A supercell thunderstorm tracked across Rice county on Sunday, August 15th producing extremely strong straight-line winds and hail up to the size of baseballs. Strong winds blew over railroad cars and snapped power poles. Winds were estimated to be near 110 mph at the peak of the storm.

Hail in ELLSWORTH, KANSAS
From 15-AUG-21 16:25:00 to 15-AUG-21 16:26:00 (CST-6)
Location: KANOPOLIS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ELLSWORTH, KANSAS
From 15-AUG-21 16:30:00 to 15-AUG-21 16:31:00 (CST-6)
Location: KANOPOLIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ELLSWORTH, KANSAS
From 15-AUG-21 16:36:00 to 15-AUG-21 16:37:00 (CST-6)
Location: KANOPOLIS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ELLSWORTH, KANSAS
From 15-AUG-21 16:37:00 to 15-AUG-21 16:38:00 (CST-6)
Location: KANOPOLIS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in RICE, KANSAS
From 15-AUG-21 17:03:00 to 15-AUG-21 17:04:00 (CST-6)
Location: GENESEO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RICE, KANSAS
From 15-AUG-21 17:05:00 to 15-AUG-21 17:06:00 (CST-6)
Location: GENESEO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winds up to 65 mph were also reported.

Hail in RICE, KANSAS
From 15-AUG-21 17:08:00 to 15-AUG-21 17:09:00 (CST-6)
Location: GENESEO
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RICE, KANSAS
From 15-AUG-21 17:10:00 to 15-AUG-21 17:11:00 (CST-6)
Location: GENESEO
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous car windshields were noted.

Hail in RICE, KANSAS
From 15-AUG-21 18:01:00 to 15-AUG-21 18:02:00 (CST-6)
Location: STERLING
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in RICE, KANSAS
From 15-AUG-21 17:42:00 to 15-AUG-21 17:43:00 (CST-6)
Location: LYONS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in ELLSWORTH, KANSAS
From 15-AUG-21 16:58:00 to 15-AUG-21 17:00:00 (CST-6)
Location: LORRAINE
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is the beginning of an intense straight line wind event that moved out of Ellsworth county into Rice county.  The narrow band of wind moved over open county and knocked over power lines for approximately one half mile.

Thunderstorm Wind in RICE, KANSAS
From 15-AUG-21 17:00:00 to 15-AUG-21 17:46:00 (CST-6)
Location: GENESEO
Magnitude: 96.00 EG
Reported by: NWS Storm Survey

A two to three wide swath of intense severe thunderstorm winds up to 110 mph moved out of Ellsworth county and across Rice county.  Leaving significant damage along the way.  Power poles up to and over one mile in width were knocked down or broken in half at multiple locations.  Approximately one half mile of rail cars were blown off of the track just to the west of Geneseo. Crops along the path were flattened and tree branches were blown out of several trees along with some trees being completely blown over.  A measured wind gust of 77 mph was recorded near the end of the wind damage path at the Lyons county airport.