NDG wrote:Crazy that the pressure dropped 7 mb in just one and half hours. Just crazy!
Yep it's insane. I don't have a table of all hurricanes, but if I recall correctly Wilma had an average intensification rate of 4 mb/hr over a period of 24 hours with a peak of 9 mb/hr. With 7 mb/hr Helene is now even more extreme than Wilma's 24 hour deepening and approaching the all-time short-term intensification record of 9 mb/hr. She may have struggled for a while, but she's putting up quite a show now.