ATL: MARCO - Remnants - Discussion

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Re: ATL: INVEST 97L - Discussion

#241 Postby shiny-pebble » Tue Aug 18, 2020 7:27 pm

I've heard some people say that if 97l is able to form a center in the West Caribbean it would have an anticyclone over it that would ventilate it and abate wind shear, I haven't heard many people talk about this here does anyone have any input?

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Re: ATL: INVEST 97L - Discussion

#242 Postby bob rulz » Tue Aug 18, 2020 7:36 pm

I wouldn't trust the models for cyclogenesis this year as far as I could throw them.
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Re: ATL: INVEST 97L - Discussion

#243 Postby Aric Dunn » Tue Aug 18, 2020 8:05 pm

Slowly tightening up. if we see that good convective pop tonight. expect development a little earlier.

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Re: ATL: INVEST 97L - Discussion

#244 Postby Aric Dunn » Tue Aug 18, 2020 8:44 pm

Ill just leave this right here... looking better....

Image
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Re: ATL: INVEST 97L - Discussion

#245 Postby Aric Dunn » Tue Aug 18, 2020 9:41 pm

last one for the night.

development likely sooner than expected. especially if convection continues to increase overnight.

LLC is becoming more defined. just need a good burst of convection.

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Re: ATL: INVEST 97L - Discussion

#246 Postby Aric Dunn » Tue Aug 18, 2020 9:58 pm

and here you go.. there is the LLC closed and convection firing in association with it now. ( yellow dot)

need to be watched more closely.

Image

Image
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Re: ATL: INVEST 97L - Discussion

#247 Postby 3090 » Wed Aug 19, 2020 2:12 am

Aric Dunn wrote:and here you go.. there is the LLC closed and convection firing in association with it now. ( yellow dot)

need to be watched more closely.

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

https://i.ibb.co/WxhGDS2/2.gif


Aric...you do a masterful job with your presentations. Most on this board, outside of the weather professionals, are guessers. Myself included!!! But you somehow find a way to concisely present (to the point), say what you have to say, without a lot of gibberish. Thank you!

Both systems have been moving along, as the NHC has forecasted. No surprises. While people watch the ever changing model runs and get conflicted, the NHC very seldom changes their prediction on general direction and when a system is going to intensify, or not intensify. They have been saying 97L, IF it develops into a tropical depression, it would be toward the end of this week in the NW Caribbean. The only thing the NHC has updated thus far, is the probability of 97L becoming a tropical depression. Nothing else has changed!
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Re: ATL: INVEST 97L - Discussion

#248 Postby GCANE » Wed Aug 19, 2020 3:47 am

Just like this time yesterday, a high-helicity tower fires off.
If this diurnal pattern persists, I expect tomorrow around this time should likely start spin up as it begins to tap into high TPW air from the EPAC thru Panama.
It looks like the EPAC has recovered from Genevieve and the TPW tank is nearly full.
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Re: ATL: INVEST 97L - Discussion

#249 Postby GCANE » Wed Aug 19, 2020 3:52 am

Anti-cyclone is tracking along nicely with the LL vort and pretty much on top if it.

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Re: ATL: INVEST 97L - Discussion

#250 Postby GCANE » Wed Aug 19, 2020 3:56 am

Massive TUTT in place for ventilation at 25N 53W
BTW looks like a shredder for 98L.

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Re: ATL: INVEST 97L - Discussion

#251 Postby GCANE » Wed Aug 19, 2020 4:04 am

IR Satellite Analysis shows the wave beginning to close off

Image
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Re: ATL: INVEST 97L - Discussion

#252 Postby GCANE » Wed Aug 19, 2020 5:46 am

Radar seems to indicate that the circulation is tightening up.
Vast majority of the Globals are now indicating a cane in the GoM with likely landfall in TX and some chance in LA.
Forecast as this gets into the W Carib is for the troposphere to be saturated from sea surface to tropopause.


Image
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Re: ATL: INVEST 97L - Discussion

#253 Postby 3090 » Wed Aug 19, 2020 5:58 am

GCANE wrote:Radar seems to indicate that the circulation is tightening up.
Vast majority of the Globals are now indicating a cane in the GoM with likely landfall in TX and some chance in LA.
Forecast as this gets into the W Carib is for the troposphere to be saturated.

https://i.imgur.com/oIDPfCh.png


Stronger = more east, Weaker = more west.
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Re: ATL: INVEST 97L - Discussion

#254 Postby Aric Dunn » Wed Aug 19, 2020 6:16 am

GCANE wrote:IR Satellite Analysis shows the wave beginning to close off

https://i.imgur.com/VAAdPEE.png


Its got the right stuff this morning... circ begin to develop last night. moderate convective burst this morning.. if that maintains for a decent amount of time it will tighten up the llc and we will have a TD>
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Re: ATL: INVEST 97L - Discussion

#255 Postby tailgater » Wed Aug 19, 2020 6:32 am

Looks more organized this morning on first visible satellite images. I’m thinking it will be classified tomorrow.
Image
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Re: ATL: INVEST 97L - Discussion

#256 Postby cycloneye » Wed Aug 19, 2020 7:09 am

A tropical wave located over the eastern Caribbean Sea is producing
disorganized showers and thunderstorms, along with gusty winds in
these thunderstorms. Some gradual development of this system is
possible over next day or so while it moves westward at about 15 to
20 mph across the central Caribbean Sea. After that time, the wave
is forecast to move more slowly west-northwestward, and a tropical
depression is likely to form late this week or this weekend when the
system reaches the northwestern Caribbean Sea.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 5 days...high...80 percent.
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Re: ATL: INVEST 97L - Discussion

#257 Postby stormlover2013 » Wed Aug 19, 2020 7:18 am

3090 wrote:
GCANE wrote:Radar seems to indicate that the circulation is tightening up.
Vast majority of the Globals are now indicating a cane in the GoM with likely landfall in TX and some chance in LA.
Forecast as this gets into the W Carib is for the troposphere to be saturated.

https://i.imgur.com/oIDPfCh.png


Stronger = more east, Weaker = more west.


Not always the case
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Re: ATL: INVEST 97L - Discussion

#258 Postby 3090 » Wed Aug 19, 2020 7:27 am

stormlover2013 wrote:
3090 wrote:
GCANE wrote:Radar seems to indicate that the circulation is tightening up.
Vast majority of the Globals are now indicating a cane in the GoM with likely landfall in TX and some chance in LA.
Forecast as this gets into the W Carib is for the troposphere to be saturated.

https://i.imgur.com/oIDPfCh.png


Stronger = more east, Weaker = more west.


Not always the case


In general...not always.
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Re: ATL: INVEST 97L - Discussion

#259 Postby Aric Dunn » Wed Aug 19, 2020 7:44 am

I just want to the sun to rise enough to light up the west side under the canopy.. So I can see the developing llc better.
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Re: ATL: INVEST 97L - Discussion

#260 Postby cycloneye » Wed Aug 19, 2020 7:53 am

97L INVEST 200819 1200 13.8N 71.8W ATL 30 1008
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