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EF2 tornado in Dekalb County, Alabama

Tornado April 29, 2014 · Dekalb County, Alabama

EF2
Rating
11.7 mi
Path length
200 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 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

A tornadic cyclic supercell produced yet another tornado along County Road (CR) 209 where mainly branches were snapped. The tornado lifted northeast snapping additional branches before strengthening as it approached CR 52. Here, severe hardwood trees were snapped or uprooted near a farmstead. Additional trees were snapped and/or uprooted along a wide swath all along CR 88. The tornado may have weakened or even lifted very briefly as it crossed the Highway 35 intersection near Dugout Valley Road/CR 97 west-norhtwest of Fort Payne. The tornado intensified once again as it tracked norhteast, uprooting and snapping more trees. The tornado reached peak intensity with estimated winds of 115 mph and a path width of 200 yards near the intersection with Chisenhall Road. At this location, the tornado rolled and separated a mobile home from its frame, peeled roofing back from another mobile home, and snapped many trees in a forested area just northeast of the intersection. It continued to track along CR 97, but weakened significantly, causing mostly tree damage or very minor structural damage to single family homes (two homes sustained minor roof damage or broken windows just north of the Chisenhall/CR 97 intersection). The tornado narrowed significantly before lifting along CR 609 just north of the intersection with CR 27.

The wider storm

A tornado outbreak occurred during the late afternoon and evening across the central Tennessee Valley on the 28th. Several cyclic supercells produced tornadoes, some of which were strong. Very heavy rainfall occurred in some areas as well. In particular, up to 5 inches fell in just a few hours which led to severe flash flooding in Valley Head.

An additional round of thunderstorms late in the day/evening of the 29th produced a few reports of damaging winds and hail.

Began near Lebanon (34.3491, -85.8401).

Other tornadoes from the same storm system

10 more tornadoes the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 505337. Narratives are written by the National Weather Service forecast office that issued the report.

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