
ATL: GONZALO - Remnants - Discussion
Moderator: S2k Moderators
- Ivanhater
- Storm2k Moderator
- Posts: 11153
- Age: 38
- Joined: Fri Jul 01, 2005 8:25 am
- Location: Pensacola
Re: ATL: INVEST 99L - Discussion
Yes, the inflow arch to the north I mentioned last night is helping form a CDO over the LLC. I fully expect Gonzalo to be named today if trends continue 
Sent from my SM-G955U using Tapatalk

Sent from my SM-G955U using Tapatalk
1 likes
Michael
-
- Category 5
- Posts: 4966
- Joined: Wed Nov 14, 2012 10:43 am
-
- Category 5
- Posts: 1792
- Joined: Wed Mar 03, 2010 6:20 am
- Location: Toms River, NJ
Re: ATL: INVEST 99L - Discussion
NHC will go code red next update as this is clearly a developing TD/TS. I'm guessing they're waiting to see if the convection holds.
3 likes
-
- Category 2
- Posts: 719
- Joined: Thu Oct 11, 2018 2:46 pm
Re: ATL: INVEST 99L - Discussion
I was skeptical last night and wanted to see a little more endurance. I am on board now! This is undoubtedly a tropical depression on the cusp of becoming a tropical storm. Much better organized and 2 more days of decent conditions. Moderate to strong TS is quite plausible.
2 likes
Fran '96, Georges '98, Gordon '00, Gabrielle '01, Charley '04, Frances '04, Jeanne '04, Barry '07, Fay '08, Debby '12, Matthew '16, Emily '17, Irma '17, Michael ‘18, Elsa ‘21, Fred ‘21, Mindy ‘21, Nicole ‘22, Idalia ‘23, Debby ‘24, Helene ‘24
- HurricaneEnzo
- Category 2
- Posts: 739
- Joined: Wed Mar 14, 2018 12:18 pm
- Location: Newport, NC (Hurricane Alley)
Re: ATL: INVEST 99L - Discussion
Looks like we may be green for Gonzalo. I know it needs to sustain a little longer but appears on its way to doing just that. So much for no MDR storms in July if that is the case. I know I should fully expect the season cancel posts every year if we go a couple of weeks with no activity but it is getting a bit ridiculous. The models could show zero activity for weeks and then BOOM out of nowhere they flip and now there are storms where they were once showing nothing. Bottom line is we still aren't that good at prediction of tropical formation (especially that far out).
Last edited by HurricaneEnzo on Tue Jul 21, 2020 6:08 am, edited 3 times in total.
5 likes
Bertha 96' - Fran 96' - Bonnie 98' - Dennis 99' - Floyd 99' - Isabel 03' - Alex 04' - Ophelia 05' - Irene 11' - Arthur 14' - Matthew 16' - Florence 18' - Dorian 19' - Isaias 20' (countless other tropical storms and Hurricane swipes)
I am not a Professional Met just an enthusiast. Get your weather forecasts from the Pros!
I am not a Professional Met just an enthusiast. Get your weather forecasts from the Pros!
-
- Category 5
- Posts: 21238
- Age: 42
- Joined: Sun Sep 19, 2004 9:58 pm
- Location: Ready for the Chase.
- Contact:
Re: ATL: INVEST 99L - Discussion
Ok before I look at anything else.. someone please tell me this is at least been upgraded by the tag number ? lol
0 likes
Note: If I make a post that is brief. Please refer back to previous posts for the analysis or reasoning. I do not re-write/qoute what my initial post said each time.
If there is nothing before... then just ask
Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...
If there is nothing before... then just ask

Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...
-
- Category 5
- Posts: 2635
- Joined: Sun Aug 12, 2007 3:45 am
- Location: Florida State University
Re: ATL: INVEST 99L - Discussion
Hard to argue against the continual organization seen in the past 12 hours. Low-level circulation has become less elongated and more symmetrical:
Previous:

Current:

Banding features on the northern flank of the system are helping stave off against SAL intrusion, and effectively a protective pouch has become nested within the wave axis. These small systems can spin up quickly (but also are susceptible to sudden changes in environmental conditions as we'll observe later this week).

Most likely outcome is we see an increase to something like 60/80% by NHC, wait until next advisory to see how convection holds through the day. If the ASCAT pass in the next few hours shows a definitive surface circulation, that may force their hand though (given satellite presentation currently).
Previous:

Current:

Banding features on the northern flank of the system are helping stave off against SAL intrusion, and effectively a protective pouch has become nested within the wave axis. These small systems can spin up quickly (but also are susceptible to sudden changes in environmental conditions as we'll observe later this week).

Most likely outcome is we see an increase to something like 60/80% by NHC, wait until next advisory to see how convection holds through the day. If the ASCAT pass in the next few hours shows a definitive surface circulation, that may force their hand though (given satellite presentation currently).
7 likes
-
- Category 5
- Posts: 21238
- Age: 42
- Joined: Sun Sep 19, 2004 9:58 pm
- Location: Ready for the Chase.
- Contact:
Re: ATL: INVEST 99L - Discussion
Another thing to note is how quickly the Shear has dropped to near zero from yesterday.
and good on the CMC for being first lol
and good on the CMC for being first lol
2 likes
Note: If I make a post that is brief. Please refer back to previous posts for the analysis or reasoning. I do not re-write/qoute what my initial post said each time.
If there is nothing before... then just ask
Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...
If there is nothing before... then just ask

Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...
- Ivanhater
- Storm2k Moderator
- Posts: 11153
- Age: 38
- Joined: Fri Jul 01, 2005 8:25 am
- Location: Pensacola
Re: ATL: INVEST 99L - Discussion
This shows again how overall, global models have a hard time with these small systems.
Impressive things still want to develop even in a suppressed state over the basin.
Impressive things still want to develop even in a suppressed state over the basin.
4 likes
Michael
- ScottNAtlanta
- Category 5
- Posts: 2360
- Joined: Sat May 25, 2013 3:11 pm
- Location: Atlanta, GA
Re: ATL: INVEST 99L - Discussion
First visible this morning shows some good inflow from the south and west, and the protective band on the north side.
1 likes
The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or storm2k.org. For official information, please refer to the NHC and NWS products.
Re: ATL: INVEST 99L - Discussion

7 likes
Kendall -> SLO -> PBC
Memorable Storms: Katrina (for its Florida landfall...) Wilma Matthew Irma
Memorable Storms: Katrina (for its Florida landfall...) Wilma Matthew Irma
- ScottNAtlanta
- Category 5
- Posts: 2360
- Joined: Sat May 25, 2013 3:11 pm
- Location: Atlanta, GA
Re: ATL: INVEST 99L - Discussion
I've seen named storms that look worse than this. If you look at the true color, you can actually see cross equatorial flow into this
https://www.tropicaltidbits.com/sat/sat ... =truecolor
https://www.tropicaltidbits.com/sat/sat ... =truecolor
Last edited by ScottNAtlanta on Tue Jul 21, 2020 6:34 am, edited 1 time in total.
6 likes
The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or storm2k.org. For official information, please refer to the NHC and NWS products.
-
- Category 5
- Posts: 21238
- Age: 42
- Joined: Sun Sep 19, 2004 9:58 pm
- Location: Ready for the Chase.
- Contact:
Re: ATL: INVEST 99L - Discussion
ColdMiser123 wrote:This is very close to being a classified system if it isn't already one at this point.
While this may get named in the short-term, the mean flow in the Caribbean is still far too strong for a circulation to survive much beyond the Lesser Antilles. During which, 99L will likely open back up into a wave.
If this is a Moderate TS it wont have any issues by the time it gets to the carrib assuming it does not run into shear.
it has already doubled in size of its overall circulation which would help it with the increase flow. also assuming it does not continue to grow. and again assuming SAL or something does not get it before the carrib.
0 likes
Note: If I make a post that is brief. Please refer back to previous posts for the analysis or reasoning. I do not re-write/qoute what my initial post said each time.
If there is nothing before... then just ask
Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...
If there is nothing before... then just ask

Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...
- ScottNAtlanta
- Category 5
- Posts: 2360
- Joined: Sat May 25, 2013 3:11 pm
- Location: Atlanta, GA
Re: ATL: INVEST 99L - Discussion
This should be an interesting TWO at 8am
1 likes
The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or storm2k.org. For official information, please refer to the NHC and NWS products.
Re: ATL: INVEST 99L - Discussion
ScottNAtlanta wrote:This should be an interesting TWO at 8am
Probably the typical "If development trends continue"

9 likes
Kendall -> SLO -> PBC
Memorable Storms: Katrina (for its Florida landfall...) Wilma Matthew Irma
Memorable Storms: Katrina (for its Florida landfall...) Wilma Matthew Irma
-
- Category 5
- Posts: 4029
- Age: 28
- Joined: Mon Aug 17, 2015 4:16 pm
- Location: Ft. Lauderdale, Florida
Re: ATL: INVEST 99L - Discussion
The little Gonzalo that could?
0 likes
The posts in this forum are NOT official forecasts and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or STORM2K. For official information, please refer to products from the NHC and NWS.
Model Runs Cheat Sheet:
GFS (5:30 AM/PM, 11:30 AM/PM)
HWRF, GFDL, UKMET, NAVGEM (6:30-8:00 AM/PM, 12:30-2:00 AM/PM)
ECMWF (1:45 AM/PM)
TCVN is a weighted averaged
-
- Category 5
- Posts: 21238
- Age: 42
- Joined: Sun Sep 19, 2004 9:58 pm
- Location: Ready for the Chase.
- Contact:
Re: ATL: INVEST 99L - Discussion
Ubuntwo wrote:ScottNAtlanta wrote:This should be an interesting TWO at 8am
Probably the typical "If development trends continue"
lets hope it is at least 80 percent though lol
0 likes
Note: If I make a post that is brief. Please refer back to previous posts for the analysis or reasoning. I do not re-write/qoute what my initial post said each time.
If there is nothing before... then just ask
Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...
If there is nothing before... then just ask

Space & Atmospheric Physicist, Embry-Riddle Aeronautical University,
I believe the sky is falling...
- Extratropical94
- Professional-Met
- Posts: 3538
- Age: 30
- Joined: Wed Oct 20, 2010 6:36 am
- Location: Hamburg, Germany
- Contact:
Re: ATL: INVEST 99L - Discussion
If it keeps organizing at this rate, it will become a TS before July 24, 06Z with ease. Another possible record for 2020.
2 likes
54° 11' 59'' N, 9° 9' 20'' E
Boomer Sooner!
Go Broncos! Go Cards! Go Niners!
- Daniel
Boomer Sooner!
Go Broncos! Go Cards! Go Niners!
- Daniel
Who is online
Users browsing this forum: No registered users and 13 guests