Significant flooding occurred over parts of central Oklahoma. Numerous homes and cars were flooded. One person died, and at least 136 people were injured. Damage was estimated at $5.5 million in Oklahoma county alone.
The event began late on June 13th, as thunderstorms developed over northwest Oklahoma. The thunderstorms developed ahead of a slow moving cold front that was located over southwest Kansas into the northern Texas panhandle. A large outflow boundary also extended eastward. The thunderstorms became more numerous as they moved along the outflow boundary.  Strengthened by the new rainfall, the outflow boundary dropped toward central Oklahoma, and a very moist low-level jet resulted in new thunderstorm development near the boundary.
The first round of significant rain impacted central Oklahoma around 3 am. This round moved east before another, longer lived, thunderstorm complex developed over the Oklahoma City metro area. The outflow boundary was located south of Interstate 40, and the low-level jet transported warm and unseasonably humid air north of the boundary, creating very heavy rain. Thunderstorms continued to develop over the southwest metro area, and slowly moved northeast. Rainfall rates averaged one to two inches per hour, with some thunderstorm bands producing rates near three inches per hour.
The heavy rain accumulated quickly immediately before and during the busy morning drive time. Numerous cars became stranded in the rapidly rising water. Roadways were covered by rapidly flowing water, and ponds, creeks, and rivers easily spilled over their banks. Navigating in and around the metro area became almost impossible, and many motorists had to be rescued by boat. After several hours, the persistent heavy rainfall tapered off around noon.
The larger area of heavy rainfall moved south as the outflow boundary moved into southern Oklahoma. Significant rain developed over southwest Oklahoma by early afternoon, and flash flooding once again became a problem. Lawton was hard hit, receiving between four and five inches of rain, resulting in several roadways becoming flooded. Numerous motorists had to be rescued from the high water. One motorist, unfortunately, lost his life when his vehicle stalled in flood waters.
Thunderstorms developed again over central Oklahoma late in the afternoon and evening, but luckily the duration of the thunderstorms was relatively short. By the time it was all said and done, widespread totals of five to nine inches were reported over much of Oklahoma City. Will Rogers World Airport reported its largest daily precipitation since records began in 1891, with 7.62 inches. Even higher totals were reported over the north-central portion of Oklahoma City, where nine to twelve inches was measured.
Strong winds caused some power outages during the event. At the peak of the event, over 6700 people were without power. Isolated pockets of wind damage did occur, with a power pole/power lines downed south of Drummond in Garfield county.

Flash Flood in COMANCHE, OKLAHOMA
From 14-JUN-10 21:15:00 to 14-JUN-10 23:30:00 (CST-6)
Location: LAWTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were closed due to high water. Several motorists had to be rescued after their automobiles stalled in the high water. One person drowned while trying to push his car out of the high water near NW Farris and 13th Street. No other serious injuries were reported.

Flash Flood in OKLAHOMA, OKLAHOMA
From 14-JUN-10 06:00:00 to 14-JUN-10 10:00:00 (CST-6)
Location: THE VILLAGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Three to four inches of rainfall during the early morning caused several roads to be closed due to water flowing over top of them.

Thunderstorm Wind in GARFIELD, OKLAHOMA
From 14-JUN-10 18:40:00 to 14-JUN-10 18:41:00 (CST-6)
Location: DRUMMOND
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A power pole, with associated power lines were downed just south of Drummond. Monetary damages were estimated.

Flash Flood in OKLAHOMA, OKLAHOMA
From 14-JUN-10 07:15:00 to 14-JUN-10 11:00:00 (CST-6)
Location: BETHANY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A second round of heavy rainfall overspread much of Oklahoma county during the morning rush hour, with several locations receiving 5 to 9 inch rainfall totals in just a few hours. Numerous roadways across the metro were impassable due to several feet of water flowing over top of them. At least 60 swift water rescues occurred as a result of cars driving into flood waters and rapidly rising water into homes. A portion of Britton Road between Sooner Road and Air Depot Boulevard was washed out. Part of the dock along the Oklahoma River was washed away. All of the buildings at the Capital Complex reported water damage to some degree. Numerous other buildings, and dozens of residences were flooded. The worst residential damage occurred over the northern portion of Oklahoma City near the Logan county line, where several homes were flooded with over three feet of water, and most did not have flood insurance. Monetary damages were estimated at $5.5 million for Oklahoma county during the day (entered on the last Oklahoma county flash flooding entry).

Flash Flood in CANADIAN, OKLAHOMA
From 14-JUN-10 07:30:00 to 14-JUN-10 10:30:00 (CST-6)
Location: MUSTANG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Training thunderstorms flooded several roadways in town. Several roads had to be barricaded as high water made them impassable.

Flash Flood in LINCOLN, OKLAHOMA
From 14-JUN-10 08:30:00 to 14-JUN-10 10:30:00 (CST-6)
Location: CHANDLER
Flood cause: Heavy Rain
Property damage: 600.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several inches of rain accumulated over just a few hours. At least 15 bridges were impacted by the flood waters, and some of them collapsed or were washed out. Numerous roadways had to be closed due to high water flowing over top of them. Monetary damages were estimated.

Flash Flood in POTTAWATOMIE, OKLAHOMA
From 14-JUN-10 15:30:00 to 14-JUN-10 17:30:00 (CST-6)
Location: SHAWNEE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Very heavy rain caused widespread flash flooding, especially near the Shawnee and Tecumseh areas. Several locations along Highway 177 and 18 were impassable, with vehicles becoming stranded in the rapidly rising water. A few swift water rescues occurred north of Tecumseh as two cars were swept off the roadway. Several homes also sustained damage. One residence had to be evacuated along Squirrel Creak as water rose out of its banks. Monetary damages for this portion of the event were not readily available.

Flash Flood in POTTAWATOMIE, OKLAHOMA
From 14-JUN-10 22:00:00 to 15-JUN-10 00:00:00 (CST-6)
Location: DALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several roadways between Bethel Acres and Shawnee had to be closed again when another round of heavy rain led to more flooding. Water reached 2 to 3 feet in some spots. One car became stranded in the rapidly rising water. No injuries were reported.

Flash Flood in OKLAHOMA, OKLAHOMA
From 14-JUN-10 21:15:00 to 14-JUN-10 23:30:00 (CST-6)
Location: OKLAHOMA CITY
Flood cause: Heavy Rain
Property damage: 5.50M
Crop damage: 0.00K
Reported by: Emergency Manager

Another round of heavy rain occurred over parts of the Oklahoma City metro area. The heavy rain falling on already saturated ground quickly led to flash flooding. Several roadways had to be re-barricaded due to very high water. The water that had receded around some residences began to rise again. After the rain ended, some areas had received over a foot of rainfall for the day. Much of it fell in only a few hours. Total damages for the day were over $5 million. One hundred twenty-two homes were affected, 52 of those home receiving minor damage, 11 receiving major damage, and one home was completely destroyed.

Flash Flood in PONTOTOC, OKLAHOMA
From 14-JUN-10 22:45:00 to 15-JUN-10 01:00:00 (CST-6)
Location: VANOSS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several roadways, including portions of Highway 19 west of Ada, had to be closed due to intense rainfall that occurred during the late evening hours.