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EF2 tornado in Campbell County, Wyoming

Tornado June 23, 2023 · Campbell County, Wyoming

EF2

Rating

9.8 mi

Whole path

800 yd

Path width

Injuries

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 800 yards (0.45 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

A tornado developed near the Campbell-Converse County line southeast of Wright, where it snapped wooden power poles and tipped over several empty train cars. It struck the operations area of the North Antelope Rochelle Coal Mine, ripping metal roofs and wall panels from shop buildings; moving and flipping cars, buses, and shipping containers; and overturning empty railroad cars. Damage severity indicated wind gusts were as high as 120 to 130 mph. No track was visible across the vegetation. Seven people sustained mostly minor injuries at the mine. The tornado continued into southwestern Weston County.

The wider storm

A tornadic thunderstorm developed over far southern Campbell County and tracked east-northeast into Weston County. The storm produced a large F-2 tornado that moved over the North Antelope Rochelle Coal Mine in far southeastern Campbell County, causing considerable damage and minor injuries at the mine. Large hail and wind gusts over 80 mph accompanied the storm.

Began near Wright (43.4986, -105.3563).

Source: NOAA Storm Events Database, event 1103685. Narratives are written by the National Weather Service forecast office that issued the report.

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