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EF1 tornado in Craig County, Oklahoma

Tornado April 30, 2019 · Craig County, Oklahoma

EF1

Rating

13.5 mi

Whole path

800 yd

Path width

$120K

Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 800 yards (0.45 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

This is the first segment of a two-segment tornado. In Craig County, this tornado developed west of the S 4450 Road and moved east-northeast damaging a home, damaging outbuildings, and uprooting trees. Based on this damage, maximum estimated wind in this segment of the tornado was 90 to 100 mph. The tornado continued into Ottawa County.

The wider storm

Strong to severe thunderstorms developed across eastern Oklahoma during the early afternoon hours of the 30th, to the east of a stationary frontal boundary that was located across north-central Oklahoma into northwest Texas. Moderately strong instability combined with strong wind shear resulted in the development of supercell thunderstorms, which produced multiple tornadoes, including two strong tornadoes, large hail up to half dollar size, and damaging winds. Locally heavy rainfall also occurred across portions of northeastern Oklahoma, which resulted in flash flooding.

Began near Bluejacket (36.8236, -95.0748).

Other tornadoes from the same storm system

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

EF2 Washington County EF2 Pittsburg County EF1 Muskogee County EF1 Nowata County EF1 Wagoner County EF1 Delaware County EF1 Le Flore County EF0 Okmulgee County EF0 Osage County EFU Rogers County EFU Mayes County

Source: NOAA Storm Events Database, event 822222. Narratives are written by the National Weather Service forecast office that issued the report.

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