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Tornado in Natrona County, Wyoming

Tornado June 23, 2023 · Natrona County, Wyoming

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Not rated
0.7 mi
Path length
50 yd
Path width
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.

Not rated. NOAA lists no rating for this tornado. Ratings come from surveying damage, and the National Weather Service now records “EFU” (unknown) when a tornado hit nothing a survey team could rate.

What the National Weather Service wrote

The public sent a picture of a rope tornado to the north of Natrona. The tornado remained over open country and caused no known damage. A rating of EFU was assigned because the tornado traversed remote land lacking damage indicators such as trees structures.

The wider storm

An upper level low passing over Wyoming combined with a strong jet stream to bring an outbreak of severe weather. Three tornadoes were confirmed in the WFO Riverton warning area on this day. This was the most in one day since June 12, 2017. There was one tornado in Sweetwater County and two in Natrona County. The largest and most impactful tornado was south of Midwest, WY in northern Natrona County where a home and surrounding property was damaged. Very large hail also occurred with some of the storms. The largest hail occurred in southern Johnson County and northern Natrona County where baseball size hail was reported from strongly rotating supercell thunderstorms. Other severe thunderstorms moved from Lander to Riverton and dropped quarter to golf ball size hail, causing damage to many roofs and vehicles.

Began near Merino (43.2280, -106.7308).

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 1105507. Narratives are written by the National Weather Service forecast office that issued the report.

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