Hurricane and Typhoon

Katrina抵达new orleans风速达62m/s左右,按台风的定义属于super typhoon,如果要折算成风速级别的话,大概是Beanfort level 17左右。
  作为对比,Typhoon Talim登陆福建时是45 m/s,TY Haitang登陆福建大概30m/s,去年的 TY Rananim(云娜)登陆的时候大概也是45m/s多些。

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