Severe Storms Strike Parts of the Region on August 11th

Radar Animation from the evening of August11th, 2012
(Radar animation above from the evening of August 11th, 2012)  

The combination of a strong upper level disturbance, along with a cold front advancing across western & north central Nebraska late Saturday afternoon and evening - brought a bout of severe weather to parts of the region on August 11th, 2012.

Wind gusts estimated as high as 70 miles an hour blasted parts of Garden County, with nickel to quarter sized hail covering the ground 12 miles south southeast of Oshkosh at 744 PM CDT. By 808 PM CDT, another high wind report came in from Keith County, at a location 6 miles west of Brule. Thunderstorm wind damage caused large trees to be blown down, with windows broken out by the damaging winds in a quonset hut and vehicle at this location.

Other strong thunderstorms moved out of southern South Dakota and across parts of north central Nebraska.  At 910 PM CDT winds were reported gusting to 60 miles an hour 7 miles west northwest of Cody in Cherry County.  Another report of 60 MPH winds came from Nenzel at 930 PM CDT.

The strongest winds were reported from the automated surface observing station (ASOS) at Miller Field in Valentine. The winds raked across the Valentine Airport, with a peak gust of 75 miles an hour at 1012 PM CDT...and a sustained wind of 62 miles an hour!

 
Please click image above for local storm reports from the evening of August 11th, 2012

A look at the internal structure of the severe storm near Oshkosh
Windows Media Video (may take a while to load dependent on bandwidth)


Below are some images snapped by Dean Cosgrove, long time storm chaser and premier photographer.  The first 2 images were snapped at around 808 PM CDT/708 PM MDT, or about the time of wind damage which was reported 6 miles west of Brule, in Keith County.

Photo courtesy of Dean Cosgrove
(Photo above by Dean Cosgrove around 808 PM CDT/Location 5 miles west of Ogallala, looking west)
Photo above by Dean Cosgrove around 808 PM CDT/Location 5 miles west of Ogallala, looking west
(Photo above by Dean Cosgrove around 808 PM CDT/Location 5 miles west of Ogallala, looking west)
Photo courtesy of Dean Cosgove

Photo credit courtesy of Dean Cosgrove

Page composition
by
Steve Carmel


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