Supercell Thunderstorm Damages Northeast Kansas: 8/19/2011

August 19, 2011: Single Supercell Thunderstorm Causes Significant Damage In Northeast Kansas

The late evening hours of Friday, August 19th brought a swath of significant damage to parts of northeast Kansas, particularly Jackson, Atchison, Jefferson, and Leavenworth counties.  This storm originated in southeast Nebraska, where it produced isolated hail up to the size of quarters, and then weakened slightly as it crossed parts of Nemaha and Brown counties in Kansas where very heavy rainfall and isolated pea size hail occurred. 

However, the storm rapidly intensified as it moved into far southern Brown and northern Jackson counties.  It developed powerful rotation in the mid levels of the atmosphere, which only helped strengthen the supercell thunderstorm.  At this time, very large hail of baseball size up to 4.5 inches in diameter (larger than a softball!) developed and fell over the next hour or so.  Incredible wind speeds of 60 mph to more than 90 mph were reported as well as the storm tracked from northeast Jackson county southeast until it weakened slightly in the Kansas City metro area (although continuing to produce wind damage).  While the storm was relatively isolated, those in the path of the storm sustained significant property and crop damage with some entire fields completely shredded to a total loss, and windows and siding broken to pieces.

Storm Reports Received By The National Weather Service

Click on the Image Below or Here For an Interactive Storm Report Map

Storm Damage Photos

Shed destroyed near Whiting, KS
(Courtesy of Luca Cochren via WIBW)

Hail in Easton, KS
(Courtesy V. Jackson)

Bean Field Near Whiting, KS
(Courtesy of Alyssa Brown via WIBW)

Car mirrors destroyed by wind-blown hail near Whiting, KS
(Courtesy of Kerry Wright via WIBW)

North facing windows and siding broken near Whiting, KS
(Courtesy of Kerry Wright via WIBW)

North facing windows and siding broken near Whiting, KS
(Courtesy of Kerry Wright via WIBW)

 

 

Large tree snapped at the base near Whiting, KS
(Courtesy of Alyssa Brown via WIBW)

 Shed destroyed near Muscotah, KS
(Courtesy of Lynda Barber Webster via WIBW)

 Wind driven hail damage in Muscotah, KS
(Courtesy of Lynda Barber Webster via WIBW)

 



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