The original Fujita scale and the Enhanced Fujita scale primarily base their ratings on what observation?

The diameter of the funnel cloud

The amount and type of damage caused

A key improvement of the EF scale over the original F scale was the introduction of what detailed assessment tools?

Damage Indicators and Degrees of Damage

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01In what year was the Enhanced Fujita (EF) scale officially implemented in the United States, replacing the original scale?
02What is the highest and most destructive rating on the Enhanced Fujita (EF) scale?
03What level of damage is associated with a tornado rated EF0 on the Enhanced Fujita scale?
04The original Fujita scale and the Enhanced Fujita scale primarily base their ratings on what observation?
05A key improvement of the EF scale over the original F scale was the introduction of what detailed assessment tools?
06What is the range of categories on the original Fujita (F) scale for classifying tornadoes?
07An EF5 tornado, the highest rating, is characterized by estimated three-second gust wind speeds exceeding what threshold?
08Who developed the original tornado intensity scale in 1971, which was later updated to the Enhanced Fujita scale?