EF1 tornado in Caldwell County, Kentucky

A large metal building sustained partial loss of the roof and a wall. Several power poles were snapped. The porch was lifted up from the front of a house. Several homes and businesses sustained partial shingle loss. Dozens of trees were snapped or uprooted. The Western Kentucky Parkway was shut down in Princeton after a large power transmission line fell onto the roadway near a sub-station. Peak winds were estimated near 100 mph. The maximum intensity of the tornado was at the Western Kentucky Parkway interchange with Kentucky Route 91 in Princeton.

Clusters of supercell thunderstorms moved rapidly east around 50 knots across western Kentucky during the afternoon. Some of these storms produced tornadoes. Low level wind shear was very strong, with 0 to 1 km bulk shear near 50 knots. This shear was present amidst decent instability for late fall, with mixed-layer capes of 500 to 1000 j/kg. One supercell cluster moved east from the Paducah area along the Western Kentucky Parkway. The other supercell cluster moved east across the far northwest counties of Kentucky, passing south of Evansville and then across the Owensboro area. The storms initiated over Missouri along a pre-frontal low pressure trough, then moved east across the Lower Ohio Valley. Strong southerly surface winds ahead of the storms gusted up to 50 mph during the early morning hours. An off-duty meteorologist measured a gust to 50 mph in Calvert City in Marshall County.