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EF1 tornado in Harper County, Oklahoma

Tornado May 23, 2019 · Harper County, Oklahoma

EF1

Rating

2.0 mi

Path length

150 yd

Path width

$20K

Damage as recorded

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 150 yards (0.09 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

An Oklahoma City television storm chaser observed a tornado from 10:42 to 10:47 pm CDT in far northeastern Harper County. An outbuilding was destroyed and numerous trees were downed on a ranch. The tornado dissipated before reaching the state line.

The wider storm

Isolated supercells that developed in the Texas Panhandle and moved into far northwestern Oklahoma with tornadoes and wind reported on the 23rd.

Began near Selman (36.9750, -99.4980).

Other tornadoes from the same storm system

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

EF3 Beaver County EFU Harper County EFU Harper County

Source: NOAA Storm Events Database, event 829986. Narratives are written by the National Weather Service forecast office that issued the report.

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