African tropical wave: present state and future

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Anonymous

African tropical wave: present state and future

#1 Postby Anonymous » Fri Jun 20, 2003 3:13 pm

Actually, I'm rather impressed by its current satellite appearance. The outflow pattern is well established in the southern quadrant, and at least fair in the other quadrants. Unlike most waves at this time of year, deep convection actually blossomed AFTER it exited the African coast. Convection remains deep as I type, though not quite as strong as it was earlier today. Satellite animations hint in rotation, indicative of a possible weak low level circulation developing near 8N 24W, though this cannot be confirmed yet.

And the environment? So-so where it is right now, brutal ahead. At its present location, shear is not all that strong, SSTs are plenty warm, but the air is somewhat dry (typical for June). Not the best conditions you can have, but not completely hostile either. IMO such an environment translates to either no change in strength, or even slight organization. With that being said, it is not impossible for slow development from this over the next day or so.

BUT...there's a catch. The models come in agreement on intensifying the shear zone to the west of the wave during the near future. Once this system hits 40W...say in 48 hours...BAM. Right smack-dab into the shear. This will halt the potential for development, and if it's somehow a TD by then, it will die. Oh, and I almost forgot to mention that the air is less saturated further ahead. Dry air = storm in the emergency room. Not a pretty sight if you're the kind of person that likes seeing stuff get their act together.

To sum it up...don't be surprised if we see some slow organization during the next day or so. Conditions, in the mean time, are marginally favorable. I'm not even ruling out a TD, but as it moves further west it will encounter a more hostile environment. Don't expect a TS; simply due to the lack of time to strengthen. Graphic I made on this wave is below.

Image[/img]
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#2 Postby cycloneye » Fri Jun 20, 2003 3:27 pm

Agree with the anaylisis that you made Rob and it is moving against climotology but It shows something that I dont like here in Puerto Rico and that is the Cv season will be more active than the past 3 seasons and more low latitude systems may form and threat the caribbean but hopefully all go away to fish.
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