A stalled out frontal boundary draped from southern Nebraska into northeastern Colorado served as the focal point for thunderstorms. Thunderstorms initiated over northeastern Colorado and became severe as they tracked east into southwestern Nebraska. Large hail and a tornado were reported with these severe storms. Urban and small stream flooding impacted local communities as storm drains were overwhelmed.

Flash Flood in KEITH, NEBRASKA
From 27-MAY-19 20:00:00 to 27-MAY-19 21:00:00 (MST-7)
Location: ROSCOE
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

East H county road washed out northeast of Roscoe.

Hail in KEITH, NEBRASKA
From 27-MAY-19 18:26:00 to 27-MAY-19 18:26:00 (MST-7)
Location: SARBEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINCOLN, NEBRASKA
From 27-MAY-19 19:37:00 to 27-MAY-19 19:37:00 (CST-6)
Location: SUTHERLAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail covering the ground.

Hail in LINCOLN, NEBRASKA
From 27-MAY-19 19:45:00 to 27-MAY-19 19:45:00 (CST-6)
Location: SUTHERLAND
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Baseball to golf ball sized hail reported at this location.

Hail in LINCOLN, NEBRASKA
From 27-MAY-19 20:29:00 to 27-MAY-19 20:29:00 (CST-6)
Location: WALLACE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHASE, NEBRASKA
From 27-MAY-19 19:35:00 to 27-MAY-19 19:35:00 (MST-7)
Location: CHAMPION
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in KEITH, NEBRASKA
From 27-MAY-19 16:55:00 to 27-MAY-19 16:55:00 (MST-7)
Location: BRULE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in KEITH, NEBRASKA
From 27-MAY-19 17:02:00 to 27-MAY-19 17:02:00 (MST-7)
Location: BRULE
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tennis to golf ball sized hail reported at this location.

Hail in CHASE, NEBRASKA
From 27-MAY-19 19:55:00 to 27-MAY-19 19:55:00 (MST-7)
Location: ENDERS
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DEUEL, NEBRASKA
From 27-MAY-19 16:37:00 to 27-MAY-19 16:37:00 (MST-7)
Location: BIG SPGS
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in DEUEL, NEBRASKA
From 27-MAY-19 16:16:00 to 27-MAY-19 16:16:00 (MST-7)
Location: BIG SPGS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel sized hail fell along with thunderstorm wind gusts estimated at 60 MPH.

Hail in DEUEL, NEBRASKA
From 27-MAY-19 16:55:00 to 27-MAY-19 16:55:00 (MST-7)
Location: BIG SPGS
Magnitude: 1.75 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous vehicle windows were reported broken out by golf ball sized hail from the junction of I76/I80 to south of Big Springs.  Heavy damage to semi tractor windows reported at a truck stop at exit 107 on Interstate 80.

Hail in KEITH, NEBRASKA
From 27-MAY-19 17:55:00 to 27-MAY-19 17:55:00 (MST-7)
Location: ROSCOE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail covering the ground at this location.

Hail in CHASE, NEBRASKA
From 27-MAY-19 17:38:00 to 27-MAY-19 17:38:00 (MST-7)
Location: LAMAR
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHASE, NEBRASKA
From 27-MAY-19 17:49:00 to 27-MAY-19 17:49:00 (MST-7)
Location: LAMAR
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail covering the road at this location.

Hail in CHASE, NEBRASKA
From 27-MAY-19 18:04:00 to 27-MAY-19 18:04:00 (MST-7)
Location: LAMAR
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CHASE, NEBRASKA
From 27-MAY-19 18:35:00 to 27-MAY-19 18:35:00 (MST-7)
Location: IMPERIAL
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: NWS Employee

Power pole snapped. Winds estimated at 70 MPH.

Thunderstorm Wind in CHASE, NEBRASKA
From 27-MAY-19 18:25:00 to 27-MAY-19 18:25:00 (MST-7)
Location: IMPERIAL
Magnitude: 77.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Wind speed measured with a portable weather station.

Hail in KEITH, NEBRASKA
From 27-MAY-19 17:13:00 to 27-MAY-19 17:13:00 (MST-7)
Location: OGALLALA ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail covering the ground.

Hail in KEITH, NEBRASKA
From 27-MAY-19 17:45:00 to 27-MAY-19 17:45:00 (MST-7)
Location: ROSCOE
Magnitude: 1.75 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Had one window broken by hail at this location.

Hail in KEITH, NEBRASKA
From 27-MAY-19 17:15:00 to 27-MAY-19 17:15:00 (MST-7)
Location: OGALLALA ARPT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail accumulated to a depth of two inches.

Hail in KEITH, NEBRASKA
From 27-MAY-19 17:25:00 to 27-MAY-19 17:25:00 (MST-7)
Location: OGALLALA ARPT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in KEITH, NEBRASKA
From 27-MAY-19 17:30:00 to 27-MAY-19 17:30:00 (MST-7)
Location: OGALLALA
Magnitude: 2.00 
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple reports of 2 inch diameter hail reported in Ogallala with numerous reports of damaged windows and car windows.

Hail in KEITH, NEBRASKA
From 27-MAY-19 16:50:00 to 27-MAY-19 16:50:00 (MST-7)
Location: BRULE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHASE, NEBRASKA
From 27-MAY-19 20:05:00 to 27-MAY-19 20:05:00 (MST-7)
Location: ENDERS RES
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LINCOLN, NEBRASKA
From 27-MAY-19 21:05:00 to 27-MAY-19 21:05:00 (CST-6)
Location: WELLFLEET
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINCOLN, NEBRASKA
From 27-MAY-19 20:53:00 to 27-MAY-19 20:53:00 (CST-6)
Location: DICKENS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LINCOLN, NEBRASKA
From 27-MAY-19 21:07:00 to 27-MAY-19 21:07:00 (CST-6)
Location: KEITH
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CUSTER, NEBRASKA
From 27-MAY-19 22:10:00 to 27-MAY-19 22:10:00 (CST-6)
Location: MERNA
Magnitude: 1.00 
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

Hail damaged the roof of a greenhouse.

Hail in LINCOLN, NEBRASKA
From 27-MAY-19 21:40:00 to 27-MAY-19 21:40:00 (CST-6)
Location: BRADY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CUSTER, NEBRASKA
From 27-MAY-19 22:08:00 to 27-MAY-19 22:08:00 (CST-6)
Location: BROKEN BOW
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wind gust of 62 MPH measured at the Broken Bow Airport.

Hail in FRONTIER, NEBRASKA
From 27-MAY-19 22:25:00 to 27-MAY-19 22:25:00 (CST-6)
Location: MAYWOOD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Frontier county sheriff reports 60 MPH wind gusts and golf ball sized hail at this location.

Flash Flood in LINCOLN, NEBRASKA
From 27-MAY-19 21:41:00 to 27-MAY-19 21:41:00 (CST-6)
Location: SUTHERLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Extensive street flooding reported in Sutherland.

Flash Flood in LINCOLN, NEBRASKA
From 27-MAY-19 21:42:00 to 27-MAY-19 21:42:00 (CST-6)
Location: HERSHEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Extensive street flooding is being reported in Hershey. Radar estimated 3 to 4 inches of rain has fallen in Hershey over the past hour.

Hail in CHASE, NEBRASKA
From 27-MAY-19 17:40:00 to 27-MAY-19 17:40:00 (MST-7)
Location: LAMAR
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in KEITH, NEBRASKA
From 27-MAY-19 17:23:00 to 27-MAY-19 17:23:00 (MST-7)
Location: OGALLALA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHASE, NEBRASKA
From 27-MAY-19 18:01:00 to 27-MAY-19 18:01:00 (MST-7)
Location: LAMAR
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in CHASE, NEBRASKA
From 27-MAY-19 18:03:00 to 27-MAY-19 18:03:00 (MST-7)
Location: LAMAR
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Visibility one quarter of a mile.

Hail in LINCOLN, NEBRASKA
From 27-MAY-19 19:43:00 to 27-MAY-19 19:43:00 (CST-6)
Location: SUTHERLAND
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail covering the street at this location.

Hail in LINCOLN, NEBRASKA
From 27-MAY-19 21:10:00 to 27-MAY-19 21:10:00 (CST-6)
Location: WELLFLEET
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in LINCOLN, NEBRASKA
From 27-MAY-19 20:52:00 to 27-MAY-19 21:13:00 (CST-6)
Location: NORTH PLATTE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Rain fell in approximate 25 minutes with street flooding ongoing.

Thunderstorm Wind in CHASE, NEBRASKA
From 27-MAY-19 18:22:00 to 27-MAY-19 18:22:00 (MST-7)
Location: IMPERIAL
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a portable mesonet 4 miles west of Imperial.

Thunderstorm Wind in FRONTIER, NEBRASKA
From 27-MAY-19 22:25:00 to 27-MAY-19 22:25:00 (CST-6)
Location: MAYWOOD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

County sheriff estimated winds at 60 MPH at this location.

Funnel Cloud in HAYES, NEBRASKA
From 27-MAY-19 21:32:00 to 27-MAY-19 21:32:00 (CST-6)
Location: HAYES CENTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Funnel cloud reported 5 miles west of Hayes Center.

Flash Flood in KEITH, NEBRASKA
From 27-MAY-19 21:00:00 to 27-MAY-19 21:00:00 (MST-7)
Location: ROSCOE
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: State Official

County road East H reported washed out near Roscoe. Time and location estimated.

Tornado in CHASE, NEBRASKA
From 27-MAY-19 17:43:00 to 27-MAY-19 17:43:00 (MST-7)
Location: LAMAR
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Rope tornado briefly touched down in an open field with no damage reported.

Tornado in CHASE, NEBRASKA
From 27-MAY-19 18:23:00 to 27-MAY-19 18:35:00 (MST-7)
Location: IMPERIAL
Tornado F-scale: EF1
Property damage: 200.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado touched down 7 miles northwest of Imperial and moved northeast 10 miles before dissipating northeast of Imperial. The tornado was intermittently on the ground, where it overturned or destroyed several center pivot irrigation systems in its path. The tornado was rated an EF1.

Tornado in CHASE, NEBRASKA
From 27-MAY-19 18:37:00 to 27-MAY-19 18:37:00 (MST-7)
Location: IMPERIAL
Tornado F-scale: EF0
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Tornado briefly touched down, overturning a center pivot irrigation system.

Tornado in CHASE, NEBRASKA
From 27-MAY-19 19:05:00 to 27-MAY-19 19:06:00 (MST-7)
Location: (IML)IMPERIAL ARPT
Tornado F-scale: EF0
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Brief touchdown with a center pivot irrigation system overturned.

Hail in DEUEL, NEBRASKA
From 27-MAY-19 16:50:00 to 27-MAY-19 16:50:00 (MST-7)
Location: BIG SPGS
Magnitude: 1.75 
Property damage: 3.00K
Crop damage: 0.00K
Reported by: COOP Observer

Window damage reported at this location from wind driven hail.

Flash Flood in LINCOLN, NEBRASKA
From 27-MAY-19 21:44:00 to 27-MAY-19 21:44:00 (CST-6)
Location: NORTH PLATTE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reports street flooding in North Platte. Numerous stalled cars were noted as well.

Thunderstorm Wind in CUSTER, NEBRASKA
From 27-MAY-19 22:05:00 to 27-MAY-19 22:05:00 (CST-6)
Location: BROKEN BOW
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Gust measured at the Broken Bow Airport.