Scientists use damage to rated tornadoes on the Enhanced Fujita (EF) scale.
There is no tool used to measure damage. Rather, engineers and meteorologists look at what kind of damage occurred to what structures. Guidelines for what to look for are detailed on the Enhanced Fujita scale.
Tornadoes do have a scale by which they are rated. It is the Enhanced Fujita scale. However, trackers do not use it to rate the tornado as it occurs. Damage is assessed by experts after the tornado has passed.
The Fujita and Enhanced Fujita scales assesses damage caused by a tornado to assign a rating.
The Fujita scale uses the severity of the damage caused by a tornado to determine its strength. The more severe the damage is the stronger the tornado.
The intensity of a tornado is usually judge based on an analysis of the damage, which is used to estimate wind speed.
No, it is possible to measure the strength of a tornado, though direct measurements are rare. Most tornadoes have their strength estimated based on the severity of the damage they cause. Occasionally, though mobile Doppler can obtain wind measurements from a tornado. One tornado on May 24, 2011 was rated EF5 after such a radar indicated winds in excess of 210 mph.
The damage is surveyed and where damage boundaries are is noted. This is the used to show how wide the tornado is. Note that the size is not a factor in how the tornado is rated but how intense the damage is.
The Enhanced Fujita scale (EF0 to EF5) is used to rate tornadoes based on the severity of the damage they cause.
Meteorologists use various techniques to measure tornado wind speeds, such as Doppler radar, damage surveys, or remote sensing instruments. By analyzing these data and environmental conditions, they can estimate the wind speeds of a tornado. Additionally, tornado wind speeds are often inferred based on the damage pattern left behind, as the Enhanced Fujita Scale correlates damage severity with wind speeds.
Forecasters predict the amount of damage from a tornado by analyzing factors such as the tornado's size, intensity, path, and the type of structures in its path. They use computer models and historical data to estimate potential damage levels.
Scientists usually use the severity of the damage a tornado causes to estimate its wind speed.
In most cases the intensity of a tornado is never actually measured. Tornadoes are rated based on the severity of the damage they cause. Mobile Doppler radar can measure wind speeds in a tornado, but since such radar cannot measure ground-level winds the measurements are not used in ratings.