measuring scale of storms?
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Answer:
Hurricane winds are measured using the Saffir-Simpson Hurricane scale. This scale was first developed in the late 1960s and was further developed in the early 1970s. It uses measurements in pressure, wind speed, storm surge and damage potential to put hurricanes into 5 categories.
Answer.....
Hurricanes and other forms of tropical cyclones are often measured on the Beaufort Wind Force Scale.
It was created in 1806 by and named after British hydrographer Admiral Sir Francis Beaufort.
The scale evolved from previous theories about wind speed and conditions. The scale of 13 numbered classes (zero to 12) is based on qualitative wind conditions rather than wind speed. (The additional numbered classes 13-17 are sometimes used--primarily in China and Taiwan--for particularly strong cyclones.) It became a standard measurement for the British navy in the 1830s.
The Beaufort scale has been upgraded several times; the 1946 scale is based on the empirical formula v=0.836 B 3/2 m/s (v=equivalent wind speed at 10 m above sea surface; B=Beaufort scale number).
The Saffir–Simpson Hurricane Scale is also used for some hurricanes in the Western Hemisphere, using a five category scale of 1 to 5 distinguished by the intensities of sustained winds. A Category 1 hurricane must have a minimum of 74 mph maximum sustained winds; the strongest, Category 5, must exceed winds of 155 mph. The Saffir-Simpson scale is most often used for Atlantic Ocean storms.
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