A deep upper level trough was in place across the central U.S. on this day. This translated down to the surface as well, with strong SW flow in place across much of Ohio Valley. Meanwhile, a cold front, extending from a occluded low pressure system in southeast Canada, was located just ahead of the trough, being pushed eastward with the upper level flow. During the first part of the day on the 17th, this front was located NW of the state, making its way eastward. By the afternoon and evening hours, it began to push into Kentucky, developing a secondary low pressure system. This low continued to gain strength, traversing eastern KY, along with the surface cold front, through the late evening and first part of the overnight.
At 21Z on the 17th, the radar showed rain increasing across eastern KY ahead of this powerful cold front. An intensifying 70 to 80kt 850mb jet was analyzed just ahead of the boundary, which combined with some downslope drying, to produce strong to damaging wind gusts across portions of eastern Kentucky. A wind advisory and high wind warning were in effect for all of eastern Kentucky through the evening and into the first part of the overnight given the conditions. Gradient winds were the culprit for multiple trees down across eastern Kentucky, specifically in Clay, Floyd, Harlan, and Perry counties.
Aside from the intense gradient winds, strong to severe storms also develop along and just ahead of the actual cold front as it moved through. These storms helped to translate the higher winds aloft down to the ground, resulting in multiple reports of wind damage across Powell and Estill Counties.
The event ended up being centered around wind damage, both gradient and convective, all ending just after the front passed through and exited eastern KY by 6Z on the 18th.