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EF2 tornado in Choctaw County, Alabama

Tornado January 21, 2017 · Choctaw County, Alabama

EF2
Rating
20.4 mi
Whole path
800 yd
Path width
4
Injuries
$750K
Damage as recorded

NOAA records this tornado county by county. Its path ran through Choctaw County → Marengo County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 800 yards (0.45 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF2 means. On the Enhanced Fujita scale, EF2 is considerable damage: roofs torn off well-built houses, mobile homes destroyed, large trees snapped or uprooted, consistent with estimated gusts of 111–135 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

The tornado first touched down on Clark Road near Gilbertown and continued 15 miles to the northeast to the Choctaw and Marengo County line. The tornado then crossed the Tombigbee River and continued into Marengo County. A total of 24 structures were damaged by the tornado along its path. 4 residences were completely destroyed, 2 of which were mobile homes with the other 2 homes having no attached foundation. 2 other mobile homes were destroyed by downed trees. Another 20 structures experienced varying degrees of damage, some of which included major roof damage. The EF-2 intensity damage was located on Chapel Hill Road, Wimberly Road, and Pleasant Hill Road. 4 people were injured with 2 receiving significant, but non life threatening injuries after they were ejected 100-200 yards from their destroyed mobile home. Damage estimates of property were around $600,000 with another $150,000 estimated on the extensive tree damage.

The wider storm

Multiple rounds of severe weather occurred across inland southwest and south central Alabama, inland southeast Mississippi, and the western Florida Panhandle from January 21st to January 22nd, 2017. The prolonged period of severe weather was the result of a longwave trough axis over the southern plains that was very slow to move east, allowing several strong shortwaves to move across the north central Gulf Coast in the southwest upper level flow. The first round of severe weather on the morning of January 21st resulted in 2 strong tornadoes over the WFO Mobile County Warning area along with straight line wind damage. Large hail was the predominate hazard with the second round of storms on the evening of January 21st. A combination of straight line winds and large hail impacted the region on the morning of January 22nd.

Began near Lou (31.8476, -88.2905).

Source: NOAA Storm Events Database, event 675630. Narratives are written by the National Weather Service forecast office that issued the report.

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