ATL: IAN - Models

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skyline385
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Re: ATL: INVEST 98L - Models

#381 Postby skyline385 » Wed Sep 21, 2022 12:01 pm

cheezyWXguy wrote:
toad strangler wrote:
AutoPenalti wrote:Big Bend incoming


I didn't think that would happen going as far S & W as it did.

Yeah looks like Pensacola this run. Personally I think this marks the western extreme of plausible paths. One thing I particularly don’t like about this run is that is that there isn’t nearly as much weakening in the gulf as on previous runs

I think it’s because the previous runs has sub-930mb systems. It is relatively easier to weaken a Cat 5/4 than something like a Cat 3 as the requirements to sustain the former are much higher.


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Re: ATL: INVEST 98L - Models

#382 Postby Javlin » Wed Sep 21, 2022 12:01 pm

BeefStew:Was just about to say this. At this point, operational runs are little more than entertainment. We’re still over a week out, and while the synoptic setup isn’t as complex as some we’ve seen in the past,

While I agree I have been noticing the temps for in the morning 27/28 of MGC are increasing like the front is not as strong does raise an eyebrow.When it gets close to or S.Cuba we all will have a better idea. :wink:

CMC :eek:
Last edited by Javlin on Wed Sep 21, 2022 12:02 pm, edited 1 time in total.
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Re: ATL: INVEST 98L - Models

#383 Postby Stormcenter » Wed Sep 21, 2022 12:02 pm

The thing to note from this run is that track has continued
to trend westward.
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Re: ATL: INVEST 98L - Models

#384 Postby SFLcane » Wed Sep 21, 2022 12:04 pm

Stormcenter wrote:The thing to note from this run is that track has continued
to trend westward.


On the OP surely which will continue to have wild swings until something actually forms. GEFS still way east of OP GFS.
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Re: ATL: INVEST 98L - Models

#385 Postby AutoPenalti » Wed Sep 21, 2022 12:05 pm

The trend is actually that it’s taking longer to consolidate after it moves away from SA. Likely the GFS correcting itself to the Euro.
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Re: ATL: INVEST 98L - Models

#386 Postby SFLcane » Wed Sep 21, 2022 12:07 pm

Image
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Re: ATL: INVEST 98L - Models

#387 Postby Ivanhater » Wed Sep 21, 2022 12:07 pm

The longer this takes to develop (which it looks like it is currently in no hurry) the greater the chance it misses the trough connection. We shall see
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Re: ATL: INVEST 98L - Models

#388 Postby Ivanhater » Wed Sep 21, 2022 12:09 pm

The Mean Gfs ensembles are farther west than the 06z through 274 hrs
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Re: ATL: INVEST 98L - Models

#389 Postby Javlin » Wed Sep 21, 2022 12:10 pm

ICON also 120miles further W as opposed to the 0Z all obs at this point "the waiting game" :wink:
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Re: ATL: INVEST 98L - Models

#390 Postby SFLcane » Wed Sep 21, 2022 12:11 pm

Ivanhater wrote:The Mean Gfs ensembles are farther west than the 06z through 274 hrs


Image
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Re: ATL: INVEST 98L - Models

#391 Postby skyline385 » Wed Sep 21, 2022 12:12 pm

CMC has it in NOLA with its recent west bias

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Re: ATL: INVEST 98L - Models

#392 Postby chris_fit » Wed Sep 21, 2022 12:12 pm

12z roundup @180 hrs (anything after is meh) - waiting on EURO still.

ICON
Image

GFS
Image

CMC
Image
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Re: ATL: INVEST 98L - Models

#393 Postby BobHarlem » Wed Sep 21, 2022 12:13 pm

12z canadian, another shift right from the 0z and yesterday's 12z.
Image
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Re: ATL: INVEST 98L - Models

#394 Postby sma10 » Wed Sep 21, 2022 12:13 pm

AutoPenalti wrote:The trend is actually that it’s taking longer to consolidate after it moves away from SA. Likely the GFS correcting itself to the Euro.


At this point, we have the OP Euro with a pretty tight sweep just past Jamaica, up thru Cuba and a NNE approach into S FL. The OP GFS tho has a much wider sweep way out to the Yucatan and a slow NNE approach into W Panhandle.

Seem really different, but geometrically very similar just a matter of degree. All guesswork now of course, but as usual the answer is likely something in between
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Re: ATL: INVEST 98L - Models

#395 Postby Ivanhater » Wed Sep 21, 2022 12:14 pm

SFLcane wrote:
Ivanhater wrote:The Mean Gfs ensembles are farther west than the 06z through 274 hrs


https://i.postimg.cc/NMm87vpr/gefs.png


That is yesterday's run
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Re: ATL: INVEST 98L - Models

#396 Postby skyline385 » Wed Sep 21, 2022 12:14 pm

SFLcane wrote:
Ivanhater wrote:The Mean Gfs ensembles are farther west than the 06z through 274 hrs


Image

That’s yesterdays run


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Re: ATL: INVEST 98L - Models

#397 Postby cheezyWXguy » Wed Sep 21, 2022 12:14 pm

skyline385 wrote:
cheezyWXguy wrote:
toad strangler wrote:
I didn't think that would happen going as far S & W as it did.

Yeah looks like Pensacola this run. Personally I think this marks the western extreme of plausible paths. One thing I particularly don’t like about this run is that is that there isn’t nearly as much weakening in the gulf as on previous runs

I think it’s because the previous runs has sub-930mb systems. It is relatively easier to weaken a Cat 5/4 than something like a Cat 3 as the requirements to sustain the former are much higher.


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I'd think 943mb would represent a 4 more so than a 3, but I guess large size would play a role too. Regardless, I'm not sure I believe that's the mechanism in play here. I think the slower movement allows the trough to lift further out than in previous runs. As many have noted here, the trough will play a big role in determining how strong this is and where it goes.

In general, the main scenario I'm hoping we don't see is one that gets the storm far enough west to minimize land interaction with Cuba, but a landfall far enough south on the peninsula to avoid the harsher conditions of the northern gulf. The slower development and faster movement in the Caribbean make me think such a path is not unreasonable.
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Re: ATL: INVEST 98L - Models

#398 Postby p1nheadlarry » Wed Sep 21, 2022 12:16 pm

SFLcane wrote:
Stormcenter wrote:The thing to note from this run is that track has continued
to trend westward.


On the OP surely which will continue to have wild swings until something actually forms. GEFS still way east of OP GFS.


The GEFS being east really just means perturbations to the initial conditions favors more eastern solutions than western ones. The spread is what's more important rather than select members (surely that's known just want to clarify)
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Re: ATL: INVEST 98L - Models

#399 Postby SFLcane » Wed Sep 21, 2022 12:16 pm

skyline385 wrote:
SFLcane wrote:
Ivanhater wrote:The Mean Gfs ensembles are farther west than the 06z through 274 hrs


https://i.postimg.cc/NMm87vpr/gefs.png

That’s yesterdays run


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:lol:
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Re: ATL: INVEST 98L - Models

#400 Postby caneseddy » Wed Sep 21, 2022 12:18 pm

From the discussion thread

Re: ATL: INVEST 98L - Discussion
#186 Postby wxman57 » Wed Sep 21, 2022 12:08 pm

I don't trust 12Z GFS. Drives it right into a west-east jet core. Sheared storms (west-east) always track right of the forecast.


Too early to be confident of any one solution.
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