A dryline set up across the western combined Panhandles provided a relatively sharp moisture axis with warm, unstable airmass across the central and eastern Panhandles with good low level moisture. With SBCAPE of 2000-3000 J/Kg, 30-40 kts of effective shear and high LCL's, supercell potential with damaging winds and large hail would be the main threat with a low tornado threat given the high LCL's and weak low level helicity values. Storms developed across the TX Panhandle and with southerly flow moved north and east throughout the afternoon into the evening hours before waning after the loss of diurnal heating. Large hail up to the size of baseballs were reported along with damaging wind reports.

Hail in MOORE, TEXAS
From 15-MAY-17 17:00:00 to 15-MAY-17 17:00:00 (CST-6)
Location: DUMAS MUNI ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MOORE, TEXAS
From 15-MAY-17 17:04:00 to 15-MAY-17 17:04:00 (CST-6)
Location: SUNRAY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Dime size hail also reported.

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 17:15:00 to 15-MAY-17 17:15:00 (CST-6)
Location: FRITCH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Nickel to quarter size hail falling in Fritch.

Hail in MOORE, TEXAS
From 15-MAY-17 17:20:00 to 15-MAY-17 17:20:00 (CST-6)
Location: DUMAS MUNI ARPT
Magnitude: 0.90 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in POTTER, TEXAS
From 15-MAY-17 17:20:00 to 15-MAY-17 17:20:00 (CST-6)
Location: VALLE DE ORO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 17:22:00 to 15-MAY-17 17:22:00 (CST-6)
Location: FRITCH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 17:25:00 to 15-MAY-17 17:25:00 (CST-6)
Location: SANFORD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 17:28:00 to 15-MAY-17 17:28:00 (CST-6)
Location: SANFORD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CARSON, TEXAS
From 15-MAY-17 17:35:00 to 15-MAY-17 17:35:00 (CST-6)
Location: PANHANDLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in MOORE, TEXAS
From 15-MAY-17 17:40:00 to 15-MAY-17 17:40:00 (CST-6)
Location: MASTERSON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in MOORE, TEXAS
From 15-MAY-17 17:40:00 to 15-MAY-17 17:40:00 (CST-6)
Location: FOUR WAY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in CARSON, TEXAS
From 15-MAY-17 17:44:00 to 15-MAY-17 17:44:00 (CST-6)
Location: CONWAY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in MOORE, TEXAS
From 15-MAY-17 17:45:00 to 15-MAY-17 17:45:00 (CST-6)
Location: FOUR WAY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in MOORE, TEXAS
From 15-MAY-17 17:48:00 to 15-MAY-17 17:48:00 (CST-6)
Location: FOUR WAY
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail still falling at time of the report. Half Dollar size hail reported east of Four Way.

Hail in MOORE, TEXAS
From 15-MAY-17 17:49:00 to 15-MAY-17 17:49:00 (CST-6)
Location: ETTER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in MOORE, TEXAS
From 15-MAY-17 17:51:00 to 15-MAY-17 17:51:00 (CST-6)
Location: FOUR WAY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in MOORE, TEXAS
From 15-MAY-17 17:52:00 to 15-MAY-17 17:52:00 (CST-6)
Location: FOUR WAY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MOORE, TEXAS
From 15-MAY-17 17:56:00 to 15-MAY-17 17:56:00 (CST-6)
Location: FOUR WAY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MOORE, TEXAS
From 15-MAY-17 18:08:00 to 15-MAY-17 18:08:00 (CST-6)
Location: LAKE MEREDITH
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MOORE, TEXAS
From 15-MAY-17 18:18:00 to 15-MAY-17 18:18:00 (CST-6)
Location: LAKE MEREDITH
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 18:24:00 to 15-MAY-17 18:24:00 (CST-6)
Location: STINNETT
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in SHERMAN, TEXAS
From 15-MAY-17 18:31:00 to 15-MAY-17 18:31:00 (CST-6)
Location: STRATFORD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 18:31:00 to 15-MAY-17 18:31:00 (CST-6)
Location: STINNETT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 18:37:00 to 15-MAY-17 18:37:00 (CST-6)
Location: STINNETT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 18:39:00 to 15-MAY-17 18:39:00 (CST-6)
Location: STINNETT
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 18:40:00 to 15-MAY-17 18:40:00 (CST-6)
Location: STINNETT
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tennis ball size hail reported with accumulating hail of at least golf ball size.

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 18:40:00 to 15-MAY-17 18:40:00 (CST-6)
Location: STINNETT
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHERMAN, TEXAS
From 15-MAY-17 18:45:00 to 15-MAY-17 18:45:00 (CST-6)
Location: TEXHOMA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 18:50:00 to 15-MAY-17 18:50:00 (CST-6)
Location: PRINGLE
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in HANSFORD, TEXAS
From 15-MAY-17 19:01:00 to 15-MAY-17 19:01:00 (CST-6)
Location: MORSE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in HUTCHINSON, TEXAS
From 15-MAY-17 19:05:00 to 15-MAY-17 19:05:00 (CST-6)
Location: STINNETT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Thunderstorm Wind in HUTCHINSON, TEXAS
From 15-MAY-17 19:22:00 to 15-MAY-17 19:22:00 (CST-6)
Location: PRINGLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winds estimated at 60 MPH.

Thunderstorm Wind in HUTCHINSON, TEXAS
From 15-MAY-17 19:40:00 to 15-MAY-17 19:40:00 (CST-6)
Location: PRINGLE
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Thunderstorm Wind in HANSFORD, TEXAS
From 15-MAY-17 20:09:00 to 15-MAY-17 20:09:00 (CST-6)
Location: SPEARMAN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Measured gust of 60 MPH.

Hail in HANSFORD, TEXAS
From 15-MAY-17 20:10:00 to 15-MAY-17 20:10:00 (CST-6)
Location: SPEARMAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in OCHILTREE, TEXAS
From 15-MAY-17 20:48:00 to 15-MAY-17 20:48:00 (CST-6)
Location: FARNSWORTH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Pea and nickel size hail coating roadway on Route 15.

Hail in OCHILTREE, TEXAS
From 15-MAY-17 20:54:00 to 15-MAY-17 20:54:00 (CST-6)
Location: PERRYTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in OCHILTREE, TEXAS
From 15-MAY-17 20:55:00 to 15-MAY-17 20:55:00 (CST-6)
Location: PERRYTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in OCHILTREE, TEXAS
From 15-MAY-17 20:59:00 to 15-MAY-17 20:59:00 (CST-6)
Location: PERRYTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser