ATL: INVEST 95L - Models

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aspen
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Re: ATL: INVEST 95L - Models

#41 Postby aspen » Fri Jul 21, 2023 1:45 pm

SFLcane wrote:
cycloneye wrote:HAFS-A at 989 mbs south of PR.

https://i.imgur.com/eb7QIKX.png

HAFS-B at 973 mbs south of Mona Channel.

https://i.imgur.com/IbdoN0v.png


Hurricane models really aren't best for invests...it's an interesting piece of info. Global models basically all kill it

The globals seem to be poorly initializing 95L’s convective activity and are probably underestimating it, but the hurricane models are likely over-estimating it. They have a high bias for western MDR/ECar storms, especially the HWRF, which blows this up into a major in the 12z run. I’m leaning towards an intermediate solution verifying where 95L develops into a weak-moderate TS, but doesn’t get stronger than that.
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Re: ATL: INVEST 95L - Models

#42 Postby Nuno » Fri Jul 21, 2023 1:49 pm

abajan wrote:
Blown Away wrote:[url]https://i.postimg.cc/4Nk7sRhR/c3ea8cde-8077-4f7c-b562-117ac004684c.gif [/url]

06z GFS... Some models continue showing this SW dip over next 2-3 days. IMO this SW dip is a critical move that will heavily influence development down the road. The SW dip will likely keep 95L weaker into the Caribbean and S of the big islands, if this dip doesn't happen I think the northern route possibly into better UL conditions may happen?


That's a pretty pronounced dip. The Euro, and CMC (to a lesser extent), shows it too. Can't recall when last I've seen models show anything like that in the MDR east of the Antilles.


Irma and Ike perhaps?
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Re: ATL: INVEST 95L - Models

#43 Postby Kingarabian » Fri Jul 21, 2023 2:00 pm

SFLcane wrote:
cycloneye wrote:HAFS-A at 989 mbs south of PR.

https://i.imgur.com/eb7QIKX.png

HAFS-B at 973 mbs south of Mona Channel.

https://i.imgur.com/IbdoN0v.png


Hurricane models really aren't best for invests...it's an interesting piece of info. Global models basically all kill it


As Aric Dunn likes to say: the models are only as good as the information they have. Can't trust the globals too much when even the GFS initializes very poorly.
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Re: ATL: INVEST 95L - Models

#44 Postby cycloneye » Fri Jul 21, 2023 2:20 pm

SHIP continues to have relativly low shear.

Image
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Re: ATL: INVEST 95L - Models

#45 Postby hurricane2025 » Fri Jul 21, 2023 2:57 pm

Euro ensembles everywhere in gulf
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Re: ATL: INVEST 95L - Models

#46 Postby LarryWx » Fri Jul 21, 2023 3:17 pm

hurricane2025 wrote:Euro ensembles everywhere in gulf


I count 6 H including 3 MH in the Gulf and elsewhere on this run.
Last edited by LarryWx on Fri Jul 21, 2023 4:37 pm, edited 1 time in total.
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Re: ATL: INVEST 95L - Models

#47 Postby BobHarlem » Fri Jul 21, 2023 3:52 pm

18z early runs
Image

Image
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Re: ATL: INVEST 95L - Models

#48 Postby Blown Away » Fri Jul 21, 2023 4:13 pm



The HAFS are separating from the cluster and like a strong system moving towards the big islands.
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Re: ATL: INVEST 95L - Models

#49 Postby abk_0710 » Fri Jul 21, 2023 4:24 pm

hurricane2025 wrote:Euro ensembles everywhere in gulf


Can you post this image please?
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Re: ATL: INVEST 95L - Models

#50 Postby Blown Away » Fri Jul 21, 2023 4:36 pm

hurricane2025 wrote:Euro ensembles everywhere in gulf


Image
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Re: ATL: INVEST 95L - Models

#51 Postby Iceresistance » Fri Jul 21, 2023 4:48 pm



What is with the 18z HWFI?
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Re: ATL: INVEST 95L - Models

#52 Postby JetFuel_SE » Fri Jul 21, 2023 6:03 pm

Iceresistance wrote:


What is with the 18z HWFI?

The models ending with an I aren't really actual real models, It's using the outputs from the 12z runs, but interpolated 6 hours forwards.
The actual 18z runs will almost certainly be different.
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Re: ATL: INVEST 95L - Models

#53 Postby Hypercane_Kyle » Fri Jul 21, 2023 6:13 pm

It's hilarious how bad the HWRF sucks at small, poorly defined invests like this. This will not be a Cat 3 in 5 days.
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Re: ATL: INVEST 95L - Models

#54 Postby Spacecoast » Fri Jul 21, 2023 6:40 pm

18z GEFS: One lonely member
Image
Image
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Re: ATL: INVEST 95L - Models

#55 Postby Blown Away » Fri Jul 21, 2023 7:13 pm

Hard not to think 95L’s life won’t be short lived based on models, but the NHC continues to increase development odds. I gotta think the only way 95L has a chance is to get near or N of the big islands where it appears the UL environment is good. I do think the GFS & Euro showing little to no development through 5-7 days has skewed the model suite tracks S into the E Caribbean graveyard.
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Re: ATL: INVEST 95L - Models

#56 Postby zzzh » Fri Jul 21, 2023 8:32 pm

18Z eps much weaker.
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Re: ATL: INVEST 95L - Models

#57 Postby gatorcane » Fri Jul 21, 2023 9:04 pm

It looks like the 12Z Euro long-range hints at development of 95l once it gets into the EPAC. Conditions look very favorable there:

Image
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Re: ATL: INVEST 95L - Models

#58 Postby Teban54 » Sat Jul 22, 2023 2:27 am

It appears that most, if not all, models became a lot more bearish since 18z, despite the continued organization. I have no idea why.

GFS ensembles essentially drop it now, and so do all 4 hurricane models (which might be because they're based on GFS). 0z EC ensembles dropped support even further (if anything, seems to pick up the idea of it developing in the Caribbean). Intensity guidance also weaker and slower.
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Re: ATL: INVEST 95L - Models

#59 Postby jasons2k » Sat Jul 22, 2023 10:25 am

Not surprising the weaker solutions stay south.

Watching this one closely. I'm not expecting much until/IF it reaches the Gulf, but if it gets there, it could be trouble.
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Re: ATL: INVEST 95L - Models

#60 Postby Cpv17 » Sat Jul 22, 2023 10:54 am

jasons2k wrote:Not surprising the weaker solutions stay south.

Watching this one closely. I'm not expecting much until/IF it reaches the Gulf, but if it gets there, it could be trouble.


Yeah, my money is on it crossing over into the EPAC but if it can make it to the NW Caribbean with any sort of heartbeat, then the Gulf Coast should be on alert.
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