2021 Tropical Waves Thread

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Re: Tropical Wave east of the Lesser Antilles

#101 Postby Aric Dunn » Wed Jun 23, 2021 12:35 pm

If this keeps up there will be a center reformation slightly to ene with that convection.. and.. wellllll you know..

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Strong Tropical Wave has emerged from West Africa (Is Invest 95L)

#102 Postby cycloneye » Wed Jun 23, 2021 12:37 pm

A strong tropical wave is expected to emerge off the coast of
Africa over the next day or so. Some gradual development of this
system is possible by early next week while moving generally
westward over the far eastern Atlantic.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.


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Re: Tropical Wave in West Africa

#103 Postby CyclonicFury » Wed Jun 23, 2021 12:52 pm

Usually we don't see waves marked on the TWO before they exit Africa until late August or September. :double:
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Re: Tropical Wave in West Africa

#104 Postby AnnularCane » Wed Jun 23, 2021 12:55 pm

CyclonicFury wrote:Usually we don't see waves marked on the TWO before they exit Africa until late August or September. :double:


Yep. I was just thinking we don't see that in June very often. :lol:
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Re: Strong Tropical Wave in West Africa

#105 Postby toad strangler » Wed Jun 23, 2021 1:10 pm

Spooky
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Re: Strong Tropical Wave in West Africa

#106 Postby Hypercane_Kyle » Wed Jun 23, 2021 1:14 pm

12z ECMWF has a moderate TS by 72 hours.
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Re: Strong Tropical Wave in West Africa

#107 Postby Stormybajan » Wed Jun 23, 2021 1:23 pm

Anyone getting 2004-2005 back to back hyperactive season vibes? :spam:
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Re: Strong Tropical Wave in West Africa

#108 Postby cycloneye » Wed Jun 23, 2021 1:28 pm

Already looks impressive.

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Re: Tropical Wave east of the Lesser Antilles

#109 Postby Aric Dunn » Wed Jun 23, 2021 1:33 pm

Too much more of this and they will have to give it an invest finally.
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Re: Strong Tropical Wave in West Africa

#110 Postby Hypercane_Kyle » Wed Jun 23, 2021 1:35 pm

Hypercane_Kyle wrote:12z ECMWF has a moderate TS by 72 hours.


Depends to 1002mb and makes it all the way to the islands before weakening, likely due to more hostile conditions in the Eastern Caribbean. It's late June, not September lol.
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Re: Strong Tropical Wave in West Africa

#111 Postby MarioProtVI » Wed Jun 23, 2021 1:44 pm

If this becomes Danny I’m gonna have serious 2017 flashbacks since the MDR could be primed for its worst season since that year. (June MDR storm followed by extremely strong MDR with the likes of Harvey part 1/Irma/Jose/Maria/Lee part 1).
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Re: Strong Tropical Wave in West Africa

#112 Postby Deshaunrob17 » Wed Jun 23, 2021 1:59 pm

Euro has a reasonable outcome IMO- a weak system.. However, what bothers me is that the Euro is known for being the conservative model in the MDR and the fact it has a lon tracked cyclone makes me wonder :double:
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Re: Strong Tropical Wave in West Africa

#113 Postby AutoPenalti » Wed Jun 23, 2021 1:59 pm

I'm probably going to be in the minority here but I don't see much in the way of favorability that would make this wave go further than an Invest. The blow-up is likely the amplification of the MJO crossing over which will help it in the short-term but beyond 3-4 days it's going to encounter a wall of unfavorable upper-level winds.
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Re: Tropical Wave east of the Lesser Antilles

#114 Postby Stormybajan » Wed Jun 23, 2021 2:08 pm

Aric Dunn wrote:Too much more of this and they will have to give it an invest finally.


Certainly the best its looked but another interesting aspect of this wave is the fact it's never been racing towards the west like they usually do this time of year. If it keeps this up until tonight lets say 8 pm maybe they tag it as an invest although once again chances of that is low
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Re: Tropical Wave east of the Lesser Antilles

#115 Postby Aric Dunn » Wed Jun 23, 2021 2:16 pm

Stormybajan wrote:
Aric Dunn wrote:Too much more of this and they will have to give it an invest finally.


Certainly the best its looked but another interesting aspect of this wave is the fact it's never been racing towards the west like they usually do this time of year. If it keeps this up until tonight lets say 8 pm maybe they tag it as an invest although once again chances of that is low


Well it has come to a near dead stop today...

and they cant ignore it much longer.. Convection is now building near the center.. large curved inflow band is setting up..

this is far better developed than many Td/TS and its not even an invest. lol
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Re: Strong Tropical Wave emerging from West Africa

#116 Postby aspen » Wed Jun 23, 2021 2:30 pm

The 12z CMC doesn’t show any development, but seeing how it barely even develops 95E, I’m going to exclude this run.

The 12z ICON develops this into a weak TD/TS that makes landfall in the Lesser Antilles at 177 hours out.

I’m shocked that the Euro of all models is showing a bona-fide TC developing in only a few days and surviving all the way across the MDR. I would’ve expected such a solution from the GFS, but it’s also having difficulty turning the wave into a TC.
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Re: Tropical Wave east of the Lesser Antilles

#117 Postby tolakram » Wed Jun 23, 2021 2:50 pm

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Re: Strong Tropical Wave emerging from West Africa

#118 Postby HurricaneFrances04 » Wed Jun 23, 2021 2:52 pm

Quite a few of the 12Z Euro ensemble members are pretty bullish

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Re: Strong Tropical Wave emerging from West Africa

#119 Postby weeniepatrol » Wed Jun 23, 2021 2:52 pm

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Re: Strong Tropical Wave emerging from West Africa

#120 Postby EquusStorm » Wed Jun 23, 2021 2:58 pm

Just as a frame of reference, we've only had two named storms since we've been naming them in 1950 develop in the MDR east of the Lesser Antilles in June - Ana in 1979 and Bret in 2017. Ensemble guidance strongly suggests we may get a third with this, and it would be much further east than either of those two. Not that it would be long lived, but if entering the Atlantic doesn't make it immediately pause there's little reason it couldn't briefly make the cut.
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