How can a LLC continue to exist without convection ?

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Pileus
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How can a LLC continue to exist without convection ?

#1 Postby Pileus » Sun Jul 24, 2005 12:46 pm

What are the mechanics involved in continuing the strong circulation in
Franklin, if the main convection is displaced as in current VIS ? I'm just
trying to understand some of the dynamics of what I can see versus fluid dynamics or whatever you'd like to call it. Thanks.
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#2 Postby Innotech » Sun Jul 24, 2005 12:48 pm

my guess is both momentum and hte coriolis efect are maintaining the LLc for a short time. It should eventually dissipate and go extratropical soon.
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#3 Postby Steve » Sun Jul 24, 2005 12:55 pm

Think of the air in 3D. Just because the convection may be gone along with the feedback mechanisms, you still have a "depressed" pocket of low pressure. You see the proverbial naked swirls in the central Pacific a lot long after their upper support headed for California or the Baja. Eventually they'll fill in or be absorbed into some other energy field.

Steve
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#4 Postby Pebbles » Sun Jul 24, 2005 12:56 pm

Imagine you have a top... your fingers spin the top and you let go... top still spins even thought your not giving it energy anymore. The spinning motion takes a while to slow down before the top falls over.

Now imagine a tropical storm, clouds are the fingers. Storm is the top....
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#5 Postby Pileus » Sun Jul 24, 2005 1:01 pm

Thanks, fascinating stuff !
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mike18xx

#6 Postby mike18xx » Sun Jul 24, 2005 6:24 pm

LLCs can exist for several days without convection, and over a week provided they fire off a burst once or twice a day, keeping pressures low.
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#7 Postby Ixolib » Sun Jul 24, 2005 6:28 pm

Pebbles wrote:Imagine you have a top... your fingers spin the top and you let go... top still spins even thought your not giving it energy anymore. The spinning motion takes a while to slow down before the top falls over.

Now imagine a tropical storm, clouds are the fingers. Storm is the top....


If you spin a top in the southern hemisphere, which way does it rotate?
j/k :D

And why do they call it a "top" anyway?
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#8 Postby WeatherEmperor » Sun Jul 24, 2005 6:34 pm

its sorta happening right now with Franklin.

<RICKY>
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#9 Postby MGC » Sun Jul 24, 2005 7:22 pm

These naked swirls can and do last for days. The move with the low level flow and sometime become removed from the shear and convection redevelops again. This is not uncommon......MGC
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#10 Postby jabber » Sun Jul 24, 2005 8:11 pm

I like naked swirls :)
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#11 Postby Steve H. » Sun Jul 24, 2005 8:55 pm

Though I have a real hard time dealing with Franklin Naked! :eek: He begin to move to the SW at a better clip. Who knows what he may do now.
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#12 Postby WeatherEmperor » Sun Jul 24, 2005 8:59 pm

jabber wrote:I like naked swirls :)


Id much rather prefer to see Emily naked then Franklin....

<RICKY>
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#13 Postby Swimdude » Sun Jul 24, 2005 9:04 pm

WeatherEmperor wrote:
jabber wrote:I like naked swirls :)


Id much rather prefer to see Emily naked then Franklin....

<RICKY>



Hahahaha WOW. :eek:
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#14 Postby Swimdude » Sun Jul 24, 2005 9:07 pm

Swimdude wrote:
WeatherEmperor wrote:
jabber wrote:I like naked swirls :)


Id much rather prefer to see Emily naked then Franklin....

<RICKY>



Hahahaha WOW. :eek:


On second thought, yeah, me too. :lol:
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#15 Postby Pileus » Sun Jul 24, 2005 9:23 pm

Ask a question about LLC's and look where it has gone. Emily's naked
swirl. :roll: J/K
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#16 Postby dvdweatherwizard » Sun Jul 24, 2005 9:25 pm

:eek:
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Jim Cantore

#17 Postby Jim Cantore » Sun Jul 24, 2005 9:46 pm

:roflmao:
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