 (CST-6)
Location: ADDIELEE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Strong thunderstorm wind gusts blew down several large trees.

Thunderstorm Wind in LE FLORE, OKLAHOMA
From 24-MAY-11 21:55:00 to 24-MAY-11 21:55:00 (CST-6)
Location: HEAVENER
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong thunderstorm wind gusts blew down trees and damaged homes. Several people were trapped in their home.

Thunderstorm Wind in ADAIR, OKLAHOMA
From 24-MAY-11 22:00:00 to 24-MAY-11 22:00:00 (CST-6)
Location: WESTVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Strong thunderstorm wind gusts blew down large tree limbs.

Thunderstorm Wind in LE FLORE, OKLAHOMA
From 24-MAY-11 22:08:00 to 24-MAY-11 22:08:00 (CST-6)
Location: MONROE
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong thunderstorm wind blew down large tree limbs and power lines.

Hail in CHOCTAW, OKLAHOMA
From 24-MAY-11 21:02:00 to 24-MAY-11 21:02:00 (CST-6)
Location: HUGO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in LE FLORE, OKLAHOMA
From 24-MAY-11 21:08:00 to 24-MAY-11 21:08:00 (CST-6)
Location: TALIHINA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in LE FLORE, OKLAHOMA
From 24-MAY-11 21:04:00 to 24-MAY-11 21:04:00 (CST-6)
Location: TALIHINA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in DELAWARE, OKLAHOMA
From 24-MAY-11 23:45:00 to 24-MAY-11 23:45:00 (CST-6)
Location: WEST SILOAM SPGS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tornado in OSAGE, OKLAHOMA
From 24-MAY-11 17:49:00 to 24-MAY-11 18:14:00 (CST-6)
Location: GRAY HORSE
Tornado F-scale: EF2
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado snapped or uprooted a number of large trees and snapped power poles. Maximum estimated wind in the tornado based on this damage was about 115 mph.

Thunderstorm Wind in TULSA, OKLAHOMA
From 24-MAY-11 18:45:00 to 24-MAY-11 18:45:00 (CST-6)
Location: SAND SPGS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm wind gusts of 60 mph were estimated by amateur radio operators.

Thunderstorm Wind in TULSA, OKLAHOMA
From 24-MAY-11 18:53:00 to 24-MAY-11 18:53:00 (CST-6)
Location: TULSA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm wind gusts of 70 mph were estimated by the media in downtown Tulsa.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 24-MAY-11 19:00:00 to 24-MAY-11 19:00:00 (CST-6)
Location: SKIATOOK
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station northwest of Skiatook measured 66 mph thunderstorm wind gusts.

Thunderstorm Wind in NOWATA, OKLAHOMA
From 24-MAY-11 19:10:00 to 24-MAY-11 19:10:00 (CST-6)
Location: NOWATA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorm wind gusts blew down large trees.

Tornado in DELAWARE, OKLAHOMA
From 24-MAY-11 20:48:00 to 24-MAY-11 20:59:00 (CST-6)
Location: LEACH
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado uprooted trees and snapped large limbs. Maximum estimated wind in the tornado based on this damage was about 95 mph. At least one storm chaser witnessed this tornado.

Tornado in LATIMER, OKLAHOMA
From 24-MAY-11 20:50:00 to 24-MAY-11 20:55:00 (CST-6)
Location: PANOLA
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tornado snapped or uprooted a number of large trees in the San Bois Mountains. This area was not reachable by road and thus was surveyed by a citizen on an ATV who found hundreds of trees downed in multiple directions. The exact beginning point and end point could not be accessed but this tornado was on the ground for at least 2.5 miles.

Tornado in LE FLORE, OKLAHOMA
From 24-MAY-11 21:14:00 to 24-MAY-11 21:16:00 (CST-6)
Location: TALIHINA
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser observed a tornado over open country. No known damage resulted from this tornado.

Thunderstorm Wind in LE FLORE, OKLAHOMA
From 24-MAY-11 22:14:00 to 24-MAY-11 22:14:00 (CST-6)
Location: SPIRO
Magnitude: 65.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong thunderstorm wind gusts blew down many trees and power lines. One tree fell on a vehicle, injuring its occupant. Several homes were also damaged by the wind.

Tornado in MUSKOGEE, OKLAHOMA
From 24-MAY-11 19:42:00 to 24-MAY-11 19:56:00 (CST-6)
Location: JAMESVILLE
Tornado F-scale: EF2
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the first of two segments of this tornado. In Muskogee County, the tornado destroyed a mobile home and a barn, damaged several other permanent homes, and snapped power poles and large trees. Maximum estimated wind in the tornado based on this damage was about 125 mph. The tornado continued into Wagoner County, Oklahoma. Several storm chasers, storm spotters, and citizens witnessed this tornado.

Tornado in WAGONER, OKLAHOMA
From 24-MAY-11 20:13:00 to 24-MAY-11 20:20:00 (CST-6)
Location: LA BARGE
Tornado F-scale: EF2
Property damage: 400.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado developed and moved across the southeastern portion of the City of Wagoner where it damaged the roofs of about a dozen homes, destroyed a carport, and snapped trees. The tornado moved across portions of Fort Gibson WMA and then across Long Bay of Fort Gibson Lake before impacting the Taylor Ferry and Long Bay Recreational Areas. In those areas, numerous campers and trailers were severely damaged or destroyed, several mobile homes were destroyed, several permanent homes were damaged, and numerous large trees were snapped or uprooted. Maximum estimated wind in the tornado based on this damage was about 115 mph. Several storm chasers, storm spotters, and citizens witnessed this tornado.

Tornado in SEQUOYAH, OKLAHOMA
From 24-MAY-11 22:37:00 to 24-MAY-11 22:40:00 (CST-6)
Location: GREENWOOD JCT
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the first of two segments of this tornado. In Sequoyah County, this tornado snapped or uprooted a number of large trees. Maximum estimated wind in the tornado based on this damage was about 105 mph. The tornado continued into Crawford County, Arkansas.

Tornado in OSAGE, OKLAHOMA
From 24-MAY-11 17:44:00 to 24-MAY-11 17:47:00 (CST-6)
Location: HOMINY
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado uprooted several trees and snapped large tree limbs. Maximum estimated wind in the tornado based on this damage was about 95 mph.

Thunderstorm Wind in LE FLORE, OKLAHOMA
From 24-MAY-11 22:07:00 to 24-MAY-11 22:07:00 (CST-6)
Location: BOKOSHE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm wind gusts of 70 mph were estimated by emergency management personnel. Trees were blown down by the wind.

Thunderstorm Wind in TULSA, OKLAHOMA
From 24-MAY-11 18:50:00 to 24-MAY-11 18:50:00 (CST-6)
Location: COLLINSVILLE
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind gusts blew shingles off a roof and damaged a garage door.

Thunderstorm Wind in WAGONER, OKLAHOMA
From 24-MAY-11 20:00:00 to 24-MAY-11 20:00:00 (CST-6)
Location: COWETA
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorm wind blew down a large sign.

Thunderstorm Wind in WAGONER, OKLAHOMA
From 24-MAY-11 20:15:00 to 24-MAY-11 20:15:00 (CST-6)
Location: WAGONER
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: County Official

Strong thunderstorm wind blew down several trees and damaged a metal storage building.

Thunderstorm Wind in PUSHMATAHA, OKLAHOMA
From 24-MAY-11 20:26:00 to 24-MAY-11 20:26:00 (CST-6)
Location: SARDIS
Magnitude: 65.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Strong thunderstorm wind blew down trees and power lines, trapping a family in their home.

Thunderstorm Wind in TULSA, OKLAHOMA
From 24-MAY-11 19:22:00 to 24-MAY-11 19:22:00 (CST-6)
Location: (TUL)TULSA INTL ARPT
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at the Tulsa International Airport measured 65 mph thunderstorm wind gusts.

Hail in PITTSBURG, OKLAHOMA
From 24-MAY-11 21:00:00 to 24-MAY-11 21:00:00 (CST-6)
Location: SCIPIO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Thunderstorm Wind in LATIMER, OKLAHOMA
From 24-MAY-11 20:27:00 to 24-MAY-11 20:27:00 (CST-6)
Location: GOWEN
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Strong thunderstorm wind snapped the trunks of several pine trees.

Tornado in DELAWARE, OKLAHOMA
From 24-MAY-11 21:06:00 to 24-MAY-11 21:16:00 (CST-6)
Location: ROW
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tornado uprooted trees and snapped large tree limbs. Maximum estimated wind in the tornado based on this damage was about 95 mph.