| Unregistered User |
| (Unregistered) |
| Sat Jul 23 2005 01:26 PM |
Re: OT, but weather relevant.
|
Quote:
At 1001mb? This is kind of interesting. In the short time I've been here I've seen the pressure go down and the winds catching up later, but haven't seen the winds increase before the pressure drops.
What is the typical range for pressures for a Cat 1?
<delurk>
Not sure, but it is lower than that. I can find pressure info easily, but 99% of the sites don't make the distinction between Atlantic and Pacific pressures. In the Pacific pressures tend to be (as I recall) 10+ mb lower for the same wind speed, so I don't know which these sites are reporting. See http://en.wikipedia.org/wiki/Saffir-Simpson_Hurricane_Scale for a nice chart that doesn't distinguish between Atlantic and Pacific presures.
Anyway, as for pressure, I've noticed that both Dennis and Emily seemed to hit categories based on wind speeds well before their pressure caught up. Since Shanna mentioned that the importance is the relative pressure, could it be that we have overall higher pressure in this part of the Atlantic this year than usual? I don't have a source of historical data so I don't know - just a guess though
</delurk>