A supercell thunderstorm, embedded in a line of storms,  moved southeast across Cheyenne County during the afternoon producing a tornado, wind damage and hail up to baseball size.  The storms eventually moved into western Kansas and produced another brief tornado and marginally severe wind and hail before weakening.

Tornado in CHEYENNE, COLORADO
From 18-JUN-11 15:24:00 to 18-JUN-11 15:25:00 (MST-7)
Location: FIRSTVIEW
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The tornado remained over open fields with no known damage.

Thunderstorm Wind in CHEYENNE, COLORADO
From 18-JUN-11 14:50:00 to 18-JUN-11 14:50:00 (MST-7)
Location: WILD HORSE
Magnitude: 65.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: COOP Observer

Five to nine inch diameter limbs torn from trees. A ten foot long empty stock tank was blown 1/8 mile.  A ten foot long metal feeder was damaged and blown 1/16 mile.  Time of report estimated from radar and nearby storm reports.

Hail in KIT CARSON, COLORADO
From 18-JUN-11 14:09:00 to 18-JUN-11 14:09:00 (MST-7)
Location: VONA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHEYENNE, COLORADO
From 18-JUN-11 14:40:00 to 18-JUN-11 14:40:00 (MST-7)
Location: AROYA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHEYENNE, COLORADO
From 18-JUN-11 15:10:00 to 18-JUN-11 15:10:00 (MST-7)
Location: WILD HORSE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHEYENNE, COLORADO
From 18-JUN-11 15:12:00 to 18-JUN-11 15:12:00 (MST-7)
Location: KIT CARSON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in CHEYENNE, COLORADO
From 18-JUN-11 15:13:00 to 18-JUN-11 15:13:00 (MST-7)
Location: KIT CARSON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in CHEYENNE, COLORADO
From 18-JUN-11 15:17:00 to 18-JUN-11 15:17:00 (MST-7)
Location: KIT CARSON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in CHEYENNE, COLORADO
From 18-JUN-11 15:30:00 to 18-JUN-11 15:30:00 (MST-7)
Location: KIT CARSON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Five to six inch diameter tree limbs down around town. Time of report is approximate.

Hail in CHEYENNE, COLORADO
From 18-JUN-11 16:05:00 to 18-JUN-11 16:05:00 (MST-7)
Location: CHEYENNE WELLS
Magnitude: 4.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHEYENNE, COLORADO
From 18-JUN-11 16:10:00 to 18-JUN-11 16:10:00 (MST-7)
Location: SORRENTO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CHEYENNE, COLORADO
From 18-JUN-11 16:22:00 to 18-JUN-11 16:22:00 (MST-7)
Location: CHEYENNE WELLS
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter estimated peak wind gusts near 75 mph.

Thunderstorm Wind in CHEYENNE, COLORADO
From 18-JUN-11 16:34:00 to 18-JUN-11 16:34:00 (MST-7)
Location: KIT CARSON
Magnitude: 65.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A power pole was snapped off at the base.

Hail in CHEYENNE, COLORADO
From 18-JUN-11 16:22:00 to 18-JUN-11 16:22:00 (MST-7)
Location: CHEYENNE WELLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in CHEYENNE, COLORADO
From 18-JUN-11 14:52:00 to 18-JUN-11 14:53:00 (MST-7)
Location: WILD HORSE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

The tornado remained over open fields with no known damage.