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2024 Tropical Atlantic Discussion and Pre-invest thread


MaineJay

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Current view of the Central American Gyre (CAG) which is expected to bring forth a landfalling hurricane or TS.

image.thumb.gif.b3d88506dc2999ab447d9564a297b2ca.gif

 

image.thumb.png.6cefb298c2b65533a8b7e3bc492fe6f4.png

Development may be noticeable on Tuesday per 12z GFS

image.thumb.png.c1cae6ce1d91ae674caf39005183f86e.png

CMC develops it over the Yucatan

image.thumb.png.0ff7f71b0c4b95d92efdecb0b59a827c.png

12z Icon takes a short developed system over the Yucatan

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As does Euro.

floop-ecmwf_full-2024092100.sfcwind_mslp.caribbean.gif.fafb385b274b862fbf9e09ab1d3e88f5.gif

AIFS nicks the Yucatan resulting in a stronger storm.

image.gif.a94e72e16980b7ab611e8e8c59f329f2.gif

Point is that there's a lot to sort out and a couple of days to get a better idea. However, there's not a lot of time from then the center enters the GOM to landfall. All models right now keep it moving which is a good thing.  But if that center does form Tuesday and drifts north instead of over Yucatan, then we have a sizeable storm likely to form. 

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Here's US landfall. It would be nice if they opened an Invest so we could get some hurricane models started on a threat that may be only 4 days away. Tampa to NOLA seem to be in range.

So far GFS has lead on this, AIFS is a step behind and moving that way. Euro way behind but finally is in sync with the GFS. Canadian has been off with the early stages. ICON had been only a step behind the GFS but is a little wacky this morning. Would be a coup if its correct, also a very very bad storm. Keep in mind these globals don't specialize in strength and typically are underdone. So a GFS or ICON in the 940s is alarming.

Helenalandfall9-22.thumb.png.bb181b90c6781d67c80a5d523f2ce981.png

CMC has it making landfall this Thursday afternoon

image.thumb.png.3490c51da30bd7b3f348b40afd805cd6.png

ICON significantly different than CMC with landfall on Sunday morning

image.thumb.png.5f2af07718184b3a3ea25589cae69e22.png 

AIFS is Thursday evening.

image.thumb.png.832dd593e76fe7e59d722aa1d9b1b50f.png 

Euro is early Friday morning

image.thumb.png.098dfda21dbaaff36ff8a34d70c61dcf.png 

GFS Graphcast is Sat morning

image.thumb.png.f477f1b8d74706814d1eed3fc4795ef2.png

GFS is devastating on Thursday evening

image.thumb.png.6cc4fa7b2ed555734f7d426848de7d30.png

Edited by StretchCT
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4 hours ago, StretchCT said:

Here's US landfall. It would be nice if they opened an Invest so we could get some hurricane models started on a threat that may be only 4 days away. Tampa to NOLA seem to be in range.

So far GFS has lead on this, AIFS is a step behind and moving that way. Euro way behind but finally is in sync with the GFS. Canadian has been off with the early stages. ICON had been only a step behind the GFS but is a little wacky this morning. Would be a coup if its correct, also a very very bad storm. Keep in mind these globals don't specialize in strength and typically are underdone. So a GFS or ICON in the 940s is alarming.

Helenalandfall9-22.thumb.png.bb181b90c6781d67c80a5d523f2ce981.png

CMC has it making landfall this Thursday afternoon

image.thumb.png.3490c51da30bd7b3f348b40afd805cd6.png

ICON significantly different than CMC with landfall on Sunday morning

image.thumb.png.5f2af07718184b3a3ea25589cae69e22.png 

AIFS is Thursday evening.

image.thumb.png.832dd593e76fe7e59d722aa1d9b1b50f.png 

Euro is early Friday morning

image.thumb.png.098dfda21dbaaff36ff8a34d70c61dcf.png 

GFS Graphcast is Sat morning

image.thumb.png.f477f1b8d74706814d1eed3fc4795ef2.png

GFS is devastating on Thursday evening

image.thumb.png.6cc4fa7b2ed555734f7d426848de7d30.png

Are you sure about that? ECMWF AI picked up on this potential at least a week ago, see my post from Sept 15 ... Isn't what I described exactly what's happening? 

Edited by StLweatherjunkie
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2 hours ago, StLweatherjunkie said:

Are you sure about that? ECMWF AI picked up on this potential at least a week ago, see my post from Sept 15 ... Isn't what I described exactly what's happening? 

If this does become a substantial storm, the Euro will still hold the record as picking up the strongest storms 7-10 days in advance. 

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9 minutes ago, Undertakerson2.0 said:

Modeling still showing RI potential with 97L (H storm?) 

Comes out just W of Cuba mainland at 991 - then plummets down to 942 at Big Bend of FL on the 6z gfs (today) 

 

I have found it interesting that this area has lower wind design standards than the rest of the Gulf Coast. 

florida-wind-and-wind-borne-debris-building-code-requirements.thumb.jpg.5179eddad0490f43f7a48369e23d87cf.jpg

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