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Saffir-Simpson scale ranks storms' strength

POSTED: July 13, 2010 12:57 p.m.

The scale has five ranks.

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A hurricane’s strength is ranked on a scale of 1 to 5, a system known as the Saffir-Simpson Scale. Categories are determined by barometric pressure (in inches) in the center of the hurricane, wind speed, storm surge, and extent of damage.
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