A line of storms formed along a cold front on the evening of the 22nd, and swept southeastward. Storms were slow moving with heavy rainfall rates, producing several instances of flash flooding.

Thunderstorm Wind in WASHITA, OKLAHOMA
From 22-AUG-17 15:54:00 to 22-AUG-17 15:54:00 (CST-6)
Location: (CSM)CLINTON SHERMAN AIRPORT
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in POTTAWATOMIE, OKLAHOMA
From 22-AUG-17 17:33:00 to 22-AUG-17 17:33:00 (CST-6)
Location: SHAWNEE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

No damage reported.

Thunderstorm Wind in POTTAWATOMIE, OKLAHOMA
From 22-AUG-17 17:44:00 to 22-AUG-17 17:44:00 (CST-6)
Location: SHAWNEE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Delayed report. Tree limbs down of up to 5-6 inches in diameter were broken. Numerous small limbs down.

Thunderstorm Wind in POTTAWATOMIE, OKLAHOMA
From 22-AUG-17 17:50:00 to 22-AUG-17 17:50:00 (CST-6)
Location: SHAWNEE
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in OKLAHOMA, OKLAHOMA
From 22-AUG-17 17:55:00 to 22-AUG-17 17:55:00 (CST-6)
Location: OKLAHOMA CITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in OKLAHOMA, OKLAHOMA
From 22-AUG-17 18:06:00 to 22-AUG-17 18:06:00 (CST-6)
Location: EDMOND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

No damage reported.

Hail in SEMINOLE, OKLAHOMA
From 22-AUG-17 18:07:00 to 22-AUG-17 18:07:00 (CST-6)
Location: SEMINOLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in OKLAHOMA, OKLAHOMA
From 22-AUG-17 18:20:00 to 22-AUG-17 18:20:00 (CST-6)
Location: THE VILLAGE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

No damage reported.

Hail in OKLAHOMA, OKLAHOMA
From 22-AUG-17 18:26:00 to 22-AUG-17 18:26:00 (CST-6)
Location: THE VILLAGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

May Ave and Hefner Blvd.

Flash Flood in OKLAHOMA, OKLAHOMA
From 22-AUG-17 18:30:00 to 22-AUG-17 21:30:00 (CST-6)
Location: OKLAHOMA CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

One to two feet of water was over the roadway at 23rd and Broadway.

Flash Flood in OKLAHOMA, OKLAHOMA
From 22-AUG-17 19:28:00 to 22-AUG-17 22:28:00 (CST-6)
Location: OKLAHOMA CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Excessive rainfall caused flooding and a stalled vehicle  at 36th and Shartel.

Flash Flood in OKLAHOMA, OKLAHOMA
From 22-AUG-17 19:34:00 to 22-AUG-17 22:34:00 (CST-6)
Location: FOREST PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

At least a foot of water on roadway from excessive rainfall at northeast 50th street and I-35.

Flash Flood in CLEVELAND, OKLAHOMA
From 22-AUG-17 19:54:00 to 22-AUG-17 22:54:00 (CST-6)
Location: NORMAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Three feet of water was in front of the Mont restaurant at the intersection of Boyd street and Classen Blvd from excessive rainfall.

Flash Flood in CLEVELAND, OKLAHOMA
From 22-AUG-17 19:55:00 to 22-AUG-17 22:55:00 (CST-6)
Location: NORMAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Flooded roads stranded several vehicles at the corner of 12TH avenue northeast and east Robinson street.