Attn: Derek, AirForcemet, etc. : What is THAT?

[Windy]

http://www.ssd.noaa.gov/PS/TROP/DATA/RT/float2-ir4-loop.html

That friggin' HUGE area of convection east of Jeanne? It's bigger than the friggin' hurricane! Does this pose any threat of developing into a tropical system of its own?

[Scorpion]

I think its part of Jeanne.

[CaptinCrunch]

IT'S A TWIN OR SOON WILL BE

[sprinterblue]

This area of convection is not being wrapped around Jeanne. i believe it's called a short wave trough and has the potential to develop if jeanne gets eaten by the mountains.

[msbee]

I"d like to know what that is too.
The center of Jeanne never passed that clsoe to us but that "blob" gave us some signifianct thunder storms and rainfall.

[cape_escape]

This area of convection is not being wrapped around Jeanne. i believe it's called a short wave trough and has the potential to develop if jeanne gets eaten by the mountains.

Like Whoa! So, what your're saying in essance is that Jeanne has some back-up? Yikes! As if one's not enough! I don't like the sound of that!

[schmita]

Hello? AirForceMet, Derek somebody. Can this truly develop as a seperate entity? It's been on us for days !!!!!!! Bad thunder and lighting an rain.......
bump

[ohiostorm]

Now if Jeanne dies and this area develoops, will it stay Jeanne or get a new name?

[hibiscushouse]

Keeping this ttt.

[Wthrman13]

It's nothing special. It's simply an outer band of Jeanne that happens to be rather active right now. There is virtually no chance of it "splitting off" and developing on it's own.

[frankthetank]

It looks scary on the sat loop...It could form into another hurricane and be back up, in case jean #1 doesn't cause enough death and destruction...

[CaluWxBill]

Orographic lifting from a Jeanne rainband over PR, combined with Shear out of the N at the upper levels. Really they are just intense thundershowers produced by PR topography.

[mascpa]

Excuse my ignorance but what does "orographic" mean? Thanks.

[clueless newbie]

Orographic lifting from a Jeanne rainband over PR, combined with Shear out of the N at the upper levels. Really they are just intense thundershowers produced by PR topography.

I am no meteorolog, but this is nonsense. The thunderstorms start way too far soutwest from PR for that to be true.

Have a look at the long range radar from San Juan. It almost looks like there is a countervortex (clockwise) rotating just north of St. Thomas.

[Windy]

bump -- seems nobody knows the answer to this. Hopefully a professional met will wander into this topic...

[zoeyann]

I think the pros are taking a well deserved break today.

[Innotech]

a couple models actuallyp icked up on that disturbance coming out of Jeanne before. I didnt think it would happen but there you go.

[schmita]

Let's rename this question so the Mets see it. How about a shout out to Derek, AirForceMet etc. Can we change the title or have to do this all over again.

We are right under this thing. For days now. I think it broke off before Jeanne got to PR. I think Jeanne was south of St. Croix when the weather first hit us.

[Wthrman13]

I don't want to play this card, but I answered your question, and I have two degrees in meteorology: a B.S, and an M.S. . Again, what it is is simple, why it's so pronounced is another question. But, it has virtually no chance of becoming a distinct entity. It's part of Jeanne's structure.

[borderPatrol2329]

Very interesting! While I am not meteorologist, the degree of convection, coupled with the thunderstorm activity would seem to indicate a cold pool aloft. The outflow from this disturbed area (NW) would seem to indicate there may be some upper level shear that has developed immediately behind Jeanne. It looks like a very disorganized collection of thunderstorms to me. If it is, it should be diurnal in nature, and should really decrease in intensity a couple of hours after sunset.