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EF2 tornado in Hale County, Alabama

Tornado April 15, 2011 · Hale County, Alabama

EF2
Rating
24.1 mi
Whole path
880 yd
Path width
$3.4M
Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 880 yards (0.50 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 second segment of this tornado crossed into Hale County, just north of Creehill Creek. This tornado began in Greene County 2.2 miles east of Forkland. The tornado moved northeast into Hale County where it snapped and uprooted hundreds of trees. As the tornado crossed State Highway 14, it strengthened to an EF-2 rating, with maximum winds of 130 mph. Three mobile homes were severely damaged just north of Greensboro. The tornado lifted north of State Highway 25, 2.4 miles west of the Bibb County line.

The wider storm

A potent storm system, which wreaked havoc across the eastern half of the United States on April 14-16, produced a significant and historic tornado outbreak across Central Alabama on April 15. Forty tornadoes, 30 of which touched down in Central Alabama, occurred in the state. At the time, this set a new record for number of tornadoes within the state from one event. This record was broken on April 27, 2011.

A surface low developed across the Central Plains on Thursday, April 14, and strengthened as it moved into the mid-Mississippi River Valley. In response, surface dew points in the middle to upper 60s surged northward into Central Alabama and deep vertical wind shear increased, providing support for tornadic supercell development. A weakening line of thunderstorms moved into northwest Central Alabama early Friday morning. The southern end of this line intensified by mid day as it encountered a more unstable airmass. South of the line, supercells formed in Mississippi and tracked eastward into west Central Alabama. The entire system pushed east across the area over the course of about twelve hours, exiting east Central Alabama in the early morning hours on Saturday, April 16. In addition to the thirty tornadoes, the storm system produced widespread straight line wind damage and numerous large hail reports.

Began near Arcola (32.6627, -87.7933).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 310080. Narratives are written by the National Weather Service forecast office that issued the report.

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