South Topeka Microburst



A microburst occurred during the late afternoon hours on Monday across parts of South Topeka.  Below is a map indicating where the damage occurred west of Forbes Field (reports below in pink, labeled by estimated wind speed).  Winds were reported to have been between 65 to around 70 mph.  Hail was also reported across parts of the area during the late afternoon and early evening (reports below in yellow, labeled by stone diameter).

Below are photos taken of the damage that occurred due to the microburst.

Below is a radar loop of the 0.5 degree reflectivity from the NWS-Topeka WSR-88d (KTWX) between 406pm to 445pm Monday, July 27th.  The outflow boundary (light blue arch racing northward from the storm complex) that lifts through Shawnee County over the course of the loop does not look to be the source of the strong downburst.  Instead, a compact area of downburst wind rushed down to the surface as a portion of the storm southwest of Pauline collapsed.  The yellow circle indicates where and when the damage occurred on the nose of a small bowing segment associated with the collapsed portion of the storm. (Loop best viewed using Mozilla, and may not work with Internet Explorer).  Click here to see the image.

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