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Tornado in Harmon County, Oklahoma

Tornado February 26, 2023 · Harmon County, Oklahoma

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Not rated
7.5 mi
Path length
200 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 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

Two storm chasers observed a tornado south of Vinson crossing State Highway 30. No damage was observed, and the path of this tornado is estimated.

The wider storm

A powerful storm system, with highly anomalous magnitudes of wind shear and moisture for late February, impacted the forecast area on the evening of the 26th. A broken line of severe thunderstorms developed across the eastern Texas Panhandle/far western Oklahoma and quickly swept through much of the forecast area. Widespread wind damage, including gusts near 90 mph, along with a record number of tornadoes (13) for February occurred. Several reports of large hail were also received. Behind the line of thunderstorms, a tight pressure gradient and strong westerly low-level jet allowed widespread 50-60 mph winds gusts to continue through the late evening hours.

Began near Mc Knight (34.8100, -99.9540).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 1082915. Narratives are written by the National Weather Service forecast office that issued the report.

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