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On the Saffir/Simpson scale a 4 is a major hurricane with 130-156 mph winds.
The Saffir-Simpson scale
The link provides one source of information.
The Saffir-Simpson scale.
No. Hurricanes are classified on the Saffir-Simpson scale. The Fujita scale is used to rate tornadoes.
The scale was developed in 1971 by civil engineer Herbert Saffir and meteorologist Bob Simpson.
On the Saffir/Simpson scale a 4 is a major hurricane with 130-156 mph winds.
A "major hurricane" is a hurricane rated as a 3-5 on the Saffir-Simpson scaleor, in other words, has sustained winds of at least 111 mph.The Saffir-Simpson scale goes from category 1 to category 5.See Web Links for more information on the Saffir-Simpson scale
The Saffir Simpson Scale.
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Saffir Simpson Scale
The Saffir-Simpson scale is a system of rating the intensity of hurricanes. A hurricane will fall into one of 5 intensity categories based on the storm's sustained wind speed.
The scale of a hurricane intensity is called the Saffir-Simpson Hurricane Wind Scale. It categorizes hurricanes based on their sustained wind speeds.
The link provides one source of information.
The Saffir-Simpson scale
The Saffir-Simpson scale.
No. Hurricanes are classified on the Saffir-Simpson scale. The Fujita scale is used to rate tornadoes.