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EF1 tornado in Bibb County, Alabama

Tornado August 31, 2017 · Bibb County, Alabama

EF1
Rating
6.5 mi
Path length
100 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 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

NWS meteorologists surveyed damage in western Bibb County and determined that the damage was consistent with an EF1 tornado. The tornado spun up along Road 700 north of Highway 25 in the Oakmulgee District of the Talladega National Forest, just west of Lake Ponderosa, where a couple tree branches were broken. It continued northeast through forested land and strengthened as it approached County Highway 16. There, an anchored barn and shed both collapsed, and an unanchored mobile home was rolled over, while numerous softwood trees were snapped. After crossing County 16, it damaged the tin roof of an abandoned structure, and continued to snap numerous trees as it began to parallel County Road 16 and cross Highway 1. The roof was damaged on a small shed along Sugar Hill Lane with continued tree damage. The tornado dissipated after crossing Ward School Road, prior to reaching Highway 82 and Eoline. The tornado was captured in a couple videos. The parent supercell went on to exhibit a couple additional tight velocity couplets and a lowering in correlation coefficient as it continued through Bibb County near West Blocton and Woodstock. However, survey teams could not find any additional damage on any accessible roads, and no additional damage was reported.

The wider storm

The remnants of Hurricane Harvey tracked northeast across Louisiana and along the Mississippi River. Feeder bands on the east side of Harvey produced four tornadoes across central Alabama.

Began near Pondville (32.9173, -87.3345).

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 719988. Narratives are written by the National Weather Service forecast office that issued the report.

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