ATL: MATTHEW - Post-Tropical - Discussion
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- cycloneye
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Re: ATL: INVEST 97L - Discussion
26/2345 UTC 11.2N 51.1W T1.0/1.0 97L -- Atlantic
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Re: ATL: INVEST 97L - Discussion
This needs to slow down. Its now moving at 25 kts. It could wind up west of the anti cyclone. No model showed this
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- Gustywind
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Re: ATL: INVEST 97L - Discussion
cycloneye wrote:26/2345 UTC 11.2N 51.1W T1.0/1.0 97L -- Atlantic
That's why i posted that (see below)... maybe showing what we were talking about yesterday night Luis ...with these expanding banding of convection in the north and northeast quadrant of 97L trying to race on more wnw course than Westerly?!
Whereas if this trend continues, islands north of Martinica could feel more effects than expected, shoud it verfies first. Let's wait and see.
From SSD... maintains 1.0 numbers while seems a bit more north in latitude...
DATE/TIME LAT LON CLASSIFICATION STORM
26/2345 UTC 11.2N 51.1W T1.0/1.0 97L
26/1745 UTC 10.2N 48.3W T1.0/1.0 97L
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Re: ATL: INVEST 97L - Discussion
Alyono wrote:This needs to slow down. Its now moving at 25 kts. It could wind up west of the anti cyclone. No model showed this
And this would inhibit strengthening ??
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- cycloneye
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Re: ATL: INVEST 97L - Discussion
00z Best Track:
AL, 97, 2016092700, , BEST, 0, 102N, 502W, 25, 1008, DB
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Re: ATL: INVEST 97L - Discussion
cycloneye wrote:00z Best Track:AL, 97, 2016092700, , BEST, 0, 102N, 502W, 25, 1008, DB
The bt position is a movement of 18 kts which is fine
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- gatorcane
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Re: ATL: INVEST 97L - Discussion
hcane27 wrote:Alyono wrote:This needs to slow down. Its now moving at 25 kts. It could wind up west of the anti cyclone. No model showed this
And this would inhibit strengthening ??
Yep and you can see what Alyono is referring to in the image below. Anticyclone is over it but there is shear ahead of it to the west:

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Re: ATL: INVEST 97L - Discussion
Alyono wrote:This needs to slow down. Its now moving at 25 kts. It could wind up west of the anti cyclone. No model showed this
what are the implications of this if it doesn't slow down and outruns the anticyclone? less chance of development? that would keep it from development till west of 70 and support the euro no? the original forecast was 20-25mph when it was still a pouch two days ago then reforcasted down to 15-20 mph. euro keeps it weak til after crossing windwards
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Robbielyn McCrary
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Re: ATL: INVEST 97L - Discussion
robbielyn wrote:Alyono wrote:This needs to slow down. Its now moving at 25 kts. It could wind up west of the anti cyclone. No model showed this
what are the implications of this if it doesn't slow down and outruns the anticyclone? less chance of development? that would keep it from development till west of 70 and support the euro no? the original forecast was 20-25mph when it was still a pouch two days ago then reforcasted down to 15-20 mph. euro keeps it weak til after crossing windwards
Even the ec slows this down dramatically
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Re: ATL: INVEST 97L - Discussion

23:45 UTC
sat view looks very ominous
http://goes.gsfc.nasa.gov/goescolor/goe ... latest.jpg
http://goes.gsfc.nasa.gov/
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Re: ATL: INVEST 97L - Discussion
Alyono wrote:robbielyn wrote:Alyono wrote:This needs to slow down. Its now moving at 25 kts. It could wind up west of the anti cyclone. No model showed this
what are the implications of this if it doesn't slow down and outruns the anticyclone? less chance of development? that would keep it from development till west of 70 and support the euro no? the original forecast was 20-25mph when it was still a pouch two days ago then reforcasted down to 15-20 mph. euro keeps it weak til after crossing windwards
Even the ec slows this down dramatically
levi cowan said it would run into some shear and that would keep it weak till after windwards.
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Robbielyn McCrary
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Re: ATL: INVEST 97L - Discussion
TJRE wrote:
23:45 UTC
sat view looks very ominous
http://goes.gsfc.nasa.gov/goescolor/goe ... latest.jpg
http://goes.gsfc.nasa.gov/
Very cool. Thanks
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Re: ATL: INVEST 97L - Discussion
0000 UTC 500mb steering layer....fwiw

http://tropic.ssec.wisc.edu/real-time/d ... oom=&time=
scroll back thru the time step box....from the above link
possible west to southwest influence (trend) has begun
Last edited by TJRE on Mon Sep 26, 2016 7:57 pm, edited 1 time in total.
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- cycloneye
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Re: ATL: INVEST 97L - Discussion
cycloneye wrote:00z Best Track:AL, 97, 2016092700, , BEST, 0, 102N, 502W, 25, 1008, DB

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Re: ATL: INVEST 97L - Discussion
Posted a couple of hours ago on model thread. I favor a western solution toward the Yucatan Channel for the storm. But I just looked at the storm loop for the first time today. Man, the system is really looking "bad"! And I mean bad as in serious. Take a look."! Very large and rolling in. 

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Re: ATL: INVEST 97L - Discussion
White indicates high rain-rate hot towers, firing on the periphery of the circulation.
This could end up being a wide core.

This could end up being a wide core.

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Re: ATL: INVEST 97L - Discussion
Alyono wrote:This needs to slow down. Its now moving at 25 kts. ...
That's the first thing which struck me when I viewed the latest IR satellite loop:

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Re: ATL: INVEST 97L - Discussion
The vorticity has been improving at all levels today, the circulation is just very large and still moving at a fast pace. It's not poorly organized compared to yesterday, that's for sure. Gradual development as expected.
lol-level vorticity at 850mb:

The 500mb vort barely registered last night, looking better today:

lol-level vorticity at 850mb:

The 500mb vort barely registered last night, looking better today:

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