EF0 tornado in Marshall County, Kentucky

This tornado occurred on the south side of Calvert City near the intersection of U.S. Highway 62 and the Purchase Parkway. Peak winds were estimated near 85 mph. Metal roofing was removed from about two-thirds of a small strip mall. There was other minor damage to structures, as well. One large tree was uprooted, and limbs were broken on several other trees.

An outbreak of severe thunderstorms and isolated tornadoes occurred ahead of a cold front. Thunderstorms increased in coverage over southeast Missouri and then spread east-northeast into southern Illinois and western Kentucky during the late afternoon and evening. A surface low pressure wave over the Ozark Mountain region accelerated eastward in advance of a compact upper-level shortwave over the southern Plains. A mid-level dry slot overspread the surface warm sector, where dew points were in the low to mid 60's. Extremely strong wind shear compensated for weak instability. Strong forcing along the front and a moist low level air mass contributed to a forced line of storms, including some without lightning.