ATL: LEE - Remnants - Discussion

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SunnyThoughts
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#1281 Postby SunnyThoughts » Thu Sep 01, 2011 9:50 pm

Looking forward to the info from the AF plane headed out that way in a couple hours. We'll get a better idea of where the lowest pressures are then. I'm seriously concerned for the predicted rainfall amounts with this system.
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Re: ATL: THIRTEEN - Tropical Depression - Discussion

#1282 Postby ROCK » Thu Sep 01, 2011 9:50 pm

Portastorm wrote:I wouldn't think NHC would relocate the center without confirmation from a NOAA flight and real observations.

They do indicate in the forecast discussion that a center relocation is quite possible in the next 24 hours and that this system is going to move very slowly.


looky where the low level convergence is set up shop now......of course you have 30knts -20knt shear screaming over this thing because of the ULL....

http://tropic.ssec.wisc.edu/real-time/w ... oom=&time=
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Re: ATL: THIRTEEN - Tropical Depression - Discussion

#1283 Postby Stormcenter » Thu Sep 01, 2011 9:50 pm

Yes they do mention relocation but further north and not south like some are speculating right now on the board.
Oh well we shall see.

Portastorm wrote:I wouldn't think NHC would relocate the center without confirmation from a NOAA flight and real observations.

They do indicate in the forecast discussion that a center relocation is quite possible in the next 24 hours and that this system is going to move very slowly.
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Re: ATL: THIRTEEN - Tropical Depression - Discussion

#1284 Postby CYCLONE MIKE » Thu Sep 01, 2011 9:52 pm

Stormcenter wrote:Yep.

Wx_Warrior wrote:Mountains out of molehills. Let the pro's do their jobs. 8-)


nobody knows for sure. We are all just playing the game of speculation. Thats what its all about anyway isnt it. Anyways per the latest NHC discusiion they say it could reform anywhere within the broad circulation and that area of interest is definitely within the range. So we could be right or maybe not. The north relocation is just one possibilty based off the GFS.
Did notice they slowed the forecast track down some and will probably do so more tomorrow. Looks like almost anything could happen with this system this weekend.
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Re: ATL: THIRTEEN - Tropical Depression - Discussion

#1285 Postby Portastorm » Thu Sep 01, 2011 9:54 pm

Stormcenter wrote:Yes they do mention relocation but further north and not south like some are speculating right now on the board.
Oh well we shall see.

Portastorm wrote:I wouldn't think NHC would relocate the center without confirmation from a NOAA flight and real observations.

They do indicate in the forecast discussion that a center relocation is quite possible in the next 24 hours and that this system is going to move very slowly.


To be fair, the NHC does not say the center will reform north ... they say a center relocation is possible anywhere within the large overall circulation and then they reference the GFS model which relocates the center further north as an example of that possibility.
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Re: ATL: THIRTEEN - Models

#1286 Postby bamajammer4eva » Thu Sep 01, 2011 9:54 pm

ROCK wrote:Like i said LLCs like to migrate to the lowest pressure ie being under strongest convection....

I cant tell if a center reformed more south but if it has then you can throw about all the models you see tonight out the window.... :lol:


If it did that far enough south and east that could be some good news since that could put the storm going more towards MS/AL/Florida and and put NOLA on the drier side rather than getting 24" of rain.
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Re: ATL: THIRTEEN - Models

#1287 Postby ROCK » Thu Sep 01, 2011 9:55 pm

Turtle wrote:
ROCK wrote:Like i said LLCs like to migrate to the lowest pressure ie being under strongest convection....

I cant tell if a center reformed more south but if it has then you can throw about all the models you see tonight out the window.... :lol:

If it has, which direction could the system move? West?

The new NAM doesn't look good for Texas. I think the extreme SE corner gets 1-2", while most of the state is .10" or less.



word of advice....never look at the NAM for tropical tracks...it is bad....or you might look at the upper air dynamics coming in that might effect a track....NAM does well over the CONUS and local NWS folks rely on it...
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Re: ATL: THIRTEEN - Models

#1288 Postby ROCK » Thu Sep 01, 2011 9:57 pm

bamajammer4eva wrote:
ROCK wrote:Like i said LLCs like to migrate to the lowest pressure ie being under strongest convection....

I cant tell if a center reformed more south but if it has then you can throw about all the models you see tonight out the window.... :lol:


If it did that far enough south and east that could be some good news since that could put the storm going more towards MS/AL/Florida and and put NOLA on the drier side rather than getting 24" of rain.


good news that it has more time over water? huh? are you hoping for a major hurricane?
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Re: ATL: THIRTEEN - Tropical Depression - Discussion

#1289 Postby ROCK » Thu Sep 01, 2011 9:58 pm

the NHC cannot predict center relo's nor can any model....we saw that with Irene at one point...
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Re: ATL: THIRTEEN - Models

#1290 Postby bamajammer4eva » Thu Sep 01, 2011 10:00 pm

ROCK wrote:
bamajammer4eva wrote:
ROCK wrote:Like i said LLCs like to migrate to the lowest pressure ie being under strongest convection....

I cant tell if a center reformed more south but if it has then you can throw about all the models you see tonight out the window.... :lol:


If it did that far enough south and east that could be some good news since that could put the storm going more towards MS/AL/Florida and and put NOLA on the drier side rather than getting 24" of rain.


good news that it has more time over water? huh? are you hoping for a major hurricane?


Of course not but its only expected to reach 60MPH so rain is the main threat as everyone's been saying. Just saying New Orleans don't need 24" of rain. That's probably the worst place in the country to see that much rain.
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#1291 Postby Annie Oakley » Thu Sep 01, 2011 10:03 pm

North north north.....

PROLONGED PERIOD OF TROPICAL STORM CONDITIONS AND
HEAVY RAINFALL OVER PORTIONS OF THE NORTHERN GULF COAST.
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Re: ATL: THIRTEEN - Models

#1292 Postby mattpetre » Thu Sep 01, 2011 10:05 pm

So when the steering flow becomes exceptionally weak, I would think that perhaps the convective bursts themselves may have as much steering (relocating) effect as the typical synoptics do?
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Re: ATL: THIRTEEN - Tropical Depression - Discussion

#1293 Postby psyclone » Thu Sep 01, 2011 10:05 pm

Stormcenter wrote:Yes they do mention relocation but further north and not south like some are speculating right now on the board.
Oh well we shall see.

Portastorm wrote:I wouldn't think NHC would relocate the center without confirmation from a NOAA flight and real observations.

They do indicate in the forecast discussion that a center relocation is quite possible in the next 24 hours and that this system is going to move very slowly.

they mention the gfs suggests a relocation to the north. they didn't say they agreed. but they seemed open to the possibility of a center relocation. the only reason i mentioned it is past experience. we've seen this happen with poorly organized storms in their formative stages. i see nothing wrong with speculation on a tropical forum. i don't have a dog in this hunt as any center relocation shouldn't impact my weather one way or another.
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Re: ATL: THIRTEEN - Models

#1294 Postby ROCK » Thu Sep 01, 2011 10:06 pm

pick your poison I guess.....rain or a major....not sure what I would want.....
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Re: ATL: THIRTEEN - Tropical Depression - Discussion

#1295 Postby CYCLONE MIKE » Thu Sep 01, 2011 10:07 pm

Our local ocm(state climatologist) just gave a brief update and said not to be surprised to see the NHC relocate the llc further SE under the deeper convection before the 4am advisory. Said the same thing ROCK said: deeper convection/ convergence and lower pressures. I know, take it for what its worth.
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Re: ATL: THIRTEEN - Models

#1296 Postby Frank P » Thu Sep 01, 2011 10:08 pm

ROCK wrote:pick your poison I guess.....rain or a major....not sure what I would want.....


I think Texas would pick the rain...
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Re: ATL: THIRTEEN - Models

#1297 Postby ROCK » Thu Sep 01, 2011 10:08 pm

Frank P wrote:
ROCK wrote:pick your poison I guess.....rain or a major....not sure what I would want.....


I think Texas would pick the rain...


ha...you would be right...our lakes are way down....really running out of water literally...
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Re: ATL: THIRTEEN - Tropical Depression - Discussion

#1298 Postby mattpetre » Thu Sep 01, 2011 10:10 pm

I'm siding with Rock and Cantore (pretty good company) on this particular speculation. I think we'll be looking at a whole new system setup in 4 hrs...
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#1299 Postby Annie Oakley » Thu Sep 01, 2011 10:10 pm

Sounds sensible to me Cyclone Mike....wonder how far SE
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Re: ATL: THIRTEEN - Models

#1300 Postby Raininfyr » Thu Sep 01, 2011 10:11 pm

ROCK wrote:pick your poison I guess.....rain or a major....not sure what I would want.....


Would not want either. Would love to see the models trend west for the sake of Texas. I believe we will tell where this will be going or not going tomorrow.
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