2024 Global Model Runs Discussion (Out thru day 16)

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Pas_Bon
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1321 Postby Pas_Bon » Sat Aug 24, 2024 5:57 am

Nimbus wrote:
Stratton23 wrote:00z GFS again has another wave trying to develop in the gulf next week, thats been showing up on the last 3-4 runs now, interesting

Even the 00z CMC is starting to hint at this as well, albeit its much weaker and stretched out wave


https://www.tropicaltidbits.com/sat/sat ... uct=wv_mid

Mid level circulations typically take *days* to get down to the surface.
Texas could still get significant rain from a mid level feature if the thunderstorm activity picks up.
If we start seeing the surface pressures at the mid gulf buoy yoyo down below 1008 MB we might get a declared depression. And if a depression did form it could come northeast with the next front.

https://www.ndbc.noaa.gov/station_page. ... tion=42001



Texas will keep it. It’ll be our little rain pet.
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1322 Postby Teban54 » Sat Aug 24, 2024 6:36 am

6z GFS has a TS near the Cabo Verde Islands starting at around 180 hrs: (It also stalls a weak TC on top of New Orleans later in the run)

Image

0z EPS has a much stronger signal (30-40% of members) for a Central Atlantic wave at 240 hrs, in line with operational EC's vortex as mentioned above, and with the system on CMC and ECAI:

Image


Meanwhile, 6z GEFS is notably less active than the 0z run, not to mention 18z.
Last edited by Teban54 on Sat Aug 24, 2024 7:05 am, edited 1 time in total.
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1323 Postby redingtonbeach » Sat Aug 24, 2024 6:59 am

wxman57 wrote:I certainly like what I'm seeing in the models today - no significant development.


Central Florida feels like it has so far escaped the daily ritual of violent sea breeze storms this year. While they have been occurring, they haven’t been close to the same tenaciousness typically felt during the summer. Yet, rainfall amounts are up.

Any thoughts of general correlation to the limited tropical development so far?
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1324 Postby mantis83 » Sat Aug 24, 2024 7:14 am

wxman57 wrote:I certainly like what I'm seeing in the models today - no significant development. I'm thinking that the next storm may form in the Subtropical Atlantic ENE of Bermuda in 7-10 days. Love it! Maybe I'll take next Thursday AND Friday off before the 3-day Labor Day weekend.

agreed and anything that models try to develop in the mdr seems to gain latitude pretty quick...
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1325 Postby Category5Kaiju » Sat Aug 24, 2024 7:19 am

mantis83 wrote:
wxman57 wrote:I certainly like what I'm seeing in the models today - no significant development. I'm thinking that the next storm may form in the Subtropical Atlantic ENE of Bermuda in 7-10 days. Love it! Maybe I'll take next Thursday AND Friday off before the 3-day Labor Day weekend.

agreed and anything that models try to develop in the mdr seems to gain latitude pretty quick...


Are you basing this on your own feelings/wishes, or is there a specific model that shows this? As far as I’m aware, the recent Euro and GFS ensembles have this pointed more westward if anything, so idk
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1326 Postby gatorcane » Sat Aug 24, 2024 7:30 am

MarioProtVI wrote:Meant to post here, but 00z EURO is FINALLY starting to pick up the wave that AI-EURO, CMC, CFS and ensembles have been detecting. Uptrended quite a bit - previously was just strung out to hell and back but now is actually a coherent entity.

https://media.discordapp.net/attachments/857017650042503178/1276788391111032842/trend-ecmwf_full-2024082400-f216.850hv.watl.gif?ex=66cacd5a&is=66c97bda&hm=bfb64a3310b548ccc236d550174b78dd408ad4a22a3c9a99330d0911c2eebfa0&

You can also see the wave with attached weak Low on the 00Z Euro operational wind shear chart. Looks like it has a nice upper-level anticyclonic flow which is quite favorable. It is the same wave I believe the EC-AIFS has developed for some 18 runs in a row now:

Image
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1327 Postby Stormlover70 » Sat Aug 24, 2024 7:54 am

wxman57 wrote:I certainly like what I'm seeing in the models today - no significant development. I'm thinking that the next storm may form in the Subtropical Atlantic ENE of Bermuda in 7-10 days. Love it! Maybe I'll take next Thursday AND Friday off before the 3-day Labor Day weekend.
Enjoy the quiet. Honestly I hope it continues.
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1328 Postby Cachondo23 » Sat Aug 24, 2024 8:00 am

Pas_Bon wrote:At some point, we just have to call a spade a spade. No, the season isn’t “cancelled,” but it’s getting time that we need to really curtail our expectations of a “hyperactive” season, in my non-professional opinion.

We keep hearing, “the switch is going to flip any day now” and now “September will be a rough one.” This, after hearing, “August will be Hell.”



I’ll be honest, while I expect a few storms in September, I’m not seeing anything from the models indicating that we will see anything other than a few storms here and there.

The prognostications for this season were justified, indeed. They haven’t really panned out. We had a Cat 1 in Texas (granted, it reached Cat 5 and damaged Jamaica quite a bit) and a Cat 1 in Florida. Other than that, we’ve had a couple tropical storms and a (mostly) fish that impacted Bermuda. While that is active for whomever gets them, it’s hardly the doom and gloom that has had so many worried for so long.

What about Cat 4 Beryl landfalling in The Grenadines? Especially Carriacou, that island is devastated where it can take months and even years to recover.
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1329 Postby Category5Kaiju » Sat Aug 24, 2024 8:11 am

Cachondo23 wrote:
Pas_Bon wrote:At some point, we just have to call a spade a spade. No, the season isn’t “cancelled,” but it’s getting time that we need to really curtail our expectations of a “hyperactive” season, in my non-professional opinion.

We keep hearing, “the switch is going to flip any day now” and now “September will be a rough one.” This, after hearing, “August will be Hell.”



I’ll be honest, while I expect a few storms in September, I’m not seeing anything from the models indicating that we will see anything other than a few storms here and there.

The prognostications for this season were justified, indeed. They haven’t really panned out. We had a Cat 1 in Texas (granted, it reached Cat 5 and damaged Jamaica quite a bit) and a Cat 1 in Florida. Other than that, we’ve had a couple tropical storms and a (mostly) fish that impacted Bermuda. While that is active for whomever gets them, it’s hardly the doom and gloom that has had so many worried for so long.

What about Cat 4 Beryl landfalling in The Grenadines? Especially Carriacou, that island is devastated where it can take months and even years to recover.


Not to mention September is 30 days long, and who knows what's going to happen during the month that is historically primetime for hurricanes for a reason.
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1330 Postby Jr0d » Sat Aug 24, 2024 8:49 am

Pas_Bon wrote:At some point, we just have to call a spade a spade. No, the season isn’t “cancelled,” but it’s getting time that we need to really curtail our expectations of a “hyperactive” season, in my non-professional opinion.

We keep hearing, “the switch is going to flip any day now” and now “September will be a rough one.” This, after hearing, “August will be Hell.”

I’ll be honest, while I expect a few storms in September, I’m not seeing anything from the models indicating that we will see anything other than a few storms here and there.

The prognostications for this season were justified, indeed. They haven’t really panned out. We had a Cat 1 in Texas (granted, it reached Cat 5 and damaged Jamaica quite a bit) and a Cat 1 in Florida. Other than that, we’ve had a couple tropical storms and a (mostly) fish that impacted Bermuda. While that is active for whomever gets them, it’s hardly the doom and gloom that has had so many worried for so long.


Historically the hurricane season is just getting started, if i recall correctly about 90% of the activity happens after Mid-August.

The ingredients are still there for a hyperactive season, if we are still not seeing much activity by mid September then we can start making these kind of assessments.

As others have pointed out, Grenada and the Grenadines were devastated after Beryl, another name that will be retired and remembered as a historically bad hurricane and the most intense June storm we have ever seen.

We can easily see 6+ storms in September and another 4+ in October which would bring the total on par with pre season predictions.

Countless times folks on this board have made posts similar to yours and 2 weeks later were eating crow.
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1331 Postby Javlin » Sat Aug 24, 2024 9:17 am

Every Morning I go to Tropical Tidbits open sats look at the Atlantic Wide and go nothing today or tomorrow it is void of cloud cover.... I'll take that! We will see something it's just not going to be 20/25 systems :wink:

https://www.tropicaltidbits.com/sat/sat ... =truecolor
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1332 Postby LarryWx » Sat Aug 24, 2024 9:29 am

The 6Z Euro-AIFS has a TC that originates from a TCG in the vicinity of the Leeward Islands ~Sept 2nd. This makes it the 21st run in a row with a TCG near the Leewards ~9/2. This goes all of the way back to the 6Z 8/19 run! You can still see all of these runs on Tropical Tidbits.
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1333 Postby tolakram » Sat Aug 24, 2024 9:35 am

LarryWx wrote:The 6Z Euro-AIFS has a TC that originates from a TCG in the vicinity of the Leeward Islands ~Sept 2nd. This makes it the 21st run in a row with a TCG near the Leewards ~9/2. This goes all of the way back to the 6Z 8/19 run! You can still see all of these runs on Tropical Tidbits.


Trend GIF below. With AI I wonder how much seasonal norms it's adding to the equation, if any?

Image
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1334 Postby Stratton23 » Sat Aug 24, 2024 11:22 am

ICON 12z has a strong TS developing off the texas coast
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1335 Postby LAF92 » Sat Aug 24, 2024 11:27 am

Stratton23 wrote:ICON 12z has a strong TS developing off the texas coast

And meandering for a coupes days over the gulf. Looks like the 12z gfs has a weak TS developing around the same time frame around South Texas coastline
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1336 Postby gatorcane » Sat Aug 24, 2024 11:29 am

While weak, the GFS continues to show a low pressure developing in the vicinity of Florida for Labor Day weekend:

Image
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1337 Postby WaveBreaking » Sat Aug 24, 2024 11:41 am

This wave will be a very good way to test how accurate the new AIFS model is seeing how it’s been insistent on developing it for almost a week straight.

Image
Image
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1338 Postby aspen » Sat Aug 24, 2024 11:53 am

ICON has a developing TC in the middle of the MDR at the end of its 12z run, perhaps it’s the same TC as the AI-Euro?
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1339 Postby Stratton23 » Sat Aug 24, 2024 11:58 am

3 tropical disturbances by the GFS in the gulf within 10 days, all beats watching , especially with a front coming down from the north and stalling, that could help to lower pressures in the gulf, worth mentioning maybe a system developing in the MDR, but the gulf may become a hotspot over the next 10-14 days for a couple of systems to spin up
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Re: 2024 Global Model Runs Discussion (Out thru day 16)

#1340 Postby cycloneye » Sat Aug 24, 2024 12:04 pm

I dont post long range but doing it now because of the RI GFS has at SW GOM.

Image
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