ATL: ELSA - Post-Tropical - Discussion

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GCANE
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Re: ATL: ELSA - Hurricane - Discussion

#1681 Postby GCANE » Fri Jul 02, 2021 9:33 pm

StormTracker wrote:
GCANE wrote:Looking at LL Water Vapor, MLC maybe taking a turn more to the west

MLC follows the LLC, right?


In a tilted vort column, with the LLC moving west, yes.
However, strong helicity towers in the MLC drives angular momentum from the mid levels down to the surface causing the LLC to reform back towards the MLC.
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Re: ATL: ELSA - Hurricane - Discussion

#1682 Postby eastcoastFL » Fri Jul 02, 2021 9:33 pm

wxman57 wrote:I'm not seeing it strengthening. May be a TS already. Perhaps the Euro, ICON, and recently the GFS are right in weakening it significantly over the next 24-36 hrs.


Don’t they all weaken it due to land interaction? Gfs seems to slowly strengthen up until it interacts with Jamaica and then again with Cuba. HWRF just dodges all the islands
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Re: ATL: ELSA - Hurricane - Discussion

#1683 Postby StormTracker » Fri Jul 02, 2021 9:36 pm

GCANE wrote:
StormTracker wrote:
GCANE wrote:Looking at LL Water Vapor, MLC maybe taking a turn more to the west

MLC follows the LLC, right?


In a tilted vort column, with the LLC moving west, yes.
However, strong helicity towers in the MLC drives angular momentum from the mid levels down to the surface causing the LLC to reform back towards the MLC.

Got it! Thanks!
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Re: ATL: ELSA - Hurricane - Discussion

#1684 Postby GCANE » Fri Jul 02, 2021 9:36 pm

Big outflow coming off that new blob now.
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Re: ATL: ELSA - Hurricane - Discussion

#1685 Postby GCANE » Fri Jul 02, 2021 9:42 pm

3 hot towers look to be popping up
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Re: ATL: ELSA - Hurricane - Discussion

#1686 Postby GrayLancer18 » Fri Jul 02, 2021 9:43 pm

Elsa is another case of a system missing one ingredient to make it historic in terms of power.

Had it been going 10 mph less, we might've be looking now at a major hurricane with a probability of dethroning Emily 2005 as July's most powerful hurricane.
(Can it still be a major? Maybe, but the odds are slipping by each hour it doesn't slow down to stack.)

One has to question though if Elsa is a signal that the Caribbean will be the hotspot of this year and if it will be fertile for stronger storms come the peak of the season....
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Re: ATL: ELSA - Hurricane - Discussion

#1687 Postby cane5 » Fri Jul 02, 2021 9:47 pm

I don’t see many comments on the high pressure system and the timing of when that will lift out. Also the trough to the north ?
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Re: ATL: ELSA - Hurricane - Discussion

#1688 Postby InfernoFlameCat » Fri Jul 02, 2021 9:51 pm

What is dmax
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Re: ATL: ELSA - Hurricane - Discussion

#1689 Postby SFLcane » Fri Jul 02, 2021 9:51 pm

Last edited by SFLcane on Fri Jul 02, 2021 9:51 pm, edited 1 time in total.
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Re: ATL: ELSA - Hurricane - Discussion

#1690 Postby GCANE » Fri Jul 02, 2021 9:51 pm

Black is eclipsing the red.
That center hot tower is kicking out a huge upper-tropospheric anvil.

Image
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Re: ATL: ELSA - Hurricane - Discussion

#1691 Postby cane5 » Fri Jul 02, 2021 9:52 pm

If you live in South Florida I have been watching the weather guy on Channel 6 at 5pm…he is really on the ball when it comes to big storm systems , very impressed.
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Re: ATL: ELSA - Hurricane - Discussion

#1692 Postby chaser1 » Fri Jul 02, 2021 9:53 pm

Elsa is looking severally vertical challenged this evening
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Re: ATL: ELSA - Hurricane - Discussion

#1693 Postby GCANE » Fri Jul 02, 2021 9:54 pm

InfernoFlameCat wrote:What is dmax


Its the time of day that allows moist air to rise the fastest into the upper atmosphere causing very strong thunderstorms to fire off.
Occurs around sunrise.
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Re: ATL: ELSA - Hurricane - Discussion

#1694 Postby InfernoFlameCat » Fri Jul 02, 2021 9:58 pm

Elsa went from exposed llc to trying to form an eye rapidly in two hours. Appears I was wrong about relocation. Elsa wow wow wow.
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Re: ATL: ELSA - Hurricane - Discussion

#1695 Postby Hammy » Fri Jul 02, 2021 9:58 pm

GrayLancer18 wrote:Elsa is another case of a system missing one ingredient to make it historic in terms of power.

Had it been going 10 mph less, we might've be looking now at a major hurricane with a probability of dethroning Emily 2005 as July's most powerful hurricane.
(Can it still be a major? Maybe, but the odds are slipping by each hour it doesn't slow down to stack.)


This seems to be a problem with lower latitude storms in July in general, which probably contributes to there not being a lot of stronger storms during the month.
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Re: ATL: ELSA - Hurricane - Discussion

#1696 Postby ConvergenceZone » Fri Jul 02, 2021 9:59 pm

wxman57 wrote:I'm not seeing it strengthening. May be a TS already. Perhaps the Euro, ICON, and recently the GFS are right in weakening it significantly over the next 24-36 hrs.


I love ya wxman!!! But just curious, have you ever been really bullish on a hurricane strengthening before? Maybe I'm just missing it, as I've never seen you be bullish before...But perhaps I just wasn't reading the forum when you were....Anyway, just a fair question :). It could just be my imagination....
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Re: ATL: ELSA - Hurricane - Discussion

#1697 Postby Ken711 » Fri Jul 02, 2021 10:00 pm

11:00 PM AST Fri Jul 2
Location: 14.8°N 66.3°W
Moving: WNW at 29 mph
Min pressure: 995 mb
Max sustained: 80 mph
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Re: ATL: ELSA - Hurricane - Discussion

#1698 Postby Ken711 » Fri Jul 02, 2021 10:02 pm

NHC 11:00 pM discussion:

The latest GFS and UKMET models indicate that Elsa will be
moving into the center of a 300-200-mb synoptic-scale anticyclone,
which would produce enhanced outflow jets to the north and south of
the cyclone, resulting in significant strengthening. If Elsa ends up
'threading-the-needle' between Haiti, Jamaica, and Cuba, then
subsequent intensity forecasts may have to be increased similar to
the much stronger HWRF model.
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Re: ATL: ELSA - Tropical Storm - Discussion

#1699 Postby msbee » Fri Jul 02, 2021 10:05 pm

abajan wrote:
Stormybajan wrote:
Stormybajan wrote:PEOPLE THIS HAS TO BE A HURRICANE THE SOUTH OF THE ISLAND IS GETTING HAMMERED!!!!!! Has to be atleast 95 mph gusts!!!!!


14 hours later just got back electricity. Surely was the strongest we've had since Tomas in 2010, whenever a system comes from the south of the island its 100% the most dangerous then. Hurricane Elsa was.A.RIDE! I'm just hoping Haiti and Jamaica are not affected as badly :cry:

Glad to hear your power's been restored. Mine went off just after noon and returned at around 4:40 pm. My water was off for a while too, but it's back on now. Hopefully we get through the rest of the hurricane season without getting slammed by another tropical cyclone. First, it was the freak thunderstorm outbreak just 15 days ago, now a hurricane. Good grief!


I have seen lots of pictures of bad flooding on Barbados. Good to hear from both of you.
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Re: ATL: ELSA - Hurricane - Discussion

#1700 Postby eastcoastFL » Fri Jul 02, 2021 10:07 pm

Ken711 wrote:NHC 11:00 pM discussion:

The latest GFS and UKMET models indicate that Elsa will be
moving into the center of a 300-200-mb synoptic-scale anticyclone,
which would produce enhanced outflow jets to the north and south of
the cyclone, resulting in significant strengthening. If Elsa ends up
'threading-the-needle' between Haiti, Jamaica, and Cuba, then
subsequent intensity forecasts may have to be increased similar to
the much stronger HWRF model.


Well that’s not what I was hoping to see
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