During the mid afternoon through mid evening thunderstorms developed over Northwest Kansas east of a dry line located near the Kansas Colorado border.  A warm front was located just north of the Kansas Nebraska line near Benkelman that dipped southeast toward Hill City.  The tornado threat was confined the near the warm front.  Hail up to golf ball size was reported at a number of locations.  The only report of thunderstorm wind damage was reported south of Hill City where a house lost a quarter to half of its shingles.

Hail in NORTON, KANSAS
From 26-MAY-21 19:21:00 to 26-MAY-21 19:21:00 (CST-6)
Location: DELLVALE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail ranged from ping-pong ball to golf ball in size.

Thunderstorm Wind in GRAHAM, KANSAS
From 26-MAY-21 19:53:00 to 26-MAY-21 19:53:00 (CST-6)
Location: PENOKEE
Magnitude: 70.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

A quarter to half the shingles were peeled off the roof by the wind.

High Wind in GRAHAM, KANSAS
From 26-MAY-21 20:10:00 to 26-MAY-21 20:10:00 (CST-6)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Wind gusts up to 60 MPH reported at 7 S of Hill City.  These winds were coming from the south despite no thunderstorm activity.

Hail in RAWLINS, KANSAS
From 26-MAY-21 18:12:00 to 26-MAY-21 18:12:00 (CST-6)
Location: ACHILLES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in DECATUR, KANSAS
From 26-MAY-21 18:41:00 to 26-MAY-21 18:41:00 (CST-6)
Location: ALLISON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RAWLINS, KANSAS
From 26-MAY-21 18:57:00 to 26-MAY-21 18:57:00 (CST-6)
Location: ACHILLES
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RAWLINS, KANSAS
From 26-MAY-21 18:55:00 to 26-MAY-21 18:55:00 (CST-6)
Location: HERNDON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in RAWLINS, KANSAS
From 26-MAY-21 18:58:00 to 26-MAY-21 18:58:00 (CST-6)
Location: HERNDON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WICHITA, KANSAS
From 26-MAY-21 15:44:00 to 26-MAY-21 15:49:00 (CST-6)
Location: ST THERESA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The report was sent from MPing.  The hail ranged from nickel to half dollar size.

Hail in WICHITA, KANSAS
From 26-MAY-21 15:43:00 to 26-MAY-21 15:43:00 (CST-6)
Location: ST THERESA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in LOGAN, KANSAS
From 26-MAY-21 16:31:00 to 26-MAY-21 16:31:00 (CST-6)
Location: PAGE CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LOGAN, KANSAS
From 26-MAY-21 16:33:00 to 26-MAY-21 16:33:00 (CST-6)
Location: WINONA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in RAWLINS, KANSAS
From 26-MAY-21 16:19:00 to 26-MAY-21 16:23:00 (CST-6)
Location: LUDELL
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Trained spotters and off-duty NWS employees report large tornado northeast of Ludell, KS over open portions of Rawlins County. Spotter pictures show distinct tornado southwest of the location that was eventually hit by a separate EF-1 tornado northwest of Herdon.

Tornado in RAWLINS, KANSAS
From 26-MAY-21 16:45:00 to 26-MAY-21 16:51:00 (CST-6)
Location: HERNDON
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado reported by trained spotter in far northeast Rawlins County. Radar used to pinpoint locations since NWS damage survey in area didn't find a distinct track.

Tornado in DECATUR, KANSAS
From 26-MAY-21 17:41:00 to 26-MAY-21 17:43:00 (CST-6)
Location: CEDAR BLUFFS
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter report of brief tornado. Funnel clouds remain seen in the area with rapid storm rotation.

Hail in RAWLINS, KANSAS
From 26-MAY-21 18:52:00 to 26-MAY-21 18:52:00 (CST-6)
Location: ACHILLES
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DECATUR, KANSAS
From 26-MAY-21 18:39:00 to 26-MAY-21 18:39:00 (CST-6)
Location: ALLISON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RAWLINS, KANSAS
From 26-MAY-21 19:06:00 to 26-MAY-21 19:06:00 (CST-6)
Location: HERNDON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DECATUR, KANSAS
From 26-MAY-21 19:05:00 to 26-MAY-21 19:05:00 (CST-6)
Location: TRAER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in NORTON, KANSAS
From 26-MAY-21 19:25:00 to 26-MAY-21 19:25:00 (CST-6)
Location: NEW ALMELO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in RAWLINS, KANSAS
From 26-MAY-21 16:40:00 to 26-MAY-21 16:40:00 (CST-6)
Location: HERNDON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in THOMAS, KANSAS
From 26-MAY-21 17:08:00 to 26-MAY-21 17:08:00 (CST-6)
Location: MINGO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report was sent via MPing.

Hail in DECATUR, KANSAS
From 26-MAY-21 17:12:00 to 26-MAY-21 17:12:00 (CST-6)
Location: TRAER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The hail ranged from penny to quarter in some with occasional golf balls.

Hail in SHERIDAN, KANSAS
From 26-MAY-21 17:58:00 to 26-MAY-21 18:30:00 (CST-6)
Location: HOXIE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter to golf ball size hail was reported.

Hail in RAWLINS, KANSAS
From 26-MAY-21 18:26:00 to 26-MAY-21 18:26:00 (CST-6)
Location: ATWOOD
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in DECATUR, KANSAS
From 26-MAY-21 19:12:00 to 26-MAY-21 19:12:00 (CST-6)
Location: TRAER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The largest hailstone was just over an inch in diameter.

Hail in NORTON, KANSAS
From 26-MAY-21 19:30:00 to 26-MAY-21 19:30:00 (CST-6)
Location: NORTON MUNI ARPT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in NORTON, KANSAS
From 26-MAY-21 19:36:00 to 26-MAY-21 19:41:00 (CST-6)
Location: NORTON MUNI ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail ranged from golf ball to quarter in size.

Hail in NORTON, KANSAS
From 26-MAY-21 19:32:00 to 26-MAY-21 19:32:00 (CST-6)
Location: NORTON MUNI ARPT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The hail was mainly nickel to quarter in size with a few ping-pong ball size hailstones mixed in.

Hail in GRAHAM, KANSAS
From 26-MAY-21 20:38:00 to 26-MAY-21 20:38:00 (CST-6)
Location: HILL CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in GRAHAM, KANSAS
From 26-MAY-21 20:56:00 to 26-MAY-21 20:56:00 (CST-6)
Location: BOGUE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RAWLINS, KANSAS
From 26-MAY-21 18:57:00 to 26-MAY-21 18:57:00 (CST-6)
Location: HERNDON
Magnitude: 2.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

The hailstone measured 2.25 inches in diameter.

Tornado in RAWLINS, KANSAS
From 26-MAY-21 16:29:00 to 26-MAY-21 16:45:00 (CST-6)
Location: HERNDON
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado hit a farmstead northwest of Herndon. At the farmstead, damage consisted of numerous snapped and uprooted trees, several farm structures damaged including torn off metal roofing, broken windows, and even a few metal support beams bent in. Several grain silos were damaged or removed from their foundation. Windows were broken in vehicles. A house suffered damage to shingles, a few broken windows, and a tree falling onto it. The tornado then proceeded north on County Road 27, snapping power lines and damaging a refurbished farmstead schoolhouse. As the tornado moved north, it also damaged some oil storage tanks, spreading the oil to the northeast in a field as it turned. The tornado crossed the field, and a damage path was observed on County Road 29. From there, there was no observable damage so it was determined the tornado ended at this location.