Around 130am CDT on this early Sunday morning, a 67 MPH wind gust occurred at the Smith Center airport, resulting in at least a few instances of tree damage in town. These strong gusts, likely out of the south-southeast, occurred on the back side of a steadily-weakening line of thunderstorms and might have been associated with a wake low. Although there were no other reports of severe-criteria wind within this six-county portion of North Central Kansas during the night, it's likely that fairly widespread gusts of at least 40-50 MPH occurred both along and behind this line of convection. Breaking down event timing, a small cluster of multicell storms first rumbled into Phillips and Rooks counties from the west around 11pm CDT on the 25th...a continuation of scattered activity that had been slowly drifting east from extreme northwest Kansas since mid-afternoon. During the ensuing few hours, this strong multicell cluster evolved into a linear mode as it pushed into Smith and Osborne counties before rapidly dissipating. A small, briefly strong storm redeveloped over Rooks County between 230-330am CDT, but that was pretty much it for the night.
On the large scale aloft, this event occurred under fairly modest quasi-zonal flow, as North Central Kansas remained well-removed from stronger flow associated with broad longwave troughs centered near both the northwest and northeast corners of the United States. However, the presence of subtle, low-amplitude shortwave troughs passing through the flow helped ignite strong to severe convection during the afternoon and evening hours to the west and northwest of the local area, in an environment featuring steep low to mid level lapse rates, around 2500 J/kg mixed-layer CAPE, and around 35 knots of 0-6 kilometer deep layer wind shear. The modest intensification of storms well after nightfall was likely aided by an increasing low level jet evident at 850 millibars. At the surface, south to southeast breezes prevailed across North Central Kansas through the night, as the area resided south of a quasi-stationary front stretched from north central into eastern Nebraska.