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EF1 tornado in Marion County, South Carolina

Tornado April 5, 2022 · Marion County, South Carolina

EF1
Rating
5.4 mi
Whole path
50 yd
Path width

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 50 yards (0.03 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

The tornado developed in a forested area north of Hwy 378 and

east of Hwy 908 on the west side of Bay Road in southeast Marion

County. The tornado tracked east-northeast and moved across Bay

Road causing damage to trees and some damage to a few structures.

The tornado then tracked across the Little Pee Dee River and across western Horry County for another 4.8 miles before dissipating at 1857 EST. While in Marion County it was rated as EF-1 (100 mph), but in Horry County, it was rated as EF-0 (80 mph). Average path width in Marion County was 50 yards.

The wider storm

A strong shortwave helped initiate pre-frontal convection in a high shear and moderately unstable environment.

Began near Britton Neck (33.8947, -79.3035).

Source: NOAA Storm Events Database, event 1013170. Narratives are written by the National Weather Service forecast office that issued the report.

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