ATL: BETA - Remnants - Discussion
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Re: ATL: INVEST 90L - Discussion
Is it me or did the center reform closer to the convection over the last few hours?
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Re: ATL: INVEST 90L - Discussion
They may even find a storm tomorrow 
Edit: Hammy it’s not just you. I think convection may be building closer to it now. Just shows how quick these things just pop close to home..

Edit: Hammy it’s not just you. I think convection may be building closer to it now. Just shows how quick these things just pop close to home..
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Re: ATL: INVEST 90L - Discussion
Since we'll need watches as soon as a track can be reliably drawn, I think we get PTC 22 at 4 am? Unless it's already a TC?
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Re: ATL: INVEST 90L - Discussion
Comparing the 04Z ASCAT-C pass with satellite, I would be fairly confident now that we have a tropical depression. We'll see what the night shift at the NHC thinks, but TD 22 seems like a reasonable assessment.
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Re: ATL: INVEST 90L - Discussion
Gut feeling is that this system may develop slightly but will not be a threat to the northern Gulf Coast - again, this is just a gut feeling. I'm thinking it's more of worry for Mexico or S. TX.
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Re: ATL: INVEST 90L - Discussion
I would kill for a visible shot. Can someone shine some light please?
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Re: ATL: INVEST 90L - Discussion
Craters wrote:GCANE wrote:High-helicity towers going up.
Didn't I just say this yesterday?
GCANE, every time you start saying stuff like this, nasty things invariably start to happen. Who are you really?...
LOL
Just been watching stuff like this for some time and have read a few met papers.
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- northjaxpro
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Re: ATL: INVEST 90L - Discussion
This system is well on its way. I definitely would not be shocked at all if Recon finds a decent TS upon their arrival later today.
Also, the 00Z EURO keeps this pinned down for several days over the Western GOM, then moves the cyclone slowly north/northeast beginning Tuesday and develops it into a 987 mb Cat 1 TC , making landfall in 192 hours near Gramd Isle Louisiana (9/25 00Z Friday)
Also, the 00Z EURO keeps this pinned down for several days over the Western GOM, then moves the cyclone slowly north/northeast beginning Tuesday and develops it into a 987 mb Cat 1 TC , making landfall in 192 hours near Gramd Isle Louisiana (9/25 00Z Friday)
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- Extratropical94
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Re: ATL: INVEST 90L - Discussion
Special TWO: 90/90
Thunderstorm activity has continued to increase and become better
organized this morning in association with a well-defined low
pressure system located over the southwestern Gulf of Mexico.
Upper-level winds are gradually becoming more conducive for
development and, if this recent development trend continues,
a tropical depression or a tropical could form later today. The
low is expected to meander over the southwestern Gulf of Mexico for
the next day or so before moving slowly northward to
northeastward on Friday and Saturday. An Air Force Reserve
reconnaissance aircraft is scheduled to investigate the disturbance
this afternoon.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 5 days...high...90 percent.
organized this morning in association with a well-defined low
pressure system located over the southwestern Gulf of Mexico.
Upper-level winds are gradually becoming more conducive for
development and, if this recent development trend continues,
a tropical depression or a tropical could form later today. The
low is expected to meander over the southwestern Gulf of Mexico for
the next day or so before moving slowly northward to
northeastward on Friday and Saturday. An Air Force Reserve
reconnaissance aircraft is scheduled to investigate the disturbance
this afternoon.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 5 days...high...90 percent.
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54° 11' 59'' N, 9° 9' 20'' E
Boomer Sooner!
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- Daniel
Boomer Sooner!
Go Broncos! Go Cards! Go Niners!
- Daniel
Re: ATL: INVEST 90L - Discussion
Comparing IR Satellite Analysis and CIMSS, it surprisingly appears GFS has initialized this well.
All the way from the boundary-layer and 700mb vort, mid-level circulations, and the Rossby wave.
GFS forecast maybe becoming more reliable for this one.
All the way from the boundary-layer and 700mb vort, mid-level circulations, and the Rossby wave.
GFS forecast maybe becoming more reliable for this one.
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Re: ATL: INVEST 90L - Discussion
Still under the anticyclone and no sign of any PV Streamers nearby.
Looks like this will be a solid warm core.
Looks like this will be a solid warm core.
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Re: ATL: INVEST 90L - Discussion
IR Satellite analysis showing classic TD wind field with estimated maximum winds of 31 knots


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- cycloneye
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Re: ATL: INVEST 90L - Discussion

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Re: ATL: INVEST 90L - Discussion
Could be a stretched N.E/S.W. COC trying to develop around 22N and 95W. I don't think we've got a true LLC quite developed yet but with a building anticyclone aloft, we very well may by late today. The window between T.D. and T.S will likely be 12 hr.'s or less.
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Andy D
(For official information, please refer to the NHC and NWS products.)
(For official information, please refer to the NHC and NWS products.)
Re: ATL: INVEST 90L - Discussion
I guess TD21 or Wilfred is coming today...another record is about to be flushed away.
It’s crazy how we’ve been tracking this disturbance for over a week — even before Sally’s invest was designated — and it could be around in the Gulf for another week.
It’s crazy how we’ve been tracking this disturbance for over a week — even before Sally’s invest was designated — and it could be around in the Gulf for another week.
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I am only a meteorology enthusiast who knows a decent amount about tropical cyclones. Look to the professional mets, the NHC, or your local weather office for the best information.
I am only a meteorology enthusiast who knows a decent amount about tropical cyclones. Look to the professional mets, the NHC, or your local weather office for the best information.
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