A SW-NE jet streak segment set up across New Mexico with good lift downstream of the jet max across the northern Panhandles where a strong 500 mb 40 kt. jet was also present across the Panhandles. A perturbation in the mean 500 mb flow moving across the southern Rockies helped to generate a small but strong line segment across eastern New Mexico which eventually moved east throughout the Oklahoma and far northern Texas Panhandles.  The path of the line-segment storms followed along a noticeable 850-700 mb moisture gradient oriented NW-SE  just downstream of the 700 mb perturbation axis. As the line of storms raced east, large hail up to tennis ball sized cause some damages to home. Damaging wind gusts from RFD's and the storms progression did also cause some damage. On the southern edge of the line, even a funnel cloud was reported at one point in far NE TX Panhandle.

Hail in CIMARRON, OKLAHOMA
From 30-MAY-18 17:47:00 to 30-MAY-18 17:47:00 (CST-6)
Location: BOISE CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter sized hail reported west of Boise City.

Hail in CIMARRON, OKLAHOMA
From 30-MAY-18 18:21:00 to 30-MAY-18 18:21:00 (CST-6)
Location: GRIGGS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter measured a 1.2 inch maximum hail size.

Hail in TEXAS, OKLAHOMA
From 30-MAY-18 19:15:00 to 30-MAY-18 19:15:00 (CST-6)
Location: GUYMON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Penny sized hail on the south side of Guyman.

Hail in CIMARRON, OKLAHOMA
From 30-MAY-18 20:15:00 to 30-MAY-18 20:15:00 (CST-6)
Location: BOISE CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in CIMARRON, OKLAHOMA
From 30-MAY-18 20:18:00 to 30-MAY-18 20:18:00 (CST-6)
Location: BOISE CITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny size hail near Boise City.

Hail in CIMARRON, OKLAHOMA
From 30-MAY-18 20:22:00 to 30-MAY-18 20:22:00 (CST-6)
Location: BOISE CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail in Boise City.

Hail in CIMARRON, OKLAHOMA
From 30-MAY-18 21:05:00 to 30-MAY-18 21:05:00 (CST-6)
Location: BOISE CITY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ping pong ball size hail southeast of Boise City.

Hail in TEXAS, OKLAHOMA
From 30-MAY-18 21:46:00 to 30-MAY-18 21:46:00 (CST-6)
Location: GUYMON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in TEXAS, OKLAHOMA
From 30-MAY-18 21:50:00 to 30-MAY-18 21:50:00 (CST-6)
Location: GUYMON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One inch diameter fell near Guymon.

Hail in TEXAS, OKLAHOMA
From 30-MAY-18 21:55:00 to 30-MAY-18 21:55:00 (CST-6)
Location: GUYMON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Picture from social media showed quarter size hail.

Thunderstorm Wind in TEXAS, OKLAHOMA
From 30-MAY-18 18:40:00 to 30-MAY-18 18:40:00 (CST-6)
Location: EVA
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Eva mesonet reported a 60 mph wind gust.

Thunderstorm Wind in TEXAS, OKLAHOMA
From 30-MAY-18 19:15:00 to 30-MAY-18 19:15:00 (CST-6)
Location: GUYMON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter estimated 60 mph wind gust.

Thunderstorm Wind in BEAVER, OKLAHOMA
From 30-MAY-18 20:40:00 to 30-MAY-18 20:40:00 (CST-6)
Location: BEAVER
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Beaver mesonet reported a 59 mph wind gust.