A significant severe weather event occurred across the Tri-State Region on the evening of August 11th, 2019. Widespread damaging winds, heavy rainfall, and flash flooding was reported to NWS Goodland. In addition, a few tornadoes occurred along with some large hail. The event began with a couple supercell thunderstorms over Yuma County Colorado and Cheyenne County Kansas. These are the primary storms that produced the large hail and tornadoes. The event evolved with several lines of storms forming, including a large line of storms that moved across Cheyenne, Rawlins, Decatur, Norton, Sherman, Thomas, Sheridan, and Graham counties in northwest Kansas. A second line of storms produced wind damage in Cheyenne County Colorado. These storms later produced heavy rain across Wallace, Logan, and Gove counties in Northwest Kansas.

Tornado in CHEYENNE, KANSAS
From 11-AUG-19 18:47:00 to 11-AUG-19 18:52:00 (CST-6)
Location: WHEELER
Tornado F-scale: EF1
Property damage: 50.00K
Reported by: NWS Storm Survey

A tornado struck a farmstead southeast of Wheeler, KS. This tornado produced damage consisting of trees either uprooted or snapped, and damage to farm machinery from flying debris, being tossed, or the strength of the wind itself. A sturdy farm outbuilding collapsed and several lean-to shelters collapsed. Many fences were blown over. A grain bin was blown more than a tenth of a mile away.

Flash Flood in CHEYENNE, KANSAS
From 11-AUG-19 18:45:00 to 11-AUG-19 18:45:00 (CST-6)
Location: ST FRANCIS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Water was covering the street and sidewalk.

Flash Flood in CHEYENNE, KANSAS
From 11-AUG-19 19:20:00 to 11-AUG-19 19:20:00 (CST-6)
Location: BIRD CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Street flooding was reported in Bird City.

Flash Flood in CHEYENNE, KANSAS
From 11-AUG-19 19:36:00 to 11-AUG-19 19:36:00 (CST-6)
Location: ST FRANCIS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A member of the public reported that the intersection of Road O and Road 15 just east of St. Francis was covered by running water.

Flash Flood in SHERMAN, KANSAS
From 11-AUG-19 19:20:00 to 11-AUG-19 19:20:00 (MST-7)
Location: GOODLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

One foot of running water was reported at the intersection of 6th and Clark in Goodland.

Flash Flood in SHERMAN, KANSAS
From 11-AUG-19 19:45:00 to 11-AUG-19 19:45:00 (MST-7)
Location: GOODLAND ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Running water was reportedly as deep as 6 to 8 inches in spots along Eustis Ave. in Goodland.

Flash Flood in CHEYENNE, KANSAS
From 11-AUG-19 20:50:00 to 11-AUG-19 20:50:00 (CST-6)
Location: WHEELER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Six inches of water flowing over the county road on the north side of Wheeler.

Flash Flood in RAWLINS, KANSAS
From 11-AUG-19 21:00:00 to 11-AUG-19 21:00:00 (CST-6)
Location: ATWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Streets were flooded over in Atwood due to heavy rain.

Flash Flood in SHERMAN, KANSAS
From 11-AUG-19 20:45:00 to 11-AUG-19 20:45:00 (MST-7)
Location: GOODLAND ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Six inches of water was reported over County Road 75.2.

Flash Flood in SHERMAN, KANSAS
From 11-AUG-19 21:00:00 to 11-AUG-19 21:00:00 (MST-7)
Location: GOODLAND ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Water was reportedly running across County Road 77 in northern Sherman County.

Hail in CHEYENNE, KANSAS
From 11-AUG-19 17:30:00 to 11-AUG-19 17:30:00 (CST-6)
Location: ST FRANCIS ARPT
Magnitude: 1.00 
Reported by: Public

Dime to quarter size hail was reported.

Hail in CHEYENNE, KANSAS
From 11-AUG-19 18:35:00 to 11-AUG-19 18:35:00 (CST-6)
Location: ST FRANCIS
Magnitude: 1.50 
Reported by: Public

Hail in CHEYENNE, KANSAS
From 11-AUG-19 18:40:00 to 11-AUG-19 18:40:00 (CST-6)
Location: ST FRANCIS
Magnitude: 2.00 
Reported by: Public

Hail in CHEYENNE, KANSAS
From 11-AUG-19 18:58:00 to 11-AUG-19 18:58:00 (CST-6)
Location: BIRD CITY
Magnitude: 2.50 
Reported by: Trained Spotter

Golf ball to tennis ball size hail was reported.

Hail in CHEYENNE, KANSAS
From 11-AUG-19 19:00:00 to 11-AUG-19 19:00:00 (CST-6)
Location: BIRD CITY
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHEYENNE, KANSAS
From 11-AUG-19 19:00:00 to 11-AUG-19 19:00:00 (CST-6)
Location: BIRD CITY
Magnitude: 1.75 
Reported by: Public

Hail in CHEYENNE, KANSAS
From 11-AUG-19 19:10:00 to 11-AUG-19 19:10:00 (CST-6)
Location: BIRD CITY
Magnitude: 2.50 
Reported by: Public

Hail in CHEYENNE, KANSAS
From 11-AUG-19 19:15:00 to 11-AUG-19 19:15:00 (CST-6)
Location: BIRD CITY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in CHEYENNE, KANSAS
From 11-AUG-19 19:30:00 to 11-AUG-19 19:30:00 (CST-6)
Location: WHEELER
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CHEYENNE, KANSAS
From 11-AUG-19 19:15:00 to 11-AUG-19 19:15:00 (CST-6)
Location: ST FRANCIS ARPT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in SHERMAN, KANSAS
From 11-AUG-19 19:09:00 to 11-AUG-19 19:09:00 (MST-7)
Location: GOODLAND ARPT
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in RAWLINS, KANSAS
From 11-AUG-19 20:20:00 to 11-AUG-19 20:20:00 (CST-6)
Location: BEARDSLEY
Magnitude: 79.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in SHERIDAN, KANSAS
From 11-AUG-19 21:59:00 to 11-AUG-19 21:59:00 (CST-6)
Location: HOXIE
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tornado in RAWLINS, KANSAS
From 11-AUG-19 19:57:00 to 11-AUG-19 19:59:00 (CST-6)
Location: BEARDSLEY
Tornado F-scale: EFU
Reported by: Storm Chaser

A storm chaser reported a brief tornado lasting about 2 minutes approximately half a mile south of US Hwy 36 south of Beardsley, KS.

Thunderstorm Wind in SHERMAN, KANSAS
From 11-AUG-19 19:10:00 to 11-AUG-19 19:10:00 (MST-7)
Location: GOODLAND
Magnitude: 52.00 EG
Reported by: NWS Employee

Off-duty NWS employee estimated 60 mph wind gusts.

Thunderstorm Wind in RAWLINS, KANSAS
From 11-AUG-19 20:20:00 to 11-AUG-19 20:20:00 (CST-6)
Location: ATWOOD
Magnitude: 61.00 EG
Reported by: Storm Chaser

A storm chaser estimated around 70 mph winds about 1 mile northwest of Atwood, KS.

Thunderstorm Wind in THOMAS, KANSAS
From 11-AUG-19 20:34:00 to 11-AUG-19 20:34:00 (CST-6)
Location: COLBY
Magnitude: 52.00 EG
Property damage: 5.00K
Reported by: Public

A member of the public reported thunderstorm wind damage on the west side of Colby in the form of downed power lines.

Hail in CHEYENNE, KANSAS
From 11-AUG-19 18:01:00 to 11-AUG-19 18:01:00 (CST-6)
Location: ST FRANCIS ARPT
Magnitude: 3.00 
Reported by: Public

Thunderstorm Wind in CHEYENNE, KANSAS
From 11-AUG-19 19:30:00 to 11-AUG-19 19:30:00 (CST-6)
Location: WHEELER
Magnitude: 52.00 EG
Property damage: 10.00K
Reported by: Emergency Manager

St. Francis, Bird City, McDonald and Atwood were without power due to thunderstorm wind gusts.

Thunderstorm Wind in RAWLINS, KANSAS
From 11-AUG-19 20:15:00 to 11-AUG-19 20:15:00 (CST-6)
Location: BLAKEMAN
Magnitude: 75.00 EG
Property damage: 2.00K
Reported by: Trained Spotter

A sixteen inch diameter tree was reportedly blown down and a door jam on the outside door of a house was broken from the winds.

Thunderstorm Wind in THOMAS, KANSAS
From 11-AUG-19 20:39:00 to 11-AUG-19 20:39:00 (CST-6)
Location: COLBY
Magnitude: 55.00 MG
Reported by: Public

A member of the public reported a measured wind gust of 63 mph about 1 mile northeast of Colby.

Flash Flood in THOMAS, KANSAS
From 11-AUG-19 21:50:00 to 11-AUG-19 21:50:00 (CST-6)
Location: COLBY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A member of the public reported street flooding in Colby.

Flash Flood in CHEYENNE, KANSAS
From 11-AUG-19 19:20:00 to 11-AUG-19 19:20:00 (CST-6)
Location: BIRD CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A member of the public reported street flooding in Bird City due to heavy rain.

Thunderstorm Wind in RAWLINS, KANSAS
From 11-AUG-19 20:15:00 to 11-AUG-19 20:15:00 (CST-6)
Location: BLAKEMAN
Magnitude: 75.00 EG
Property damage: 2.00K
Reported by: Trained Spotter

Fourteen inch green Cottonwood tree limbs down.

Thunderstorm Wind in RAWLINS, KANSAS
From 11-AUG-19 20:20:00 to 11-AUG-19 20:20:00 (CST-6)
Location: ATWOOD
Magnitude: 65.00 EG
Property damage: 10.00K
Reported by: Public

Thunderstorm wind damage was reported in Atwood with lots of trees down and power out in the city.

Flash Flood in LOGAN, KANSAS
From 11-AUG-19 21:30:00 to 11-AUG-19 21:30:00 (CST-6)
Location: WINONA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported that US Hwy 40 northeast of Winona was flooded due to heavy rain.

Thunderstorm Wind in SHERMAN, KANSAS
From 11-AUG-19 18:30:00 to 11-AUG-19 18:30:00 (MST-7)
Location: KANORADO ARPT
Magnitude: 61.00 EG
Reported by: Public

A member of the public estimated 70 mph winds about 7 miles north of Kanorado.

Thunderstorm Wind in GRAHAM, KANSAS
From 11-AUG-19 22:27:00 to 11-AUG-19 22:27:00 (CST-6)
Location: MENLO
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Flash Flood in LOGAN, KANSAS
From 11-AUG-19 21:31:00 to 11-AUG-19 21:31:00 (CST-6)
Location: RUSSELL SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported flash flooding due to heavy rain along KS Hwy 25 just north of Russell Springs.

Thunderstorm Wind in THOMAS, KANSAS
From 11-AUG-19 20:35:00 to 11-AUG-19 20:35:00 (CST-6)
Location: COLBY
Magnitude: 60.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Tree branches up to 1 inch in diameter were blown down.

Thunderstorm Wind in THOMAS, KANSAS
From 11-AUG-19 20:35:00 to 11-AUG-19 20:35:00 (CST-6)
Location: COLBY
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in GRAHAM, KANSAS
From 11-AUG-19 22:22:00 to 11-AUG-19 22:22:00 (CST-6)
Location: (HLC)HILL CITY MUNI
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in THOMAS, KANSAS
From 11-AUG-19 20:35:00 to 11-AUG-19 20:35:00 (CST-6)
Location: COLBY
Magnitude: 65.00 EG
Property damage: 1.00K
Reported by: Trained Spotter

A trained spotter reported that thunderstorm wind gusts snapped a decorative fake palm tree in half at the Oasis Travel Plaza on the south side of Colby.

Thunderstorm Wind in THOMAS, KANSAS
From 11-AUG-19 20:35:00 to 11-AUG-19 20:35:00 (CST-6)
Location: COLBY
Magnitude: 67.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in RAWLINS, KANSAS
From 11-AUG-19 20:40:00 to 11-AUG-19 20:40:00 (CST-6)
Location: LUDELL
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in NORTON, KANSAS
From 11-AUG-19 21:41:00 to 11-AUG-19 21:41:00 (CST-6)
Location: NORTON
Magnitude: 52.00 EG
Property damage: 4.00K
Reported by: Public

Thunderstorm wind damage was reported in Norton with several small tree limbs down as well as patio furniture and trash cans moved into the street.

Thunderstorm Wind in GRAHAM, KANSAS
From 11-AUG-19 22:45:00 to 11-AUG-19 22:45:00 (CST-6)
Location: BOGUE
Magnitude: 61.00 EG
Property damage: 5.00K
Reported by: Public

A member of the public reported thunderstorm wind damage in Bogue with power lines down.