A slow-moving, strong upper level storm system moved from the Central Rockies into the Central Plains on the 18th and 19th. A dry line sharpened ahead of this system across western Oklahoma by early afternoon on the 18th, as a frontal boundary over northern Oklahoma shifted north into Kansas as a warm front. Warm, very moist, and very unstable air was in place east of the dry line and south of the warm front, and thunderstorms erupted across western Oklahoma during the early afternoon near the dry line. These storms evolved into a line by the time they moved into and across eastern Oklahoma during the evening hours. The storms produced multiple tornadoes, damaging wind, and hail up to half dollar size as they moved across eastern Oklahoma.
Another round of thunderstorms developed and moved across eastern Oklahoma during the morning hours of the 19th. No severe weather occurred with these storms but locally heavy rainfall did occur. As a cold front pushed into the area during the afternoon hours, another round of strong to severe thunderstorms developed. Hail up to half dollar size and damaging wind occurred with the strongest storms. Several widespread rainfall events over the past couple days set the stage for this event to evolve into flash flooding during the evening of the 19th through the morning hours of the 20th.

Tornado in MCINTOSH, OKLAHOMA
From 18-MAY-17 20:57:00 to 18-MAY-17 21:09:00 (CST-6)
Location: BOWER
Tornado F-scale: EF2
Property damage: 175.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado developed south of Highway 9 and west of the Indian Nation Turnpike where it snapped and uprooted trees. As the tornado moved east-northeast, it crossed the Indian Nation Turnpike where it snapped trees. A large outbuilding was destroyed, a home was damaged, numerous trees were snapped or uprooted, and a metal high-voltage truss tower was blown down as it crossed Highway 9. The tornado continued to move east-northeast snapping and uprooting trees, and then curved to the northeast before dissipating after it crossed the N 4090 Road. Based on this damage, maximum estimated wind in the tornado was 110 to 120 mph.

Tornado in MCINTOSH, OKLAHOMA
From 18-MAY-17 21:11:00 to 18-MAY-17 21:15:00 (CST-6)
Location: STIDHAM
Tornado F-scale: EF1
Property damage: 75.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado destroyed a mobile home, damaged the roofs of several other homes, destroyed outbuildings, snapped or uprooted numerous trees, and blew down power poles. Based on this damage, maximum estimated wind in the tornado was 95 to 105 mph.

Tornado in MCINTOSH, OKLAHOMA
From 18-MAY-17 21:15:00 to 18-MAY-17 21:19:00 (CST-6)
Location: FAME
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado destroyed an outbuilding, damaged a home, snapped or uprooted numerous trees, and blew down power poles. Based on this damage, maximum estimated wind in the tornado was 95 to 105 mph.

Thunderstorm Wind in PITTSBURG, OKLAHOMA
From 18-MAY-17 20:44:00 to 18-MAY-17 20:44:00 (CST-6)
Location: ASHLAND
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Strong thunderstorm wind snapped large tree limbs.

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 18-MAY-17 20:55:00 to 18-MAY-17 20:55:00 (CST-6)
Location: BOWER
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Strong thunderstorm wind uprooted trees and snapped large tree limbs.

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 18-MAY-17 21:01:00 to 18-MAY-17 21:01:00 (CST-6)
Location: RAIFORD
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Strong thunderstorm wind uprooted trees.

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 18-MAY-17 21:12:00 to 18-MAY-17 21:12:00 (CST-6)
Location: STIDHAM
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Strong thunderstorm wind snapped large tree limbs.

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 18-MAY-17 21:18:00 to 18-MAY-17 21:18:00 (CST-6)
Location: EUFAULA ARPK
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Strong thunderstorm wind uprooted trees.

Tornado in MCINTOSH, OKLAHOMA
From 18-MAY-17 21:25:00 to 18-MAY-17 21:32:00 (CST-6)
Location: CHECOTAH
Tornado F-scale: EF1
Property damage: 125.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado developed north of I-40 near the N 4230 Road where it snapped large tree limbs, damaged homes, and blew down privacy fences. It moved northeast snapping or uprooting trees and damaging outbuildings. A home was damaged, a large outbuilding was destroyed, power poles were blown down, and numerous trees were snapped or uprooted near the N 4270 Road. The tornado dissipated after crossing the N 4290 Road, to the north of the E 1020 Road. Based on this damage, maximum estimated wind in the tornado was 100 to 110 mph.

Thunderstorm Wind in WAGONER, OKLAHOMA
From 18-MAY-17 21:37:00 to 18-MAY-17 21:37:00 (CST-6)
Location: CLARKSVILLE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Strong thunderstorm wind snapped large tree limbs.

Tornado in MUSKOGEE, OKLAHOMA
From 18-MAY-17 21:35:00 to 18-MAY-17 21:40:00 (CST-6)
Location: MARTIN
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado snapped or uprooted numerous trees, damaged outbuildings, and blew down power poles. Based on this damage, maximum estimated wind in the tornado was 90 to 100 mph.

Tornado in MUSKOGEE, OKLAHOMA
From 18-MAY-17 21:37:00 to 18-MAY-17 21:39:00 (CST-6)
Location: WEST MUSKOGEE
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado developed on Eagle Crest Golf Club, where several homes were damaged and trees were uprooted. It moved northeast blowing down trees and power poles, and then dissipated on the west side of Muskogee. Based on this damage, maximum estimated wind in the tornado was 90 to 100 mph.

Tornado in WAGONER, OKLAHOMA
From 18-MAY-17 21:39:00 to 18-MAY-17 21:52:00 (CST-6)
Location: PORTER
Tornado F-scale: EF1
Property damage: 120.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado developed south of Porter where it uprooted trees and destroyed an outbuilding. It moved northeast damaging homes, destroying outbuildings, uprooting or snapping numerous trees, and blowing down power poles. The tornado dissipated on the northwestern side of Wagoner, north of Highway 51. Based on this damage, maximum estimated wind in the tornado was 95 to 105 mph.

Thunderstorm Wind in WAGONER, OKLAHOMA
From 18-MAY-17 21:50:00 to 18-MAY-17 21:50:00 (CST-6)
Location: LA BARGE
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Strong thunderstorm wind damaged the canopy of a gas station.

Tornado in MUSKOGEE, OKLAHOMA
From 18-MAY-17 21:40:00 to 18-MAY-17 21:43:00 (CST-6)
Location: MUSKOGEE
Tornado F-scale: EF2
Property damage: 350.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado developed over the north side of Muskogee where it damaged homes and snapped or uprooted trees. The tornado destroyed a well-constructed metal framed building south of Highway 62, and then tore the roof off a couple apartment buildings north of Highway 62. Trees and power poles were snapped and businesses along Highway 62 had roof damage and broken windows. The tornado continued northeast destroying outbuildings and blowing down trees, dissipating northeast of the intersection of N Main and E Harris Road. Based on this damage, maximum estimated wind in the tornado was 115 to 125 mph.

Tornado in CHEROKEE, OKLAHOMA
From 18-MAY-17 21:51:00 to 18-MAY-17 21:59:00 (CST-6)
Location: MELVIN
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the third segment of a three segment tornado. In Cherokee County, this tornado moved across Fort Gibson Lake, then snapped and uprooted numerous trees in Sequoyah State Park. Numerous trees were snapped and uprooted as it moved northeast across Highway 51 until it dissipated east of the N 400 Road and north of the W 700 Road. Based on this damage, maximum estimated wind in this segment of the tornado was 90 to 100 mph.

Tornado in MAYES, OKLAHOMA
From 18-MAY-17 22:04:00 to 18-MAY-17 22:05:00 (CST-6)
Location: MURPHY
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the second segment of a two segment tornado. In Mayes County, this tornado snapped large tree limbs and then dissipated north of Ear Bob Road. Based on this damage, maximum estimated wind in this segment of the tornado was 80 to 85 mph.

Tornado in CHEROKEE, OKLAHOMA
From 18-MAY-17 22:01:00 to 18-MAY-17 22:06:00 (CST-6)
Location: LOST CITY
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the first segment of a two segment tornado. In Cherokee County, this tornado snapped and uprooted numerous trees. The tornado continued into Mayes County. Based on this damage, maximum estimated wind in this segment of the tornado was 100 to 110 mph.

Tornado in MAYES, OKLAHOMA
From 18-MAY-17 22:06:00 to 18-MAY-17 22:07:00 (CST-6)
Location: MURPHY
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the second segment of a two segment tornado. In Mayes County, this tornado uprooted trees and snapped large tree limbs. Based on this damage, maximum estimated wind in this segment of the tornado was 90 to 100 mph.

Hail in CREEK, OKLAHOMA
From 18-MAY-17 19:20:00 to 18-MAY-17 19:20:00 (CST-6)
Location: SAPULPA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CREEK, OKLAHOMA
From 18-MAY-17 19:30:00 to 18-MAY-17 19:30:00 (CST-6)
Location: SAPULPA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MAYES, OKLAHOMA
From 18-MAY-17 20:45:00 to 18-MAY-17 20:45:00 (CST-6)
Location: PRYOR
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in ROGERS, OKLAHOMA
From 18-MAY-17 21:10:00 to 18-MAY-17 21:10:00 (CST-6)
Location: OOLOGAH
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HASKELL, OKLAHOMA
From 18-MAY-17 22:15:00 to 18-MAY-17 22:15:00 (CST-6)
Location: MC CURTAIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in HASKELL, OKLAHOMA
From 18-MAY-17 22:45:00 to 18-MAY-17 22:45:00 (CST-6)
Location: MC CURTAIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in MAYES, OKLAHOMA
From 19-MAY-17 04:47:00 to 19-MAY-17 04:47:00 (CST-6)
Location: PRYOR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in MAYES, OKLAHOMA
From 19-MAY-17 04:50:00 to 19-MAY-17 04:50:00 (CST-6)
Location: PRYOR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in WAGONER, OKLAHOMA
From 19-MAY-17 17:22:00 to 19-MAY-17 17:22:00 (CST-6)
Location: LA BARGE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHEROKEE, OKLAHOMA
From 19-MAY-17 19:27:00 to 19-MAY-17 19:27:00 (CST-6)
Location: HULBERT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in PITTSBURG, OKLAHOMA
From 18-MAY-17 20:56:00 to 18-MAY-17 21:02:00 (CST-6)
Location: CELESTINE
Tornado F-scale: EF1
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado snapped or uprooted numerous trees and blew down power lines. Based on this damage, maximum estimated wind in the tornado was 100 to 110 mph.

Tornado in MUSKOGEE, OKLAHOMA
From 18-MAY-17 21:41:00 to 18-MAY-17 21:45:00 (CST-6)
Location: MC LAIN
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado developed east of S 75th St E and north of the E 965 Road. It moved east-northeast until crossing E 93rd St S where it turned northeast.  The tornado then turned north as it crossed the N 4380 Road. The tornado uprooted trees, snapped numerous large tree limbs, damaged outbuildings, and blew down power poles. Based on this damage, maximum estimated wind in the tornado was 85 to 95 mph.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 20:33:00 to 18-MAY-17 20:33:00 (CST-6)
Location: TULSA R L JONES ARPT
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at Tulsa R L Jones Riverside Airport measured 62 mph thunderstorm wind gusts.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 18-MAY-17 20:35:00 to 18-MAY-17 20:35:00 (CST-6)
Location: SAND SPGS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind snapped large tree limbs.

Flash Flood in CREEK, OKLAHOMA
From 19-MAY-17 18:38:00 to 20-MAY-17 01:00:00 (CST-6)
Location: KIEFER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Portions of Highway 75A were flooded between W 161st Street S and W 171st Street S.

Thunderstorm Wind in TULSA, OKLAHOMA
From 19-MAY-17 18:45:00 to 19-MAY-17 18:45:00 (CST-6)
Location: JENKS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated to near 60 mph.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 20:36:00 to 18-MAY-17 20:36:00 (CST-6)
Location: ALSUMA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm wind gusts were estimated to 65 mph near E 41st Street and S Sheridan Road.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 20:39:00 to 18-MAY-17 20:39:00 (CST-6)
Location: DAWSON
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station in north Tulsa measured 64 mph thunderstorm wind gusts.

Thunderstorm Wind in ROGERS, OKLAHOMA
From 19-MAY-17 19:06:00 to 19-MAY-17 19:06:00 (CST-6)
Location: CLAREMORE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated to near 60 mph.

Thunderstorm Wind in MAYES, OKLAHOMA
From 19-MAY-17 19:09:00 to 19-MAY-17 19:09:00 (CST-6)
Location: CHOUTEAU
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm wind gusts were estimated to near 60 mph.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 20:53:00 to 18-MAY-17 20:53:00 (CST-6)
Location: TURLEY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind uprooted a tree in Turley.

Thunderstorm Wind in PITTSBURG, OKLAHOMA
From 18-MAY-17 20:55:00 to 18-MAY-17 20:55:00 (CST-6)
Location: SCIPIO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Strong thunderstorm wind snapped large tree limbs.

Thunderstorm Wind in MAYES, OKLAHOMA
From 19-MAY-17 19:09:00 to 19-MAY-17 19:09:00 (CST-6)
Location: PRYOR
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm wind gusts were estimated to near 60 mph.

Flash Flood in OKMULGEE, OKLAHOMA
From 19-MAY-17 19:34:00 to 20-MAY-17 01:00:00 (CST-6)
Location: OKMULGEE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several roads in and around town were flooded and closed.

Thunderstorm Wind in PITTSBURG, OKLAHOMA
From 18-MAY-17 21:02:00 to 18-MAY-17 21:02:00 (CST-6)
Location: BREWER
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Strong thunderstorm wind blew down several trees.

Thunderstorm Wind in OSAGE, OKLAHOMA
From 18-MAY-17 21:05:00 to 18-MAY-17 21:05:00 (CST-6)
Location: WYNONA
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station near Wynona measured 59 mph thunderstorm wind gusts.

Flash Flood in OKMULGEE, OKLAHOMA
From 19-MAY-17 20:45:00 to 20-MAY-17 01:00:00 (CST-6)
Location: BEGGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Portions of Highway 16 and Highway 75A were flooded and closed in and around Beggs. Several motorists were stranded in high water.

Flash Flood in WAGONER, OKLAHOMA
From 19-MAY-17 21:07:00 to 20-MAY-17 01:00:00 (CST-6)
Location: LA BARGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Portions of Cherokee Street and other roads in and around Wagoner were flooded and closed. High water affected several neighborhoods.

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 18-MAY-17 21:09:00 to 18-MAY-17 21:09:00 (CST-6)
Location: HANNA
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Strong thunderstorm wind blew down power lines.

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 18-MAY-17 21:10:00 to 18-MAY-17 21:10:00 (CST-6)
Location: ONAPA
Magnitude: 70.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Strong thunderstorm wind blew down high voltage transmission power lines onto Old Highway 69 south of Checotah, making the roadway impassable.

Flash Flood in MCINTOSH, OKLAHOMA
From 19-MAY-17 21:08:00 to 20-MAY-17 02:00:00 (CST-6)
Location: CHECOTAH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Significant flooding occurred in and around Checotah with several roads closed.

Flash Flood in OKMULGEE, OKLAHOMA
From 19-MAY-17 21:08:00 to 20-MAY-17 01:00:00 (CST-6)
Location: OKMULGEE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Portions of numerous roads were flooded and closed across town.

Thunderstorm Wind in MCINTOSH, OKLAHOMA
From 18-MAY-17 21:15:00 to 18-MAY-17 21:15:00 (CST-6)
Location: EUFAULA MUNI ARPT
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station near Eufaula measured 66 mph thunderstorm wind gusts.

Thunderstorm Wind in PITTSBURG, OKLAHOMA
From 18-MAY-17 21:15:00 to 18-MAY-17 21:15:00 (CST-6)
Location: ULAN
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong thunderstorm wind blew down a large tree onto the Indian Nation Turnpike, resulting in southbound traffic being diverted.

Flash Flood in CHEROKEE, OKLAHOMA
From 19-MAY-17 21:30:00 to 20-MAY-17 03:00:00 (CST-6)
Location: TAHLEQUAH ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Portions of numerous roads were flooded and closed across town.

Flash Flood in OKFUSKEE, OKLAHOMA
From 19-MAY-17 21:30:00 to 20-MAY-17 02:00:00 (CST-6)
Location: BEARDEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Portions of Highway 48 were flooded south of I-40.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 21:20:00 to 18-MAY-17 21:20:00 (CST-6)
Location: BIXBY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated to 60 mph.

Thunderstorm Wind in MUSKOGEE, OKLAHOMA
From 18-MAY-17 21:30:00 to 18-MAY-17 21:30:00 (CST-6)
Location: JAMESVILLE
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Oklahoma Mesonet station south of Haskell measured 67 mph thunderstorm wind gusts.

Flash Flood in OKMULGEE, OKLAHOMA
From 19-MAY-17 22:05:00 to 20-MAY-17 01:00:00 (CST-6)
Location: MORRIS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Portions of Highway 62 were flooded and closed east of Morris.

Flash Flood in MAYES, OKLAHOMA
From 19-MAY-17 22:19:00 to 20-MAY-17 01:00:00 (CST-6)
Location: LOCUST GROVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several roads in and around Locust Grove were flooded and closed.

Tornado in PITTSBURG, OKLAHOMA
From 18-MAY-17 20:46:00 to 18-MAY-17 20:54:00 (CST-6)
Location: ASHLAND
Tornado F-scale: EF1
Property damage: 30.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado developed north of Ashland and moved east-northeast, snapping or uprooting numerous trees, damaging an outbuilding, damaging a home, and snapping power poles. Based on this damage, maximum estimated wind in the tornado was 95 to 105 mph.

Tornado in WAGONER, OKLAHOMA
From 18-MAY-17 21:30:00 to 18-MAY-17 21:36:00 (CST-6)
Location: CHOSKA
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado developed just east of the Arkansas River, south of Redbird and southeast of Haskell. The tornado destroyed a center-pivot irrigation system and snapped several power poles and trees as it moved northeast. The Oklahoma Mesonet station southwest of Porter measured 82 mph gusts as the tornado passed the site toward the end of its life cycle. Based on this damage, maximum estimated wind in the tornado was 90 to 100 mph.

Thunderstorm Wind in MUSKOGEE, OKLAHOMA
From 18-MAY-17 21:44:00 to 18-MAY-17 21:44:00 (CST-6)
Location: BRAGGS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Strong thunderstorm wind snapped large tree limbs.

Flash Flood in OKMULGEE, OKLAHOMA
From 19-MAY-17 22:47:00 to 20-MAY-17 01:00:00 (CST-6)
Location: PRESTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Portions of Highway 75A were flooded and closed between Preston and Beggs. Portions of Hectorville Road were also flooded and closed.

Flash Flood in SEQUOYAH, OKLAHOMA
From 19-MAY-17 22:57:00 to 20-MAY-17 03:00:00 (CST-6)
Location: BLACKGUM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Portions of Highway 10A were flooded and closed north of Gore.

Tornado in MUSKOGEE, OKLAHOMA
From 18-MAY-17 21:45:00 to 18-MAY-17 21:46:00 (CST-6)
Location: CHASE
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the first segment of a three segment tornado. In Muskogee County, the tornado snapped and uprooted numerous trees. The tornado continued into Wagoner County. Based on this damage, maximum estimated wind in this segment of the tornado was 90 to 100 mph.

Tornado in WAGONER, OKLAHOMA
From 18-MAY-17 21:46:00 to 18-MAY-17 21:51:00 (CST-6)
Location: WYBARK
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the second segment of a three segment tornado. In Wagoner County, this tornado snapped and uprooted numerous trees. The tornado continued into Cherokee County. Based on this damage, maximum estimated wind in this segment of the tornado was 95 to 105 mph.

Flash Flood in PITTSBURG, OKLAHOMA
From 20-MAY-17 00:30:00 to 20-MAY-17 04:00:00 (CST-6)
Location: KREBS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Severe flooding was reported in Krebs with several roads under water and flood waters threatening homes.

Flash Flood in CREEK, OKLAHOMA
From 20-MAY-17 00:40:00 to 20-MAY-17 02:00:00 (CST-6)
Location: SAPULPA
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Severe flooding was reported in Sapulpa. Several inches of flood water inundated a home.

Thunderstorm Wind in CHEROKEE, OKLAHOMA
From 18-MAY-17 22:05:00 to 18-MAY-17 22:05:00 (CST-6)
Location: STANDING ROCK
Magnitude: 65.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorm wind blew down trees and power poles on Highway 82 and Carters Landing Road.

Tornado in WAGONER, OKLAHOMA
From 18-MAY-17 21:48:00 to 18-MAY-17 22:04:00 (CST-6)
Location: GIBSON
Tornado F-scale: EF1
Property damage: 200.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the first segment of a two segment tornado. In Wagoner County, this tornado developed southeast of Wagoner in the lowlands of Fort Gibson Lake. It moved northeast uprooting numerous trees, damaging homes, and destroying outbuildings north of Highway 51. The tornado then moved over Fort Gibson Lake and back onshore northeast of Wagoner where trees were uprooted and snapped, several boat docks were destroyed, and homes were damaged. It moved back over Fort Gibson Lake and then across the far northeastern portion of Wagoner County where trees were uprooted and snapped. The tornado continued into Mayes County. Based on this damage, maximum estimated wind in this segment of the tornado was 90 to 100 mph.

Flood in OKFUSKEE, OKLAHOMA
From 20-MAY-17 02:00:00 to 20-MAY-17 18:45:00 (CST-6)
Location: OKEMAH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Highway 48 was flooded and closed one mile south of I-40 at the Canadian River Bridge.

Flood in OKMULGEE, OKLAHOMA
From 20-MAY-17 02:00:00 to 20-MAY-17 18:45:00 (CST-6)
Location: HECTOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several roads were flooded and closed across northern Okmulgee County near Liberty and Hectorville.

Flood in PITTSBURG, OKLAHOMA
From 20-MAY-17 04:00:00 to 21-MAY-17 07:45:00 (CST-6)
Location: DOW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Portions of Highway 63 were flooded and closed from Bache Road to Haileyville.

Flood in PITTSBURG, OKLAHOMA
From 20-MAY-17 04:00:00 to 21-MAY-17 07:45:00 (CST-6)
Location: MC ALESTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Portions of Highway 270 were flooded and closed west of the Indian Nation Turnpike.

Thunderstorm Wind in CHEROKEE, OKLAHOMA
From 18-MAY-17 22:15:00 to 18-MAY-17 22:15:00 (CST-6)
Location: ELDON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Strong thunderstorm wind snapped large tree limbs northeast of Eldon.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 19:12:00 to 18-MAY-17 19:12:00 (CST-6)
Location: SAND SPGS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm wind gusts were estimated to near 60 mph south of Sand Springs.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 19:25:00 to 18-MAY-17 19:25:00 (CST-6)
Location: SAND SPGS
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm wind gusts of 72 mph were measured.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 19:45:00 to 18-MAY-17 19:45:00 (CST-6)
Location: COLLINSVILLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Strong thunderstorm wind snapped large tree limbs near E 116th Street N and N Garnett Road.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 20:08:00 to 18-MAY-17 20:08:00 (CST-6)
Location: TULSA R L JONES ARPT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at Tulsa R L Jones Riverside Airport measured 60 mph thunderstorm wind gusts.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 20:30:00 to 18-MAY-17 20:30:00 (CST-6)
Location: BOZARTH
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm wind gusts were estimated to 70 mph.

Thunderstorm Wind in DELAWARE, OKLAHOMA
From 18-MAY-17 22:25:00 to 18-MAY-17 22:25:00 (CST-6)
Location: LEACH
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorm wind uprooted trees and snapped large tree limbs.

Thunderstorm Wind in DELAWARE, OKLAHOMA
From 18-MAY-17 22:44:00 to 18-MAY-17 22:44:00 (CST-6)
Location: MOSELEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated to 60 mph.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 20:30:00 to 18-MAY-17 20:30:00 (CST-6)
Location: BOZARTH
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Strong thunderstorm wind snapped large tree limbs near E 63rd Street and S Peoria Avenue.

Thunderstorm Wind in TULSA, OKLAHOMA
From 18-MAY-17 20:30:00 to 18-MAY-17 20:30:00 (CST-6)
Location: TULSA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm wind gusts were estimated to 65 mph. Large tree limbs were snapped by this wind.

Hail in WAGONER, OKLAHOMA
From 19-MAY-17 17:23:00 to 19-MAY-17 17:23:00 (CST-6)
Location: LA BARGE
Magnitude: 1.25 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm Wind in TULSA, OKLAHOMA
From 19-MAY-17 18:30:00 to 19-MAY-17 18:30:00 (CST-6)
Location: TURLEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorm wind snapped large tree limbs at E 51st Street N and N St. Louis Avenue.