Tropical Wave about to emerge West Africa (Is Invest 92L)

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Re: Tropical Wave in West Africa (Pouch 25L)

#321 Postby GeneratorPower » Sun Aug 28, 2016 6:02 pm

The most important point of the run is that it's a Carribean runner. That's pretty well established by day 6-7 of the run which is a reasonably accurate timeframe. Once it gets that low it's trouble regardless of final landfall point.
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Re: Tropical Wave in West Africa (Pouch 25L)

#322 Postby abajan » Sun Aug 28, 2016 6:17 pm

I'm not convinced this will exit Africa at the high latitude shown by the models and TWO.
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Re: Tropical Wave in West Africa (Pouch 25L)

#323 Postby LarryWx » Sun Aug 28, 2016 6:19 pm

If this more southerly track trend continues, maybe even folks as far south as abajan in Barbados will need to deal with this though that remains to be seen.
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Re: Tropical Wave in West Africa (Pouch 25L)

#324 Postby TheStormExpert » Sun Aug 28, 2016 6:35 pm

Once again development is delayed on the 18z GFS, wouldn't surprise me to see development dropped as a whole on one of tomorrow's runs.
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Re: Tropical Wave in West Africa (Pouch 25L)

#325 Postby cycloneye » Sun Aug 28, 2016 6:51 pm

A tropical wave is expected to move offshore of the west coast of
Africa on Monday night or Tuesday. Conditions are expected to be
favorable for development of this system later this week while it
moves westward at 15 to 20 mph over the tropical eastern Atlantic.
* Formation chance through 48 hours...low...near 0 percent
* Formation chance through 5 days...medium...50 percent


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Re: Tropical Wave in West Africa (Pouch 25L)

#326 Postby cycloneye » Sun Aug 28, 2016 8:43 pm

Position of Pouch 25L.Another 24-36 hours before it emerges the coast.

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Re: Tropical Wave in West Africa (Pouch 25L)

#327 Postby abajan » Sun Aug 28, 2016 9:04 pm

LarryWx wrote:If this more southerly track trend continues, maybe even folks as far south as abajan in Barbados will need to deal with this though that remains to be seen.


Even if it passes 1000 miles to our north, there's still a chance we may get blasted with strong (even TS force) southwesterly winds from a feeder band or two. I've experienced that a couple times. And sometime ago there was a hurricane named Gabrielle which was, to the best of my recollection, somewhere in the vicinity of Bermuda and it had a long feeder band which set off tornadoes in Trinidad, which is south of us. It also sent large swells into the Eastern Caribbean as a whole and damaged coastal properties here in Barbados.
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Re: 2016 Global Model Runs Discussion (Out to Day 16)

#328 Postby stormwise » Sun Aug 28, 2016 9:54 pm

Image
Last edited by AJC3 on Sun Aug 28, 2016 10:52 pm, edited 1 time in total.
Reason: Edited/moved to Pouch 25L thread - this isn't an "outbreak", it's a representation of the normalized spread of ensemble member solutions for 25L
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Re: Tropical Wave in West Africa (Pouch 25L)

#329 Postby LarryWx » Sun Aug 28, 2016 9:59 pm

1. Luis, I see it has risen somewhat in latitude (from 11N, 1E to 13N, 7W) but it still has a shot at coming across the CV's near 13-14N if trends continue.

2. Abajan, very interesting! Effects when the storm center is that far away...wow.
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Re: Tropical Wave in West Africa (Pouch 25L)

#330 Postby AJC3 » Sun Aug 28, 2016 10:58 pm

abajan wrote:
LarryWx wrote:If this more southerly track trend continues, maybe even folks as far south as abajan in Barbados will need to deal with this though that remains to be seen.


Even if it passes 1000 miles to our north, there's still a chance we may get blasted with strong (even TS force) southwesterly winds from a feeder band or two. I've experienced that a couple times. And sometime ago there was a hurricane named Gabrielle which was, to the best of my recollection, somewhere in the vicinity of Bermuda and it had a long feeder band which set off tornadoes in Trinidad, which is south of us. It also sent large swells into the Eastern Caribbean as a whole and damaged coastal properties here in Barbados.


I remember Gabrielle (1989) well, as I had just started studying meteorology during the fall of my junior year at Cornell. Up until that time, it was probably the LARGEST storm I could recall seeing in the Atlantic basin on satellite imagery. IIRC It caused some serious high surf/swell issues up and down the eastern U.S. seaboard, even as distant as it was. It still impresses me to this day.
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Re: Tropical Wave in West Africa (Pouch 25L)

#331 Postby WeatherEmperor » Sun Aug 28, 2016 11:25 pm

Just a touch north compared to 18z

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Re: Tropical Wave in West Africa (Pouch 25L)

#332 Postby Hurricaneman » Sun Aug 28, 2016 11:28 pm

this run could run through the greater antilles and Cuba

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Re: Tropical Wave in West Africa (Pouch 25L)

#333 Postby WeatherEmperor » Sun Aug 28, 2016 11:30 pm

Definitely more north than 18z. Approachin PR and going WNW

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Re: Tropical Wave in West Africa (Pouch 25L)

#334 Postby Hurricaneman » Sun Aug 28, 2016 11:31 pm

Could be a Florida threat this run

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Tropical Wave in West Africa (Pouch 25L)

#335 Postby WeatherEmperor » Sun Aug 28, 2016 11:36 pm

Hugging the north coast of Hispanola still moving WNW. It was south of Hispanola on 18z Fwiw.....

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Re: Tropical Wave in West Africa (Pouch 25L)

#336 Postby WeatherEmperor » Sun Aug 28, 2016 11:45 pm

In southern bahamas moving WNW. Suspect a FLA landfall. Margin of error with land interaction is small. Any deviation could destroy it over the islands or bring it south as a carib cruiser.

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Re: Tropical Wave in West Africa (Pouch 25L)

#337 Postby WeatherEmperor » Sun Aug 28, 2016 11:48 pm

In Bahamas offshore South Florida moving WNW. Gonna stop posting as it is now pure fantasy land.

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Re: Tropical Wave in West Africa (Pouch 25L)

#338 Postby Alyono » Mon Aug 29, 2016 1:09 am

lets not forget that ONLY the MU develops this

No other model is doing anything with it. I'd say development chances are no higher than 25%
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Re: Tropical Wave in West Africa (Pouch 25L)

#339 Postby AutoPenalti » Mon Aug 29, 2016 1:10 am

I see what looks like a trough at HR 252?
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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)

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Re: Tropical Wave in West Africa (Pouch 25L)

#340 Postby Dylan » Mon Aug 29, 2016 1:32 am

Alyono wrote:lets not forget that ONLY the MU develops this

No other model is doing anything with it. I'd say development chances are no higher than 25%


I respect the fact that you're a professional Meteorologist, and maybe you weren't aware, but the ECMWF also has been developing this disturbance. In fact, the ECMWF is coming in stronger on this run compared to the 12z run.
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