Severe thunderstorms produced several reports of large hail and damaging winds throughout much of the Nebraska Panhandle.

Hail in KIMBALL, NEBRASKA
From 17-MAY-18 22:45:00 to 17-MAY-18 22:47:00 (MST-7)
Location: KIMBALL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail was observed northeast of Kimball.

Hail in CHEYENNE, NEBRASKA
From 17-MAY-18 19:56:00 to 17-MAY-18 19:58:00 (MST-7)
Location: SIDNEY
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Tennis ball size hail was observed northwest of Sidney.

Hail in CHEYENNE, NEBRASKA
From 17-MAY-18 20:18:00 to 17-MAY-18 20:20:00 (MST-7)
Location: SIDNEY
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tennis ball size hail was observed north of Sidney.

Thunderstorm Wind in CHEYENNE, NEBRASKA
From 17-MAY-18 21:05:00 to 17-MAY-18 21:07:00 (MST-7)
Location: DALTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated wind gusts if 55 to 60 mph were observed at Dalton.

Hail in MORRILL, NEBRASKA
From 17-MAY-18 21:15:00 to 17-MAY-18 21:17:00 (MST-7)
Location: BROADWATER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Dime to quarter size hail was observed five miles west of Lisco.

Thunderstorm Wind in SCOTTS BLUFF, NEBRASKA
From 17-MAY-18 17:00:00 to 17-MAY-18 17:03:00 (MST-7)
Location: GERING
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Estimated wind gusts of 55 to 60 mph were observed west of Gering.

Thunderstorm Wind in CHEYENNE, NEBRASKA
From 17-MAY-18 17:49:00 to 17-MAY-18 17:49:00 (MST-7)
Location: (SNY)SIDNEY ARPT
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The wind sensor at the Sidney Airport measured a peak gust of 66 mph.

Thunderstorm Wind in BOX BUTTE, NEBRASKA
From 17-MAY-18 18:09:00 to 17-MAY-18 18:09:00 (MST-7)
Location: (AIA)ALLIANCE ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The wind sensor at the Alliance Airport measured a peak gust of 58 mph.  Some power outages and uprooted trees were reported at Alliance.

Hail in CHEYENNE, NEBRASKA
From 17-MAY-18 19:36:00 to 17-MAY-18 19:37:00 (MST-7)
Location: SIDNEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail was observed west of Sidney.

Hail in CHEYENNE, NEBRASKA
From 17-MAY-18 19:45:00 to 17-MAY-18 19:46:00 (MST-7)
Location: SIDNEY
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hen egg size hail was observed at the Interstate 80 rest area west of Sidney.

Hail in CHEYENNE, NEBRASKA
From 17-MAY-18 19:49:00 to 17-MAY-18 19:50:00 (MST-7)
Location: SIDNEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Dime to quarter size hail was observed at Sidney.

Hail in CHEYENNE, NEBRASKA
From 17-MAY-18 21:50:00 to 17-MAY-18 21:52:00 (MST-7)
Location: SIDNEY
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Half dollar size hail was observed east of Gurley.

Thunderstorm Wind in CHEYENNE, NEBRASKA
From 17-MAY-18 17:53:00 to 17-MAY-18 17:53:00 (MST-7)
Location: (SNY)SIDNEY ARPT
Magnitude: 57.00 MG
Reported by: ASOS

Hail in DAWES, NEBRASKA
From 17-MAY-18 17:58:00 to 17-MAY-18 17:58:00 (MST-7)
Location: WAYSIDE
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in DAWES, NEBRASKA
From 17-MAY-18 18:26:00 to 17-MAY-18 18:26:00 (MST-7)
Location: CHADRON
Magnitude: 1.00 
Reported by: Law Enforcement

Thunderstorm Wind in BOX BUTTE, NEBRASKA
From 17-MAY-18 18:38:00 to 17-MAY-18 18:38:00 (MST-7)
Location: ALLIANCE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Widespread power outages were reported due to knocked over powerlines in addition to uprooted trees.