[MikefromOhio]

that still comes out to 155 MPH....

besides they generally use .90 as the multiplier...

[montanus]

besides they generally use .90 as the multiplier...

Yeah, I know, but for whatever reason they ain't doing it this time. I was doing the multiply by .9 thing and was getting it wrong. But then I remembered there being a reason why very strong hurricanes use the .85 multiplier. I don't remember the precise reason why .85 multiplier is used, but it may have something to do with the low pressuring making the standard flight level much lower.

[Knitting A Conundrum]

I read this elsewhere:

"I wonder if the 150 mph figure is based on SFMR. Research has shown that SFMR readings may be unreliable in intense hurricanes. "

I remember they were uncertain of Katrina's surface windspeed because different techniques were giving them different readings...