A persistent upper level low pressure system, which has been present across the western U.S. for much of the month of May, again has been the trigger for another round of severe weather across the area to end the month.

Thunderstorm Wind in DEUEL, NEBRASKA
From 27-MAY-18 17:31:00 to 27-MAY-18 17:31:00 (MST-7)
Location: CHAPPELL
Magnitude: 56.00 MG
Reported by: Mesonet

No damage reported.

Thunderstorm Wind in PERKINS, NEBRASKA
From 27-MAY-18 14:30:00 to 27-MAY-18 14:30:00 (MST-7)
Location: BRANDON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several irrigation pivots overturned one half mile north of the intersection of roads 324 and 751 on the east side of the road.

Flash Flood in HAYES, NEBRASKA
From 28-MAY-18 08:50:00 to 28-MAY-18 08:50:00 (CST-6)
Location: HAYES CENTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Red Willow Creek is out of it's banks. Several roads in area are under water.

Hail in CHASE, NEBRASKA
From 27-MAY-18 14:15:00 to 27-MAY-18 14:15:00 (MST-7)
Location: LAMAR
Magnitude: 1.00 
Reported by: Public

Hail in PERKINS, NEBRASKA
From 27-MAY-18 14:35:00 to 27-MAY-18 14:35:00 (MST-7)
Location: VENANGO
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in KEITH, NEBRASKA
From 27-MAY-18 14:48:00 to 27-MAY-18 14:48:00 (MST-7)
Location: BRULE
Magnitude: 1.50 
Reported by: Public

Hail in KEITH, NEBRASKA
From 27-MAY-18 14:48:00 to 27-MAY-18 14:48:00 (MST-7)
Location: BRULE
Magnitude: 1.00 
Reported by: Public

Hail in PERKINS, NEBRASKA
From 27-MAY-18 14:55:00 to 27-MAY-18 14:55:00 (MST-7)
Location: GRANT
Magnitude: 1.25 
Reported by: Trained Spotter

Hail in KEITH, NEBRASKA
From 27-MAY-18 15:00:00 to 27-MAY-18 15:00:00 (MST-7)
Location: BRULE
Magnitude: 1.00 
Reported by: Public

Hail in PERKINS, NEBRASKA
From 27-MAY-18 15:01:00 to 27-MAY-18 15:01:00 (MST-7)
Location: GRANT
Magnitude: 1.50 
Reported by: Storm Chaser

Hail in KEITH, NEBRASKA
From 27-MAY-18 15:15:00 to 27-MAY-18 15:15:00 (MST-7)
Location: OGALLALA
Magnitude: 1.50 
Reported by: Storm Chaser

Hail in PERKINS, NEBRASKA
From 27-MAY-18 15:18:00 to 27-MAY-18 15:18:00 (MST-7)
Location: GRANT
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in PERKINS, NEBRASKA
From 27-MAY-18 15:30:00 to 27-MAY-18 15:30:00 (MST-7)
Location: GRANT
Magnitude: 1.00 
Reported by: Public

Hail in PERKINS, NEBRASKA
From 27-MAY-18 15:46:00 to 27-MAY-18 15:46:00 (MST-7)
Location: MADRID
Magnitude: 1.50 
Reported by: Public

Hail in KEITH, NEBRASKA
From 29-MAY-18 14:35:00 to 29-MAY-18 14:35:00 (MST-7)
Location: OGALLALA
Magnitude: 1.00 
Reported by: Public

Hail in KEITH, NEBRASKA
From 29-MAY-18 15:05:00 to 29-MAY-18 15:05:00 (MST-7)
Location: OGALLALA ARPT
Magnitude: 1.00 
Reported by: Public

Thunderstorm Wind in PERKINS, NEBRASKA
From 27-MAY-18 15:45:00 to 27-MAY-18 15:45:00 (MST-7)
Location: MADRID
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several pivots overturned 6 to 10 miles southeast of Madrid.

Thunderstorm Wind in HAYES, NEBRASKA
From 27-MAY-18 18:53:00 to 27-MAY-18 18:53:00 (CST-6)
Location: HAMLET
Magnitude: 61.00 EG
Reported by: Emergency Manager

Several utility power poles blown down.

Thunderstorm Wind in GARDEN, NEBRASKA
From 27-MAY-18 18:00:00 to 27-MAY-18 18:00:00 (MST-7)
Location: OSHKOSH
Magnitude: 61.00 EG
Reported by: COOP Observer

Trees up to two and one half feet in diameter down in Oshkosh. Power outages also reported.

Thunderstorm Wind in HAYES, NEBRASKA
From 27-MAY-18 19:03:00 to 27-MAY-18 19:03:00 (CST-6)
Location: HAYES CENTER
Magnitude: 61.00 EG
Reported by: Emergency Manager

Center pivots damaged.

Thunderstorm Wind in GARDEN, NEBRASKA
From 27-MAY-18 17:47:00 to 27-MAY-18 17:47:00 (MST-7)
Location: OSHKOSH
Magnitude: 52.00 EG
Reported by: Trained Spotter

No damage reported.

Thunderstorm Wind in CHASE, NEBRASKA
From 27-MAY-18 17:55:00 to 27-MAY-18 17:55:00 (MST-7)
Location: IMPERIAL
Magnitude: 56.00 MG
Reported by: ASOS

No damage reported.

Thunderstorm Wind in GARDEN, NEBRASKA
From 27-MAY-18 18:15:00 to 27-MAY-18 18:15:00 (MST-7)
Location: LISCO
Magnitude: 56.00 EG
Reported by: Public

No damage reported.

Thunderstorm Wind in KEITH, NEBRASKA
From 27-MAY-18 18:30:00 to 27-MAY-18 18:30:00 (MST-7)
Location: SARBEN
Magnitude: 52.00 EG
Reported by: Public

Elm tree uprooted.

Thunderstorm Wind in KEITH, NEBRASKA
From 27-MAY-18 18:32:00 to 27-MAY-18 18:32:00 (MST-7)
Location: ROSCOE
Magnitude: 68.00 MG
Reported by: Storm Chaser

No damage reported.

Thunderstorm Wind in LINCOLN, NEBRASKA
From 27-MAY-18 19:50:00 to 27-MAY-18 19:50:00 (CST-6)
Location: HERSHEY
Magnitude: 65.00 EG
Reported by: COOP Observer

Six to eight inch diameter tree branches down.

Thunderstorm Wind in MCPHERSON, NEBRASKA
From 27-MAY-18 20:10:00 to 27-MAY-18 20:10:00 (CST-6)
Location: TRYON
Magnitude: 52.00 EG
Reported by: Public

No damage reported.

Thunderstorm Wind in MCPHERSON, NEBRASKA
From 27-MAY-18 20:20:00 to 27-MAY-18 20:20:00 (CST-6)
Location: TRYON
Magnitude: 52.00 EG
Reported by: Public

No damage reported.

Thunderstorm Wind in CHASE, NEBRASKA
From 28-MAY-18 18:50:00 to 28-MAY-18 18:50:00 (MST-7)
Location: CHAMPION
Magnitude: 52.00 EG
Reported by: Public

No damage reported.

Tornado in WHEELER, NEBRASKA
From 25-MAY-18 16:30:00 to 25-MAY-18 16:45:00 (CST-6)
Location: BARTLETT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A land spout tornado verified by photos.