An isolated supercell thunderstorm moved from Imperial, Nebraska southeast to Benkelman, and traveled across northwest Kansas through Bird City, McDonald, to Colby and Oakley before weakening across Gove county Kansas.  Widespread wind and hail damage was reported with the storm through the late afternoon hours.  A second strong thunderstorm moved southeast during the evening, producing large hail over Hitchcock county Nebraska and Norton county Kansas.

Hail in THOMAS, KANSAS
From 08-AUG-11 17:59:00 to 08-AUG-11 17:59:00 (CST-6)
Location: COLBY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in THOMAS, KANSAS
From 08-AUG-11 17:53:00 to 08-AUG-11 17:53:00 (CST-6)
Location: COLBY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in LOGAN, KANSAS
From 08-AUG-11 18:10:00 to 08-AUG-11 18:10:00 (CST-6)
Location: MONUMENT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in CHEYENNE, KANSAS
From 08-AUG-11 17:02:00 to 08-AUG-11 17:02:00 (CST-6)
Location: BIRD CITY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Estimated wind gusts of over 70 MPH reported.

Thunderstorm Wind in LOGAN, KANSAS
From 08-AUG-11 18:10:00 to 08-AUG-11 18:10:00 (CST-6)
Location: MONUMENT
Magnitude: 70.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A semi-truck was blown over, with no injuries reported.

Hail in NORTON, KANSAS
From 08-AUG-11 20:07:00 to 08-AUG-11 20:07:00 (CST-6)
Location: EDMOND
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in THOMAS, KANSAS
From 08-AUG-11 17:33:00 to 08-AUG-11 17:33:00 (CST-6)
Location: LEVANT
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Shingles were blown off a house roof.

Hail in THOMAS, KANSAS
From 08-AUG-11 17:40:00 to 08-AUG-11 17:40:00 (CST-6)
Location: LEVANT
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Newspaper photo showed a hailstone measuring 2.75 inches in diameter from a farm south of Levant.

Thunderstorm Wind in CHEYENNE, KANSAS
From 08-AUG-11 17:00:00 to 08-AUG-11 17:00:00 (CST-6)
Location: BIRD CITY
Magnitude: 61.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: Emergency Manager

Power lines reported down in Bird City.

Thunderstorm Wind in RAWLINS, KANSAS
From 08-AUG-11 17:20:00 to 08-AUG-11 17:20:00 (CST-6)
Location: BEARDSLEY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter estimated peak winds to be near 70 mph.

Hail in THOMAS, KANSAS
From 08-AUG-11 17:38:00 to 08-AUG-11 17:38:00 (CST-6)
Location: LEVANT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in THOMAS, KANSAS
From 08-AUG-11 17:33:00 to 08-AUG-11 17:33:00 (CST-6)
Location: COLBY MUNI ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in THOMAS, KANSAS
From 08-AUG-11 17:40:00 to 08-AUG-11 17:40:00 (CST-6)
Location: LEVANT
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in THOMAS, KANSAS
From 08-AUG-11 17:40:00 to 08-AUG-11 17:40:00 (CST-6)
Location: COLBY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in THOMAS, KANSAS
From 08-AUG-11 17:43:00 to 08-AUG-11 17:43:00 (CST-6)
Location: LEVANT
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in THOMAS, KANSAS
From 08-AUG-11 17:48:00 to 08-AUG-11 17:48:00 (CST-6)
Location: COLBY
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Hail in THOMAS, KANSAS
From 08-AUG-11 17:50:00 to 08-AUG-11 17:50:00 (CST-6)
Location: COLBY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CHEYENNE, KANSAS
From 08-AUG-11 16:55:00 to 08-AUG-11 16:55:00 (CST-6)
Location: BIRD CITY
Magnitude: 74.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A couple trees uprooted along highway 161.  One of the trees was 40 feet tall and one and a half feet in diameter.  Other trees had ten-inch diameter limbs broken off the top.  The metal roof of a building was torn off.  Wind gust and time of report were estimated from Doppler radar.

Thunderstorm Wind in LOGAN, KANSAS
From 08-AUG-11 18:25:00 to 08-AUG-11 18:25:00 (CST-6)
Location: OAKLEY
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in THOMAS, KANSAS
From 08-AUG-11 17:53:00 to 08-AUG-11 17:53:00 (CST-6)
Location: COLBY
Magnitude: 70.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down in town, some power lines were down and a couple businesses in town had windows broken.

Thunderstorm Wind in THOMAS, KANSAS
From 08-AUG-11 17:54:00 to 08-AUG-11 17:54:00 (CST-6)
Location: COLBY
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in THOMAS, KANSAS
From 08-AUG-11 17:59:00 to 08-AUG-11 17:59:00 (CST-6)
Location: COLBY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Tree branches down in town. Some localized minor street flooding occurring in town.

Thunderstorm Wind in CHEYENNE, KANSAS
From 08-AUG-11 16:50:00 to 08-AUG-11 16:50:00 (CST-6)
Location: BIRD CITY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Six to eight inch diameter tree limbs broken.  Large trees blown down on the west side of town.

Thunderstorm Wind in CHEYENNE, KANSAS
From 08-AUG-11 17:02:00 to 08-AUG-11 17:02:00 (CST-6)
Location: BIRD CITY
Magnitude: 70.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A house reportedly lost part of its roof.

Thunderstorm Wind in RAWLINS, KANSAS
From 08-AUG-11 17:06:00 to 08-AUG-11 17:06:00 (CST-6)
Location: MC DONALD
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree was split and blown across highway 36.