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EF1 tornado in Johnston County, Oklahoma

Tornado April 30, 2019 · Johnston County, Oklahoma

EF1
Rating
1.9 mi
Whole path
30 yd
Path width
$1K
Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 30 yards (0.02 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

A tornado developed about 1.25 miles southwest of Scullin, just south of the Murray-Johnston County line. The tornado moved northeast and into Murray County. The tornado was observed by a storm chaser using a drone which observed tree damage occurring as the tornado crossed Highway 7 and into Murray County.

The wider storm

A stationary front and and upper wave produced numerous thunderstorms with a variety of severe weather on the 30th.

Began near Mill Creek (34.5040, -96.8702).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 822190. Narratives are written by the National Weather Service forecast office that issued the report.

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