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2024 Tropical Atlantic Discussion and Pre-invest thread


MaineJay

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Posted (edited)

50% chance now. GFS doesn't develop in today's 0z or 6z runs.  Euro, CMC, ICON, JMA all still have it.

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6z GFS Graphcast is on board.  Which has me curious about the GFS reluctance. 

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6z ECMW AIFS has a twofer

floop-ecmwf_aifs-2024072900.sfcwind_mslp_atl.gif.3b2d3f2df18040570280fed36c20747a.gif

Euro ens members look good up to this point, then they go everywhere

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Edited by StretchCT
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The National Hurricane Center is monitoring a disturbance across the western tropical Atlantic with a 50 percent chance of tropical cyclone development in the next 7-days. Many ensemble members of the GEFS and ECENS depict a recurving track near or off the U.S. East Coast late in week-1 into early week-2, although there are some outliers that enter the Gulf of Mexico. Given the current projection of the system recurving with many members remaining too far offshore for direct impacts, slight risks of heavy precipitation and high winds are designated only for the immediate East Coast for Aug 6-8, with any impacts dependent on how close the system gets to the coast. This system may also contribute to enhancing the northerly flow pattern and dry air advection across the eastern CONUS in week-2 further helping to moderate excessive heat. -- CPC

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Saw preliminary runs of the Euro and watched the cyclone near the eastern seaboard with other low pressure systems nearby. If any of that happens, never know how they'll interact.

 

Of course, this is all playing out when I'm planning my toddler's birthday party. Just one more bit of stress, right?

Edited by LiveWire_13
Fixed tense
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Rundown of the GFS, various euros, CMC and UKMET.  Solutions range from Houston to Big Bend to out to sea (ots).  I think what's holding back the Euro is that it tries to organize over Florida. 

 

 

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43 minutes ago, StretchCT said:

Rundown of the GFS, various euros, CMC and UKMET.  Solutions range from Houston to Big Bend to out to sea (ots).  I think what's holding back the Euro is that it tries to organize over Florida. 

 

 

So I see the Euro (ECMWF) is at odds with its younger brother (AIFS).  Older doesn't show much of a formation of a tropical cyclone.  AIFS shows a good formation.  Definitely these two are like family, can't agree.  

GFS shows the cyclone forming, going through Texas into New Mexico.

GFS must be the crazy uncle who is drunk and his 2 nephews (the Euros) can't agree on anything.

Must make for a heck of a Thanksgiving with those 3.

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Euro/EuroAI/GFS/ICON/CMC - all in big bend at some point, but beyond that, they diverge greatly. 

image.thumb.png.d63bf02ec9098892eeea4806869f0d22.png image.thumb.png.9a944b982cd05abeb6058b38a623e92f.png

image.thumb.png.0c7fd315c9471a628eadcf847f044388.png

image.thumb.png.9d63fca5fd3006dff9b4358ddd132446.png

image.thumb.png.31e260c963557593dd59dc3915917b2f.png Ukie further west

image.thumb.png.fd59406d9f43561d4307d2634bd536c7.png

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Posted (edited)

Invest 97L is underway.  While this one seems certain to form, I'd prefer to wait until its PTC or TD to start a thread.   Nothing like having a list of dead invest threads in the tropical section. 

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I'll add to the comment above that the nhc is still saying 60% for formation

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image.thumb.png.64a6556f546aeabf4783d145e933e524.png

Edited by StretchCT
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4 minutes ago, StretchCT said:

Invest 97L is underway.  While this one seems certain to form, I'd prefer to wait until its PTC or TD to start a thread.   Nothing like having a list of dead invest threads in the tropical section. 

97L_gefs_latest.thumb.png.17b1a33ed5cd12cf37666c3232e2b7e1.pngimage.png.6cf4c517e3602ac5378ac1cdddf3f253.png

 

Definitely has my eye, hoping for a change in the models and we get an OTS trend.

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3 hours ago, ak9971 said:

Definitely has my eye, hoping for a change in the models and we get an OTS trend.

I'd rather it get caught up in a nice mid-lat trough. It's not overly strong and we sure could use the rain. 

 

image.thumb.png.885bbf4707facf7b0c90e38e9ea116dc.png

Edited by Undertakerson2.0
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