ATL : TROPICAL STORM GRACE

Moderator: S2k Moderators

Message
Author
supercane
S2K Supporter
S2K Supporter
Posts: 2856
Joined: Wed Sep 16, 2009 8:27 pm

Re: ATL : Invest 90L

#81 Postby supercane » Sat Oct 03, 2009 1:13 pm

Where are you getting those QuikSCATs? Those are old, as the system is not as close to the Azores now as it was. The OPC analyzes the system as a 998-mb gale center from an occluded front:
Image
So does the UK Met Office (not shown). Also, unlike a pure tropical system, the wide extent of higher winds north of the center is not typical of a tropical system and suggests much of this comes from the gradient between it and a 1023-mb high to the north. The convection is highly asymmetric and mostly to the north and east of the center
Also, as stated above, any warm core is very shallow, as the 500-mb analysis shows (note that this is a TIF file).

supercane
0 likes   

User avatar
HURAKAN
Professional-Met
Professional-Met
Posts: 46086
Age: 37
Joined: Thu May 20, 2004 4:34 pm
Location: Key West, FL
Contact:

#82 Postby HURAKAN » Sat Oct 03, 2009 1:50 pm

Image

It doesn't look all that bad
0 likes   

User avatar
DanieleItalyRm
Category 1
Category 1
Posts: 486
Age: 38
Joined: Mon Sep 22, 2008 7:52 am
Location: Rome - Italy - Mediterranean sea

Re: ATL : Invest 90L

#83 Postby DanieleItalyRm » Sat Oct 03, 2009 5:40 pm

supercane wrote:Where are you getting those QuikSCATs? Those are old, as the system is not as close to the Azores now as it was. The OPC analyzes the system as a 998-mb gale center from an occluded front:
Image
So does the UK Met Office (not shown). Also, unlike a pure tropical system, the wide extent of higher winds north of the center is not typical of a tropical system and suggests much of this comes from the gradient between it and a 1023-mb high to the north. The convection is highly asymmetric and mostly to the north and east of the center
Also, as stated above, any warm core is very shallow, as the 500-mb analysis shows (note that this is a TIF file).

supercane


OLd?? this is the ultime two Quickscat! no old.

http://manati.orbit.nesdis.noaa.gov/hires/

Image

Image

Image

These system very like at many north atlantic tropical cyclones (Vince, Karl, Unnamed, ecc.).. In particular cases cut off col core become in warm core tropical cylone.
The last nighy the convection present in the perfect center. Today convection asymmetric, but the asymmetric convection common in many tropical storm or depression:

90L 35 knots
Image

90L 35 knotsImage

Example:
Image

Image
0 likes   

CrazyC83
Professional-Met
Professional-Met
Posts: 33393
Joined: Tue Mar 07, 2006 11:57 pm
Location: Deep South, for the first time!

#84 Postby CrazyC83 » Sat Oct 03, 2009 6:38 pm

What was the October 2005 system like? Something comparable for sure...
0 likes   

User avatar
Macrocane
Category 5
Category 5
Posts: 4218
Age: 35
Joined: Sun May 24, 2009 5:35 pm
Location: El Salvador

Re: ATL : Invest 90L

#85 Postby Macrocane » Sat Oct 03, 2009 6:50 pm

I'm not sure if it is warm core it looks waaaaay better than Danny did.
0 likes   

User avatar
HURAKAN
Professional-Met
Professional-Met
Posts: 46086
Age: 37
Joined: Thu May 20, 2004 4:34 pm
Location: Key West, FL
Contact:

#86 Postby HURAKAN » Sat Oct 03, 2009 11:20 pm

Image

2005 subtropical storm
0 likes   

User avatar
DanieleItalyRm
Category 1
Category 1
Posts: 486
Age: 38
Joined: Mon Sep 22, 2008 7:52 am
Location: Rome - Italy - Mediterranean sea

#87 Postby DanieleItalyRm » Sun Oct 04, 2009 4:49 am

50 knots wind:
Image
Last edited by DanieleItalyRm on Sun Oct 04, 2009 7:23 am, edited 1 time in total.
0 likes   

User avatar
DanieleItalyRm
Category 1
Category 1
Posts: 486
Age: 38
Joined: Mon Sep 22, 2008 7:52 am
Location: Rome - Italy - Mediterranean sea

Re: ATL : Invest 90L

#88 Postby DanieleItalyRm » Sun Oct 04, 2009 7:20 am

Macrocane wrote:I'm not sure if it is warm core it looks waaaaay better than Danny did.

thunderstorm activity and convections is impossible in a cold core cyclone center, only in warm core cyclone possible.
0 likes   

vegastar
Category 1
Category 1
Posts: 320
Age: 47
Joined: Fri Aug 03, 2007 9:13 am
Location: Trofa, Portugal (41.33º N 8.55º W)

Re: ATL : Invest 90L

#89 Postby vegastar » Sun Oct 04, 2009 10:25 am

Definitely something going on there:

Image
0 likes   

cat.4
Tropical Wave
Tropical Wave
Posts: 3
Joined: Sun Oct 04, 2009 10:17 am

#90 Postby cat.4 » Sun Oct 04, 2009 10:39 am

垃圾的副热带气旋,哈哈哈 :lol:
0 likes   

vegastar
Category 1
Category 1
Posts: 320
Age: 47
Joined: Fri Aug 03, 2007 9:13 am
Location: Trofa, Portugal (41.33º N 8.55º W)

Re: ATL : Invest 90L

#91 Postby vegastar » Sun Oct 04, 2009 10:45 am

The disturbance passed North of Ponta Delgada METAR:

http://www.wunderground.com/history/air ... story.html

The maximum gust was 70km/h, but well away from the center.
0 likes   

User avatar
DanieleItalyRm
Category 1
Category 1
Posts: 486
Age: 38
Joined: Mon Sep 22, 2008 7:52 am
Location: Rome - Italy - Mediterranean sea

#92 Postby DanieleItalyRm » Sun Oct 04, 2009 11:06 am

Image

Image
0 likes   

User avatar
HURAKAN
Professional-Met
Professional-Met
Posts: 46086
Age: 37
Joined: Thu May 20, 2004 4:34 pm
Location: Key West, FL
Contact:

#93 Postby HURAKAN » Sun Oct 04, 2009 11:15 am

Image

Very small system
0 likes   

User avatar
DanieleItalyRm
Category 1
Category 1
Posts: 486
Age: 38
Joined: Mon Sep 22, 2008 7:52 am
Location: Rome - Italy - Mediterranean sea

#94 Postby DanieleItalyRm » Sun Oct 04, 2009 11:24 am

Evident very small warm core TC.. NHC ridiculous. Over the US coast this is a TC.
0 likes   

User avatar
senorpepr
Military Met/Moderator
Military Met/Moderator
Posts: 12542
Age: 41
Joined: Fri Aug 22, 2003 9:22 pm
Location: Mackenbach, Germany
Contact:

Re: ATL : Invest 90L

#95 Postby senorpepr » Sun Oct 04, 2009 11:55 am

DanieleItalyRm wrote:thunderstorm activity and convections is impossible in a cold core cyclone center, only in warm core cyclone possible.


That's definitely not true... convection is certainly possible in cold core systems.
0 likes   

User avatar
littlevince
S2K Supporter
S2K Supporter
Posts: 768
Joined: Fri Oct 21, 2005 10:45 am
Location: Portugal

Re: ATL : Invest 90L

#96 Postby littlevince » Sun Oct 04, 2009 12:44 pm

Curious that this perturbation after the loop to north yesterday and today return to a slightly lower latitude has recreated again the eye-like feature we have seen 2 days ago. Very exotic system with only 50 km radius :lol:

Image
0 likes   

User avatar
DanieleItalyRm
Category 1
Category 1
Posts: 486
Age: 38
Joined: Mon Sep 22, 2008 7:52 am
Location: Rome - Italy - Mediterranean sea

Re: ATL : Invest 90L

#97 Postby DanieleItalyRm » Sun Oct 04, 2009 1:21 pm

senorpepr wrote:
DanieleItalyRm wrote:thunderstorm activity and convections is impossible in a cold core cyclone center, only in warm core cyclone possible.


That's definitely not true... convection is certainly possible in cold core systems.

please you can post a cyclone cold core with mesocyclone thunderstorm -covective center?
and however it is not this case.
0 likes   

User avatar
HURAKAN
Professional-Met
Professional-Met
Posts: 46086
Age: 37
Joined: Thu May 20, 2004 4:34 pm
Location: Key West, FL
Contact:

#98 Postby HURAKAN » Sun Oct 04, 2009 2:36 pm

Image

Latest
0 likes   

leanne_uk
Tropical Storm
Tropical Storm
Posts: 214
Age: 41
Joined: Fri Sep 04, 2009 4:38 pm
Location: Loughborough countryside, Leicestershire, UK

#99 Postby leanne_uk » Sun Oct 04, 2009 2:55 pm

does not wanna go away just yet this little system :)
0 likes   

pepeavilenho
Tropical Storm
Tropical Storm
Posts: 170
Joined: Thu Jul 09, 2009 12:01 pm

#100 Postby pepeavilenho » Sun Oct 04, 2009 2:58 pm

Image

:cold:
0 likes   


Return to “2009”

Who is online

Users browsing this forum: No registered users and 54 guests