ATL: IDA - Remnants - Discussion

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Ubuntwo
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Re: ATL: INVEST 99L - Discussion

#21 Postby Ubuntwo » Tue Aug 24, 2021 7:20 pm

SoupBone wrote:
toad strangler wrote:
SoupBone wrote:Where do I sign up for the paid version of the Euro? I want to see the 18Z.


Weatherbell??


I don't know if they have it or not.

Weather.us (cheapest) and weathermodels both have the 6/18z euro.
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Re: ATL: INVEST 99L - Discussion

#22 Postby cycloneye » Tue Aug 24, 2021 7:28 pm

Kingarabian wrote:
cycloneye wrote:Fnmoc Is a good source from the Navy. ATCF comming shortly.

https://www.fnmoc.navy.mil/tcweb/cgi-bin/tc_home.cgi

Yeah they sometimes go ahead of ATCF but 99L should be in soon.


ATCF is now up.
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Re: ATL: INVEST 99L - Discussion

#23 Postby cycloneye » Tue Aug 24, 2021 7:42 pm

11.9N - 69.0W.

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Re: ATL: INVEST 99L - Discussion

#24 Postby SoupBone » Tue Aug 24, 2021 7:43 pm

cycloneye wrote:11.9N - 69.0W.

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


So is that where they will initialize models?
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Re: ATL: INVEST 99L - Discussion

#25 Postby cycloneye » Tue Aug 24, 2021 7:45 pm

SoupBone wrote:
cycloneye wrote:11.9N - 69.0W.

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


So is that where they will initialize models?


Well is not the models thread but from that position the Bam models begin.
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Re: ATL: INVEST 99L - Discussion

#26 Postby Sciencerocks » Tue Aug 24, 2021 8:35 pm

Image
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#27 Postby beoumont » Tue Aug 24, 2021 8:44 pm

It's about time for another Carla, don't ya think?

Image
Last edited by beoumont on Tue Aug 24, 2021 9:32 pm, edited 1 time in total.
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#28 Postby BobHarlem » Tue Aug 24, 2021 8:46 pm

Interesting Forecast discussion from NWS Corpus Christi
The long term forecast gets rather...complicated. We kick off the
extended with the upper ridge slowly shifting off to the northeast.
This will open the door for an inverted trough to slide across the
Gulf while bringing some deeper moisture into the region. Isolated
to scattered showers and thunderstorms will be possible daily as we
head into the weekend.

All eyes will be on the tropics over the course of the weekend. The
NHC is currently monitoring an area of potential development (60%
chance) over the Caribbean. This feature is expected to develop into
a low pressure system while heading into the SW Gulf by Sunday. The
aforementioned ridge looks to weaken Saturday and Sunday as an upper
level shortwave dips across the Northern Plains. This would provide
a window for this disturbance to move northwest across the Gulf.
Recent runs of the GFS/CMC/ICON are all steering this system towards
the Middle Texas coast. With that said, the recent ECMWF take it to
the Louisiana cost so there is still some spread with this system.
Track and intensity will be narrowed in over the next several days.

Regardless of the eventual track, deep tropical moisture will arrive
late this weekend with PWATs skyrocketing to the 2.7-2.9" range.
This will allow for widespread showers and thunderstorms with
locally heavy rainfall possible. As expected, models are trending
towards a heavy rainfall event but we can`t pin down any numbers at
this time as it will be heavily dependent on the track. In addition
to the heavy rainfall, we can expect an increase in our rip current
and coastal flooding threats as hazardous conditions develop over
our waters.

Taking a quick look at temperatures, we will stay warm through the
weekend with heat indices generally in the 105-109 range. Increasing
rain chances/cloud cover this weekend will result in temps a few
degrees cooler heading into early next week.

REMINDER: it is never too early to prepare as we head into the peak
of Hurricane Season. All are urged to stay alert and keep up with
the latest information in regards to the tropics at NHC.noaa.gov
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#29 Postby grapealcoholic » Tue Aug 24, 2021 8:49 pm

beoumont wrote:It's about time for another Carla, don't ya think?

[url]https://i.postimg.cc/XYVFLkLd/Carla.png [/url]free image sharing

Got a feeling Louisiana isn't quite out of the woods yet
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#30 Postby IcyTundra » Tue Aug 24, 2021 8:53 pm

grapealcoholic wrote:
beoumont wrote:It's about time for another Carla, don't ya think?

[url]https://i.postimg.cc/XYVFLkLd/Carla.png [/url]free image sharing

Got a feeling Louisiana isn't quite out of the woods yet


They sure aren't.
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#31 Postby SoupBone » Tue Aug 24, 2021 8:54 pm

For those that are curious, the Yucatan Peninsula offers little to no elevation to disrupt an inner core.

Image
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#32 Postby Iceresistance » Tue Aug 24, 2021 8:55 pm

SoupBone wrote:For those that are curious, the Yucatan Peninsula offers little to no elevation to disrupt an inner core.

https://i.imgur.com/7PetA8k.jpeg


Hurricane Grace just the week before demonstrated this . . .
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Winter 2020-2021 :cold:

All observations are in Tecumseh, OK unless otherwise noted.

Winter posts are focused mainly for Oklahoma & Texas.

Take any of my forecasts with a grain of salt, refer to the NWS, SPC, and NHC for official information

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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#33 Postby SconnieCane » Tue Aug 24, 2021 9:58 pm

Iceresistance wrote:
SoupBone wrote:For those that are curious, the Yucatan Peninsula offers little to no elevation to disrupt an inner core.

https://i.imgur.com/7PetA8k.jpeg


Hurricane Grace just the week before demonstrated this . . .


I feel like Wilma 2005 weakened rather substantially over the Yucatan...but it slowed and meandered over land for some time, correct? It had also already come down quite a bit from its 882 mb peak by the time of landfall, and it was still able to re-intensify into a strong Cat. 3 for the Florida landfall, with some help from a favorable trough interaction.
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#34 Postby cheezyWXguy » Tue Aug 24, 2021 10:14 pm

SconnieCane wrote:
Iceresistance wrote:
SoupBone wrote:For those that are curious, the Yucatan Peninsula offers little to no elevation to disrupt an inner core.

https://i.imgur.com/7PetA8k.jpeg


Hurricane Grace just the week before demonstrated this . . .


I feel like Wilma 2005 weakened rather substantially over the Yucatan...but it slowed and meandered over land for some time, correct? It had also already come down quite a bit from its 882 mb peak by the time of landfall, and it was still able to re-intensify into a strong Cat. 3 for the Florida landfall, with some help from a favorable trough interaction.

True, Wilma spent a lot more time over the peninsula and made landfall during an erc, allowing for further dry air intrusion. Quite a different situation here
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#35 Postby WiscoWx02 » Tue Aug 24, 2021 10:17 pm

Some food for thought this evening regarding 99L.

 https://twitter.com/DerekOrtt/status/1430218354774757386


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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#36 Postby NevadaFan18 » Tue Aug 24, 2021 10:27 pm

[Tweet https://twitter.com/tornadictwx/status/1430369349211197444


[/Tweet]

Definitely don’t like seeing the highest SST values of the GOM right next to the TX-LA coast
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#37 Postby IcyTundra » Wed Aug 25, 2021 12:54 am

Odds are up to 30/70 now.

A broad area of low pressure is expected to form over the western
Caribbean Sea in a couple of days from a tropical wave currently
located over the central Caribbean Sea. Environmental conditions are
forecast to be conducive for development, and a tropical depression
is likely to form late this week or this weekend while the system
moves northwestward over the northwestern Caribbean Sea, near or
across the Yucatan Peninsula of Mexico, and into the western Gulf of
Mexico by Sunday.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...high...70 percent.
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#38 Postby grapealcoholic » Wed Aug 25, 2021 12:56 am

Interesting watching the convective outflow right now completely wreck that ULL
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#39 Postby Sciencerocks » Wed Aug 25, 2021 2:19 am

Image
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Re: ATL: INVEST 99L - Discussion - Central Caribbean

#40 Postby mrbagyo » Wed Aug 25, 2021 2:33 am

oh wow, Is it October now in the Atlantic?
Image
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