A large upper level trough became established over the western U.S. bringing strong southwest flow across the Southern Plains. At the surface, a north to south oriented dryline became well established across western Oklahoma. This dryline served as a focus for several rounds of supercell thunderstorms. Sporadic severe wind and hail occurred, along with a couple of brief tornadoes.

Flash Flood in OKLAHOMA, OKLAHOMA
From 07-MAY-14 23:50:00 to 07-MAY-14 23:50:00 (CST-6)
Location: VALLEY BROOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Up to two feet of water made roads impassable near southwest 89th street between Western and Walker avenues. No damage was reported.

Thunderstorm Wind in CADDO, OKLAHOMA
From 07-MAY-14 20:50:00 to 07-MAY-14 20:50:00 (CST-6)
Location: FT COBB RES DAM
Magnitude: 62.00 MG
Reported by: Amateur Radio

Measured on the northeast side of the reservoir.

Hail in CADDO, OKLAHOMA
From 07-MAY-14 20:53:00 to 07-MAY-14 20:53:00 (CST-6)
Location: ALBERT
Magnitude: 1.25 
Reported by: Amateur Radio

The hail was reported at the intersection of county street 2520 and county road 1230.

Hail in CADDO, OKLAHOMA
From 07-MAY-14 20:53:00 to 07-MAY-14 20:53:00 (CST-6)
Location: EAKLY
Magnitude: 1.75 
Reported by: Amateur Radio

The hail was reported at county road 1220 and county street 2510.

Thunderstorm Wind in CADDO, OKLAHOMA
From 07-MAY-14 20:53:00 to 07-MAY-14 20:53:00 (CST-6)
Location: ALBERT
Magnitude: 70.00 EG
Reported by: Amateur Radio

West facing windows were blown out by hail and high winds.

Thunderstorm Wind in CADDO, OKLAHOMA
From 07-MAY-14 20:56:00 to 07-MAY-14 20:56:00 (CST-6)
Location: ALBERT
Magnitude: 70.00 EG
Reported by: Amateur Radio

Home and car windows blown out by hail and wind.

Thunderstorm Wind in CADDO, OKLAHOMA
From 07-MAY-14 21:25:00 to 07-MAY-14 21:25:00 (CST-6)
Location: GRACEMONT
Magnitude: 61.00 EG
Reported by: Amateur Radio

Several large trees were downed blocking area roads.

Hail in CADDO, OKLAHOMA
From 07-MAY-14 21:45:00 to 07-MAY-14 21:45:00 (CST-6)
Location: ALBERT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in CADDO, OKLAHOMA
From 07-MAY-14 21:50:00 to 07-MAY-14 21:50:00 (CST-6)
Location: ALBERT
Magnitude: 1.75 
Reported by: Amateur Radio

Hail in COMANCHE, OKLAHOMA
From 07-MAY-14 22:05:00 to 07-MAY-14 22:05:00 (CST-6)
Location: MEDICINE PARK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OKLAHOMA, OKLAHOMA
From 07-MAY-14 22:45:00 to 07-MAY-14 22:45:00 (CST-6)
Location: (OKC)WILL ROGERS APT
Magnitude: 1.75 
Reported by: Public

Thunderstorm Wind in CLEVELAND, OKLAHOMA
From 07-MAY-14 23:21:00 to 07-MAY-14 23:21:00 (CST-6)
Location: MOORE
Magnitude: 61.00 EG
Reported by: Trained Spotter

Trees blown down along 92nd street between May and Pennsylvania avenues.

Hail in COTTON, OKLAHOMA
From 07-MAY-14 17:46:00 to 07-MAY-14 17:46:00 (CST-6)
Location: DEVOL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in HARMON, OKLAHOMA
From 07-MAY-14 18:18:00 to 07-MAY-14 18:18:00 (CST-6)
Location: VINSON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in COTTON, OKLAHOMA
From 07-MAY-14 18:41:00 to 07-MAY-14 18:41:00 (CST-6)
Location: TAYLOR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in COTTON, OKLAHOMA
From 07-MAY-14 18:41:00 to 07-MAY-14 18:41:00 (CST-6)
Location: TAYLOR
Magnitude: 2.25 
Reported by: Trained Spotter

No damage was reported.

Hail in JEFFERSON, OKLAHOMA
From 07-MAY-14 19:16:00 to 07-MAY-14 19:16:00 (CST-6)
Location: HASTINGS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in JEFFERSON, OKLAHOMA
From 07-MAY-14 19:16:00 to 07-MAY-14 19:16:00 (CST-6)
Location: HASTINGS
Magnitude: 56.00 EG
Reported by: Amateur Radio

Several trees and power lines downed.

Hail in STEPHENS, OKLAHOMA
From 07-MAY-14 19:18:00 to 07-MAY-14 19:18:00 (CST-6)
Location: CORUM
Magnitude: 1.75 
Reported by: Public

Hail in JEFFERSON, OKLAHOMA
From 07-MAY-14 19:30:00 to 07-MAY-14 19:30:00 (CST-6)
Location: ADDINGTON
Magnitude: 1.75 
Reported by: Amateur Radio

Thunderstorm Wind in JEFFERSON, OKLAHOMA
From 07-MAY-14 19:30:00 to 07-MAY-14 19:30:00 (CST-6)
Location: ADDINGTON
Magnitude: 56.00 EG
Reported by: Amateur Radio

Several power lines were blown down.

Hail in JEFFERSON, OKLAHOMA
From 07-MAY-14 19:33:00 to 07-MAY-14 19:33:00 (CST-6)
Location: ADDINGTON
Magnitude: 2.75 
Reported by: Trained Spotter

Substantial damage to several vehicles occurred. Car windows were shattered by baseball and larger sized hail.

Hail in STEPHENS, OKLAHOMA
From 07-MAY-14 19:57:00 to 07-MAY-14 19:57:00 (CST-6)
Location: DUNCAN
Magnitude: 1.75 
Reported by: Amateur Radio

Hail in STEPHENS, OKLAHOMA
From 07-MAY-14 20:02:00 to 07-MAY-14 20:02:00 (CST-6)
Location: DUNCAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in STEPHENS, OKLAHOMA
From 07-MAY-14 20:04:00 to 07-MAY-14 20:04:00 (CST-6)
Location: DUNCAN
Magnitude: 1.75 
Reported by: Amateur Radio

Hail in STEPHENS, OKLAHOMA
From 07-MAY-14 20:08:00 to 07-MAY-14 20:08:00 (CST-6)
Location: DUNCAN
Magnitude: 1.75 
Reported by: Amateur Radio

Hail in CADDO, OKLAHOMA
From 07-MAY-14 20:48:00 to 07-MAY-14 20:48:00 (CST-6)
Location: ALFALFA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in TILLMAN, OKLAHOMA
From 07-MAY-14 15:21:00 to 07-MAY-14 15:21:00 (CST-6)
Location: GRANDFIELD
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in TILLMAN, OKLAHOMA
From 07-MAY-14 15:22:00 to 07-MAY-14 15:22:00 (CST-6)
Location: GRANDFIELD
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in TILLMAN, OKLAHOMA
From 07-MAY-14 15:25:00 to 07-MAY-14 15:25:00 (CST-6)
Location: LOVELAND
Magnitude: 52.00 EG
Reported by: Public

Large tree limbs downed and shingles removed from the roof of one residence.

Hail in COMANCHE, OKLAHOMA
From 07-MAY-14 15:35:00 to 07-MAY-14 15:35:00 (CST-6)
Location: INDIAHOMA
Magnitude: 2.25 
Reported by: Trained Spotter

No damage was reported.

Hail in TILLMAN, OKLAHOMA
From 07-MAY-14 15:37:00 to 07-MAY-14 15:37:00 (CST-6)
Location: LOVELAND
Magnitude: 2.50 
Reported by: Trained Spotter

No damage was reported.

Hail in COMANCHE, OKLAHOMA
From 07-MAY-14 15:38:00 to 07-MAY-14 15:38:00 (CST-6)
Location: GERONIMO
Magnitude: 1.75 
Reported by: Amateur Radio

Hail in TILLMAN, OKLAHOMA
From 07-MAY-14 15:38:00 to 07-MAY-14 15:38:00 (CST-6)
Location: LOVELAND
Magnitude: 2.50 
Reported by: Trained Spotter

No damage was reported.

Hail in CADDO, OKLAHOMA
From 07-MAY-14 16:11:00 to 07-MAY-14 16:11:00 (CST-6)
Location: CARNEGIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in CUSTER, OKLAHOMA
From 07-MAY-14 16:33:00 to 07-MAY-14 16:33:00 (CST-6)
Location: CUSTER CITY
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in KIOWA, OKLAHOMA
From 07-MAY-14 17:00:00 to 07-MAY-14 17:00:00 (CST-6)
Location: ROOSEVELT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in TILLMAN, OKLAHOMA
From 07-MAY-14 17:39:00 to 07-MAY-14 17:39:00 (CST-6)
Location: LOVELAND
Magnitude: 1.50 
Reported by: Public

Thunderstorm Wind in TILLMAN, OKLAHOMA
From 07-MAY-14 17:40:00 to 07-MAY-14 17:40:00 (CST-6)
Location: GRANDFIELD
Magnitude: 56.00 MG
Reported by: Mesonet

Hail in TILLMAN, OKLAHOMA
From 07-MAY-14 15:28:00 to 07-MAY-14 15:28:00 (CST-6)
Location: GRANDFIELD
Magnitude: 1.75 
Reported by: Trained Spotter

Tornado in COMANCHE, OKLAHOMA
From 07-MAY-14 18:06:00 to 07-MAY-14 18:09:00 (CST-6)
Location: WICHITA MTNS NWR HQ
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Employees of the Wichita Mountain National Wildlife Refuge observed this tornado in the north part of the refuge. A ground survey by the refuge deputy manager indicated that the tornado developed southwest of Moko Mountain and initially moved northeast toward the 2,288 foot peak. The tornado then turned north-northwest moving down the north slope of Moko Mountain. Numerous trees were snapped and uprooted along the path.

Hail in CUSTER, OKLAHOMA
From 07-MAY-14 16:33:00 to 07-MAY-14 16:33:00 (CST-6)
Location: CUSTER CITY
Magnitude: 1.75 
Reported by: Public