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EF3 tornado in Dekalb County, Alabama

Tornado April 24, 2010 · Dekalb County, Alabama

EF3
Rating
14.4 mi
Whole path
440 yd
Path width
$2.7M
Damage as recorded

NOAA records this tornado county by county. Its path ran through Dekalb County → Chattooga County, Georgia; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 440 yards (0.25 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF3 means. On the Enhanced Fujita scale, EF3 is severe damage: whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, consistent with estimated gusts of 136–165 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 same supercell which produced the tornado in from Blount into Marshall and DeKalb Counties produced a second tornado around 11:25 PM CDT. This tornado touched down 4 miles south southwest of Mentone, near Desoto State Park. The tornado reached EF-3 intensity with speeds up to 140 mph destroying several single wide manufactured homes. The tornado also snapped and uprooted numerous large trees. Significant damage was seen along it's path to the Alabama/Georgia state line. The hardest hit areas were between CR 117 and CR 106, just to the south southeast of Mentone. The most significant damage occurred to a trailer park (Morning Glory Court) where several single wide manufactured homes were completely destroyed. Numerous large trees were also snapped or uprooted. The tornado continued moving northeast and crossed into Chattooga county (Northwest Georgia) around 11:34 PM CDT. Additional damage occurred as it traveled another 8 miles into northern Chattooga county.

The wider storm

Four damaging tornadoes tore tracks through north central and northeast Alabama during the evening and overnight hours of the 24th. These tornadoes were part of a larger regional tornado outbreak across the lower Mississippi and Tennessee Valleys. The tornadoes were associated with three separate long track supercell thunderstorms that thrived upon a very unstable and high shear environment. One of the longer track tornadoes tore through several successive communities with up to EF-3 strength in Marshall and DeKalb Counties, including the towns of Albertville, Geraldine and Pine Ridge, lifting just before reaching Fort Payne. A tornado from the same storm then touched down again in the Mentone area before crossing the Georgia state line. Another supercell produced yet another tornado southwest of Collinsville, tracking just a few miles south of the earlier damaging tornado. This tornado reached EF-4 strength when it completely leveled the McNutt United Methodist Church on County Road 55. Fortunately, no fatalities occurred with these particular tornadoes, but damages were severe.

In Marshall County, total costs from the tornado had exceeded $14 million, which included 1032 homes experiencing at least some damage, and 93 homes destroyed. In DeKalb County, damage losses were still being tallied. Debris removal costs alone have exceeded $3 million.

Began near Bankhead (34.5256, -85.5888).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 221310. Narratives are written by the National Weather Service forecast office that issued the report.

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