A supercell thunderstorm moved across northern Kit Carson and southern Yuma counties in Colorado, and eventually merged into a line of storms moving across Nebraska.  Numerous reports of damage to irrigation pivots, roofs, outbuildings, trees and utility poles were received across the area.

Hail in YUMA, COLORADO
From 16-JUN-11 17:50:00 to 16-JUN-11 17:50:00 (MST-7)
Location: KIRK
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Thunderstorm Wind in KIT CARSON, COLORADO
From 16-JUN-11 17:05:00 to 16-JUN-11 17:05:00 (MST-7)
Location: SEIBERT
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Peak wind gusts were estimated to be near 70 mph.

Thunderstorm Wind in YUMA, COLORADO
From 16-JUN-11 17:20:00 to 16-JUN-11 17:20:00 (MST-7)
Location: YUMA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public estimated peak wind gusts to be near 60 mph.

Thunderstorm Wind in KIT CARSON, COLORADO
From 16-JUN-11 17:30:00 to 16-JUN-11 17:30:00 (MST-7)
Location: STRATTON
Magnitude: 61.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

The front porch door was damaged and several trees uprooted.

Thunderstorm Wind in KIT CARSON, COLORADO
From 16-JUN-11 17:30:00 to 16-JUN-11 17:30:00 (MST-7)
Location: SEIBERT
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in YUMA, COLORADO
From 16-JUN-11 18:15:00 to 16-JUN-11 18:15:00 (MST-7)
Location: IDALIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in KIT CARSON, COLORADO
From 16-JUN-11 17:35:00 to 16-JUN-11 17:35:00 (MST-7)
Location: STRATTON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in YUMA, COLORADO
From 16-JUN-11 17:50:00 to 16-JUN-11 17:50:00 (MST-7)
Location: KIRK
Magnitude: 1.25 
Property damage: 0.60K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind-blown hail broke windows in residence.

Hail in YUMA, COLORADO
From 16-JUN-11 17:50:00 to 16-JUN-11 17:50:00 (MST-7)
Location: KIRK
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Resident reports an unknown amount of damage to the roof of an outbuilding and home, as well as crops.

Hail in YUMA, COLORADO
From 16-JUN-11 17:35:00 to 16-JUN-11 17:35:00 (MST-7)
Location: KIRK
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in YUMA, COLORADO
From 16-JUN-11 17:35:00 to 16-JUN-11 17:35:00 (MST-7)
Location: KIRK
Magnitude: 74.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A building under construction was blown down by thunderstorm winds.

Thunderstorm Wind in KIT CARSON, COLORADO
From 16-JUN-11 17:20:00 to 16-JUN-11 17:20:00 (MST-7)
Location: VONA
Magnitude: 70.00 EG
Property damage: 18.00K
Crop damage: 0.00K
Reported by: Storm Chaser

This report was relayed via The Spotter Network.  Shingles were blown off a roof, four-inch diameter tree branches were broken, a 30-foot tall spruce tree was toppled onto a house, and a grain bin was blown off its foundation and moved about one quarter of a mile.  No injuries were reported.

Thunderstorm Wind in KIT CARSON, COLORADO
From 16-JUN-11 17:30:00 to 16-JUN-11 17:40:00 (MST-7)
Location: STRATTON
Magnitude: 78.00 EG
Property damage: 300.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A farmstead received severe wind damage as an intense Rear Flank Downdraft swept across Kit Carson county about 8 miles north of Stratton.  An unoccupied trailer home, barn and grain bin were destroyed, and damage occurred to several vehicles and numerous light poles.  Cattle feeders were also damaged, and a total of three irrigation pivots in the area were toppled.