EF1 tornado in Marshall County, Kentucky

A very brief tornado with maximum estimated winds of 100 mph damaged part of a marina on Kentucky Lake. A 50-yard section of the marina was twisted and overturned. This was one of three sections that extended into Kentucky Lake. A boat that was docked in this part of the marina was lifted onto the debris. The entire marina structure was shifted several feet and pulled away from the shore, dislodging several spud poles that anchored the floating marina structure to the lake bottom.

Clusters of thunderstorms formed over western Kentucky early in the afternoon. Several of these storms produced large hail or damaging wind. However, the main event was a line of severe thunderstorms that entered southeast Missouri about mid-afternoon and then tracked east across western Kentucky late in the afternoon and early in the evening. Several EF-1 tornadoes were associated with this line, in addition to scattered pockets of wind damage. The storms occurred under a rather strong southwest wind flow ahead of a weak cold front over far western Missouri. A 500 mb shortwave trough over the western high Plains provided some additional support for the storms. The air mass was strongly unstable, with surface capes over 3000 j/kg.