Central Atlantic Tropical Wave (Is Invest 91L)

[Hurricaneman]

The 0zGFS wants to split this wave in 2 with 2 separate systems, can’t discount that with the pattern but I would think either the northern or southern one would win out and not both. It’s a really odd setup

The Northern system wins out

[AJC3]

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
756 PM EDT Sun Aug 30 2020

...TROPICAL WAVES...

A tropical wave extends from 06N-17N with axis along 31W, moving
W at 10 kt. There is no deep convection associated with the wave
as this time.

[AJC3]

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
516 UTC Mon Aug 31 2020

...TROPICAL WAVES...

A tropical wave extends from 06N-17N with axis along 32W, moving
W at 10 kt. Isolated moderate convection is within 120 nm of the
wave axis.

[Ryxn]

Down to 10%

Gone for good? Or will it respawn when it passes the Lesser Antilles? Granted it keeps its vorticity...

4. Another tropical wave is located over the eastern Atlantic Ocean,
several hundred miles southwest of the Cabo Verde Islands. This
system is producing little shower activity, and further development
of this system is not expected.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...10 percent.

[Hurricaneman]

Down to 10%

Gone for good? Or will it respawn when it passes the Lesser Antilles? Granted it keeps its vorticity...

4. Another tropical wave is located over the eastern Atlantic Ocean,
several hundred miles southwest of the Cabo Verde Islands. This
system is producing little shower activity, and further development
of this system is not expected.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...10 percent.

The models are showing this combining with the wave in west Africa, a rare wave merger

[gatorcane]

12Z CMC animation. The model looks quite bullish, weak steering flow as well:

https://i.postimg.cc/63TvC8ZJ/gem-z850-vort-atl-fh72-240.gif

How do you get these really large model run images?

Tropical Tidbits has a “forecast GIF” blue button for each model run where you can specify the start and end hours. The button is on the bottom-right of model image. You can download the file and then upload to an image hosting site like postimage.org before posting here.

[AJC3]

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
630 PM EDT Mon Aug 31 2020

...TROPICAL WAVES...

A central Atlantic tropical wave has an axis along 37W from 17N
southward, moving W at 10-15 kt. Scattered moderate convection is
noted from 08N to 10N between 37W and 40W.

[Extratropical94]

A small area of low pressure has formed about midway between the
Windward Islands and west Africa. Upper-level winds are marginally
conducive for some slow development this week as the system
meanders in the central tropical Atlantic Ocean.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...low...20 percent.

[floridasun78]

Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 PM EDT Tue Sep 1 20201. Showers and thunderstorms associated with a small area of low pressure about midway between the Windward Islands and west Africa appear to be slowly becoming better organized. Some additional development of this system is possible this week as the system meanders in the central tropical * Formation chance through 48 hours...low...20 percent. Tropical Weather Outlook Atlantic Ocean. * Formation chance through 5 days...low...30 percent.

[floridasun78]

rea that nhc watching is area by 40w blob:https://www.tropicaltidbits.com/99ad91f8-0f78-48c0-86d6-879d9bbfe123

[cycloneye]

Invest 91L is up