Floydbuster's 11th Jeanne forecast...

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Floydbuster's 11th Jeanne forecast...

#1 Postby Anonymous » Fri Sep 24, 2004 5:13 am

Hurricane Jeanne Forecast # 11
Friday September 24, 2004 6am
Mike "Floydbuster" Naso
DISCLAIMER: USE NHC for OFFICAL INFO

Jeanne has weakened slightly to 100 mph, but is still a dangerous category 2 hurricane. I expect strengthening to begin again in the next 24 hours....

The movement is just about due west at 8 mph. I expect this motion to continue, since we have strong high pressure built to the north. I expect that track to stay until landfall in Florida in roughly 50-70 hours time. Then, as the anti-cyclone elongates, I expect a gradual turn northwest, and then north and even northeast though out 120 hours. However, after landfall in Florida, I expect the center of the hurricane to stay inland, and not re-emerge over the Atlantic ocean.

As for intensity, Jeanne has upwelled herself a bit while spinning in an anti-cyclonic loop. Therefore, I expect status-quo for the next 6-12 hours or so. After that, I feel that the upper level winds will be favorable for development. Also, the waters that Jeanne has upwelled are currently 78-81F. As she moves west, waters are expected to be 83-86F. Therefore, I expect Jeanne to become a rather modest category 3 storm. I have it becoming a category 3 in 36 hours, and then rapidly intensifying into a modest category 3 right before landfall. Keep in mind, Jeanne may strengthen quicker than we expect, and if it passes a warm water eddy, or rapidly coils up, it could actually be a category 4 hurricane. However, at this time, I do not expect that. Nevertheless, I do expect a major hurricane landfall in Florida. (WHAT ELSE IS NEW?)

12 HRS-- 26.1 N---73.0 W-- 85 kt
24 HRS-- 26.2 N-- 75.0 W-- 95 kt
36 HRS-- 26.3 N-- 76.8 W-- 100 kt
48 HRS-- 26.8 N-- 78.9 W-- 110 kt
72 HRS-- 27.8 N-- 81.1 W-- 90 kt (INLAND)
96 HRS-- 32.0 N-- 81.8 W-- 60 kt (INLAND)
120 HRS- 36.2 N-- 78.0 W-- 40 kt (INLAND)

Image
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#2 Postby yoda » Fri Sep 24, 2004 5:16 am

Good track and discussion... but I disagree with the winds... no chance this makes a Cat 4... the SSTs don't support THAT huge of a RIC.... max winds would be 115... and just so you know NHC has winds 100 kts at highest... I think you are a way overdone on windspeed.

Also, IMO your track is too far west... and landfall will be a bit more north of where you have it...

I am not criticizing you... just pointing out what I see and think.
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#3 Postby ColdFront77 » Fri Sep 24, 2004 5:19 am

A Category 4 hurricane has maximum sustained winds of 114 to 135 knots (131 to 155 mph), not 110 knots/127 mph.
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#4 Postby Anonymous » Fri Sep 24, 2004 5:21 am

I TAKE IT TO A STRONG CATEGORY 3... 110 kt or 125 mph.
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#5 Postby yoda » Fri Sep 24, 2004 5:23 am

~Floydbuster wrote:I TAKE IT TO A STRONG CATEGORY 3... 110 kt or 125 mph.


Why? SSTs are 85 degrees, which would support a strengthening hurricane. Upwelling will take a while... I don't understand how this becomes 125 mph. No chance IMO unless you can explain how you come up with that. This will be a CAT 2 at landfall with sustained winds of 110 mph.
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#6 Postby LadyStorm » Fri Sep 24, 2004 5:24 am

Merritt Island 100 mph Sunday morning. Taking I95 north and exiting to the Atlantic in Palm Coast.

MaryAnn




yoda wrote:Good track and discussion... but I disagree with the winds... no chance this makes a Cat 4... the SSTs don't support THAT huge of a RIC.... max winds would be 115... and just so you know NHC has winds 100 kts at highest... I think you are a way overdone on windspeed.

Also, IMO your track is too far west... and landfall will be a bit more north of where you have it...

I am not criticizing you... just pointing out what I see and think.
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#7 Postby yoda » Fri Sep 24, 2004 5:25 am

LadyStorm wrote:Merritt Island 100 mph Sunday morning. Taking I95 north and exiting to the Atlantic in Palm Coast.

MaryAnn




yoda wrote:Good track and discussion... but I disagree with the winds... no chance this makes a Cat 4... the SSTs don't support THAT huge of a RIC.... max winds would be 115... and just so you know NHC has winds 100 kts at highest... I think you are a way overdone on windspeed.

Also, IMO your track is too far west... and landfall will be a bit more north of where you have it...

I am not criticizing you... just pointing out what I see and think.


Is that your forecast MaryAnn? Where is Merrit Island, BTW?
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#8 Postby LadyStorm » Fri Sep 24, 2004 5:31 am

Near Cocoa Beach, Kennedy Space Center, Brevard County if that helps. Thats my forcast yes. My first one, so lets see where this goes.

Is that your forecast MaryAnn? Where is Merrit Island, BTW?[/quote]
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#9 Postby yoda » Fri Sep 24, 2004 5:32 am

LadyStorm wrote:Near Cocoa Beach, Kennedy Space Center, Brevard County if that helps. Thats my forcast yes. My first one, so lets see where this goes.

Is that your forecast MaryAnn? Where is Merrit Island, BTW?
[/quote]

Ah ok... well we shall see and good luck on your forecast!
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#10 Postby jlauderdal » Fri Sep 24, 2004 5:34 am

yoda wrote:
~Floydbuster wrote:I TAKE IT TO A STRONG CATEGORY 3... 110 kt or 125 mph.


Why? SSTs are 85 degrees, which would support a strengthening hurricane. Upwelling will take a while... I don't understand how this becomes 125 mph. No chance IMO unless you can explain how you come up with that. This will be a CAT 2 at landfall with sustained winds of 110 mph.


the trip over the gulfstream with little shear which is forecast will support a 4..do i think it will happen, no..could it, yes
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#11 Postby ColdFront77 » Fri Sep 24, 2004 5:37 am

Merritt Island is 45 to 50 miles long, if I used the appropriate points for both ends of the island.
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#12 Postby jlauderdal » Fri Sep 24, 2004 5:39 am

ColdFront77 wrote:Merritt Island is 45 to 50 miles long, if I used the appropriate points for both ends of the island.


that could be the whole cone of error..lol
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#13 Postby yoda » Fri Sep 24, 2004 5:43 am

jlauderdal wrote:
yoda wrote:
~Floydbuster wrote:I TAKE IT TO A STRONG CATEGORY 3... 110 kt or 125 mph.


Why? SSTs are 85 degrees, which would support a strengthening hurricane. Upwelling will take a while... I don't understand how this becomes 125 mph. No chance IMO unless you can explain how you come up with that. This will be a CAT 2 at landfall with sustained winds of 110 mph.


the trip over the gulfstream with little shear which is forecast will support a 4..do i think it will happen, no..could it, yes


Its not THAT warm...

http://www.weatherimages.org/data/imag142.html

Its only 84 degrees... and there is no eddy there. And yes, there is somes shear... 20kts of it.

http://cimss.ssec.wisc.edu/tropic/real- ... 8shrZ.html
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#14 Postby hiflyer » Fri Sep 24, 2004 6:01 am

windspeed showed me a link yesterday on surface temps along with depth which gives a pretty good picture of what potential for energy is out there....http://www.aoml.noaa.gov/phod/ ... ta/ca.html Wish I could see this image about 36hrs prior Andrew landfall and compare.

FB nice job on the forecast...and of course people disagree...that's what makes horse racing...grin! With NoGaps at 00Z UKMet at 0545Z holding hands on the west side and GFDL at 0531Z on the east side I think we got a pretty big field of play still considering the time left...
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#15 Postby yoda » Fri Sep 24, 2004 6:05 am

hiflyer wrote:windspeed showed me a link yesterday on surface temps along with depth which gives a pretty good picture of what potential for energy is out there....http://www.aoml.noaa.gov/phod/ ... ta/ca.html Wish I could see this image about 36hrs prior Andrew landfall and compare.

FB nice job on the forecast...and of course people disagree...that's what makes horse racing...grin! With NoGaps at 00Z UKMet at 0545Z holding hands on the west side and GFDL at 0531Z on the east side I think we got a pretty big field of play still considering the time left...


Don't forget that the GFDL is now "golden", as it is w/in its 60 hour window... I'll take a GFS/ECMWF/CMC/Candaian blend as my forecast.

Yeah, but look at it. The biggest TCHP is in the SW BAHAMAS.. and Jeanne is not going there.. even if it heads due west.. TCHP is only 50 kJ.... which is not that high for RIC's or Cat 3 canes.

Also, Jeanne is forecast to go WNW soon.. so it will move away from the 50 kJ of TCHP...

P.S. The NOGAPS is a trendsetter, but is usually far west with tracks as seen with Ivan and Frances.
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#16 Postby Derek Ortt » Fri Sep 24, 2004 6:13 am

there is almost no chance of a WNW track continuing for any more than the next 90 mins. Look at the northerly surge on WV about to whack the storm.

no real turn will occur ebfore 79W, and the way it is looking this morning, possibly before 80W
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#17 Postby SeaBrz_FL » Fri Sep 24, 2004 6:13 am

Nice forecast, Floydbuster, although it does move her right over my evacuation hotel. :roll:

Mary Ann -- Merritt Island will never be a landfall point for any hurricane. Storms must first cross beach barrier islands (Sebastion, Melbourne Beach, Satellite Beach, Cocoa Beach, etc) to get there.
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#18 Postby yoda » Fri Sep 24, 2004 6:16 am

Derek Ortt wrote:there is almost no chance of a WNW track continuing for any more than the next 90 mins. Look at the northerly surge on WV about to whack the storm.

no real turn will occur ebfore 79W, and the way it is looking this morning, possibly before 80W


But if it does that it has 20 kts of shear to deal with to its SW if its still there...

http://cimss.ssec.wisc.edu/tropic/real- ... g8shr.html
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#19 Postby Derek Ortt » Fri Sep 24, 2004 6:31 am

not really,

that shear probably wont affect the storm until about 72 hours, AFTER it makes landfall
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#20 Postby yoda » Fri Sep 24, 2004 6:32 am

Ok.... but what about the high to Jeanne's NE? That would play a big role in when she turns WNW, NW, and N right?

So.. you're telling me this: You are taking the UKMET/NOGAPS and whatever other models (the ones I don't know) that take it over FL? Am I right? I am just wondering.

I take a broad consensus of the GFS/GFDL/ECMWF/CMC/Canadian models...
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