ATL: LAURA - Models

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Re: ATL: THIRTEEN - Models

#1521 Postby Shell Mound » Fri Aug 21, 2020 2:47 am

Shell Mound wrote:
ColdMiser123 wrote:
WxEp wrote:
Appears to be stronger at that point than it has been since the Aug 18 00z run (not that that is saying much).

Between H24 and H48 it weakens but it's still relatively stronger than recent previous runs for what it's worth.


These are some pretty significant changes still in the short-term on the Euro.

This ultimately may have more significant forecast implications down the road if this continues to take place with future runs.

https://i.imgur.com/AQykUgX.gif

So far models have distinctly trended toward a stronger and more westerly trajectory with both TD Thirteen and TD Fourteen.

If Fourteen is farther W in the GoM while Thirteen nears S FL, then there may be sufficient “space” to support two strong ‘canes.

The big takeaway is that the ridge has continued to become stronger with each passing run, so stronger systems still head W(NW).

Personally, I don’t think the latest HWRF solutions are so implausible as far as intensity goes (I side with the EPS for 500-mb setup).

Quite a trend toward much stronger ridging on the EC suite(s)—important, given we are now within three days of potential impact(s):

Image
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Image
Image
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Re: ATL: THIRTEEN - Models

#1522 Postby Keldeo1997 » Fri Aug 21, 2020 3:59 am

 https://twitter.com/WxTca/status/1296703714682712064




It might not mean anything but if it does, its a big win the HWRF. Called the weakening of the southern convection and the new hot towers that popped up. Only thing that's wrong is the hot towers are to strong on the HWRF
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Re: ATL: THIRTEEN - Models

#1523 Postby SouthernBreeze » Fri Aug 21, 2020 4:01 am

That's exactly what looks like is happening now on satellite
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Re: ATL: THIRTEEN - Models

#1524 Postby toad strangler » Fri Aug 21, 2020 4:54 am

Shell Mound wrote:
Shell Mound wrote:
ColdMiser123 wrote:
These are some pretty significant changes still in the short-term on the Euro.

This ultimately may have more significant forecast implications down the road if this continues to take place with future runs.

https://i.imgur.com/AQykUgX.gif

So far models have distinctly trended toward a stronger and more westerly trajectory with both TD Thirteen and TD Fourteen.

If Fourteen is farther W in the GoM while Thirteen nears S FL, then there may be sufficient “space” to support two strong ‘canes.

The big takeaway is that the ridge has continued to become stronger with each passing run, so stronger systems still head W(NW).

Personally, I don’t think the latest HWRF solutions are so implausible as far as intensity goes (I side with the EPS for 500-mb setup).

Quite a trend toward much stronger ridging on the EC suite(s)—important, given we are now within three days of potential impact(s):

https://www.tropicaltidbits.com/analysis/models/ecmwf-ens/2020082012/ecmwf-ens_z500a_atl_5.png
https://www.tropicaltidbits.com/analysis/models/ecmwf-ens/2020082012/ecmwf-ens_z500a_atl_6.png
https://www.tropicaltidbits.com/analysis/models/ecmwf/2020082100/ecmwf_z500a_atl_4.png
https://www.tropicaltidbits.com/analysis/models/ecmwf/2020082100/ecmwf_z500a_atl_5.png


So, you are saying this won’t recurve East of FL now? Boy that’s a huge change huh? It misses FL as you said yesterday but on the wrong side. :D
Last edited by toad strangler on Fri Aug 21, 2020 4:56 am, edited 1 time in total.
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Re: ATL: THIRTEEN - Models

#1525 Postby Shell Mound » Fri Aug 21, 2020 4:55 am

toad strangler wrote:
Shell Mound wrote:
Shell Mound wrote:So far models have distinctly trended toward a stronger and more westerly trajectory with both TD Thirteen and TD Fourteen.

If Fourteen is farther W in the GoM while Thirteen nears S FL, then there may be sufficient “space” to support two strong ‘canes.

The big takeaway is that the ridge has continued to become stronger with each passing run, so stronger systems still head W(NW).

Personally, I don’t think the latest HWRF solutions are so implausible as far as intensity goes (I side with the EPS for 500-mb setup).

Quite a trend toward much stronger ridging on the EC suite(s)—important, given we are now within three days of potential impact(s):

https://www.tropicaltidbits.com/analysis/models/ecmwf-ens/2020082012/ecmwf-ens_z500a_atl_5.png
https://www.tropicaltidbits.com/analysis/models/ecmwf-ens/2020082012/ecmwf-ens_z500a_atl_6.png
https://www.tropicaltidbits.com/analysis/models/ecmwf/2020082100/ecmwf_z500a_atl_4.png
https://www.tropicaltidbits.com/analysis/models/ecmwf/2020082100/ecmwf_z500a_atl_5.png


So, you are saying this won’t recurve East of FL now?

Ditto. 8-) But I don’t think it will miss the state. A landfall in the Keys or (more probably) the Miami area seems probable at this point.
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Re: ATL: THIRTEEN - Models

#1526 Postby eastcoastFL » Fri Aug 21, 2020 4:58 am

Keldeo1997 wrote:https://twitter.com/WxTca/status/1296703714682712064

It might not mean anything but if it does, its a big win the HWRF. Called the weakening of the southern convection and the new hot towers that popped up. Only thing that's wrong is the hot towers are to strong on the HWRF


On IR that pretty much what’s going on right now. Pretty spot on by HWRF so far. That’s impressive and even more so if it continues to play out.

It has it getting a little uglier tonight before it improves tomorrow afternoon

Tonight

Image

Tomorrow

Image
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Re: ATL: THIRTEEN - Models

#1527 Postby NDG » Fri Aug 21, 2020 6:01 am

This is one heck of spread on the Euro ensembles on TD 14, I don't think Globals have a good handle on what will really come out of both TDs.

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Re: ATL: THIRTEEN - Models

#1528 Postby northjaxpro » Fri Aug 21, 2020 6:25 am

NDG wrote:This is one heck of spread on the Euro ensembles on TD 14, I don't think Globals have a good handle on what will really come out of both TDs.



No, the globals just have really struggled for the most part like I have never seen them this season.
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Re: ATL: THIRTEEN - Models

#1529 Postby jhpigott » Fri Aug 21, 2020 6:43 am

06z HWRF a touch north (thru the middle Keys, mid 960s) compared to the 12z HWRF (thru Key West, mid 940s)

https://www.tropicaltidbits.com/analysi ... 82106&fh=6
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Re: ATL: THIRTEEN - Models

#1530 Postby SouthFLTropics » Fri Aug 21, 2020 6:44 am

Latest HWRF from 06z coming in. Not as aggressive as last nights 00z through the Keys but still formidable.

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Re: ATL: THIRTEEN - Models

#1531 Postby SFLcane » Fri Aug 21, 2020 6:46 am

jhpigott wrote:06z HWRF a touch north (thru the middle Keys, mid 960s) compared to the 12z HWRF (thru Key West, mid 940s)

https://www.tropicaltidbits.com/analysi ... 82106&fh=6


Yea up through middle keys this time so a bit north of 00z. Closer to mainland SFL
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Re: ATL: THIRTEEN - Models

#1532 Postby Nimbus » Fri Aug 21, 2020 6:53 am

Still two or three camps with the model runs.
HWRF tracking north of the islands and through the Florida straits with nightmare landfalls on the gulf coast.
GFS has more land interaction with the big islands.
HMON actually south of Puerto Rico.

The blob is moving west but I'll wait for recon to decide the latest vort alignments.
Probably going to need some storm warnings for Leewards and PR though.
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Re: ATL: THIRTEEN - Models

#1533 Postby Ken711 » Fri Aug 21, 2020 7:06 am

Image

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Re: ATL: THIRTEEN - Models

#1534 Postby kevin » Fri Aug 21, 2020 7:10 am

HWRF ends as a 943 mbar major and seems on its way to make landfall near Mobile. So indeed weaker when directly below Florida than the last run (949 mbar vs 967 mbar), but at 120 hours the difference is only 5 mbar compared to the previous 938 mbar run.

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Re: ATL: THIRTEEN - Models

#1535 Postby chris_fit » Fri Aug 21, 2020 7:37 am

06Z EURO actually has something that resembles a TS around the Keys. Most of the heavy weather north of the CoC.


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Re: ATL: LAURA - Models

#1536 Postby chris_fit » Fri Aug 21, 2020 8:20 am

06Z EPS are lighting up!

That's 13 you see (not 14) - Take it way into the Central Gulf and Strengthen

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Re: ATL: LAURA - Models

#1537 Postby SFLcane » Fri Aug 21, 2020 8:22 am

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Re: ATL: THIRTEEN - Models

#1538 Postby SFLcane » Fri Aug 21, 2020 8:25 am



Looking better for SFL models trending even further south. We might be out of the cone with the new center position at 11am.
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Re: ATL: LAURA - Models

#1539 Postby Ivanhater » Fri Aug 21, 2020 8:30 am

This is becoming quite concerning for the north central gulf coast
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Re: ATL: THIRTEEN - Models

#1540 Postby NDG » Fri Aug 21, 2020 8:31 am

SFLcane wrote:


Looking better for SFL models trending even further south. We might be out of the cone with the new center position at 11am.


Thanks to some one's, who I wouldn't mention, unforeseen Bermuda ridge. :wink:
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