Talk:Saffir–Simpson scale/@comment-108.210.220.120-20131103015813/@comment-33138403-20170919134832

I think cat 5 and 6 is different on

1. there is something called regional shielding by hills. If in inland, a hill can reduce a lot of the wind force. Notable example is super typhoon dujuan that hit Taiwan at near cat 5 intensity but most region did not record that high wind speed. Therefore it may help people survive from a cat 5 direct hit If there is something at 300+kph or 195mph, this will not help much.

2.a storm that make landfall well exceed minimum req of cat 5 e.g. haiyan will get much deeper inland while maintain cat 5 intensity.

I think a storm with 1 min sustained>300km/h is cat 6.

cat 6= will cause total destruction even if slightly weakened.