ATL: GRACE - Models

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SoupBone
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Re: ATL: 95L - Models

#41 Postby SoupBone » Wed Aug 11, 2021 2:34 pm

AxaltaRacing24 wrote:In 2020/2021 modeling, if the Euro even shows a closed low, that’s a sign that something will likely get going.



Did the last Euro just take 95L on a fishing expedition? So much spread so far, but expected this far out.
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Re: ATL: 95L - Models

#42 Postby aspen » Wed Aug 11, 2021 2:53 pm

OP GFS and Euro take this right through the Greater Antilles, while the CMC and ICON go north into the Bahamas, and the HWRF-P has it go south.

While the GFS refuses to show development, it actually has a very favorable environment in 48hr, with the sounding at 15.07N/47.20W showing shear of under 10 kt and 300-850mb RH values of around 90%. This seems like it’ll be a great environment for something to spin up, or intensify if it has already closed off.
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Re: ATL: 95L - Models

#43 Postby tolakram » Wed Aug 11, 2021 2:56 pm

GEFS
Image
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Re: ATL: 95L - Models

#44 Postby hurricane2025 » Wed Aug 11, 2021 2:59 pm

Don’t buy that yet
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Re: ATL: 95L - Models

#45 Postby captainbarbossa19 » Wed Aug 11, 2021 3:24 pm



Many members are taking this into the Caribbean.
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Re: ATL: 95L - Models

#46 Postby Spacecoast » Wed Aug 11, 2021 3:40 pm

12z ECMF. Ensemble mean and Operational looking at Florida.

Image

12z GEFS starting to show some members, but Operational (ANVO) drops @54 hr near 45W
Image
(white is consensus of GEFS + Global)
Image
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Re: ATL: 95L - Models

#47 Postby aspen » Wed Aug 11, 2021 3:52 pm

I really hope we finally get the first HWRF run at 18z. I’m surprised it hasn’t started running with 95L yet; it’s been designated for over a day now.
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Re: ATL: 95L - Models

#48 Postby Cpv17 » Wed Aug 11, 2021 4:32 pm

Spacecoast wrote:12z ECMF. Ensemble mean and Operational looking at Florida.

[url]https://i.ibb.co/PWVSwbF/ecmdj.jpg [/url]

12z GEFS starting to show some members, but Operational (ANVO) drops @54 hr near 45W
[url]https://i.ibb.co/WzhYMzY/ecmdk.jpg [/url]
(white is consensus of GEFS + Global)
[url]https://i.ibb.co/Z2JPTcJ/ecmdl.jpg [/url]


Looks like it wants to take the same track as Fred.
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Re: ATL: 95L - Models

#49 Postby Hurricaneman » Wed Aug 11, 2021 4:36 pm

Cpv17 wrote:
Spacecoast wrote:12z ECMF. Ensemble mean and Operational looking at Florida.

[url]https://i.ibb.co/PWVSwbF/ecmdj.jpg [/url]

12z GEFS starting to show some members, but Operational (ANVO) drops @54 hr near 45W
[url]https://i.ibb.co/WzhYMzY/ecmdk.jpg [/url]
(white is consensus of GEFS + Global)
[url]https://i.ibb.co/Z2JPTcJ/ecmdl.jpg [/url]


Looks like it wants to take the same track as Fred.


If I’m looking at the models the Euro and ensembles have been pretty steady while the GFS and it’s ensembles have been all over the place so my guess is this will be north of Hispaniola and about 30mi north of Fred’s path
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Re: ATL: 95L - Models

#50 Postby aspen » Wed Aug 11, 2021 5:24 pm

18z GFS still keeps this as an open wave despite up to 4 days of favorable conditions before reaching the islands.
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Re: ATL: 95L - Models

#51 Postby aspen » Wed Aug 11, 2021 5:45 pm

HWRF is running for 95L. Let’s see how bonkers this gets.
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Re: ATL: 95L - Models

#52 Postby cycloneye » Wed Aug 11, 2021 6:18 pm

aspen wrote:HWRF is running for 95L. Let’s see how bonkers this gets.


Also running is HMON.
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Re: ATL: 95L - Models

#53 Postby aspen » Wed Aug 11, 2021 6:22 pm

cycloneye wrote:
aspen wrote:HWRF is running for 95L. Let’s see how bonkers this gets.


Also running is HMON.

Both are really struggling to close 95L’s circulation, and I don’t know why. Maybe some dry air from the north keeps getting into it from time to time? The environment otherwise looks favorable, and there are decent moisture pockets in both runs.
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Re: ATL: 95L - Models

#54 Postby aspen » Wed Aug 11, 2021 6:50 pm

No development on the HWRF.
No development on the HMON.
No development on the 18z GFS.

What are these models seeing that prevents this from closing off?
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Re: ATL: 95L - Models

#55 Postby Stormybajan » Wed Aug 11, 2021 7:07 pm

aspen wrote:No development on the HWRF.
No development on the HMON.
No development on the 18z GFS.

What are these models seeing that prevents this from closing off?

I'm thinking models are maybe picking up conditions not being as favorable as we think? Theres a pretty decent SAL outbreak to the north of 95L so maybe that? idk NHC raised chances to 30/60 so they are still expecting development. Maybe Euro will retake its crown if 95L develops east of the islands 8-)
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Re: ATL: 95L - Models

#56 Postby Hugo1989 » Wed Aug 11, 2021 7:46 pm

aspen wrote:No development on the HWRF.
No development on the HMON.
No development on the 18z GFS.

What are these models seeing that prevents this from closing off?


SAL and low MJO phase
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Re: ATL: 95L - Models

#57 Postby BobHarlem » Wed Aug 11, 2021 10:46 pm

0z Icon
Image
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Re: ATL: 95L - Models

#58 Postby AxaltaRacing24 » Wed Aug 11, 2021 10:47 pm

Image
2004? This would be the third Florida landfall if the ICON had its way.
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Re: ATL: 95L - Models

#59 Postby AutoPenalti » Wed Aug 11, 2021 10:48 pm

Conditions aren’t favorable because of drier lower levels, it’s displayed pretty noticeably in the water vapor loops.
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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: ATL: 95L - Models

#60 Postby Cat5James » Wed Aug 11, 2021 10:52 pm

Hugo1989 wrote:
aspen wrote:No development on the HWRF.
No development on the HMON.
No development on the 18z GFS.

What are these models seeing that prevents this from closing off?


SAL and low MJO phase


MJO phase is conducive for development…
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