EF2 tornado in Sequatchie County, Tennessee

A tornado formed in far northern Marion County, about one half mile from the Sequatchie County border and quickly intensified to a strong EF-2 tornado with winds of 130 mph as it crossed into Sequatchie County. A double wide mobile home was completely destroyed and an adjacent church roof was heavily damaged. The tornado passed through a grove of trees snapping nearly all of them halfway up the trunk. The strong tornado passed through a farm and caused significant damage to a two story family home. This part of the tornado path was determined to be at the high end of the EF-2 rating. As the tornado continued along a northeasterly track, two additional homes were heavily damaged before moving along an unpopulated ridge. The tornado likely skipped along this ridge as it crossed Highway 127 and then crossed Highway 111. A mobile home roof was completely removed near the corner of Shell Road and Tri Mile Road along with numerous trees that were either uprooted or snapped. The damage track seemed to end near Snow Bird Lane and Raven Cliff Road. Rear flank downdraft damage was noted farther east along Lewis Chapel Road to about Laurelwood Trail. Major roof damage was seen along Natures Trail and Lewis Chapel Road where winds were estimated around 100 mph.

A strong upper level system moved through the Eastern United States late Tuesday into early Wednesday. The associated surface low pressure system pressed north northeast from the Lower Mississippi across the Mid South on its way across the Lower Ohio Valley. While there were reports of damaging straight line wind with some of the thunderstorms generated ahead of the system cold front, the main and concentrated areas of damage were associated with tornadic supercell thunderstorms. The supercell storms developed in an area of strong shear and sufficient; albeit weak instability. Tornadoes formed in a zone favorable to rotating thunderstorm updrafts just north of a warm frontal boundary across the Tennessee Valley of Alabama northeast through Southeast Tennessee. Three tornadoes developed during the early morning hours on Wednesday, November 30th; impacting McMinn, Polk, Marion, and Sequatchie counties.