Two African waves worth mentioning
There are two African tropical waves worth mentioning today, though neither looks particularly threatening. A tropical wave near 12N 45W, about 1200 miles east of the Lesser Antilles Islands (97 L), is moving west at 15 - 20 mph. This wave is now surrounded by an area of very dry air from the Sahara Desert. The dry air has disrupted most of the wave's heavy thunderstorm activity, and will continue to make it difficult for this system to develop over the next 2 - 3 days. Wind shear is a modest 10 knots over the disturbance, and should remain in the moderate 10 - 15 knot range over the next 2 - 3 days. Thereafter, shear is expected to rise to 20 - 30 knots. This morning's QuikSCAT pass showed no evidence of a surface circulation, and only a modest wind shift associated with 97L. The National Hurricane Center is giving this system a low (less than 30% chance) of developing into a tropical depression in the next 48 hours.
A second tropical wave now approaching the northern Lesser Antilles Islands is under 30 knots of wind shear, and has little prospect of development due to the high shear. However, the wave will bring heavy rain to the islands over the next two days.
None of the computer models are forecasting tropical storm development over the next seven days, and I don't expect either of the two African waves mentioned today to develop over at least the next three days.

Figure 1. Current satellite image of African wave 97L, 1200 miles east of the Lesser Antilles Islands.
I'll have an update Sunday afternoon.
Jeff Masters
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If that isn't a "B", then I need new glasses.
I may upgrade to "C"...
It looks rather impressive.
If it does that could be trouble for me
wow~
Thanks 456, I was noticing that as well. Good tip :)
What island....longitude?
To see how it explodes?... hehe...
I see we have 97L again.
It's looking much better today.
They have never been run on 97L, even the first time it was named an invest. Maybe now they'll make it a priority.
I know, I just wonder why not though.
Agreed. That's why I asked about the rapid intensification.
I'm not very concerned with the global models at this stage, especially not the GFDL which is very poor in the cyclogenesis phase. I think the LBAR and BAMS more accurately depict what's happening in its present phase of development...and just good ol' natural "seeing is believing" look as sats, etc, than models.
If it's able to take full advantage of the current low shear conditions and warm SSTs then it should be able to fight off any low enough shear... say 20k or less and still keep its identity.
Hehe... Pot... be careful for what you wish!!!
Hey, Pottery. That was my thinking too last evening. But, if it's getting its act together, the natural coriolis initially would nudge it a few degrees north even, despite steering I believe.
which met??
Only the TWC? I can think of a few others. But heck we are all humans, I have been wrong with 93L, and the world hasn't ended.
The Dust is pretty much gone out ahead of it the prior wave was like a sponge and absorbed most of it.
In my opinion SAL will no longer be an issue for this system... since the SAL that has traversed through the CARIB and now in the S GOM has been decreasing and/or moving into the EPAC.
invest 97L this time yesterday
invest 97L right now
SAL is no longer a factor. Plenty of moisture in the area and it's creating good lift now on its own.
Thanks! Appreciate it!
A it becomes a td at the 8:00pm update
B it becomes a td tomorrow updates
C it becomes a td tuesday
D it dosen't become anything but the invest that it is now
E it becomes ts ana in any of the above dates
Ohh so after looking up some credentials you then decide now... hehe.
I vote "E"
B
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