Shortwave trough over south central CO tracked southeast across the northern Panhandles. Large scale forcing allowed for storms to develop over the mountains to the west and continued to track east. Post frontal stratus deck continued to erode with
daytime heating which resulted in steep mid level laps rates for sufficient MLCAPE values 500-1500 J/kg along with effective shear values of 40-50 kts. This provided support for isolated to scattered supercells capable of producing large hail and damaging winds up to 75 mph around sunset. Several reports of up to baseball size hail and numerous damaging wind reports were the result across the northern TX Panhandle and all across the OK Panhandle.

Hail in CIMARRON, OKLAHOMA
From 27-MAY-17 18:14:00 to 27-MAY-17 18:14:00 (CST-6)
Location: FELT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in TEXAS, OKLAHOMA
From 27-MAY-17 18:48:00 to 27-MAY-17 18:48:00 (CST-6)
Location: EVA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in TEXAS, OKLAHOMA
From 27-MAY-17 18:55:00 to 27-MAY-17 18:55:00 (CST-6)
Location: EVA
Magnitude: 1.75 
Reported by: Public

Late report of golf ball size hail reported via Facebook. Time estimated by radar.

Hail in TEXAS, OKLAHOMA
From 27-MAY-17 19:45:00 to 27-MAY-17 19:45:00 (CST-6)
Location: HOOKER
Magnitude: 2.75 
Reported by: Emergency Manager

Baseball size hail reported with numerous windows broken and damage to property.

Thunderstorm Wind in TEXAS, OKLAHOMA
From 27-MAY-17 19:45:00 to 27-MAY-17 19:45:00 (CST-6)
Location: HOOKER
Magnitude: 61.00 EG
Reported by: Emergency Manager

Estimated wind gust of 70 MPH.

Thunderstorm Wind in TEXAS, OKLAHOMA
From 27-MAY-17 19:50:00 to 27-MAY-17 19:50:00 (CST-6)
Location: HOOKER
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in TEXAS, OKLAHOMA
From 27-MAY-17 19:53:00 to 27-MAY-17 19:53:00 (CST-6)
Location: ADAMS
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BEAVER, OKLAHOMA
From 27-MAY-17 20:09:00 to 27-MAY-17 20:09:00 (CST-6)
Location: BOYD
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in TEXAS, OKLAHOMA
From 27-MAY-17 20:10:00 to 27-MAY-17 20:10:00 (CST-6)
Location: BAKER
Magnitude: 61.00 EG
Reported by: Storm Chaser

Estimated winds of 70 MPH.

Hail in BEAVER, OKLAHOMA
From 27-MAY-17 20:13:00 to 27-MAY-17 20:13:00 (CST-6)
Location: BRYANS CORNER
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Baseball size hail reported with damage to windows and vehicles.

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 20:17:00 to 27-MAY-17 20:17:00 (CST-6)
Location: BRYANS CORNER
Magnitude: 52.00 EG
Reported by: Emergency Manager

Powerlines down with power out in the area. Some damage to property due to winds.

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 20:22:00 to 27-MAY-17 20:22:00 (CST-6)
Location: BALKO
Magnitude: 52.00 EG
Reported by: Emergency Manager

Numerous downed powerlines due to straight line winds.

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 20:29:00 to 27-MAY-17 20:29:00 (CST-6)
Location: BALKO
Magnitude: 52.00 EG
Reported by: Emergency Manager

Numerous downed powerlines due to straight line winds.

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 20:30:00 to 27-MAY-17 20:30:00 (CST-6)
Location: BALKO
Magnitude: 52.00 EG
Reported by: Emergency Manager

Late report...18-wheeler truck blown over due to thunderstorm winds.

Hail in BEAVER, OKLAHOMA
From 27-MAY-17 20:33:00 to 27-MAY-17 20:33:00 (CST-6)
Location: ELMWOOD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 20:33:00 to 27-MAY-17 20:33:00 (CST-6)
Location: ELMWOOD
Magnitude: 52.00 EG
Reported by: Emergency Manager

Trees and powerlines downed due to thunderstorm wind gust.

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 20:41:00 to 27-MAY-17 20:41:00 (CST-6)
Location: LOGAN
Magnitude: 52.00 EG
Reported by: Public

Broken windows in house and cars.

Hail in BEAVER, OKLAHOMA
From 27-MAY-17 20:48:00 to 27-MAY-17 20:48:00 (CST-6)
Location: ELMWOOD
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 20:55:00 to 27-MAY-17 20:55:00 (CST-6)
Location: LOGAN
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 20:55:00 to 27-MAY-17 20:55:00 (CST-6)
Location: BEAVER
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 20:56:00 to 27-MAY-17 20:56:00 (CST-6)
Location: SLAPOUT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Late report...18-wheeler blown over due to thunderstorm winds.

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 21:05:00 to 27-MAY-17 21:05:00 (CST-6)
Location: BEAVER
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in BEAVER, OKLAHOMA
From 27-MAY-17 21:20:00 to 27-MAY-17 21:20:00 (CST-6)
Location: LOGAN
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in TEXAS, OKLAHOMA
From 29-MAY-17 19:30:00 to 29-MAY-17 19:30:00 (CST-6)
Location: GOODWELL
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet