A weak cold front and an outflow boundary provided the focus for slow moving and training thunderstorms which produced an average of 2 to 5 inches of rain across parts of northern Tulsa, Rogers, Mayes, Delaware, northern Cherokee and northern Adair Counties during the morning of the 1st.  Widespread flash flooding occurred across this part of northeast Oklahoma into the afternoon hours.  Although not as dramatic, some severe weather including hail and wind occurred during this time frame.

Flash Flood in CRAIG, OKLAHOMA
From 01-MAY-09 05:30:00 to 01-MAY-09 16:35:00 (CST-6)
Location: WELCH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Heavy rain caused numerous streets to be flooded in and around Welch.

Hail in OSAGE, OKLAHOMA
From 01-MAY-09 10:07:00 to 01-MAY-09 10:07:00 (CST-6)
Location: BURBANK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Hail in DELAWARE, OKLAHOMA
From 01-MAY-09 14:38:00 to 01-MAY-09 14:38:00 (CST-6)
Location: COLCORD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in WASHINGTON, OKLAHOMA
From 01-MAY-09 15:00:00 to 01-MAY-09 17:00:00 (CST-6)
Location: COPAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Heavy rain caused roads and bridges to be impassable in the Copan vicinity.

Hail in OTTAWA, OKLAHOMA
From 01-MAY-09 16:00:00 to 01-MAY-09 16:00:00 (CST-6)
Location: WYANDOTTE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flood in MAYES, OKLAHOMA
From 01-MAY-09 15:30:00 to 02-MAY-09 23:30:00 (CST-6)
Location: PRYOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A low water crossing on County Road 432 remained flooded due to earlier excessive rainfall that occurred in the area. The road was barricaded and remained badly flooded. A motorist drove around the barricade and attempted to drive through the flood waters at around 750 pm CDT 5/2 but was swept off the road and drowned.

Flash Flood in ROGERS, OKLAHOMA
From 01-MAY-09 04:30:00 to 01-MAY-09 11:30:00 (CST-6)
Location: FOYIL
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain caused flash flooding across the northeast part of Rogers County during the morning hours of the 1st.  Highway 28 on the southeast side of Chelsea had to be closed and numerous county roads had to be closed.  Water also entered some businesses in the city of Chelsea.

Flash Flood in DELAWARE, OKLAHOMA
From 01-MAY-09 07:00:00 to 01-MAY-09 15:30:00 (CST-6)
Location: COLCORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain caused numerous roads to be under water over mainly the western part of Delaware County.  Some of the roads had to be closed.

Flash Flood in CHEROKEE, OKLAHOMA
From 01-MAY-09 07:26:00 to 01-MAY-09 15:30:00 (CST-6)
Location: PEGGS
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain caused numerous roads and some homes to be flooded across the northern part of Cherokee County.  Some water rescues had to be performed.

Flash Flood in ADAIR, OKLAHOMA
From 01-MAY-09 09:04:00 to 01-MAY-09 12:00:00 (CST-6)
Location: WATTS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Heavy rain caused water to flow over roads in the northern part of Adair County.

Flash Flood in NOWATA, OKLAHOMA
From 01-MAY-09 15:00:00 to 01-MAY-09 17:00:00 (CST-6)
Location: WANN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Heavy rains caused roads and bridges to be impassable in the Wann vicinity.

Hail in OTTAWA, OKLAHOMA
From 01-MAY-09 15:07:00 to 01-MAY-09 15:07:00 (CST-6)
Location: MIAMI
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in OTTAWA, OKLAHOMA
From 01-MAY-09 15:26:00 to 01-MAY-09 15:26:00 (CST-6)
Location: MIAMI
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in MAYES, OKLAHOMA
From 01-MAY-09 06:45:00 to 01-MAY-09 15:30:00 (CST-6)
Location: ADAIR
Flood cause: Heavy Rain
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Newspaper

An average of 2 to 5 inches of rain fell across Mayes County during the morning of the 1st with a maximum of 7 inches at Pryor.  Widespread flash flooding occurred throughout the county. At one time as many as 75 percent of the roads in the county had to be closed including Highways 69, 69A, 20 and 28.  The sheriff's office reported that they had to perform 41 water rescues.  In addition, 15 homes had to be evacuated.   11 homes in Chouteau received water damage. Homes and businesses in Pryor were affected as well.  Downtown Pryor had to be closed for a time.  Damage also occurred to the water treatment plants at Locust Grove and Salina.

Flash Flood in ROGERS, OKLAHOMA
From 01-MAY-09 09:39:00 to 01-MAY-09 15:30:00 (CST-6)
Location: OOLOGAH
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Newspaper

Heavy rain caused widespread flash flooding across Rogers County. As many as 40 county roads were closed due to flooding.  Highway 88 near Inola was flooded as well. City streets in Claremore were flooded and the flood waters approached homes and businesses. Homes in Verdigris were also flooded.

Hail in CRAIG, OKLAHOMA
From 01-MAY-09 01:15:00 to 01-MAY-09 01:15:00 (CST-6)
Location: WELCH
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in CRAIG, OKLAHOMA
From 01-MAY-09 02:00:00 to 01-MAY-09 04:45:00 (CST-6)
Location: WELCH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy rain caused Cabin Creek to overflow.

Flash Flood in OTTAWA, OKLAHOMA
From 01-MAY-09 02:15:00 to 01-MAY-09 04:45:00 (CST-6)
Location: COMMERCE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain caused flooding, which required Step Fork Bridge to be closed.

Hail in OTTAWA, OKLAHOMA
From 01-MAY-09 02:30:00 to 01-MAY-09 02:30:00 (CST-6)
Location: AFTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Hail in OSAGE, OKLAHOMA
From 01-MAY-09 10:32:00 to 01-MAY-09 10:32:00 (CST-6)
Location: PAWHUSKA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WASHINGTON, OKLAHOMA
From 01-MAY-09 12:04:00 to 01-MAY-09 12:04:00 (CST-6)
Location: COPAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MAYES, OKLAHOMA
From 01-MAY-09 12:35:00 to 01-MAY-09 12:35:00 (CST-6)
Location: LOCUST GROVE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DELAWARE, OKLAHOMA
From 01-MAY-09 14:27:00 to 01-MAY-09 14:27:00 (CST-6)
Location: KANSAS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CRAIG, OKLAHOMA
From 01-MAY-09 14:38:00 to 01-MAY-09 14:38:00 (CST-6)
Location: CENTRALIA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MAYES, OKLAHOMA
From 01-MAY-09 05:45:00 to 01-MAY-09 05:45:00 (CST-6)
Location: LOCUST GROVE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in MAYES, OKLAHOMA
From 01-MAY-09 06:30:00 to 01-MAY-09 06:30:00 (CST-6)
Location: SALINA
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm winds estimated at 70 miles an hour damaged the high school football stadium at Salina.

Flash Flood in TULSA, OKLAHOMA
From 01-MAY-09 09:05:00 to 01-MAY-09 13:05:00 (CST-6)
Location: OWASSO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain caused severe street flooding across the city of Owasso.  Some streets had to be closed.  Water from the streets came right up to the doors of some businesses in a strip mall in one part of Owasso.

Flash Flood in OTTAWA, OKLAHOMA
From 01-MAY-09 09:30:00 to 01-MAY-09 15:00:00 (CST-6)
Location: FAIRLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy rains caused water to flow over several roads in and around Fairland.

Hail in CHEROKEE, OKLAHOMA
From 01-MAY-09 10:50:00 to 01-MAY-09 10:50:00 (CST-6)
Location: PEGGS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DELAWARE, OKLAHOMA
From 01-MAY-09 13:27:00 to 01-MAY-09 13:27:00 (CST-6)
Location: KANSAS
Magnitude: 1.75 
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public