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EF1 tornado in McClain County, Oklahoma

Tornado May 21, 2019 · McClain County, Oklahoma

EF1

Rating

3.8 mi

Whole path

250 yd

Path width

$31K

Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 250 yards (0.14 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 from a Quasi-Linear Convective System (QLCS) developed south of Interstate 35 and Ladd Road. At least four outbuildings were damaged and a number of trees snapped as the tornado moved northeast. The tornado crossed the Canadian River into Cleveland County near Noble.

The wider storm

An extremely unstable environment led to widespread severe weather across Texas and Oklahoma on the 20th into the morning of the 21st.

Began near Goldsby (35.1090, -97.4470).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 830391. Narratives are written by the National Weather Service forecast office that issued the report.

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