NATL: MELISSA - Models

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ronjon
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Re: NATL: MELISSA - Models

#221 Postby ronjon » Wed Oct 22, 2025 9:57 am



Blp, are those all possible ensemble runs for one time period or do they represent HCCA tracks from different periods. Or maybe a better question is what models are part of the HCCA consensus?
Last edited by ronjon on Wed Oct 22, 2025 9:59 am, edited 1 time in total.
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Re: NATL: MELISSA - Models

#222 Postby AutoPenalti » Wed Oct 22, 2025 9:58 am

ronjon wrote:


Blp, are those all possible ensemble runs for one time period or do they represent HCAA tracks from different periods. Or maybe a better question is what models are part of the HCAA consensus?

It's tracks from older time periods to the most current.
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Re: NATL: MELISSA - Models

#223 Postby caneseddy » Wed Oct 22, 2025 10:05 am

AutoPenalti wrote:
ronjon wrote:


Blp, are those all possible ensemble runs for one time period or do they represent HCAA tracks from different periods. Or maybe a better question is what models are part of the HCAA consensus?

It's tracks from older time periods to the most current.


I'm assuming the red line would be the most current based on trends?
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Re: NATL: MELISSA - Models

#224 Postby SFLcane » Wed Oct 22, 2025 10:09 am



Should head NE-ENE from that point across Cuba. Nothing is ever certain but I think the door is pretty much closed for anything trying to sneak through yucatan channel which could potentially threaten SFL.
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Re: NATL: MELISSA - Models

#225 Postby SFLcane » Wed Oct 22, 2025 10:10 am

caneseddy wrote:
AutoPenalti wrote:
ronjon wrote:
Blp, are those all possible ensemble runs for one time period or do they represent HCAA tracks from different periods. Or maybe a better question is what models are part of the HCAA consensus?

It's tracks from older time periods to the most current.


I'm assuming the red line would be the most current based on trends?


That is correct.
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Re: NATL: MELISSA - Models

#226 Postby AutoPenalti » Wed Oct 22, 2025 10:12 am

caneseddy wrote:
AutoPenalti wrote:
ronjon wrote:
Blp, are those all possible ensemble runs for one time period or do they represent HCAA tracks from different periods. Or maybe a better question is what models are part of the HCAA consensus?

It's tracks from older time periods to the most current.


I'm assuming the red line would be the most current based on trends?

Correct. It filters through bias from in-house and operational models and uses the HWRF as the driving dynamical model TC Intensity Guidance
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Model Runs Cheat Sheet:
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Re: NATL: MELISSA - Models

#227 Postby BobHarlem » Wed Oct 22, 2025 10:17 am

12z icon again wrecks Jamaica (Right front quad along the southern part of the island, including Kingston)

Image
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Re: NATL: MELISSA - Models

#228 Postby xironman » Wed Oct 22, 2025 10:19 am

SFLcane wrote:


Should head NE-ENE from that point across Cuba. Nothing is ever certain but I think the door is pretty much closed for anything trying to sneak through yucatan channel which could potentially threaten SFL.


The 500mb pattern at that time is not set in stone.
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Re: NATL: MELISSA - Models

#229 Postby AutoPenalti » Wed Oct 22, 2025 10:24 am

SFLcane wrote:


Should head NE-ENE from that point across Cuba. Nothing is ever certain but I think the door is pretty much closed for anything trying to sneak through yucatan channel which could potentially threaten SFL.

Should but the synoptic set up is not set in stone, if anything recent Euro trends indicate the trough retrograding further north. The longer this stays south and west, the more time it will take for models to get a pattern set up.
Last edited by AutoPenalti on Wed Oct 22, 2025 10:25 am, edited 1 time in total.
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Model Runs Cheat Sheet:
GFS (5:30 AM/PM, 11:30 AM/PM)
HWRF, GFDL, UKMET, NAVGEM (6:30-8:00 AM/PM, 12:30-2:00 AM/PM)
ECMWF (1:45 AM/PM)

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Re: NATL: MELISSA - Models

#230 Postby SFLcane » Wed Oct 22, 2025 10:25 am

xironman wrote:
SFLcane wrote:


Should head NE-ENE from that point across Cuba. Nothing is ever certain but I think the door is pretty much closed for anything trying to sneak through yucatan channel which could potentially threaten SFL.


The 500mb pattern at that time is not set in stone.


The 500mb pattern is pretty much in our favor across the peninsula hence not 1 ensemble brings over the state. Never like to make bold statements with a storm to our south in oct but unless something changes i feel pretty good saying we should be good here.

Image

Image
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Re: NATL: MELISSA - Models

#231 Postby Fancy1002 » Wed Oct 22, 2025 10:37 am

SFLcane wrote:
xironman wrote:
SFLcane wrote:
Should head NE-ENE from that point across Cuba. Nothing is ever certain but I think the door is pretty much closed for anything trying to sneak through yucatan channel which could potentially threaten SFL.


The 500mb pattern at that time is not set in stone.


The 500mb pattern is pretty much in our favor across the peninsula hence not 1 ensemble brings over the state. Never like to make bold statements with a storm to our south in oct but unless something changes i feel pretty good saying we should be good here.

https://i.postimg.cc/6Qk1x3Kj/vvvv.png

https://i.postimg.cc/52Rfvw5F/vvv.png

I see a few of those ensemble heading up to the northeast.
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Re: NATL: MELISSA - Models

#232 Postby SFLcane » Wed Oct 22, 2025 10:41 am

Fancy1002 wrote:
SFLcane wrote:
xironman wrote:
The 500mb pattern at that time is not set in stone.


The 500mb pattern is pretty much in our favor across the peninsula hence not 1 ensemble brings over the state. Never like to make bold statements with a storm to our south in oct but unless something changes i feel pretty good saying we should be good here.

https://i.postimg.cc/6Qk1x3Kj/vvvv.png

https://i.postimg.cc/52Rfvw5F/vvv.png

I see a few of those ensemble heading up to the northeast.


A handful not very likely at all.
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Re: NATL: MELISSA - Models

#233 Postby boca » Wed Oct 22, 2025 10:52 am

I wouldn’t rule out Florida yet the further west Melissa travels the more in play Florida is before the NE turn and the set up is changing every day it seems like.
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Re: NATL: MELISSA - Models

#234 Postby CrazyC83 » Wed Oct 22, 2025 10:58 am



Never say never. Wilma nearly got to such.
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Re: NATL: MELISSA - Models

#235 Postby BobHarlem » Wed Oct 22, 2025 10:58 am

boca wrote:I wouldn’t rule out Florida yet the further west Melissa travels the more in play Florida is before the NE turn and the set up is changing every day it seems like.

Extremely unlikely looking at the pwat and continental US frontal setup It would have to get to the northern tip of the Yucatan to do that. It's more likely to plough into Central America than get to florida. Cayman islands, Cuba/Bahamas perhaps.
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Re: NATL: MELISSA - Models

#236 Postby Travorum » Wed Oct 22, 2025 11:06 am

The 06z experimental HAFS-B run was... something to say the least. Basically an Atlantic Patricia:

ImageImage
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Re: NATL: MELISSA - Models

#237 Postby SFLcane » Wed Oct 22, 2025 11:11 am

BobHarlem wrote:
boca wrote:I wouldn’t rule out Florida yet the further west Melissa travels the more in play Florida is before the NE turn and the set up is changing every day it seems like.

Extremely unlikely looking at the pwat and continental US frontal setup It would have to get to the northern tip of the Yucatan to do that. It's more likely to plough into Central America than get to florida. Cayman islands, Cuba/Bahamas perhaps.


Shear is howling across the gulf and florida with the jetstream now drapped accross the area.

Image

Image
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Re: NATL: MELISSA - Models

#238 Postby DESTRUCTION5 » Wed Oct 22, 2025 11:12 am

12z GFS continues its out to lunch solution with a NE turn basically starting now.
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NATL: MELISSA - Tropical Storm - Discussion

#239 Postby Travorum » Wed Oct 22, 2025 11:15 am

The NOAA G-IV is doing a synoptic training mission around Melissa right now, hopefully some dropsonde data can be collected to feed into the models.
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Re: NATL: MELISSA - Models

#240 Postby Fancy1002 » Wed Oct 22, 2025 11:19 am

Gotta give it to both the GFS and the UKMET for their consistency, even if they end up being dead wrong.
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