ATL: ISAAC - Post-Tropical - Discussion

[SunnyThoughts]

First rain coming down here just a few miles east of Pensacola. Very dark and ominous looking outside. Saw on radar feeder band rotating in. Wind probably sustained at 20 gusts to 30 or so Just wanted to report this to show how far out these winds and rain are going to be from the center. Stay safe everybody.

[Chris_in_Tampa]

Surface: 975mb, 4 knots of wind

[Texashawk]

Whatever else is happening with the structure and CDO, the radar center continues to chug along almost due west:

http://www.wunderground.com/radar/radblast.asp?ID=LIX&lat=0&lon=0&label=you&type=L20&zoommode=pan&map.x=400&map.y=240&centerx=400&centery=240&prevzoom=zoom&num=10&delay=15&scale=1&showlabels=1&smooth=0&noclutter=0&showstorms=0&rainsnow=0&lightning=0

[Solaris]

Recon found 974.1 mb ... also Chevron platform with gusts up to 66 kts

http://www.ndbc.noaa.gov/station_page.p ... t=E&tz=STN

Of course, this is a hurricane

[Blinhart]

So the pressure is still dropping, according to Recon. What I think might happen is the slight land interaction might cause some of this high level winds to come down to the base and cause the storm to finally start reacting to the pressure drops, and since he is getting smaller in size than he was this time yesterday, Like I already said, won't be surprise to make him make it to Cat. 2.

[Blinhart]

My question is, since they just did a disco will they wait 2 hours until the 2 pm (central) disco to upgrade him to a hurricane or will they upgrade him right away since he is so close to land.

[Chris_in_Tampa]

High Values AF HDOB 38
Flight (30s): 92 knots
Flight (10s): 94 knots
SFMR Surface (10s): 66 knots

[Jagno]

I just called Allstate and in the state of Louisiana you are not subject to the Hurricane Deductible if the damage occurs and claim is made as a result of a Tropical Storm. Wow, I am really shocked.

[cycloneye]

Here is a very interesting information that CSU Dr Phil Klotzbach has compiled about the Tropical Storms with the lowest pressures.

Phil Klotzbach, a tropical weather researcher at Colorado State University, noted just a handful of tropical storms have had lower pressures than Isaac. The lowest pressure he could find for an Atlantic tropical storm was the 952 mb reading associated with Hilda in 1952 (which had maximum sustained winds around 70 mph).

http://www.washingtonpost.com/blogs/cap ... _blog.html

[Blinhart]

With all those recon SMRF levels over 60 Kts, they have to upgrade this. I think it would be dangerous if they don't.

[Texashawk]

It's a vast insurance conspiracy involving multiple insurers, the NHC, NOAA, the NWS, and the President!!

*tongue is firmly in cheek, don't jump me*

[drezee]

High Values AF HDOB 38
Flight (30s): 92 knots
Flight (10s): 94 knots
SFMR Surface (10s): 66 knots[/size]

Upgrade please, with a side of fries. Based on their previous stance...this should get an update!

[Extratropical94]

Here is a very interesting information that CSU Phil Klotzbach has compiled about the Tropical Storms with the lowest pressures.

Phil Klotzbach, a tropical weather researcher at Colorado State University, noted just a handful of tropical storms have had lower pressures than Isaac. The lowest pressure he could find for an Atlantic tropical storm was the 952 mb reading associated with Hilda in 1952 (which had maximum sustained winds around 70 mph).

http://www.washingtonpost.com/blogs/cap ... _blog.html

But it should be noted that this pressure was recorded after the storm weakened back from cane status to TS status.

[Fyzn94]

So the pressure is still dropping, according to Recon. What I think might happen is the slight land interaction might cause some of this high level winds to come down to the base and cause the storm to finally start reacting to the pressure drops, and since he is getting smaller in size than he was this time yesterday, Like I already said, won't be surprise to make him make it to Cat. 2.

Well, to make it to cat 2, he'd probably have to hit a period of explosive intensification because he's running out of time.....

[Texashawk]

So the pressure is still dropping, according to Recon. What I think might happen is the slight land interaction might cause some of this high level winds to come down to the base and cause the storm to finally start reacting to the pressure drops, and since he is getting smaller in size than he was this time yesterday, Like I already said, won't be surprise to make him make it to Cat. 2.

Well, to make it to cat 2, he'd probably have to hit a period of explosive intensification because he's running out of time.....

If he goes more west than WNW, he'll have both time and warm water.

[FutureEM]

A blend of Flight Level and SFMR is probably going to mean a 80-85mph storm.


_______
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[WxEnthus]

Here is a very interesting information that CSU Dr Phil Klotzbach has compiled about the Tropical Storms with the lowest pressures.

Phil Klotzbach, a tropical weather researcher at Colorado State University, noted just a handful of tropical storms have had lower pressures than Isaac. The lowest pressure he could find for an Atlantic tropical storm was the 952 mb reading associated with Hilda in 1952 (which had maximum sustained winds around 70 mph).

http://www.washingtonpost.com/blogs/cap ... _blog.html

Thanks for that link Cycloneye -- was just wondering about where to find that data!

[Portastorm]

Surface: 975mb, 4 knots of wind

Please put these posts in the recon discussion thread and not here. Thanks!

[WxEnthus]

Here is a very interesting information that CSU Phil Klotzbach has compiled about the Tropical Storms with the lowest pressures.

Phil Klotzbach, a tropical weather researcher at Colorado State University, noted just a handful of tropical storms have had lower pressures than Isaac. The lowest pressure he could find for an Atlantic tropical storm was the 952 mb reading associated with Hilda in 1952 (which had maximum sustained winds around 70 mph).

http://www.washingtonpost.com/blogs/cap ... _blog.html

But it should be noted that this pressure was recorded after the storm weakened back from cane status to TS status.

Ah, yes. I'm looking specifically for pressure from storms *prior* to hurricane status. Issac has to be one of the lowest then...

[KWT]

I think that pretty much ends ANY debate as to whether this is a hurricane or not, I'd say 70-75kts looks to be the likely strength at the moment. Finally winds are starting to catch up with that pressure.