March 19, 2018
6:50 PM3 S Highland Lakes - 1 S Whitney Junction The tornado began near Jones Chapel Loop Road with minor tree damage. The tornado then moved east and crossed Daylily Road where dozens of trees were blown down. The tornado crossed Blount Mountain along Walker Gap Road and crossed Crawford Cove Road near Highway 11. Trees in this area were mainly uprooted with only a few snapped off. The tornado continued eastbound and eventually lifted near the Interstate 59 Rest Area just south of the Ashville Exit. The majority of the damage was due to trees falling on structures and power lines. The tornado damage path was 6.38 miles long and was 880 yards wide at its widest point. Start: 33.8515/-86.4152 End: 33.8539/-86.3042
NWS EF Scale: F1
National Weather Service meteorologists surveyed damage in extreme northern Blount County and determined that the damage was consistent with an EF0 tornado, with maximum sustained winds near 80 mph. The tornado began on the west side of Highway 53/231, just south of Berry Road, in extreme northern Blount County. The tornado tracked toward the southeast, impacting four chicken houses on the east side of Highway 53/231, just north of Thomas Yates Road. Sections of metal roofing were blown off the buildings. As the tornado continued southeast, some small trees were snapped, along with large branches broken. The tornado lifted on the east side of Hopewell Road.
Six tornadoes and hail up to 3 inches in diameter affected the northern areas of Central Alabama on the afternoon and evening hours of March 19th, with a rare PDS (Particularly Dangerous Situation) Tornado Watch issued for a large portion of Central Alabama. An environment favorable for significant severe thunderstorms developed as a low-amplitude upper-level trough moved into the region with a deepening surface low passing across far north Alabama. These two features resulted in a deep column of strong wind shear with 0-6km Bulk Shear values of 60-70 knots. Additionally, moist southerly flow, warm surface temperatures, and colder temperatures aloft yielded a moderately unstable air mass. Initially, thunderstorms were producing large to very large hail. However, the tornado threat increased in the late afternoon and evening hours as wind speeds at low levels increased with the arrival of a low-level jet.
Part of 16-tornado outbreak on March 19, 2018
Six tornadoes and hail up to 3 inches in diameter affected the northern areas of Central Alabama on the afternoon and evening hours of March 19th, with a rare PDS (Particularly Dangerous Situation) Tornado Watch issued for a large portion of Central Alabama. An environment favorable for significant severe thunderstorms developed as a low-amplitude upper-level trough moved into the region with a deepening surface low passing across far north Alabama. These two features resulted in a deep column of strong wind shear with 0-6km Bulk Shear values of 60-70 knots. Additionally, moist southerly flow, warm surface temperatures, and colder temperatures aloft yielded a moderately unstable air mass. Initially, thunderstorms were producing large to very large hail. However, the tornado threat increased in the late afternoon and evening hours as wind speeds at low levels increased with the arrival of a low-level jet.