A tornado with estimated winds of 175 mph is an EF4.
It is estimated at 205 mph.
Wind speed in a tornado is usually estimated using the damage caused by the tornado's winds and the Fujita scale, which categorizes tornadoes based on their intensity. Meteorologists may also use Doppler radar data to estimate wind speeds within a tornado. Direct measurement of wind speed in a tornado is rare due to the dangerous and unpredictable nature of tornadoes.
The largest tornado ever recorded was the El Reno, Oklahoma tornado of May 31, 2013. This tornado was 2.6 miles wide. Doppler radar measured a wind gust in the tornado at 296 mph, the second highest wind speed ever recorded in a tornado.
The speed of the winds in a tornado is called the tornado's wind speed. It is usually measured using the Enhanced Fujita (EF) scale, which categorizes tornadoes based on the estimated wind speed. The wind speed can vary greatly depending on the tornado's intensity, with stronger tornadoes having faster wind speeds.
An EF5 tornado has winds in excess of 200 mph.
If you mean the one from April 27, 2011, the wind speed for that tornado was estimated at 205 mph (330 km/h), qualifying it as an EF5. Some have suggested, however, that the severe ground scouring caused by this tornado indicates winds far higher than 205 mph.
Originally the wind speed of an F3 tornado was estimated at 158-206 mph. However this estimated was later found to be too high for the damage inflicted and was lowered to 136-165 mph in an EF3 tornado.
The estimated wind speed of an EF0 tornado is 65-85 mph.
No. Wind speed measurement was ever taken from the Waco tornado. Since it was later rated F5 that would mean wind speeds were estimated to have exceeded 260 mph at some points, though later information indicates that this may have been an overestimate.
In terms of how fast a tornado is moving, the tornado is tracked on radar. The forward speed is calculated based on how far it moves in a given period of time. The wind speed of a tornado is estimated based on the severity of the damage it causes.
The Xenia, Ohio tornado of 1974 never actually had its wind speed measured as we did not have the necessary technology at the time. However, based on damage the tornado was rated F5, the highest category on the Fujita scale, which would put estimated winds in the range of 261-318 mph. Even considering the fact that this scale overestimated wind speed, that would still put the Xenia tornado's wind speed at well over 200 mph.
The strength of a tornado is typically determined using the Enhanced Fujita Scale (EF Scale) based on the estimated wind speeds and the damage caused by the tornado. Researchers survey the damage to structures, vegetation, and other objects in the tornado's path to assign it a rating on the scale.