ATL: ISAAC - Post-Tropical - Discussion

[tolakram]

Big 30 frame live loop. Wait for it to load, then speed it up for best view.

http://wwwghcc.msfc.nasa.gov/cgi-bin/ge ... mframes=30

You can clearly get an idea of the current motion from this, but again I'm not sure if that LLC is dipping back south or wobbling as it becomes the dominate center.

[ObsessedMiami]

Interesting graphic from The Weather Channel:

http://i45.tinypic.com/r20xtv.jpg

I rather like that warning system. It gets a general message to the layperson very quickly. I saw it this morning for the first time. Sort of a DEFCON for Tropical weather.

[Sanibel]

That's technically "The Fist".

[tolakram]

latest, 1740z (1:40PM)

[wxwatcher1999]

latest, 1740z (1:40PM)

http://img571.imageshack.us/img571/784/zztemp.jpg

That just does not look all that organized to me

[Aric Dunn]

yes its developing a very nice curved band.

[deltadog03]

That's technically "The Fist".

Agreed! If thats not "The Fist" IDK what is...

[BensonTCwatcher]

much more organized since convection if firing over teh LLC and feeders and curved banding is now starting to "feed" the center. dry air sill in this overall but looks like convention is back on the increase overall.

[tropicwatch]

The visible satelite loop is starting to present a good center of circulation and Isaac looks like it is on a mission now instead of hee hawing around.

[vbhoutex]

Big 30 frame live loop. Wait for it to load, then speed it up for best view.

http://wwwghcc.msfc.nasa.gov/cgi-bin/ge ... mframes=30

You can clearly get an idea of the current motion from this, but again I'm not sure if that LLC is dipping back south or wobbling as it becomes the dominate center.

Looked at it at several speeds. It appears to me that it is wobbling on a W to WNW course still. I still don't see the NW course, but that could just be me. I still think there is a lot of dry air in the lower levels, but he does seem to be getting rid of it. Perhaps we will see a more "complete" and denser coverage as the moisturizing of the lower levels continues. His intensification does seem to indicate that this should be happening.

[robbielyn]

I think this thing is well right of trop points.


Could spell a closer track to SW Florida.


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No its not its right on track for the moment. but could chng if models are right.

[Aric Dunn]

recon finding so far 60mph winds. with a couple 70kt fl level winds.

[Jevo]

I just saw on CNN in my break room that FL Gov. Rick Scott would not order evacuations of the FL Keys... I thought to myself "Keys residents don't even get out of bed for anything weaker than a Cat 3"

[KWT]

So interesting, that long loop shows nicely the circulations within the broader circulation going around, with the NW motion being very clear indeed.

The fact that its really getting going as it heads towards land is not a good thing, these types of systems nearly always do better over land.

[tolakram]

Latest, Hi Res, 1745z images



Large View: http://img253.imageshack.us/img253/2341/zzbigview.jpg

[ozonepete]

Right now the mountains are not causing a problem because the north side of Isaac's flow is up against them. As it passes the Barahona peninsula (hump on the south center of island) the flow into the northwest side will be a downsloping, drying flow that will really interrupt the core.

[Extratropical94]

Recon is extrapolating a 998.5 mb pressure and there's no wind shift yet, still SSE winds at 40 knots.

[Vortex]

Much better organization this afternoon...Where it emerges will be crticial on many levels!

[adam0983]

Does anyone know what the effects might be in Palm Beach County?

[Aric Dunn]

yeah looks like with the winds measured that pressure maybe down in the 994 range.