Storms initially developed around mid-day in west-central Kansas along an outflow boundary producing heavy rain and up to 60 mph thunderstorm wind gusts in Wichita and Logan counties. Throughout the afternoon, the environment became more favorable for storms as the initial storms expanded north to the Nebraska border with embedded supercell storms. During the afternoon, these storms were able to produce multiple tornadoes, up to golf ball sized hail, and up to 60 mph thunderstorm wind gusts.

Thunderstorm Wind in LOGAN, KANSAS
From 24-MAY-21 16:10:00 to 24-MAY-21 16:10:00 (CST-6)
Location: ELKADER
Magnitude: 52.00 EG
Reported by: Public

A supercell thunderstorm produced estimated wind gusts of 50-60 mph and pea sized hail.

Hail in DECATUR, KANSAS
From 24-MAY-21 16:55:00 to 24-MAY-21 16:55:00 (CST-6)
Location: LEOVILLE
Magnitude: 0.88 
Reported by: Public

A supercell thunderstorm produced dime to nickel sized hail.

Hail in LOGAN, KANSAS
From 24-MAY-21 16:15:00 to 24-MAY-21 16:15:00 (CST-6)
Location: ELKADER
Magnitude: 0.75 
Reported by: Public

A supercell thunderstorm produced up to penny sized hail and heavy rain along US-83.

Hail in DECATUR, KANSAS
From 24-MAY-21 17:05:00 to 24-MAY-21 17:05:00 (CST-6)
Location: LEOVILLE
Magnitude: 1.75 
Reported by: Public

Thunderstorm Wind in GOVE, KANSAS
From 24-MAY-21 20:09:00 to 24-MAY-21 20:09:00 (CST-6)
Location: GOVE
Magnitude: 52.00 MG
Reported by: Mesonet

Mesonet station KKSGRAIN4 measured a 60 mph wind gust associated with a band of heavy rain moving across Gove County.

Flash Flood in WICHITA, KANSAS
From 24-MAY-21 14:00:00 to 24-MAY-21 15:00:00 (CST-6)
Location: ST THERESA
Flood cause: Heavy Rain
Property damage: 0.01K
Crop damage: 0.01K
Reported by: Law Enforcement

Wichita County law enforcement reported water over KS Highway 25 at Hackberry Creek estimated to be at least six inches deep. Law enforcement barricaded the highway along the creek due to the high amount of water over the road.

Thunderstorm Wind in GRAHAM, KANSAS
From 24-MAY-21 21:53:00 to 24-MAY-21 21:53:00 (CST-6)
Location: (HLC)HILL CITY MUNI
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wind gusts occurred behind the thunderstorm activity.

Tornado in LOGAN, KANSAS
From 24-MAY-21 14:09:00 to 24-MAY-21 14:13:00 (CST-6)
Location: SMOKY HILL
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Received report of two tornadoes ongoing simultaneously. From radar imagery, two distinct circulations were evident...one in Wallace County and this one in Logan County.

Tornado in WALLACE, KANSAS
From 24-MAY-21 13:42:00 to 24-MAY-21 13:48:00 (MST-7)
Location: WALLACE
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Caller reported seeing tornado on the ground far north of Sharon Springs. Radar used to confirm exact times and locations.

Tornado in THOMAS, KANSAS
From 24-MAY-21 15:15:00 to 24-MAY-21 15:18:00 (CST-6)
Location: COLBY
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trained spotters, storm chasers, law enforcement, and off-duty NWS meteorologists reported a brief tornado east to northeast of Colby.

Tornado in THOMAS, KANSAS
From 24-MAY-21 15:10:00 to 24-MAY-21 15:13:00 (CST-6)
Location: BROWNVILLE
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Small short-lived tornado reported by trained spotter. Radar used for more accurate location estimate.

Tornado in SHERIDAN, KANSAS
From 24-MAY-21 17:06:00 to 24-MAY-21 17:36:00 (CST-6)
Location: SELDEN
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A large, multi-vortex tornado moved across northwestern Sheridan County, Kansas, impacting the town of Selden. The tornado started west of town initially and moved slowly to the east, eventually crossing Highway 83. As the tornado crossed the highway, it started to impact structures on the west side of Selden, and eventually moving across the town. In town, damage was widespread and quiet concentrated. At one point, the tornado reached a width of one half mile wide. Damage consisted of thousands of broken tree limbs, hundreds of uprooted and snapped trees, shingles off and pieces of roofing removed from residences and buildings, many farm outbuildings either missing roofing material, walls damaged, and/or the building completely collapsed and removed from its foundation, windows broken out of houses, buildings, and vehicles, snapped power poles, overturned irrigation pivots, overturned semis and rail cars, and several grain silos blown over.
The tornado then proceeded to the east, exiting town and heading towards the Highway 83 and Highway 383 split. There were a few more irrigation pivots overturned, as well as power poles snapped. The tornado appeared to dissipate as it neared the Highway 83 and Highway 383 split due to a lack of any visible damage at that intersection.
The challenge with this survey was there were multiple vortices causing damage. Therefore, there were a few areas of more concentrated high-end EF-1 damage with broad/widespread EF-0 to EF-1 damage.
There was one minor injury with this event. The town tornado sirens were not functioning as a result of a power outage. Therefore, fire fighters jumped into their vehicles to drive through town to warn people of the coming tornado. Powerlines fell upon one of the trucks, striking a fire fighter in the back of the neck. Injury was treated on scene.

Tornado in WALLACE, KANSAS
From 24-MAY-21 13:03:00 to 24-MAY-21 13:11:00 (MST-7)
Location: WALLACE
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Disptach relayed a spotter report of a brief tornado. Radar used for precise location. Another tornado (occurring just across the county line in Logan County) happened simultaneously with this tornado towards the end of this tornado's life.

Tornado in THOMAS, KANSAS
From 24-MAY-21 15:44:00 to 24-MAY-21 15:46:00 (CST-6)
Location: GEM
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters and off-duty NWS meteorologists reported brief tornado. Also reported on social media.