On the afternoon of the 24th, a stalled frontal boundary extended across northwestern Arkansas and far southeastern Oklahoma. This boundary began to lift to the north with widespread showers and thunderstorms initiating north of the boundary and affecting much of eastern Oklahoma. Recent heavy rains had saturated the ground and the additional heavy rainfall with this activity resulted in widespread flash flooding. Large hail was also observed with the stronger storms as well as two brief tornadoes. The activity continued into the early morning hours of the 25th.

Hail in TULSA, OKLAHOMA
From 24-APR-11 18:23:00 to 24-APR-11 18:23:00 (CST-6)
Location: SKIATOOK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in SEQUOYAH, OKLAHOMA
From 24-APR-11 18:32:00 to 25-APR-11 00:00:00 (CST-6)
Location: SALLISAW
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous county roads were closed due to high water and portions of I-40 were flooded. Several cars were stranded in the flood water.

Hail in WASHINGTON, OKLAHOMA
From 24-APR-11 18:30:00 to 24-APR-11 18:30:00 (CST-6)
Location: RAMONA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in HASKELL, OKLAHOMA
From 24-APR-11 18:40:00 to 25-APR-11 00:00:00 (CST-6)
Location: WHITEFIELD
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Portions of Highways 82 and 31 were flooded, as were a number of county roads, resulting in closures. Numerous vehicles were stranded in the flood water.

Flash Flood in LE FLORE, OKLAHOMA
From 24-APR-11 18:43:00 to 25-APR-11 00:00:00 (CST-6)
Location: SMACKER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Many county roads were closed due to high water.

Flash Flood in LE FLORE, OKLAHOMA
From 24-APR-11 18:51:00 to 25-APR-11 00:00:00 (CST-6)
Location: POTEAU
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A swift water rescue was necessary due to flooding in town.

Flash Flood in MCINTOSH, OKLAHOMA
From 24-APR-11 18:50:00 to 25-APR-11 00:00:00 (CST-6)
Location: EUFAULA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roads near Paradise Point were flooded.

Hail in WASHINGTON, OKLAHOMA
From 24-APR-11 18:51:00 to 24-APR-11 18:51:00 (CST-6)
Location: BARTLESVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in NOWATA, OKLAHOMA
From 24-APR-11 18:57:00 to 24-APR-11 18:57:00 (CST-6)
Location: NOWATA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WASHINGTON, OKLAHOMA
From 24-APR-11 19:00:00 to 24-APR-11 19:00:00 (CST-6)
Location: DEWEY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WASHINGTON, OKLAHOMA
From 24-APR-11 19:00:00 to 24-APR-11 19:00:00 (CST-6)
Location: COPAN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROGERS, OKLAHOMA
From 24-APR-11 20:47:00 to 24-APR-11 20:47:00 (CST-6)
Location: CATOOSA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in TULSA, OKLAHOMA
From 24-APR-11 22:00:00 to 24-APR-11 22:00:00 (CST-6)
Location: SKIATOOK
Magnitude: 1.75 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in OSAGE, OKLAHOMA
From 24-APR-11 22:03:00 to 24-APR-11 22:03:00 (CST-6)
Location: SKIATOOK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in TULSA, OKLAHOMA
From 24-APR-11 22:09:00 to 24-APR-11 22:09:00 (CST-6)
Location: SPERRY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm Wind in DELAWARE, OKLAHOMA
From 25-APR-11 00:57:00 to 25-APR-11 00:57:00 (CST-6)
Location: WEST SILOAM SPGS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind blew down a tree.

Tornado in PITTSBURG, OKLAHOMA
From 24-APR-11 16:05:00 to 24-APR-11 16:06:00 (CST-6)
Location: SCIPIO
Tornado F-scale: EF0
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado blew down large tree limbs, damaged the roof of a permanent home, and blew the roof off of a barn. Maximum estimated wind in the tornado based on this damage was about 80 mph.

Tornado in LE FLORE, OKLAHOMA
From 24-APR-11 18:03:00 to 24-APR-11 18:03:00 (CST-6)
Location: MONROE
Tornado F-scale: EF0
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado damaged the roof of a permanent home and snapped large tree limbs. Maximum estimated wind in the tornado based on this damage was about 85 mph.

Flash Flood in ADAIR, OKLAHOMA
From 24-APR-11 15:00:00 to 25-APR-11 02:00:00 (CST-6)
Location: WATTS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several water rescues were necessary due to flooding near Watts and Westville.

Flash Flood in ADAIR, OKLAHOMA
From 24-APR-11 17:16:00 to 25-APR-11 02:00:00 (CST-6)
Location: PROCTOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Baron Fork Creek came out of its banks and flooded portions of Highway 62.

Hail in LATIMER, OKLAHOMA
From 24-APR-11 17:47:00 to 24-APR-11 17:47:00 (CST-6)
Location: WILBURTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in TULSA, OKLAHOMA
From 24-APR-11 17:52:00 to 24-APR-11 17:52:00 (CST-6)
Location: OWASSO
Magnitude: 1.50 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROGERS, OKLAHOMA
From 24-APR-11 17:53:00 to 24-APR-11 17:53:00 (CST-6)
Location: CATOOSA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in TULSA, OKLAHOMA
From 24-APR-11 17:56:00 to 24-APR-11 17:56:00 (CST-6)
Location: COLLINSVILLE
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in LE FLORE, OKLAHOMA
From 24-APR-11 17:58:00 to 24-APR-11 17:58:00 (CST-6)
Location: CAMERON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in LE FLORE, OKLAHOMA
From 24-APR-11 18:05:00 to 24-APR-11 18:05:00 (CST-6)
Location: POTEAU
Magnitude: 1.50 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in LE FLORE, OKLAHOMA
From 24-APR-11 18:09:00 to 24-APR-11 18:09:00 (CST-6)
Location: POTEAU
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm wind gusts of up to 60 mph were measured in town.

Flash Flood in SEQUOYAH, OKLAHOMA
From 24-APR-11 18:18:00 to 25-APR-11 00:00:00 (CST-6)
Location: ROLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Highway 64 in Roland was flooded and closed.

Flash Flood in CHEROKEE, OKLAHOMA
From 24-APR-11 18:19:00 to 25-APR-11 00:00:00 (CST-6)
Location: TAHLEQUAH
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Cars were stranded with several water rescues necessary as a result of flooding. Flood water was over Highway 82 near Moodys Corner.

Flash Flood in LE FLORE, OKLAHOMA
From 24-APR-11 18:22:00 to 25-APR-11 00:00:00 (CST-6)
Location: ARKOMA
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Homes and businesses were flooded.

Flash Flood in LE FLORE, OKLAHOMA
From 24-APR-11 18:23:00 to 25-APR-11 00:00:00 (CST-6)
Location: POTEAU
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Up to two feet of water covered several roads in and around town.

Flash Flood in OKMULGEE, OKLAHOMA
From 24-APR-11 15:00:00 to 25-APR-11 02:00:00 (CST-6)
Location: MORRIS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

An officer reported one to two feet of water over several roadways in and around Morris.

Hail in HASKELL, OKLAHOMA
From 24-APR-11 16:57:00 to 24-APR-11 16:57:00 (CST-6)
Location: STIGLER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in TULSA, OKLAHOMA
From 24-APR-11 15:00:00 to 24-APR-11 15:00:00 (CST-6)
Location: OWASSO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Flash Flood in OKMULGEE, OKLAHOMA
From 24-APR-11 15:00:00 to 25-APR-11 02:00:00 (CST-6)
Location: BEGGS
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several cars were stranded in flood water.

Flash Flood in MUSKOGEE, OKLAHOMA
From 24-APR-11 15:00:00 to 25-APR-11 02:00:00 (CST-6)
Location: HASKELL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous county roads were flooded and impassable in and around Haskell.

Flash Flood in MCINTOSH, OKLAHOMA
From 24-APR-11 17:16:00 to 25-APR-11 02:00:00 (CST-6)
Location: CHECOTAH
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Checotah Middle School buildings were flooded.