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Tropical Classification and Saffir-Simpson scale for Hurricanes

                                        Winds     Winds     Winds    Winds
Type           Category     Pressure   (knots)    (mph)     (km/h)   (m/s)

Tropical Depression          -----     20- 34	(and a "closed" circulation)
Tropical Storm               -----     35- 64

Hurricane         1           > 980    65- 83     74- 95    118-153   >30
Hurricane         2          965-979   84- 95     96-110    154-176   >40
Hurricane         3          945-964   96-113    111-130    177-209   >50
Hurricane         4          920-944  114-134    131-155    210-248   >60
Hurricane         5           < 920     > 134      >155       >248    >70

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