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PTC SIXTEEN easily named at any time. Interests along NE Gulf-SE US should expect Tropical Storm conditions this weekend
Days since last H. Landfall - US: Any 41 (Dorian) , Major: 372 (Michael) Florida - Any: 372 (Michael) Major: 372 (Michael)
22.9N 95.2W
Wind: 40MPH
Pres: 1005mb
Moving:
Nne at 9 mph
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Archives 2000s >> 2005 News Talkbacks

Margie
Senior Storm Chaser


Reged: Fri
Posts: 1191
Loc: Twin Cities
Re: Happy New Year -- from Zeta!?!
      Tue Jan 03 2006 10:59 AM

It looks like now that the shear is reducing, with the lopsided convection, it is starting to oscillate a bit. I don't know if it was tilted a bit from the SW shear, if the LLC is going to reform under the curved band of convection (I kind of doubt that) or it is just trying to get lined up vertically. Or maybe it is moving in response to that weak upper low Clark mentioned.

Anyway, now that it appears it is about to make it past that trough (which wasn't too certain last night) I was surprised that they kept the forecast to 55kts for the next 24-36 hours...maybe they're just waiting until this aft to see if the trough splits, before increasing the intensity forecast. We can assume because Zeta's a hybrid, slightly cooler water temps won't affect it too adversely, and with the lower shear, it's likely going to intensify. Right now I don't see any reason it couldn't make it to say 75-90kts for a short time, if it gets in the right spot. But I don't know so much, so maybe Clark or HF will post more reasons pro or con with regards to the extent of possible strengthening over the next day or so.

Edit--

The quikscat link is back. 1742 UTC showed Zeta not that strong at the surface, centered at just about 23N41W, which seems a little odd. Guess it really did oscillate around.

Zeta's convection is almost all sheared off. The southernmost part of the TC is close to an area of 40kt of shear, dropping off to around 20 kts just north of the center, coming from the WSW. Instead of enhancing the convection, shear from this direction pushed it away, possibly because this air was drier or coming from a different height (possibly higher?).

However it is very close to an area of low shear that is approaching. Now it would benefit Zeta to more a little further north, but it looks like since Zeta weakened it is being steered WSW by the lower level flow. We have seen hybrids can survive w/very little convection. Zeta should be sticking around until the lower shear moves closer, or it gets an opportunity to move further north, where it will be able to strengthen.

Since Zeta's convection was enhanced by shear yesterday, and destroyed by shear today, it is clear that height and direction (and perhaps humidity level) of the various levels of shear are critical to an intensity forecast.

Got the 2006 signature going
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Katrina's Surge: http://www.wunderground.com/hurricane/Katrinas_surge_contents.asp

Edited by Margie (Tue Jan 03 2006 03:18 PM)

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Entire topic
Subject Posted by Posted on
* Happy New Year -- from Zeta!?! Clark Tue Jan 03 2006 10:59 AM
. * * Re: Happy New Year -- from Zeta!?! Lee-Delray   Thu Jan 05 2006 10:37 AM
. * * Re: Happy New Year -- from Zeta!?! Randrew   Thu Jan 05 2006 11:21 AM
. * * Re: Happy New Year -- from Zeta!?! Spoken   Tue Jan 03 2006 04:43 AM
. * * Re: Happy New Year -- from Zeta!?! Random Chaos   Tue Jan 03 2006 09:27 AM
. * * Re: Happy New Year -- from Zeta!?! ltpat228   Tue Jan 03 2006 04:37 PM
. * * Re: Happy New Year -- from Zeta!?! Allison   Tue Jan 03 2006 04:45 PM
. * * Re: Happy New Year -- from Zeta!?! Lee-Delray   Tue Jan 03 2006 05:59 PM
. * * Re: Happy New Year -- from Zeta!?! ltpat228   Tue Jan 03 2006 08:23 PM
. * * Re: Happy New Year -- from Zeta!?! eduardo sanchez   Tue Jan 03 2006 05:54 PM
. * * Re: Happy New Year -- from Zeta!?! Margie   Tue Jan 03 2006 06:10 PM
. * * Re: Happy New Year -- from Zeta!?! Randrew   Tue Jan 03 2006 09:06 PM
. * * Re: Happy New Year -- from Zeta!?! Random Chaos   Tue Jan 03 2006 09:30 PM
. * * Re: Happy New Year -- from Zeta!?! Margie   Tue Jan 03 2006 09:49 PM
. * * Re: Happy New Year -- from Zeta!?! Clark   Wed Jan 04 2006 02:01 AM
. * * Re: Happy New Year -- from Zeta!?! Margie   Wed Jan 04 2006 11:45 AM
. * * Zeta!?! danielwAdministrator   Wed Jan 04 2006 03:13 AM
. * * Re: Zeta!?! Margie   Wed Jan 04 2006 12:28 PM
. * * Re: Zeta!?! Clark   Wed Jan 04 2006 12:47 PM
. * * Goodbye Zeta and, finally, 2005 Margie   Wed Jan 04 2006 01:53 PM
. * * Re: Goodbye Zeta and, finally, 2005 Randrew   Thu Jan 05 2006 04:17 AM
. * * Re: Goodbye Zeta and, finally, 2005 Randrew   Thu Jan 05 2006 04:25 AM
. * * Re: Goodbye Zeta and, finally, 2005 eduardo sanchez   Wed Jan 04 2006 06:04 PM
. * * Re: Goodbye Zeta and, finally, 2005 Margie   Wed Jan 04 2006 06:15 PM
. * * Re: Goodbye Zeta and, finally, 2005 Random Chaos   Wed Jan 04 2006 08:13 PM
. * * [Jaws music] Margie   Wed Jan 04 2006 09:09 PM
. * * Re: [Jaws music] Clark   Thu Jan 05 2006 02:27 AM
. * * Re: [Jaws music] Margie   Thu Jan 05 2006 11:48 AM
. * * Re: [Jaws music] Frog   Thu Jan 05 2006 01:23 PM
. * * Re: [Jaws music] Margie   Thu Jan 05 2006 01:57 PM
. * * Are we there yet? Margie   Thu Jan 05 2006 02:19 PM
. * * Re: Are we there yet? Randrew   Thu Jan 05 2006 03:25 PM
. * * Re: Are we there yet? eduardo sanchez   Thu Jan 05 2006 04:37 PM
. * * Re: Are we there yet? Frog   Thu Jan 05 2006 05:32 PM
. * * Re: Are we there yet? Lee-Delray   Thu Jan 05 2006 04:57 PM
. * * Re: [Jaws music] Randrew   Thu Jan 05 2006 04:31 AM
. * * Re: [Jaws music] Frog   Thu Jan 05 2006 06:03 AM
. * * Re: [Jaws music] Randrew   Thu Jan 05 2006 10:37 AM
. * * Re: [Jaws music] Clark   Thu Jan 05 2006 01:23 PM
. * * Re: [Jaws music] Domino   Thu Jan 05 2006 05:06 PM
. * * Re: [Jaws music] Clark   Thu Jan 05 2006 05:26 PM
. * * Re: [Jaws music] Frog   Thu Jan 05 2006 06:52 PM
. * * Re: [Jaws music] Clark   Thu Jan 05 2006 08:24 PM
. * * Re: [Jaws music] HanKFranK   Thu Jan 05 2006 11:12 PM
. * * Re: [Jaws music] Not Logged MM   Fri Jan 06 2006 11:28 AM
. * * Brazilian Blob Randrew   Fri Jan 06 2006 12:35 PM
. * * Re: Brazilian Blob HanKFranK   Fri Jan 06 2006 02:03 PM
. * * 2005 Hurricane Season Almost OVER! Storm Hunter   Fri Jan 06 2006 03:28 PM
. * * Ok, everybody...big collective sigh! Margie   Fri Jan 06 2006 03:51 PM
. * * Interesting Season Randrew   Fri Jan 06 2006 04:42 PM
. * * Re: [Jaws music] Random Chaos   Wed Jan 04 2006 11:13 PM
. * * Re: Happy New Year -- from Zeta!?! CaneTrackerInSoFl   Tue Jan 03 2006 09:57 PM
. * * Re: Happy New Year -- from Zeta!?! Margie   Tue Jan 03 2006 11:04 PM
. * * Re: Happy New Year -- from Zeta!?! Randrew   Tue Jan 03 2006 09:45 PM
. * * Re: Happy New Year -- from Zeta!?! Margie   Tue Jan 03 2006 10:59 AM
. * * Re: Happy New Year -- from Zeta!?! Doombot!   Sun Jan 01 2006 02:09 PM
. * * Re: Happy New Year -- from Zeta!?! HanKFranK   Sun Jan 01 2006 03:54 PM
. * * Re: Happy New Year -- from Zeta!?! Margie   Sun Jan 01 2006 05:41 PM
. * * Re: Happy New Year -- from Zeta!?! Random Chaos   Mon Jan 02 2006 08:38 PM
. * * Re: Happy New Year -- from Zeta!?! Margie   Mon Jan 02 2006 09:03 PM
. * * Re: Happy New Year -- from Zeta!?! Clark   Mon Jan 02 2006 10:59 PM
. * * Re: Happy New Year -- from Zeta!?! Goosus   Tue Jan 03 2006 01:15 AM
. * * Re: Happy New Year -- from Zeta!?! UKCloudgazer   Tue Jan 03 2006 03:53 AM
. * * Re: Happy New Year -- from Zeta!?! CaneTrackerInSoFl   Mon Jan 02 2006 09:57 PM
. * * Re: Happy New Year -- from Zeta!?! emackl   Fri Dec 30 2005 01:41 PM
. * * Re: Happy New Year -- from Zeta!?! ChessieStorm   Fri Dec 30 2005 01:44 PM
. * * Re: Happy New Year -- from Zeta!?! Jenny   Fri Dec 30 2005 03:14 PM
. * * Re: Happy New Year -- from Zeta!?! Margie   Fri Dec 30 2005 03:54 PM
. * * Re: Happy New Year -- from Zeta!?! eduardo sanchez   Fri Dec 30 2005 04:40 PM
. * * Re: Happy New Year -- from Zeta!?! Frog   Sat Dec 31 2005 05:56 AM
. * * Re: Happy New Year -- from Zeta!?! *DELETED* eduardo sanchez   Sat Dec 31 2005 06:18 AM
. * * Re: Happy New Year -- from Zeta!?! Random Chaos   Sat Dec 31 2005 09:50 AM
. * * Re: Happy New Year -- from Zeta!?! HanKFranK   Sat Dec 31 2005 12:27 PM
. * * Re: Happy New Year -- from Zeta!?! Margie   Sat Dec 31 2005 02:40 PM
. * * Re: Happy New Year -- from Zeta!?! HanKFranK   Sat Dec 31 2005 11:10 PM
. * * Re: Happy New Year -- from Zeta!?! Clark   Sun Jan 01 2006 01:59 AM
. * * Re: Happy New Year -- from Zeta!?! Doombot!   Sun Jan 01 2006 02:24 AM
. * * Re: Happy New Year -- from Zeta!?! eduardo sanchez   Sun Jan 01 2006 09:13 AM
. * * Re: Happy New Year -- from Zeta!?! Rich B   Sun Jan 01 2006 06:47 AM
. * * Modern Marvels TDW   Sun Jan 01 2006 08:56 AM
. * * Re: Happy New Year -- from Zeta!?! Random Chaos   Sun Jan 01 2006 12:54 AM
. * * Re: Happy New Year -- from Zeta!?! Random Chaos   Fri Dec 30 2005 07:00 PM
. * * Re: Happy New Year -- from Zeta!?! Margie   Fri Dec 30 2005 07:44 PM
. * * Re: Happy New Year -- from Zeta!?! Clark   Fri Dec 30 2005 10:08 PM
. * * Zeta, we hardly knew ya Margie   Fri Dec 30 2005 11:12 PM
. * * Re: Happy New Year -- from Zeta!?! Clark   Fri Dec 30 2005 11:15 PM
. * * Re: Happy New Year -- from Zeta!?! Multi-Decadal Signal   Sat Dec 31 2005 04:22 AM
. * * Re: Happy New Year -- from Zeta!?! ltpat228   Sat Dec 31 2005 12:34 PM
. * * Re: Happy New Year -- from Zeta!?! Hugh   Sat Dec 31 2005 01:03 PM
. * * Re: Happy New Year -- from Zeta!?! eduardo sanchez   Sat Dec 31 2005 05:25 AM
. * * Re: Happy New Year -- from Zeta!?! Margie   Fri Dec 30 2005 11:19 PM
. * * Re: Happy New Year -- from Zeta!?! Random Chaos   Fri Dec 30 2005 11:54 AM
. * * Re: Happy New Year -- from Zeta!?! CaneTrackerInSoFl   Fri Dec 30 2005 12:45 PM

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