A large upper trough was ejecting out of the Rockies, with a dryline extending from western Nebraska through the Texas Panhandle. Strong wind shear and instability were in place over the southern Plains. Supercells developed along the dryline during the early to mid afternoon, then progressed eastward into western Oklahoma, producing hail, wind and isolated tornadoes. Additional severe thunderstorms developed farther east over western and central Oklahoma during the mid to late afternoon, with severe wind and hail reported.

Thunderstorm Wind in WOODWARD, OKLAHOMA
From 29-MAY-13 17:12:00 to 29-MAY-13 17:12:00 (CST-6)
Location: FORT SUPPLY
Magnitude: 61.00 EG
Reported by: Storm Chaser

A storm chaser estimated 70 mph winds in Ft. Supply.

Thunderstorm Wind in DEWEY, OKLAHOMA
From 29-MAY-13 17:20:00 to 29-MAY-13 17:20:00 (CST-6)
Location: PUTNAM
Magnitude: 50.00 MG
Reported by: Mesonet

Thunderstorm Wind in COMANCHE, OKLAHOMA
From 29-MAY-13 16:30:00 to 29-MAY-13 16:30:00 (CST-6)
Location: LAWTON
Magnitude: 61.00 EG
Property damage: 1.00K
Reported by: COOP Observer

Observer reported small limbs down, along with nickel size hail.

Thunderstorm Wind in OKLAHOMA, OKLAHOMA
From 29-MAY-13 17:37:00 to 29-MAY-13 17:37:00 (CST-6)
Location: MIDWEST CITY
Magnitude: 61.00 EG
Reported by: Public

Public estimated gusts to 70 mph.

Thunderstorm Wind in CADDO, OKLAHOMA
From 29-MAY-13 16:30:00 to 29-MAY-13 16:30:00 (CST-6)
Location: ANADARKO
Magnitude: 56.00 EG
Property damage: 15.00K
Reported by: NWS Employee

Power poles down on the east side of Anadarko.

Thunderstorm Wind in BECKHAM, OKLAHOMA
From 29-MAY-13 18:32:00 to 29-MAY-13 18:32:00 (CST-6)
Location: ERICK
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Trained Spotter

Numerous large tree limbs reported down.

Thunderstorm Wind in KINGFISHER, OKLAHOMA
From 29-MAY-13 16:19:00 to 29-MAY-13 16:19:00 (CST-6)
Location: OKARCHE
Magnitude: 50.00 MG
Reported by: Trained Spotter

Thunderstorm Wind in WOODWARD, OKLAHOMA
From 29-MAY-13 17:40:00 to 29-MAY-13 17:40:00 (CST-6)
Location: MOORELAND ARPT
Magnitude: 53.00 MG
Reported by: Mesonet

Thunderstorm Wind in KAY, OKLAHOMA
From 29-MAY-13 17:55:00 to 29-MAY-13 17:55:00 (CST-6)
Location: BLACKWELL
Magnitude: 50.00 MG
Reported by: Mesonet

Thunderstorm Wind in CUSTER, OKLAHOMA
From 29-MAY-13 17:55:00 to 29-MAY-13 17:55:00 (CST-6)
Location: FOSS RES DAM
Magnitude: 59.00 MG
Reported by: Mesonet

Thunderstorm Wind in PAYNE, OKLAHOMA
From 29-MAY-13 18:10:00 to 29-MAY-13 18:10:00 (CST-6)
Location: STILLWATER
Magnitude: 53.00 MG
Reported by: Mesonet

Mesonet site and KSWO both reported 61 mph gusts within two minutes of each other.

Thunderstorm Wind in JEFFERSON, OKLAHOMA
From 29-MAY-13 18:50:00 to 29-MAY-13 18:50:00 (CST-6)
Location: RINGLING
Magnitude: 52.00 MG
Reported by: Mesonet

Thunderstorm Wind in CUSTER, OKLAHOMA
From 29-MAY-13 19:25:00 to 29-MAY-13 19:25:00 (CST-6)
Location: FOSS RES DAM
Magnitude: 50.00 MG
Reported by: Mesonet

Thunderstorm Wind in CARTER, OKLAHOMA
From 29-MAY-13 21:35:00 to 29-MAY-13 21:35:00 (CST-6)
Location: ARDMORE
Magnitude: 57.00 MG
Reported by: ASOS

Hail in BRYAN, OKLAHOMA
From 30-MAY-13 06:55:00 to 30-MAY-13 06:55:00 (CST-6)
Location: SILO
Magnitude: 1.00 
Reported by: Public

Thunderstorm Wind in PONTOTOC, OKLAHOMA
From 29-MAY-13 23:30:00 to 29-MAY-13 23:30:00 (CST-6)
Location: FITTSTOWN
Magnitude: 52.00 MG
Reported by: Mesonet

Thunderstorm Wind in JACKSON, OKLAHOMA
From 29-MAY-13 14:40:00 to 29-MAY-13 14:40:00 (CST-6)
Location: ALTUS
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several power lines and power poles downed. Damage estimated.

Thunderstorm Wind in JACKSON, OKLAHOMA
From 29-MAY-13 14:36:00 to 29-MAY-13 14:36:00 (CST-6)
Location: ALTUS
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

No damage was reported.

Thunderstorm Wind in COTTON, OKLAHOMA
From 29-MAY-13 16:08:00 to 29-MAY-13 16:08:00 (CST-6)
Location: WALTERS
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A large barn was destroyed.

Thunderstorm Wind in PAYNE, OKLAHOMA
From 29-MAY-13 18:08:00 to 29-MAY-13 18:08:00 (CST-6)
Location: STILLWATER
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

No damage was reported.

Hail in BECKHAM, OKLAHOMA
From 29-MAY-13 17:45:00 to 29-MAY-13 17:45:00 (CST-6)
Location: ERICK
Magnitude: 1.75 
Reported by: Emergency Manager

Hail in BECKHAM, OKLAHOMA
From 29-MAY-13 17:54:00 to 29-MAY-13 17:54:00 (CST-6)
Location: ERICK
Magnitude: 2.90 
Reported by: Trained Spotter

Hail in BECKHAM, OKLAHOMA
From 29-MAY-13 18:05:00 to 29-MAY-13 18:05:00 (CST-6)
Location: ELK CITY
Magnitude: 1.00 
Reported by: Public

Hail in GREER, OKLAHOMA
From 29-MAY-13 18:15:00 to 29-MAY-13 18:15:00 (CST-6)
Location: REED
Magnitude: 2.00 
Reported by: Amateur Radio

Hail in HARMON, OKLAHOMA
From 29-MAY-13 18:12:00 to 29-MAY-13 18:12:00 (CST-6)
Location: MADGE
Magnitude: 2.75 
Reported by: Public

Hail in BECKHAM, OKLAHOMA
From 29-MAY-13 18:16:00 to 29-MAY-13 18:16:00 (CST-6)
Location: ERICK
Magnitude: 2.00 
Reported by: Trained Spotter

Hail in BECKHAM, OKLAHOMA
From 29-MAY-13 18:18:00 to 29-MAY-13 18:18:00 (CST-6)
Location: NEW LIBERTY
Magnitude: 1.00 
Reported by: Fire Department/Rescue

Hail in GREER, OKLAHOMA
From 29-MAY-13 18:20:00 to 29-MAY-13 18:20:00 (CST-6)
Location: REED
Magnitude: 2.50 
Reported by: Amateur Radio

Hail in CUSTER, OKLAHOMA
From 29-MAY-13 21:00:00 to 29-MAY-13 21:00:00 (CST-6)
Location: WEATHERFORD
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in CADDO, OKLAHOMA
From 29-MAY-13 16:25:00 to 29-MAY-13 16:25:00 (CST-6)
Location: STECKER
Magnitude: 50.00 MG
Reported by: Mesonet

Thunderstorm Wind in ROGER MILLS, OKLAHOMA
From 29-MAY-13 16:25:00 to 29-MAY-13 16:25:00 (CST-6)
Location: DEMPSEY
Magnitude: 50.00 MG
Reported by: Mesonet

Thunderstorm Wind in CANADIAN, OKLAHOMA
From 29-MAY-13 16:55:00 to 29-MAY-13 16:55:00 (CST-6)
Location: OKARCHE
Magnitude: 50.00 MG
Reported by: Trained Spotter

Thunderstorm Wind in LOGAN, OKLAHOMA
From 29-MAY-13 17:00:00 to 29-MAY-13 17:00:00 (CST-6)
Location: LOVELL
Magnitude: 57.00 MG
Reported by: Mesonet

Tornado in CANADIAN, OKLAHOMA
From 29-MAY-13 16:00:00 to 29-MAY-13 16:00:00 (CST-6)
Location: CALUMET
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

A tornado touched down briefly about 6 miles west of Calumet destroying a barn and damaging a house. Damage was estimated.

Hail in WASHITA, OKLAHOMA
From 29-MAY-13 21:00:00 to 29-MAY-13 21:00:00 (CST-6)
Location: CORN
Magnitude: 1.50 
Reported by: Public

Thunderstorm Wind in COTTON, OKLAHOMA
From 29-MAY-13 16:10:00 to 29-MAY-13 16:10:00 (CST-6)
Location: WALTERS ARPT
Magnitude: 69.00 MG
Property damage: 20.00K
Reported by: Mesonet

Mesonet site at Walters measured a gust to 79 mph. A 24x30 ft. barn was airborne near the same location.

Thunderstorm Wind in CADDO, OKLAHOMA
From 29-MAY-13 16:23:00 to 29-MAY-13 16:23:00 (CST-6)
Location: CYRIL
Magnitude: 56.00 MG
Reported by: Amateur Radio

Thunderstorm Wind in GRADY, OKLAHOMA
From 29-MAY-13 17:00:00 to 29-MAY-13 17:00:00 (CST-6)
Location: MINCO
Magnitude: 50.00 MG
Reported by: Mesonet

Thunderstorm Wind in WOODWARD, OKLAHOMA
From 29-MAY-13 17:10:00 to 29-MAY-13 17:10:00 (CST-6)
Location: WOODWARD
Magnitude: 53.00 MG
Reported by: Mesonet

Tornado in BECKHAM, OKLAHOMA
From 29-MAY-13 18:21:00 to 29-MAY-13 18:23:00 (CST-6)
Location: ERICK
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser observed a weak tornado in far southern Beckham County near the Harmon and Greer County intersection. A funnel was observed with a rotating column of dust observed. The tornado produced no known damage.

Tornado in CLEVELAND, OKLAHOMA
From 29-MAY-13 17:42:00 to 29-MAY-13 17:42:00 (CST-6)
Location: NORMAN
Tornado F-scale: EF1
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado touched down very briefly in the southwest portion of the city of Norman, damaging a home near Fairfield Drive and Belmont Drive. No other damage occurred. The damage amount was estimated.

Thunderstorm Wind in JACKSON, OKLAHOMA
From 29-MAY-13 14:30:00 to 29-MAY-13 14:30:00 (CST-6)
Location: (LTS)ALTUS AFB
Magnitude: 61.00 MG
Property damage: 10.00K
Reported by: Other Federal Agency

Gust to 70 mph measured at Altus AFB. A gust to 71 mph was also measured six minutes later by a trained spotter in Altus. Power lines were downed in the city.