Perturbation off the mean 500 mb flow downstream of a small amplitude ridge axis provided a late morning round of thunderstorms for the northeast TX/OK Panhandles. As a result, some severe criteria hail was reported. The more widespread thunderstorm activity happened on the afternoon of the 17th. A dryline setup across the western and central combined Panhandles with SE surface flow around 30-40 kts and 500 mb flow out of the west of 40-50 kts. set the stages for good lift in the atmosphere with decent directional shear. DCAPE and MUCAPE  values of around 1500 J/Kg with good mid-level lapse rates allowed supercell initial development of thunderstorms. Large hail up to 2 were reported as storms moved from west to east across the central and eastern Panhandles. Eventually, cells converged into line segments and moved out of the east transitioning into more of a wind threat entering the evening hours as storms finally moved to the east out of the region.

Flood in HUTCHINSON, TEXAS
From 17-MAY-18 18:30:00 to 17-MAY-18 18:50:00 (CST-6)
Location: BORGER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

NW Borger had approximately 6 inches of running water in flood prone roadways around 730 PM.  The water quickly drained off and closed roads were reopened by 750 PM.

Hail in LIPSCOMB, TEXAS
From 17-MAY-18 09:27:00 to 17-MAY-18 09:27:00 (CST-6)
Location: HIGGINS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MOORE, TEXAS
From 17-MAY-18 16:20:00 to 17-MAY-18 16:20:00 (CST-6)
Location: DUMAS MUNI ARPT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in HUTCHINSON, TEXAS
From 17-MAY-18 16:25:00 to 17-MAY-18 16:25:00 (CST-6)
Location: FRITCH
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUTCHINSON, TEXAS
From 17-MAY-18 16:34:00 to 17-MAY-18 16:34:00 (CST-6)
Location: FRITCH
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in HUTCHINSON, TEXAS
From 17-MAY-18 16:57:00 to 17-MAY-18 16:57:00 (CST-6)
Location: FRITCH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUTCHINSON, TEXAS
From 17-MAY-18 18:04:00 to 17-MAY-18 18:04:00 (CST-6)
Location: FRITCH
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUTCHINSON, TEXAS
From 17-MAY-18 18:34:00 to 17-MAY-18 18:34:00 (CST-6)
Location: SANFORD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUTCHINSON, TEXAS
From 17-MAY-18 18:46:00 to 17-MAY-18 18:46:00 (CST-6)
Location: HUTCHINSON CO ARPT
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hen egg size hail covering the ground, late report received via Facebook.

Hail in HUTCHINSON, TEXAS
From 17-MAY-18 18:55:00 to 17-MAY-18 18:55:00 (CST-6)
Location: BORGER
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in HUTCHINSON, TEXAS
From 17-MAY-18 19:05:00 to 17-MAY-18 19:05:00 (CST-6)
Location: HUTCHINSON CO ARPT
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media