NATL: MELISSA - Models

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Cachondo23
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Re: NATL: MELISSA - Tropical Storm - Discussion

#161 Postby Cachondo23 » Tue Oct 21, 2025 5:51 pm

Kazmit wrote:
GCANE wrote:Chances going down quickly for a hit on Haiti.
Majority has a path to the West Carib

https://rammb-data.cira.colostate.edu/t ... 211800.png

https://rammb-data.cira.colostate.edu/t ... 210600.png

And yet, the 18z GFS has a DR landfall. :lol:

At the beginning of the models, it was a love/hate situation with PR now is DR!
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Re: NATL: MELISSA - Models

#162 Postby zzzh » Tue Oct 21, 2025 6:31 pm

18z ECAI trended way stronger. It's been the worst model for this system along with GFS.
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Re: NATL: MELISSA - Models

#163 Postby aspen » Tue Oct 21, 2025 7:00 pm

All four hurricane models have trended weaker and more SW in the short-term. The HWRF has trended less so and is still comparable to the GFS, but it’s still noticeable.

HMON stalls and RIs just south of Jamaica. Very scary if that pans out.

HAFS-A/B start intensifying a little further away from Jamaica than the HMON.
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Re: NATL: MELISSA - Models

#164 Postby SFLcane » Tue Oct 21, 2025 7:12 pm

aspen wrote:All four hurricane models have trended weaker and more SW in the short-term. The HWRF has trended less so and is still comparable to the GFS, but it’s still noticeable.

HMON stalls and RIs just south of Jamaica. Very scary if that pans out.

HAFS-A/B start intensifying a little further away from Jamaica than the HMON.


No stall on the HMON it continues on a W/WSW course south of Jamaica.

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Re: NATL: MELISSA - Models

#165 Postby SFLcane » Tue Oct 21, 2025 7:20 pm

18z Hafs-b.. see ya Jamaica.

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Re: NATL: MELISSA - Models

#166 Postby SFLcane » Tue Oct 21, 2025 7:23 pm

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Re: NATL: MELISSA - Models

#167 Postby WaveBreaking » Tue Oct 21, 2025 7:25 pm

Nothing is obviously set in stone rn but I can’t see a possibility where Melissa doesn’t bomb out in the environment the HAFS models are showing unless convection never fires over the LLC again for some reason.

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Re: NATL: MELISSA - Models

#168 Postby Hurricane2022 » Tue Oct 21, 2025 7:55 pm

WaveBreaking wrote:Nothing is obviously set in stone rn but I can’t see a possibility where Melissa doesn’t bomb out in the environment the HAFS models are showing unless convection never fires over the LLC again for some reason.

https://i.imgur.com/yHLF3Kt.png
https://i.imgur.com/18DFG6J.png
https://i.imgur.com/137i1jc.png
https://i.imgur.com/mRztpEs.png

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This environment would very easily take Melissa to the highest level of Atlantic hurricanes. There we have more than enough time for the system to rival historic hurricanes like Three '33, Gilbert '88, and Wilma '05, as well as cyclones from other basins, such as Hagibis '19, Jova '23, Olaf '05, and so on.

If it weren’t for the immense uncertainty about its future path, I would have no problem saying that I would expect Melissa to become a record-breaking hurricane.
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Re: NATL: MELISSA - Models

#169 Postby Iceresistance » Tue Oct 21, 2025 8:03 pm

Well, the FNV3 is back at it again with insane runs, like this 887 mb member on this 18z
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https://s12.gifyu.com/images/b397b.png
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Re: NATL: MELISSA - Models

#170 Postby Hurricane2022 » Tue Oct 21, 2025 8:04 pm

One of the things I enjoy most about hurricane forecasting is looking at the IR simulation from the HAFS-A and B models.
It's always wonderful to see how the tropical cyclones are almost perfectly drawn on these maps
ImageImage
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Re: NATL: MELISSA - Models

#171 Postby ronjon » Tue Oct 21, 2025 8:08 pm

The HAFS models show a signicant hurricane on a W-SW course approaching 80W longitude near 14N in 5 days. I don't have tell anyone what longitude Miami sits at. Now future troughs will likely steer it NE but the further west it gets will determine how close it gets to the keys and S FL.
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Re: NATL: MELISSA - Models

#172 Postby Hurricane2022 » Tue Oct 21, 2025 8:21 pm

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Re: NATL: MELISSA - Models

#173 Postby Keldeo1997 » Tue Oct 21, 2025 8:46 pm

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Re: NATL: MELISSA - Models

#174 Postby SFLcane » Tue Oct 21, 2025 9:00 pm

Its think its pretty safe to say at this point the gfs is WRONG !

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Re: NATL: MELISSA - Models

#175 Postby SFLcane » Tue Oct 21, 2025 9:07 pm

ronjon wrote:The HAFS models show a signicant hurricane on a W-SW course approaching 80W longitude near 14N in 5 days. I don't have tell anyone what longitude Miami sits at. Now future troughs will likely steer it NE but the further west it gets will determine how close it gets to the keys and S FL.


Image

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Re: NATL: MELISSA - Models

#176 Postby blp » Tue Oct 21, 2025 9:25 pm

SFLcane wrote:
ronjon wrote:The HAFS models show a signicant hurricane on a W-SW course approaching 80W longitude near 14N in 5 days. I don't have tell anyone what longitude Miami sits at. Now future troughs will likely steer it NE but the further west it gets will determine how close it gets to the keys and S FL.


https://i.imgur.com/HIon03t.png

https://i.imgur.com/BOczOQd.jpeg


Trend on HCCA. :eek:

Image
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Re: NATL: MELISSA - Models

#177 Postby USTropics » Tue Oct 21, 2025 9:30 pm

SFLcane wrote:Its think its pretty safe to say at this point the gfs is WRONG !

https://i.imgur.com/1xEgE2L.jpeg


Name a more iconic duo than the GFS model and missing Caribbean tropical cyclone forecasts — I’ll wait. :spam:

The ECMWF has had a decent handle on this in conjunction with Google DeepMind ensembles. I would hedge there (they are closely aligned with the HCCA consensus model as well).
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Re: NATL: MELISSA - Models

#178 Postby Teban54 » Tue Oct 21, 2025 9:33 pm

USTropics wrote:
SFLcane wrote:Its think its pretty safe to say at this point the gfs is WRONG !

https://i.imgur.com/1xEgE2L.jpeg


Name a more iconic duo than the GFS model and missing Caribbean tropical cyclone forecasts — I’ll wait. :spam:

The ECMWF has had a decent handle on this in conjunction with Google DeepMind ensembles. I would hedge there (they are closely aligned with the HCCA consensus model as well).

A possible explanation:
 https://x.com/webberweather/status/1980810036294426797

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Re: NATL: MELISSA - Models

#179 Postby BobHarlem » Tue Oct 21, 2025 10:24 pm

0z Icon is devastating for Jamaica (both long duration impacts and rain) Rain especially bad on the eastern half of the island.
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Re: NATL: MELISSA - Models

#180 Postby Fancy1002 » Tue Oct 21, 2025 11:24 pm

It’s stuff like what the CMC is doing. That makes me think south Florida isn’t out of the woodwork.
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