Thunderstorms have developed in southern Kansas. In the heat, the storms, which are near Cheney Lake, produced a small microburst at about 8:18pm. The image below is from the Wichita Terminal Doppler Weather Radar and the greens are winds toward the radar (blowing from northwest to southeast) and the orange are winds blowing away from the radar (southeast toward the northwest).
The microburst is likely associated with this rainshaft (enlarged from above photo):
And, here is the conventional radar image of the storm.