This page documents tornadoes that were unofficially rated F6 or EF6 by TG. F6 tornadoes had a wind speed of 300+ mph. EF6 tornadoes have a wind speed of 319 mph or more. (This is just an article that I made for fun.)
A tornado tore through Flint, leaving only bare slabs of homes; rated low-end F6.
April 3, 1974
Entire rows of brick homes were swept away and sustained F5 damage. Fujita himself thought it deserved an F6 rating.
April 3, 1974
Multiple well-built, anchor bolted homes were swept away, including one that sustained total collapse of its poured concrete walk-out basement wall.
April 3, 1974
Foundations were dislodged and swept away, making it the strongest F6 tornado on record.
June 13, 1976
Fujita mentioned that this tornado was one of the most intense he surveyed.
April 4, 1977
Many homes were swept away, some of which had all of their cinder block walk-out basement walls completely swept away as well. Trees were debarked and two dump trucks were thrown through the air.
June 8, 1995
Project VORTEX assessed tornado to be F5; one home was so obliterated that the National Weather Service survey likely missed it. Intense pavement and ground scouring occurred, with only bare soil left in some areas. Rated low-end F6.
May 27, 1997
Produced some of the most extreme damage ever documented. An entire subdivision of well-built homes was swept completely away with very little debris remaining. Some of the homes were well-bolted to their foundations. Long expanses of pavement was torn from roads, and a large swath of ground was scoured out to a depth of 18 in (0.46 m). Vehicles were torn apart and scattered across fields, and a recycling plant was obliterated. Tornado was very slow-moving, which may have exacerbated the destruction to some extent.
May 3, 1999
Mobile radar measured winds of 301 mph, the highest documented on the Earth, however, the tornado was only rated low-end F6.
Loyal Valley, TX
May 11, 1999
Extremely violent F4 tornado produced damage comparable to the 1997 Jarrell, TX F5. Soil was scoured several inches leaving only thick mud. Vehicles were thrown incredible distances and were caked in mud. Pavement was scoured for great stretches of road.
Officially rated high-end F4, though one survey revealed potential F5 damage. Two homes were completely swept away, with debris scattered over great distances. Large pieces of a pickup truck were found 3/4 of a mile away from the residence where it originated, and a 720-foot long stretch of pavement was scoured from a road. Ground scouring occurred, and numerous mesquite trees were completely denuded and debarked.  A reporter who also witnessed the destruction at Jarrell said "I hadn't seen anything like that. I couldn't believe what it did to animals, This was wiped clean, too, but the cattle - their hides had been ripped right off of them. Some of them were missing heads, and some were caught up and entwined in barbed wire." Had this tornado touched down in an urban area, the devastation likely would have rivaled that from Oklahoma City or the storm that leveled a subdivision in Jarrell in 1997.
May 25, 2008
A concrete walk-out basement wall was pushed over at one home, and the concrete floor was cracked. A rebar support set into the foundation of another home was found snapped in half, and reinforced concrete light poles were snapped and dragged along the ground. A large industrial building was completely destroyed, with metal beams twisted and sheared off at their bases, and the foundation pushed clean of the metal framing and debris. Vehicles were thrown long distances and stripped down to their frames as well. Additionally, a large field east of Parkersburg was filled with finely granulated debris that was wind-rowed in long streaks, trees were completely debarked, and shrubs were uprooted and stripped in some areas. First rated EF6 tornado.
April 27, 2011
Numerous well-built, anchor-bolted brick homes were swept away, including one that had part of its concrete slab foundation pulled up and dislodged slightly. An SUV was thrown half a mile into the top of the town's water tower. In the most intense damage area, all plumbing and appliances at home-sites were "shredded or missing." Chip and tar pavement was torn from road, and a pickup truck that was thrown from one home was never recovered. A large brick funeral home was reduced to a bare slab, and extensive wind-rowing of debris occurred next to the foundation. Outside town, the ground was deeply scoured in an open field. Additionally, numerous trees and low shrubbery were debarked and shredded.
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