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EF0 tornado in Umatilla County, Oregon

Tornado March 5, 2024 · Umatilla County, Oregon

EF0

Rating

0.1 mi

Path length

3 yd

Path width

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 3 yards (0.00 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

At least one, possibly multiple landspouts were observed by a member of the public west of Highway 11 between Athena and Milton Freewater. Pictures taken show one well defined landspout and another much smaller landspout within it's vicinity.

The wider storm

A frontal boundary slowly moving south across the region and the passage of a shortwave in northwest flow aloft led to the development of convective showers developing in the late morning and early afternoon of March 5th. Under these convective showers, at least one landspout was able to develop south of Milton-Freewater in the late morning hours.

Began near Blue Mtn (45.8700, -118.4200).

Source: NOAA Storm Events Database, event 1200045. Narratives are written by the National Weather Service forecast office that issued the report.

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