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EF1 tornado in Blaine County, Oklahoma

Tornado March 29, 2007 · Blaine County, Oklahoma

EF1
Rating
2.3 mi
Path length
20 yd
Path width
$50K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 20 yards (0.01 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 reported near Okeene and moved northeast. Damage was first noticed to a barn and grain silo 1 mile east of Okeene. The most substantial damage rated EF1 was noted at a farmstead. A small garage (open bay) was damaged. Approximately 1/3 of its aluminum roof covering peeled off and some roof wood panels were removed. A tree next to the garage had some limbs snapped off. A piece of siding from the barn was wrapped around a tree. A small half-cylinder type garage was also heavily damaged. The north side had a large portion of its siding removed and some of the wood structure were damaged. The east end had a garage door which was blown out and most of the east wall was removed. A grain silo actually lifted off the ground and landed about 100 feet away. Also present were small grain bins, in which one was tipped over and apparently rotated. A large barn had substantial damage to the roof and walls on the east and west ends of the buildings. Also, almost all siding on the north side of the building was removed. A large garage door on the south end of the barn was blown in yet its wiring still held together and the door was hanging by this wiring. Debris from the barn (all of it siding/roofing which was aluminum) was scattered to the northeast 1500-2000 feet. The tornado continued northeast before lifting 2.5 miles east of Okeene. At the strongest point the tornado reached EF1 damage causing an estimated $50 thousand in damage.

The wider storm

Showers and thunderstorms developed during the morning hours over central Oklahoma. During the afternoon hours, thunderstorms began to show brief, but persistent signs of rotation, that later resulted in three tornadoes. The most significant tornado of the day struck the western Oklahoma City metro area, producing EF2 damage. Other tornadoes were reported near Okeene, and over northwest Garfield county. Damage was reported with each of these thunderstorms, which included roof damage, tree and power line damage, and automobile accidents. No fatalities were reported, but five direct injuries were reported in western Oklahoma City.

Began near Okeene (36.1016, -98.3572).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 23549. Narratives are written by the National Weather Service forecast office that issued the report.

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