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EF1 tornado in Bryan County, Oklahoma

Tornado April 22, 2020 · Bryan County, Oklahoma

EF1
Rating
1.2 mi
Path length
30 yd
Path width
$20K
Damage as recorded
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 was observed at close range by a storm chaser. The tornado was observed to break branches off a number of trees, and damage a building as it crossed Robinson Road, then cross over a pond.

The wider storm

A dryline and upper level wave combined with strong shear to produce multiple tornadic supercells across southern Oklahoma on the 22nd.

Began near Blue (34.0680, -96.2210).

Other tornadoes from the same storm system

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

EF2 Marshall County 2 deadEF2 Carter CountyEF1 Garvin CountyEF1 Johnston CountyEF1 Bryan CountyEF0 Carter CountyEF0 Marshall CountyEF0 Coal CountyEFU Marshall County

Source: NOAA Storm Events Database, event 890710. Narratives are written by the National Weather Service forecast office that issued the report.

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