An F4 or higher tornado (the only higher rating being F5) is classified as violent.
The F4 tornado that hit Hamden, Connecticut in 1989 struck on July 10.
The Goliad, Texas tornado was an F4.
The Hallam, Nebraska tornado was rated F4
An F4 tornado moved along the northern part of the San Antonio area on April 28, 1953, killing one person.
Yes. F4 is the second strongest category on the Fujita scale, indicating an extremely powerful tornado that can completely level well-built homes.
There have been a number of tornadoes that have stuck St. Louis including a few F4 tornadoes. The most significant tornado to strike the city, which occurred on May 27, 1896 and killed 255 was an F4.
An F4 tornado can be a quarter of a mile wide, but that is by no means a requirement. Tornado ratings are based on the severity of the damage, not the size of the tornado. There is a tendency for violent tornadoes to be large, but they don't have to be. A path width of 1/4 mile would not be uncommon for an F4, but sizes have ranged from as small as 100 yards to as wide as 2.5 miles.
An F4 tornado has wind speeds ranging from 207 to 260 mph (333 to 418 km/h). These tornadoes are considered very powerful and can cause severe damage to structures and the environment.
F4 and F5 are the two strongest categories of tornado on the Fujita scale. A damage based scale which rates tornadoes from F0 to F5. An F4 tornado will reduce most houses to piles of rubble. An F5 tornado will completely annihilate almost any house and wipe it clean off its foundation. Winds in an F5 can exceed 300 mph.
The Wichita Falls tornado, which occurred on April 10, 1979, was rated an F4 on the Fujita scale. It caused extensive damage and resulted in 42 fatalities.
An F4 tornado is considered to be a violent tornado with wind speeds ranging from 207-260 mph. It is capable of causing devastating damage, including leveling well-constructed homes and turning cars into missiles. Due to its strength, an F4 tornado poses a significant risk to life and property.