A semi stationary warm front across part of far Southwest Nebraska into Northwest Kansas served as the trigger for thunderstorm development during the afternoon and evening hours.  Storms developed and moved north of the front producing tornadoes, hail up to tennis ball size, and a report of thunderstorm wind damage in McCook.  The largest hail reported was north of Max.  Two tornadoes formed north of the Benkelman and Max area, one causing damage.  The report of thunderstorm wind damage was one inch diameter tree limbs and some shingles being blown down near McCook.

Hail in HITCHCOCK, NEBRASKA
From 26-MAY-21 19:17:00 to 26-MAY-21 19:17:00 (CST-6)
Location: BEVERLY
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail ranged from golf ball to baseball in size.

Hail in HITCHCOCK, NEBRASKA
From 26-MAY-21 19:22:00 to 26-MAY-21 19:22:00 (CST-6)
Location: BEVERLY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail occurred with wind gusts of atleast 60 MPH.

Hail in RED WILLOW, NEBRASKA
From 26-MAY-21 20:00:00 to 26-MAY-21 20:00:00 (CST-6)
Location: MC COOK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Reported via MPing.

Tornado in DUNDY, NEBRASKA
From 26-MAY-21 14:20:00 to 26-MAY-21 14:22:00 (MST-7)
Location: BENKELMAN
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Trusted newspaper writer and trained spotter reported brief tornado touchdown north of Benkelman. Locations confirmed by radar imagery. No damage reported and tornado did not last long before the EF-0 began 3 minutes later. There was a distinct break in the track between this one and the following EF-0.

Tornado in DUNDY, NEBRASKA
From 26-MAY-21 15:01:00 to 26-MAY-21 15:21:00 (MST-7)
Location: MAX
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement and off-duty NWS employees reported another new, large tornado formed in extreme eastern Dundy County. This tornado continued for around 20 minutes until it roped out in the far northeastern part of the county.

Hail in HITCHCOCK, NEBRASKA
From 26-MAY-21 17:26:00 to 26-MAY-21 17:26:00 (CST-6)
Location: CULBERTSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail ranged from pea to dime in size.

Hail in DUNDY, NEBRASKA
From 26-MAY-21 15:08:00 to 26-MAY-21 15:18:00 (MST-7)
Location: MAX
Magnitude: 2.50 
Reported by: Public

The hail ranged from golf ball to tennis ball in size.

Hail in RED WILLOW, NEBRASKA
From 26-MAY-21 17:00:00 to 26-MAY-21 17:00:00 (CST-6)
Location: MARION
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail stones were atleast this large.

Hail in RED WILLOW, NEBRASKA
From 26-MAY-21 17:34:00 to 26-MAY-21 17:34:00 (CST-6)
Location: MARLON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The hail ranged from penny to dime in size.

Thunderstorm Wind in HITCHCOCK, NEBRASKA
From 26-MAY-21 19:22:00 to 26-MAY-21 19:22:00 (CST-6)
Location: BEVERLY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The wind gusts were atleast 60 MPH.  Quarter size hail also occurred.

Tornado in DUNDY, NEBRASKA
From 26-MAY-21 14:39:00 to 26-MAY-21 14:59:00 (MST-7)
Location: MAX
Tornado F-scale: EF2
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-2 tornado occurred shortly after the brief EF-0 north of Benkelman. Damage consisted of many broken power poles, a large grove of Elm Trees that were demolished, additional trees that were snapped or uprooted, damage to a residence including loss of shingles, loss of metal roofing panels to a farm outbuilding, a tractor was moved 100 yards, and damage to antique vehicles due to falling tree debris. The tornado moved along Highway 61 for most of its life, snapping more power poles and twisting signs. The tornado seemed to stray slightly west of the highway and continued according to spotter and chaser reports. The tornado eventually ended over open fields.

Tornado in HITCHCOCK, NEBRASKA
From 26-MAY-21 16:23:00 to 26-MAY-21 16:28:00 (CST-6)
Location: PALISADE RICH ARPT
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Brief tornado reported. Spotter was located in extreme southern Chase County, Nebraska, looking south.

Tornado in DUNDY, NEBRASKA
From 26-MAY-21 14:25:00 to 26-MAY-21 14:27:00 (MST-7)
Location: BENKELMAN
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A brief tornado occurred 5 miles north of Benkelman. Damage consisted of some metal roofing panels, a shed was thrown 200 yards, and fencing was damaged. The tornado crossed Highway 61 and ended on the west side of the highway. There was a distinct break in the tracks between this tornado and the EF-2 that began a few minutes later.

Tornado in DUNDY, NEBRASKA
From 26-MAY-21 14:49:00 to 26-MAY-21 14:52:00 (MST-7)
Location: MAX
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Brief tornado reported by off-duty NWS employees. Occurred around the same time as the Dundy County EF-2 tornado.

Hail in DUNDY, NEBRASKA
From 26-MAY-21 14:20:00 to 26-MAY-21 14:20:00 (MST-7)
Location: BENKELMAN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RED WILLOW, NEBRASKA
From 26-MAY-21 18:07:00 to 26-MAY-21 18:07:00 (CST-6)
Location: MC COOK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail ranged from pea to penny in size.

Thunderstorm Wind in RED WILLOW, NEBRASKA
From 26-MAY-21 20:30:00 to 26-MAY-21 20:30:00 (CST-6)
Location: MC COOK
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Public

One inch diameter tree limbs blown down and some shingles blown off.  Reported via MPing.