Widespread strong to severe showers and thunderstorms moved over the eastern half of Oklahoma. A potent storm system moved southeast through the central Rockies, with warm, moist air moving north through Oklahoma. Thunderstorms first developed over north-central Oklahoma, but became more widespread further south as the evening progressed. Strong instability and wind shear allowed for the thunderstorms to become organized, with some supercell storms producing very large hail and damaging winds. One particular storm moved over the southwest side of Oklahoma City, with up to 4 inch diameter hail falling near Union City. Other storms produced hail up to baseball size. The storms continued to develop and move southeast, eventually moving into southeast Oklahoma.

Hail in GRADY, OKLAHOMA
From 22-OCT-11 18:50:00 to 22-OCT-11 18:50:00 (CST-6)
Location: POCASSET
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LINCOLN, OKLAHOMA
From 22-OCT-11 18:50:00 to 22-OCT-11 18:50:00 (CST-6)
Location: STROUD
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in CLEVELAND, OKLAHOMA
From 22-OCT-11 19:00:00 to 22-OCT-11 19:00:00 (CST-6)
Location: NORMAN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MCCLAIN, OKLAHOMA
From 22-OCT-11 19:05:00 to 22-OCT-11 19:05:00 (CST-6)
Location: BLANCHARD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in GRADY, OKLAHOMA
From 22-OCT-11 19:05:00 to 22-OCT-11 19:05:00 (CST-6)
Location: BRADLEY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in MCCLAIN, OKLAHOMA
From 22-OCT-11 19:15:00 to 22-OCT-11 19:15:00 (CST-6)
Location: BLANCHARD
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PONTOTOC, OKLAHOMA
From 22-OCT-11 19:27:00 to 22-OCT-11 19:27:00 (CST-6)
Location: ALLEN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GRADY, OKLAHOMA
From 22-OCT-11 19:40:00 to 22-OCT-11 19:40:00 (CST-6)
Location: CHICKASHA ARPT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in GARVIN, OKLAHOMA
From 22-OCT-11 20:25:00 to 22-OCT-11 20:25:00 (CST-6)
Location: PAULS VALLEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

No damage was reported with the wind.

Hail in COAL, OKLAHOMA
From 22-OCT-11 20:45:00 to 22-OCT-11 20:45:00 (CST-6)
Location: COTTONWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in STEPHENS, OKLAHOMA
From 22-OCT-11 21:15:00 to 22-OCT-11 21:15:00 (CST-6)
Location: DUNCAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in STEPHENS, OKLAHOMA
From 22-OCT-11 21:20:00 to 22-OCT-11 21:20:00 (CST-6)
Location: COMANCHE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in CANADIAN, OKLAHOMA
From 22-OCT-11 17:58:00 to 22-OCT-11 17:58:00 (CST-6)
Location: YUKON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in CARTER, OKLAHOMA
From 22-OCT-11 21:20:00 to 22-OCT-11 21:20:00 (CST-6)
Location: HEALDTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in PONTOTOC, OKLAHOMA
From 22-OCT-11 18:05:00 to 22-OCT-11 18:05:00 (CST-6)
Location: ADA
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in CANADIAN, OKLAHOMA
From 22-OCT-11 18:00:00 to 22-OCT-11 18:00:00 (CST-6)
Location: MUSTANG
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The hail was reported near SW 36th Street and Banner Road. The report was relayed by KFOR-TV.

Hail in CANADIAN, OKLAHOMA
From 22-OCT-11 18:10:00 to 22-OCT-11 18:10:00 (CST-6)
Location: MUSTANG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JEFFERSON, OKLAHOMA
From 22-OCT-11 21:35:00 to 22-OCT-11 21:35:00 (CST-6)
Location: ADDINGTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in JEFFERSON, OKLAHOMA
From 22-OCT-11 21:35:00 to 22-OCT-11 21:35:00 (CST-6)
Location: ADDINGTON
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in CANADIAN, OKLAHOMA
From 22-OCT-11 18:08:00 to 22-OCT-11 18:08:00 (CST-6)
Location: UNION CITY
Magnitude: 4.00 
Reported by: Storm Chaser

Car windshields were shattered from the mail.

Hail in PONTOTOC, OKLAHOMA
From 22-OCT-11 18:15:00 to 22-OCT-11 18:15:00 (CST-6)
Location: ADA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CARTER, OKLAHOMA
From 22-OCT-11 22:10:00 to 22-OCT-11 22:10:00 (CST-6)
Location: ARDMORE
Magnitude: 52.00 EG
Property damage: 0.10K
Crop damage: 0.00K
Reported by: Trained Spotter

Two 8 to 10 inch diameter trees were blown down.

Hail in JEFFERSON, OKLAHOMA
From 22-OCT-11 22:25:00 to 22-OCT-11 22:25:00 (CST-6)
Location: TERRAL
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OKLAHOMA, OKLAHOMA
From 22-OCT-11 18:20:00 to 22-OCT-11 18:20:00 (CST-6)
Location: WARR ACRES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PONTOTOC, OKLAHOMA
From 22-OCT-11 18:20:00 to 22-OCT-11 18:20:00 (CST-6)
Location: ADA
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in STEPHENS, OKLAHOMA
From 22-OCT-11 21:17:00 to 22-OCT-11 21:17:00 (CST-6)
Location: LOCO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in COAL, OKLAHOMA
From 22-OCT-11 21:05:00 to 22-OCT-11 21:05:00 (CST-6)
Location: LEHIGH
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: COOP Observer

A 36-inch diameter tree was blown down. Several smaller trees/limbs were blown down as well. Monetary damages were estimated.

Hail in PONTOTOC, OKLAHOMA
From 22-OCT-11 18:20:00 to 22-OCT-11 18:20:00 (CST-6)
Location: BYNG
Magnitude: 2.75 
Reported by: Trained Spotter

The hail busted out several windshields and caused other automobile damage.

Hail in PONTOTOC, OKLAHOMA
From 22-OCT-11 18:20:00 to 22-OCT-11 18:20:00 (CST-6)
Location: ADA
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GRADY, OKLAHOMA
From 22-OCT-11 18:28:00 to 22-OCT-11 18:28:00 (CST-6)
Location: TUTTLE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in GRADY, OKLAHOMA
From 22-OCT-11 18:40:00 to 22-OCT-11 18:40:00 (CST-6)
Location: TUTTLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in KAY, OKLAHOMA
From 22-OCT-11 15:51:00 to 22-OCT-11 15:51:00 (CST-6)
Location: PONCA CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINCOLN, OKLAHOMA
From 22-OCT-11 16:50:00 to 22-OCT-11 16:50:00 (CST-6)
Location: STROUD
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The hail report was relayed by KOCO-TV.

Hail in POTTAWATOMIE, OKLAHOMA
From 22-OCT-11 17:19:00 to 22-OCT-11 17:19:00 (CST-6)
Location: WANETTE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in POTTAWATOMIE, OKLAHOMA
From 22-OCT-11 17:27:00 to 22-OCT-11 17:27:00 (CST-6)
Location: ASHER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in CANADIAN, OKLAHOMA
From 22-OCT-11 17:29:00 to 22-OCT-11 17:29:00 (CST-6)
Location: CONCHO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in NOBLE, OKLAHOMA
From 22-OCT-11 17:39:00 to 22-OCT-11 17:39:00 (CST-6)
Location: BILLINGS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in OKLAHOMA, OKLAHOMA
From 22-OCT-11 19:45:00 to 22-OCT-11 19:45:00 (CST-6)
Location: MIDWEST CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The hail was reported near SE 15th Street and Westminster Road.

Hail in HUGHES, OKLAHOMA
From 22-OCT-11 19:50:00 to 22-OCT-11 19:50:00 (CST-6)
Location: GERTY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in STEPHENS, OKLAHOMA
From 22-OCT-11 19:58:00 to 22-OCT-11 19:58:00 (CST-6)
Location: MARLOW
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in NOBLE, OKLAHOMA
From 22-OCT-11 17:39:00 to 22-OCT-11 17:39:00 (CST-6)
Location: BILLINGS
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SEMINOLE, OKLAHOMA
From 22-OCT-11 17:50:00 to 22-OCT-11 17:50:00 (CST-6)
Location: CROMWELL
Magnitude: 2.75 
Reported by: Law Enforcement

Several vehicles sustained windshield damage from the large hail.

Hail in KAY, OKLAHOMA
From 22-OCT-11 17:55:00 to 22-OCT-11 17:55:00 (CST-6)
Location: BLACKWELL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer