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2023 Tropical Atlantic Discussion and Pre-invest thread


StretchCT

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Looks like bumper cars out there.  And Invest 94L is also at least a depression and the 6z gfs has a serious system brushing or crushing everything along the Atlantic (from orange hashed bubble)

image.thumb.png.3ca10d679d970e8d7eecc247e9d7c680.png gfs_mslp_pcpn_atl_fh156-384.thumb.gif.f6866a617b5147225c4866d356a7690d.gif

Edited by StretchCT
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10 minutes ago, StretchCT said:

Looks like bumper cars out there.  And Invest 94L is also at least a depression and the 6z gfs has a serious system brushing or crushing everything along the Atlantic (from orange hashed bubble)

image.thumb.png.3ca10d679d970e8d7eecc247e9d7c680.png gfs_mslp_pcpn_atl_fh156-384.thumb.gif.f6866a617b5147225c4866d356a7690d.gif

7xoxcw.jpg.22ecd782573f27bbb106e1c56bfba34f.jpg

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54 minutes ago, StretchCT said:

Looks like bumper cars out there.  And Invest 94L is also at least a depression and the 6z gfs has a serious system brushing or crushing everything along the Atlantic (from orange hashed bubble)

image.thumb.png.3ca10d679d970e8d7eecc247e9d7c680.png gfs_mslp_pcpn_atl_fh156-384.thumb.gif.f6866a617b5147225c4866d356a7690d.gif

Yep predicted to go right over me.  Although anything can change.  We've so far been lucky.  I've seen a handful of storms "predicted" to hit the east coast.  Idalia was the only one to do it so far. 

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GFS ensemble members still thinking theres a system getting close to the islands, while the op is completely missing it.

image.thumb.gif.4a113c40210c83b592beba79b4d9c433.gif

It's kinda there, kinda not.   Plays with the second wave more than the first.

gfs_mslp_pcpn_atl_fh60-144.thumb.gif.20f40ef7613249137006b01818691d4a.gif

 

Meanwhile Euro keeps it intact, does nothing with the second wave (that's a third wave coming off Africa below)

image.thumb.png.8a17fa7273ab4c541b39d5a7c8641e03.png 

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GFS ensemble members still thinking theres a system getting close to the islands, while the op is completely missing it.

image.thumb.gif.4a113c40210c83b592beba79b4d9c433.gif

It's kinda there, kinda not.   Plays with the second wave more than the first.

gfs_mslp_pcpn_atl_fh60-144.thumb.gif.20f40ef7613249137006b01818691d4a.gif

 

Meanwhile Euro keeps it intact, does nothing with the second wave (that's a third wave coming off Africa below)

image.thumb.png.8a17fa7273ab4c541b39d5a7c8641e03.png 

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Likely future Lee moving away from Cape Verde.  

cira-rammb-slider---meteosat-0deg---full_disk---rgb_air_mass-opacity-100---20230904023000-20230904081500.thumb.gif.deda7df0f3512fae97f7c4558ab8db0b.gif

 

GFS is quicker with it than the ECMWF.

gfs_z500_mslp_atl_41.thumb.png.30e5d162a76781d5a9a2297fd1e998cc.png

ecmwf_z500_mslp_atl_65.thumb.png.5c5ab7891da7a5c01bf246b8cceb1b37.png

The danger here is if there's some kind of closed low that pulls the system into the mid Atlantic/ northeast area.  Unlike Idalia that formed and made landfall in just a handful of days, this one will take a little while to make it's journey towards the CONUS.

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On 9/4/2023 at 10:53 AM, buxtonian said:

Now this is interesting: GFS for September 16. Hmmm, Should I stock up on wine?image.png.30fc6d7f74dcbdbb86a46c225a41ed3f.png

You should also pick up a few bottles of vodka.  Vodka is a great "liquid" asset to have in your portfolio because it can be traded during a zombie apocalypse scenario.  And don't worry about buying the high end stuff, people won't care if they are drinking Grey Goose or Popov if they are running from the Zombies.

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Despite the lack of names currently on the map, there are a lot of spinny things in the N Atlantic right now. Idalia up by the Canadian Maritimes.  Franklin over by Portugal and the Azores.  AL96 coming off the coast of Africa, now up to 60% of development. Lee in the middle.  Two smaller spinny systems between Lee and Franklin - the one nearly directly north looks like its associated with an upper low on wv loop.  The other one near 30n looks like a fairly vigorous surface low (Katia, see edit). There's also an upper low off of the Carolinas.

image.thumb.gif.55d32e824bc813620fa2480b92b19399.gif

edit:  that unidentified spinny system by 30n is Katia. 

The remnant low of Katia is near 27.5N33W. This former tropical 
cyclone is still producing a small cluster of showers and 
thunderstorms to NE of the center. An area of 8 ft is associated
with Katia, affecting roughly the waters from 26N to 29N between
32W and 36W.
Edited by StretchCT
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What looks to be the M storm, Margot?, is venting very nice as well and would not be surprised if that gets going rather quickly as well into the central Atlantic. Really do need to watch a sneaky system coming to the antilles in about a week if Lee doesn't strike the US that very well may. Also no real sign of things shutting off in the Atlantic yet especially if we sit here in null to the end of September.

If I remember correctly 1-2 tend to be good for the atlantic hurricane season so going into 3 will may create  light pause and allow the WPAC to actually get a storm but that is still pretty unknown as of yet.

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Not ready to pull the trigger on a thread for this but it looks likely.  

image.png.9c3412236eb827f38cf5a6f8927d1642.png

Sat is a bit of a mess still.  There was a tight surface spinny thing yesterday with no convection over it.  Today it might be under some of the higher clouds, or it may be gone🤷‍♂️

goes16_vis_97L_202309131415.thumb.gif.941cb49fab9cf8f32b723f05a15935a1.gif

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Another area in the MDR orange hashed.  0z euro and 6z gfs create an impressive storm that almost makes it to the islands, but then recurves. 

Screenshot2023-09-17at11_10_22AM.thumb.png.6f0c45ddba5a1204af8e977ed88d2532.png

GFS continues with trying to develop one off the coast.  Hasn't caught the NHC's attention yet.

image.thumb.png.f8a8c56161eb3c0f1b5402b4d0a5c6a8.png

Edited by StretchCT
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Busy season.  GFS is still interested in the area that hatched Ophelia for more activity. The first one could actually be remnants of Ophelia

image.thumb.png.3bd29377e574be5aabe8d1e45a872c18.png

Then another lingers off the coast.

gfs_mslp_pcpn_frzn_eus_fh270-324.thumb.gif.844e28ba3033af9281515b35de1a8ce4.gif

And another Ophelia type hits at the end of the run.

image.thumb.png.7de56a67143035a5af28e63497d47b10.png

I'd prefer storms to form in this area than in the GOM. The MDR (main dev region) storms have multiple opps to recurve due to the persistent low pressure in the W Atlantic spitting out lows across the N Atlantic

 

 

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We normally shift to GOM/CAR/Homegrown cyclones once we are deep into OCT.  This is showing another formation in the MDR, or slightly south of that. Next named storm is my namesake and being an S and with multiple spellings of my name, I don't get very many shots at this!  

image.thumb.png.ea21bedd5cc328ff0109dd661e4f8018.png

image.thumb.png.56bf4e26089082f322d09e6b1729e9fc.png

Edited by StretchCT
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