ATL: Ex COLIN - Discussion

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Vortmax1
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#261 Postby Vortmax1 » Sun Aug 01, 2010 5:54 pm

SAL and dry air could become a problem depending on the tracking:



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Re: ATL : INVEST 91L - DISCUSSION

#262 Postby bvigal » Sun Aug 01, 2010 6:06 pm

vbhoutex wrote:91L is still moving slowly from what I see and still hasn't consolidated as much as I think it would need to in order to really get going. I'll go out on a limb here and say TD sometime tomorrow. :cheesy: :cheesy:
In all seriousness, like I said this system is moving slowly. What I haven't seen discussed lately is the SAL. Is it gone? I don't think so. Is there more coming off of Africa fast enough to impact(catch up with) this system and maybe even slow its' development into a TC past tomorrow? Just some thoughts I have since the SAL has impacted several of the systems significantly.
:nod: Yessiree, that's right!! And how many times there was a bullish outlook by all data and then fizzled to way less? (pls Father) I'm shutting this computer down and I'll look again bright and early (2am), LOL! Have a great night, everybody!
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Re: ATL : INVEST 91L - DISCUSSION

#263 Postby ronjon » Sun Aug 01, 2010 6:09 pm

I think the system is so large it's going to take some time to reach TD status - perhaps getting to 40W before developing. I don't see any organization now to make it a TD.

http://www.ssd.noaa.gov/goes/east/catl/loop-avn.html
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#264 Postby KWT » Sun Aug 01, 2010 6:11 pm

Its always not easy to tell with IR when you've got such deep convection blowing up, it won't get upgraded now till at least tomorrow morning, unless of course a Ship report comes in of course.
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#265 Postby Cape Verde » Sun Aug 01, 2010 6:13 pm

Okay, just making a mental note here.... Way too early to know for sure, but if this poses a threat to the Gulf Coast, it's perhaps 10 days away. Here in Texas, we won't begin our panic until at least next Sunday.
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#266 Postby Macrocane » Sun Aug 01, 2010 6:22 pm

Vortmax1 wrote:SAL and dry air could become a problem depending on the tracking:





I don't think that SAL will be a problem for it, IMO it's south and large enough to be affected.
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#267 Postby KWT » Sun Aug 01, 2010 6:24 pm

Yeah I agree Macrocane, its got a pretty large precip shield with it and I shouldn't think the SAL will be any issue at all, esp as it gets further west and the SAL weakens.
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Re: ATL : INVEST 91L - DISCUSSION

#268 Postby Hurrilurker » Sun Aug 01, 2010 6:29 pm

I'm no expert, but it looks to me like, at least in terms of convection, the two centers are combining in the latest frame. Actually there were three, two close to each other on the west side, and another separated to the east, but they're all coming together now.
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Re: ATL : INVEST 91L - DISCUSSION

#269 Postby cycloneye » Sun Aug 01, 2010 6:34 pm

Latest microwave image.Between 11n-12n is the center located.

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Re: ATL : INVEST 91L - DISCUSSION

#270 Postby MGC » Sun Aug 01, 2010 6:34 pm

Where is the big EC trough I ordered?

I would be surprised if 91L is not upgraded by tomorrow morning. Looks like an ULL forming just to the NE of the Leeward Islands which might provide the shear to hold this one down in a few days. Until then, condition look to be condusive for development and futher intensification....would not be surprised if we have Colin sometime tomorrow. Looks like it will pass close to the northern Leewards....MGC
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Re: ATL : INVEST 91L - DISCUSSION

#271 Postby Florida1118 » Sun Aug 01, 2010 6:34 pm

Up to 90%
A LARGE AREA OF LOW PRESSURE LOCATED ABOUT 900 MILES WEST-SOUTHWEST
OF THE CAPE VERDE ISLANDS CONTINUES TO SHOW SIGNS OF ORGANIZATION
...BUT DOES NOT APPEAR TO HAVE A WELL-DEFINED SURFACE CENTER.
HOWEVER...CONDITIONS APPEAR FAVORABLE FOR ADDITIONAL DEVELOPMENT
AND A TROPICAL DEPRESSION COULD FORM AT ANY TIME DURING THE NEXT
COUPLE OF DAYS AS THIS SYSTEM MOVES WEST-NORTHWESTWARD AT 10 TO 15
MPH. THERE IS A HIGH CHANCE...90 PERCENT...OF TROPICAL CYCLONE
FORMATION DURING THE NEXT 48 HOURS.
Last edited by Florida1118 on Sun Aug 01, 2010 6:36 pm, edited 2 times in total.
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Re: ATL : INVEST 91L - DISCUSSION

#272 Postby cycloneye » Sun Aug 01, 2010 6:36 pm

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Re: ATL : INVEST 91L - DISCUSSION

#273 Postby smw1981 » Sun Aug 01, 2010 6:36 pm

cycloneye wrote:Here are the past tracks from the 18z best track position of 9.8N-36.3W.Some biggies there.

http://i27.tinypic.com/29ntqir.jpg


Only 4 recurves out to sea (and 2 of those made landfall up north!) from the other storms that have formed over the years where 91L is presently. All of the rest of the storms made it into the gulf, and most of them hit at least one of the islands. Not time for us in the US to be filling our cars just yet, but if I was in the islands, I would be paying very close attention. Lets all hope for a complete fish, because (as it looks right now), 91L will be Colin, and Colin will be big...
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Re: ATL : INVEST 91L - DISCUSSION

#274 Postby Ivanhater » Sun Aug 01, 2010 6:37 pm

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#275 Postby KWT » Sun Aug 01, 2010 6:45 pm

Looks pretty much ready to upgrade right now IMO, nice blow-up right over the center...

As for the past historical map, I wonder if there are any more fishes/recurvers if you raise the location upto 11N instead of 9.8...but possibly not I suppose.
Given we have a likely upper trough I do slightly have to favour the storms that hit Newfoundland...so even they weren't total fishes really!
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#276 Postby SeminoleWind » Sun Aug 01, 2010 6:46 pm

90%? Really?
i can understand them waiting for it to separate from the itcz, but but i dont think i have ever seen one over 80%.
come on Collin get with the program already. :roll:
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#277 Postby KatDaddy » Sun Aug 01, 2010 6:49 pm

There is SAL ahead but its much less than a few weeks. This will become TS Colin. Its a large system and I hope he will be fish.
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#278 Postby KWT » Sun Aug 01, 2010 6:54 pm

SeminoleWind, Ts Blas in the EPAC got to 100% before it was upgraded to a TD!

The best thing we hope for now is a sort of Hurricane Karen evolution in 2007, otherwise we obviously take a big risk with hoping the upper trough does do the job.
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Re: ATL : INVEST 91L - DISCUSSION

#279 Postby cycloneye » Sun Aug 01, 2010 6:55 pm

The big question trackwise in a short to medium range is if it crosses the NE Caribbean islands or moves by them to the NE. IMO,the key to that may be how much westward movement it takes before turning more wnw to nw.

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#280 Postby Vortex » Sun Aug 01, 2010 6:58 pm

Latest IR is very impressive...Anti-cyclone building right over it and is encompassed by a large envelope..System certainly continues to organize this evening...
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