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As with the Fujita scale, the Enhanced Fujita scale is a damage scale and only an estimate for actual wind speeds. While the wind speeds associated with the damage listed did and have not undergone empirical analysis (such as detailed physical or any numerical modeling) due to expensive costs, the wind speeds were obtained through a process ...
A unique feature of the International Fujita scale compared to the Fujita or Enhanced Fujita scale is a new damage indicator based on measured wind speeds. For the IF scale, only wind speeds measured at or below 10 metres (11 yd) can be used to determine a rating. Doppler weather radar measurements are also able to be used to determine a rating ...
The expanded and refined damage indicators and degrees of damage standardize what was somewhat ambiguous. It also is thought to provide much better estimates of wind speeds and sets no upper limit on the wind speeds for the highest level, EF5. Environment Canada began using the Enhanced Fujita scale in Canada on April 1, 2013. [22]
Post-damage survey estimated peak wind speeds of over 100 mph (160 km/h) [8] 1993 Storm of the Century: March 12–13, 1993: Florida and Cuba; associated with very significant storm surge: June 4, 1993 Derecho: June 4, 1993: Midwestern US, Mid-Atlantic US – A fast moving derecho causes significant wind speeds and damage across its path.
Each year, more than 2,000 tornadoes are recorded worldwide, with the vast majority occurring in North America and Europe. [9] In order to assess the intensity of these events, meteorologist Ted Fujita devised a method to estimate maximum wind speeds within tornadic storms based on the damage caused; this became known as the Fujita scale.
At times, multiple vortices swirled within the tornado, which lasted for about 45 minutes and traveled about 44 miles. For less than a second, the researchers calculated wind speeds of more than ...
The AccuWeather Local StormMax™ straight-line wind gust is 80 mph into Friday night and is stronger than that of the minimum threshold for a hurricane (74 mph).
The only evidence indicating wind speeds found in the tornado was the damage left behind by tornadoes that struck populated areas. Some believed they reach 400 miles per hour (640 kilometers per hour); others thought they might exceed 500 miles per hour (800 km/h), and perhaps even be supersonic .