A cold front moved southeast through Oklahoma during the day on the 21st as an upper level storm system moved east through the central plains. Thunderstorms developed first over parts of eastern Oklahoma, and built southwest along the front into the southeast half of Oklahoma. Many of the storms became severe with marginally severe hail and strong winds.  Some flooding was reported near Mill Creek, closing several county roads. Minor damage was reported with the high winds.

Hail in HUGHES, OKLAHOMA
From 21-SEP-09 15:20:00 to 21-SEP-09 15:20:00 (CST-6)
Location: HOLDENVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The hail was reported on Highway 48.

Hail in POTTAWATOMIE, OKLAHOMA
From 21-SEP-09 15:00:00 to 21-SEP-09 15:00:00 (CST-6)
Location: ASHER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Hail in MARSHALL, OKLAHOMA
From 21-SEP-09 18:30:00 to 21-SEP-09 18:30:00 (CST-6)
Location: OAKLAND
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The hail was reported on Highway 70, two miles east of McMillian Road.

Thunderstorm Wind in MARSHALL, OKLAHOMA
From 21-SEP-09 18:30:00 to 21-SEP-09 18:32:00 (CST-6)
Location: OAKLAND
Magnitude: 56.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Numerous tree limbs up to three inches in diameter were downed, and a couple of trees that were approximately eight to ten feet tall were uprooted. Golf ball-size hail was also reported at this location. Monetary damages were estimated.

Hail in MURRAY, OKLAHOMA
From 21-SEP-09 18:40:00 to 21-SEP-09 18:40:00 (CST-6)
Location: SULPHUR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash Flood in HUGHES, OKLAHOMA
From 21-SEP-09 19:00:00 to 21-SEP-09 21:00:00 (CST-6)
Location: WETUMKA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

County roads 1190 and 3730 were closed due to high water.

Hail in STEPHENS, OKLAHOMA
From 21-SEP-09 15:20:00 to 21-SEP-09 15:20:00 (CST-6)
Location: DUNCAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

The hail was reported on Highway 7, approximately seven miles east-southeast of Duncan, and one mile north.

Hail in CLEVELAND, OKLAHOMA
From 21-SEP-09 16:04:00 to 21-SEP-09 16:04:00 (CST-6)
Location: LEXINGTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SEMINOLE, OKLAHOMA
From 21-SEP-09 17:25:00 to 21-SEP-09 17:25:00 (CST-6)
Location: WEWOKA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in LOVE, OKLAHOMA
From 21-SEP-09 18:25:00 to 21-SEP-09 18:25:00 (CST-6)
Location: OVERBROOK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

No damage was reported with the wind gust.

Hail in JOHNSTON, OKLAHOMA
From 21-SEP-09 19:22:00 to 21-SEP-09 19:22:00 (CST-6)
Location: MILL CREEK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in BRYAN, OKLAHOMA
From 21-SEP-09 19:30:00 to 21-SEP-09 19:32:00 (CST-6)
Location: DURANT EAKER ARPT
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several power lines were downed by the severe winds. Monetary damages were estimated.