This Sunday afternoon event was part of the same large-scale system that produced a couple severe thunderstorms the previous day. A digging upper-level trough was over the western United States, while low pressure continued to organize over South Dakota, becoming vertically-stacked by evening. The associated cold front progressed through North Central Kansas during peak heating, initiating the thunderstorms. Prior to thunderstorm development, a subtle short-wave trough moved through, introducing cooler and drier air aloft and increasing potential instability. The exit region of an 85 knot upper-level jet streak nosed into Oklahoma, coupling with the cold front to create deep, large-scale lift.
Surface temperatures peaked around 80, while dewpoints were in the 60s ahead of the front. MLCAPE was not overly impressive, with 1000-1500 J/kg ahead of the front. Thunderstorms were numerous this afternoon, especially over eastern Kansas where the first batch of multicell storms developed. A second batch also affected eastern Kansas but they began modestly over North Central Kansas as a few scattered storms. The strongest of these storms developed over eastern Rooks county, just after 6 pm CDT, and intensified as it moved east across Osborne and Mitchell counties. Upon entering Mitchell county around 7:10 pm CDT, the storm bowed outward. This is when it began producing wind damage roughly along Highway 24, from Glen Elder east to Beloit. Trees and large branches were blown down, and a roof was blown off a building at a lumber yard. In Beloit, winds of 63 mph were measured at the airport.