With outflow boundaries floating around the state and a large upper low moving into the region, scattered storms formed across Oklahoma and western north Texas on the evening of the 10th.

Thunderstorm Wind in JACKSON, OKLAHOMA
From 10-MAY-17 16:35:00 to 10-MAY-17 16:35:00 (CST-6)
Location: (LTS)ALTUS AFB
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Hail in JACKSON, OKLAHOMA
From 10-MAY-17 16:40:00 to 10-MAY-17 16:40:00 (CST-6)
Location: WARREN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, OKLAHOMA
From 10-MAY-17 18:20:00 to 10-MAY-17 18:20:00 (CST-6)
Location: HEADRICK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in TILLMAN, OKLAHOMA
From 10-MAY-17 18:58:00 to 10-MAY-17 18:58:00 (CST-6)
Location: FREDERICK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in TILLMAN, OKLAHOMA
From 10-MAY-17 18:59:00 to 10-MAY-17 18:59:00 (CST-6)
Location: FREDERICK ARPT
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in TILLMAN, OKLAHOMA
From 10-MAY-17 19:04:00 to 10-MAY-17 19:04:00 (CST-6)
Location: FREDERICK ARPT
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in PAYNE, OKLAHOMA
From 10-MAY-17 20:30:00 to 10-MAY-17 20:30:00 (CST-6)
Location: PERKINS
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in JACKSON, OKLAHOMA
From 10-MAY-17 16:14:00 to 10-MAY-17 16:14:00 (CST-6)
Location: OLUSTEE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Thunderstorm Wind in JACKSON, OKLAHOMA
From 10-MAY-17 16:20:00 to 10-MAY-17 16:20:00 (CST-6)
Location: ELMER
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, OKLAHOMA
From 10-MAY-17 16:22:00 to 10-MAY-17 16:22:00 (CST-6)
Location: ALTUS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, OKLAHOMA
From 10-MAY-17 16:27:00 to 10-MAY-17 16:27:00 (CST-6)
Location: BLAIR
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JACKSON, OKLAHOMA
From 10-MAY-17 16:28:00 to 10-MAY-17 16:28:00 (CST-6)
Location: ALTUS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in JACKSON, OKLAHOMA
From 10-MAY-17 16:33:00 to 10-MAY-17 16:33:00 (CST-6)
Location: ALTUS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JACKSON, OKLAHOMA
From 10-MAY-17 16:35:00 to 10-MAY-17 16:35:00 (CST-6)
Location: (LTS)ALTUS AFB
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Hail in OKLAHOMA, OKLAHOMA
From 10-MAY-17 14:09:00 to 10-MAY-17 14:09:00 (CST-6)
Location: EDMOND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OKLAHOMA, OKLAHOMA
From 10-MAY-17 14:11:00 to 10-MAY-17 14:11:00 (CST-6)
Location: THE VILLAGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OKLAHOMA, OKLAHOMA
From 10-MAY-17 14:12:00 to 10-MAY-17 14:12:00 (CST-6)
Location: EDMOND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in JACKSON, OKLAHOMA
From 10-MAY-17 16:12:00 to 10-MAY-17 16:12:00 (CST-6)
Location: OLUSTEE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Tornado in COTTON, OKLAHOMA
From 10-MAY-17 19:36:00 to 10-MAY-17 19:41:00 (CST-6)
Location: DEVOL
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Storm chasers observed and photographed a tornado in far northwestern Cotton County. No damage was reported and the specific path is estimated.

Tornado in TILLMAN, OKLAHOMA
From 10-MAY-17 19:31:00 to 10-MAY-17 19:31:00 (CST-6)
Location: GRANDFIELD
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A tornado was observed by numerous storm chasers crossing State Highway 36 east of Loveland and north of Grandfield. No damage was reported.

Hail in JACKSON, OKLAHOMA
From 10-MAY-17 15:34:00 to 10-MAY-17 15:34:00 (CST-6)
Location: ELDORADO
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Tornado in TILLMAN, OKLAHOMA
From 10-MAY-17 19:05:00 to 10-MAY-17 19:05:00 (CST-6)
Location: FREDERICK ARPT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Storm chasers observed a brief tornado about 7 miles east-northeast of Davidson. No damage was reported and the location was estimated.

Thunderstorm Wind in CANADIAN, OKLAHOMA
From 10-MAY-17 19:24:00 to 10-MAY-17 19:24:00 (CST-6)
Location: UNION CITY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

No damage reported.