ATL: SALLY - Post-Tropical - Discussion

Moderator: S2k Moderators

Message
Author
User avatar
cheezyWXguy
Category 5
Category 5
Posts: 6108
Joined: Mon Feb 13, 2006 12:29 am
Location: Dallas, TX

Re: ATL: SALLY - Tropical Storm - Discussion

#1561 Postby cheezyWXguy » Mon Sep 14, 2020 7:18 am

cfisher wrote:
Aric Dunn wrote:The center is right between the two large towers on radar and satellite. very deep convection building right now on the south side.

https://i.ibb.co/NYyz1zW/5.gif

That's a meso. Unless it brings a low to the surface, which is entirely possible I guess?

Meso’s aren’t 50 miles across, but I suspect it probably is in mid levels and trying to drill down. Llc could be close to aligned with it though
0 likes   

cfisher

Re: ATL: SALLY - Tropical Storm - Discussion

#1562 Postby cfisher » Mon Sep 14, 2020 7:19 am

If that monstrosity of a tower is able to wrap around the core..
2 likes   

User avatar
GCANE
S2K Supporter
S2K Supporter
Posts: 11501
Joined: Mon Oct 22, 2007 8:03 am

Re: ATL: SALLY - Tropical Storm - Discussion

#1563 Postby GCANE » Mon Sep 14, 2020 7:21 am

That tower a couple hours ago kicked it off.
1 likes   

edu2703
Category 1
Category 1
Posts: 349
Joined: Thu Aug 23, 2018 7:15 pm

Re: ATL: SALLY - Tropical Storm - Discussion

#1564 Postby edu2703 » Mon Sep 14, 2020 7:23 am

0 likes   

Aric Dunn
Category 5
Category 5
Posts: 21238
Age: 42
Joined: Sun Sep 19, 2004 9:58 pm
Location: Ready for the Chase.
Contact:

Re: ATL: SALLY - Tropical Storm - Discussion

#1565 Postby Aric Dunn » Mon Sep 14, 2020 7:25 am

hmmm winds are 10 to 20 kts in that heavy tower ?? per recon..

there has to be some sort of relocation happening.
1 likes   
Note: If I make a post that is brief. Please refer back to previous posts for the analysis or reasoning. I do not re-write/qoute what my initial post said each time.
If there is nothing before... then just ask :)

Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...

cfisher

Re: ATL: SALLY - Tropical Storm - Discussion

#1566 Postby cfisher » Mon Sep 14, 2020 7:26 am

Aric Dunn wrote:hmmm winds are 10 to 20 kts in that heavy tower ?? per recon..

there has to be some sort of relocation happening.

They didn't fly through the tower due to the absurd updrafts/turbulence.

 https://twitter.com/TheSteveCop/status/1305481237331677185


0 likes   

Aric Dunn
Category 5
Category 5
Posts: 21238
Age: 42
Joined: Sun Sep 19, 2004 9:58 pm
Location: Ready for the Chase.
Contact:

Re: ATL: SALLY - Tropical Storm - Discussion

#1567 Postby Aric Dunn » Mon Sep 14, 2020 7:28 am

cfisher wrote:
Aric Dunn wrote:hmmm winds are 10 to 20 kts in that heavy tower ?? per recon..

there has to be some sort of relocation happening.

They didn't fly through the tower due to the absurd updrafts/turbulence.

https://twitter.com/TheSteveCop/status/1305481237331677185?s=20


Still should not be 10 to 20 kts in that area lol
0 likes   
Note: If I make a post that is brief. Please refer back to previous posts for the analysis or reasoning. I do not re-write/qoute what my initial post said each time.
If there is nothing before... then just ask :)

Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...

User avatar
GCANE
S2K Supporter
S2K Supporter
Posts: 11501
Joined: Mon Oct 22, 2007 8:03 am

Re: ATL: SALLY - Tropical Storm - Discussion

#1568 Postby GCANE » Mon Sep 14, 2020 7:29 am

Quite a bit lower FL winds than surface.
They are at 850mb.
Indicates strong downdraft from the tower.
0 likes   

cfisher

Re: ATL: SALLY - Tropical Storm - Discussion

#1569 Postby cfisher » Mon Sep 14, 2020 7:30 am

Aric Dunn wrote:
cfisher wrote:
Aric Dunn wrote:hmmm winds are 10 to 20 kts in that heavy tower ?? per recon..

there has to be some sort of relocation happening.

They didn't fly through the tower due to the absurd updrafts/turbulence.

https://twitter.com/TheSteveCop/status/1305481237331677185?s=20


Still should not be 10 to 20 kts in that area lol

Eh, I'm more interested to see if this thing can power through the shear and wrap.
0 likes   

User avatar
GCANE
S2K Supporter
S2K Supporter
Posts: 11501
Joined: Mon Oct 22, 2007 8:03 am

Re: ATL: SALLY - Tropical Storm - Discussion

#1570 Postby GCANE » Mon Sep 14, 2020 7:33 am

That warm-core feature on IR, next to the Hot Tower, is getting bigger and warmer.
1 likes   

us89
Category 1
Category 1
Posts: 399
Joined: Wed Sep 04, 2019 11:12 pm
Location: Tallahassee, FL

Re: ATL: SALLY - Tropical Storm - Discussion

#1571 Postby us89 » Mon Sep 14, 2020 7:33 am

Extrapolated surface pressure is still just 998 mb. I really thought that would be lower after the convective blowups last night.

That said, that NW quad has a very broad TS wind field. This is going to be a storm where you definitely don’t have to be close to the center to see impacts.
Last edited by us89 on Mon Sep 14, 2020 7:34 am, edited 1 time in total.
0 likes   

User avatar
cheezyWXguy
Category 5
Category 5
Posts: 6108
Joined: Mon Feb 13, 2006 12:29 am
Location: Dallas, TX

Re: ATL: SALLY - Tropical Storm - Discussion

#1572 Postby cheezyWXguy » Mon Sep 14, 2020 7:34 am

The llc could be consolidating under the mlc. Radar velocities suggest that mlc is tightening up
0 likes   

Dean4Storms
S2K Supporter
S2K Supporter
Posts: 6358
Age: 62
Joined: Sun Aug 31, 2003 1:01 pm
Location: Miramar Bch. FL

Re: ATL: SALLY - Tropical Storm - Discussion

#1573 Postby Dean4Storms » Mon Sep 14, 2020 7:34 am

It’s westward movement is just enough right now to induce some weak shear keeping it from getting aligned 100%, when it slows or turns northward that will change.
0 likes   

Aric Dunn
Category 5
Category 5
Posts: 21238
Age: 42
Joined: Sun Sep 19, 2004 9:58 pm
Location: Ready for the Chase.
Contact:

Re: ATL: SALLY - Tropical Storm - Discussion

#1574 Postby Aric Dunn » Mon Sep 14, 2020 7:38 am

Those light winds to the NE of the recon fix under that very pronounced Circ just above the surface on radar.. indicated a likely relocation of the center is ongoing.

that is a huge swath of light winds where it should not be. Relocation or getting pulled ENE in that white circ possibly

Image
0 likes   
Note: If I make a post that is brief. Please refer back to previous posts for the analysis or reasoning. I do not re-write/qoute what my initial post said each time.
If there is nothing before... then just ask :)

Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...

User avatar
DestinHurricane
Category 4
Category 4
Posts: 935
Joined: Tue May 01, 2018 8:05 am
Location: New York, NY

Re: ATL: SALLY - Tropical Storm - Discussion

#1575 Postby DestinHurricane » Mon Sep 14, 2020 7:41 am

Aric Dunn wrote:Those light winds to the NE of the recon fix under that very pronounced Circ just above the surface on radar.. indicated a likely relocation of the center is ongoing.

that is a huge swath of light winds where it should not be. Relocation or getting pulled ENE in that white circ possibly

https://i.ibb.co/BrJ4vKX/Capture.png


I imagine this could have some small implications on the track.
0 likes   
Michael 2018

hipshot
Category 2
Category 2
Posts: 591
Joined: Tue Jul 06, 2010 9:18 pm
Location: Dallas, Texas

Re: ATL: SALLY - Tropical Storm - Discussion

#1576 Postby hipshot » Mon Sep 14, 2020 7:42 am

tolakram wrote:Very interesting look on visible this morning.

https://whirlwind.aos.wisc.edu/~wxp/goes16/grb/meso_vis_sqrt/meso1_30.html


Is the LLC at the center of that expanding cloud deck. If so, it looks pretty symmetrical to me at the moment in that image.
0 likes   

ronyan
S2K Supporter
S2K Supporter
Posts: 791
Age: 39
Joined: Tue Sep 09, 2008 5:46 pm
Location: Lake Jackson, TX

Re: ATL: SALLY - Tropical Storm - Discussion

#1577 Postby ronyan » Mon Sep 14, 2020 7:42 am

Aric Dunn wrote:Those light winds to the NE of the recon fix under that very pronounced Circ just above the surface on radar.. indicated a likely relocation of the center is ongoing.

that is a huge swath of light winds where it should not be. Relocation or getting pulled ENE in that white circ possibly

https://i.ibb.co/BrJ4vKX/Capture.png


I just saw a tweet from Levi Cowan pointing out the same, may be the start of something.
1 likes   

edu2703
Category 1
Category 1
Posts: 349
Joined: Thu Aug 23, 2018 7:15 pm

Re: ATL: SALLY - Tropical Storm - Discussion

#1578 Postby edu2703 » Mon Sep 14, 2020 7:44 am

2 likes   

cfisher

Re: ATL: SALLY - Tropical Storm - Discussion

#1579 Postby cfisher » Mon Sep 14, 2020 7:45 am

:eyes-emoji:
0 likes   

SconnieCane
Category 4
Category 4
Posts: 998
Joined: Thu Aug 02, 2018 5:29 pm
Location: Madison, WI

Re: ATL: SALLY - Tropical Storm - Discussion

#1580 Postby SconnieCane » Mon Sep 14, 2020 7:47 am

This is certainly one of the oddest storms I've ever tracked, in keeping with 2020's record. With hints of a small, tight core developing as it emerged from Florida, I was expecting it to stack and deepen quickly once the shear abated. Instead it is behaving more like Ike, which had a flat, broad pressure gradient after having its core tore up by Cuba and took a long time to get it back together, but this storm had no such prolonged interaction with mountainous terrain.
Last edited by SconnieCane on Mon Sep 14, 2020 7:47 am, edited 1 time in total.
2 likes   


Return to “2020”

Who is online

Users browsing this forum: No registered users and 13 guests