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The old scale lists an F5 tornado as wind speeds of 261–318 mph (420–512 km/h), while the new scale lists an EF5 as a tornado with winds above 200 mph (322 km/h), found to be sufficient to cause the damage previously ascribed to the F5 range of wind speeds.
Frame-home structural damage cannot exceed total destruction and debris dispersal, which constitutes F5 damage. A tornado with wind speeds greater than 319 miles per hour (513 km/h) is possible, as the 1999 Bridge Creek-Moore Tornado did have 321 mph (517 km/h) winds, but that measurement was not near ground level.
The National Weather Service in Birmingham, Alabama, noted the rating for this tornado was F4 on the Fujita scale, which has a wind speed range of 207 to 260 miles per hour (333 to 418 km/h). However, the wind speeds assigned to this tornado was between 210 and 261 miles per hour (338 and 420 km/h), indicating the potential that this tornado ...
Around 7 p.m., they recorded one measurement of 301 ± 20 miles per hour (484 ± 32 km/h), [10] 50 miles per hour (80 km/h) faster than the previous record. Though this reading is just short of the theoretical F6 rating, the measurement was taken more than 100 feet (30 meters) in the air, where winds are typically stronger than at the surface.
The Pleasant Hill tornado lasted roughly 12 minutes, with estimated max wind speeds of 125 MPH, ending around 9:12 p.m. The National Weather Service believes the rotation was at least 300 yards wide.
The International Fujita scale (abbreviated as IF-Scale) is a scale that rates the intensity of tornadoes and other wind events based on the severity of the damage they cause. [1] It is used by the European Severe Storms Laboratory (ESSL) and various other organizations including Deutscher Wetterdienst (DWD) and State Meteorological Agency ...
An EF1 tornado has wind speeds ranging from 86 to 100 mph. An EF2 tornado has wind speeds ranging from 111 to 135 mph, and winds of that force can cause some significant damage.
A house was lifted off its foundation and disintegrated, and steel rods at a construction site were bent down to the ground. Video analysis indicated wind speeds of 93 m/s (208 mph; 335 km/h) at 120 metres (390 ft) above ground level. [28] Fujita's analysis would make this the first record of an F4 tornado in Japan. [29] Fujita: Jan 18 2007 Germany