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EF0 tornado in Copiah County, Mississippi

Tornado April 30, 2017 · Copiah County, Mississippi

EF0
Rating
5.2 mi
Path length
100 yd
Path width
$50K
Damage as recorded
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 EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 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

This tornado touched down along Highway 28, uprooting some trees and snapping large limbs. It continued northeast, crossing Dentville Road and Welch Lane before crossing I-55. Many trees were uprooted along the path. The tornado then crossed US-51, uprooting some trees and snapping some large limbs. It continued just northeast into a wooded area, where some trees were uprooted, before lifting. The maximum wind speed was 85 mph.

The wider storm

During the early morning hours of April 30th, a squall line of severe thunderstorms developed across central Louisiana and pushed eastward across the ArkLaMiss. The line intensified as it approached the Mississippi River and caused wind damage and tornadoes. As the convective system evolved into Mississippi, numerous tornadoes developed along the advancing line, with the most prolific damage occurring along the track of a large meso-scale convective vortex (MCV). This feature tracked roughly from Claiborne County through western Hinds/Madison, eastern Yazoo, eastern Holmes, southeastern Carroll, Montgomery, and northwestern Webster counties. This corridor is where the most significant damage occurred, as well as one fatality. Flash flooding, hail, and other wind damage occurred as these storms moved through.

Began near Gallatin (31.8472, -90.4507).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 690453. Narratives are written by the National Weather Service forecast office that issued the report.

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