ATL: Dolly Model Runs

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gatorcane
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Re:

#181 Postby gatorcane » Mon Jul 14, 2008 8:45 am

KWT wrote:Looks like at this stage it may try and take the path of death, I seriously doubt there would be much left if it took the WNW path over several of the major islands...also its going to have to stop heading NW soon if its going to even get that far into the Caribbean.


KWT most systems do not pull a Georges and move over all of the islands. A well-defined system can make it over hispaniola or any of the Greater Antilles providing it is moving fast enough and the conditions are favorable for development.
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Re:

#182 Postby Extremeweatherguy » Mon Jul 14, 2008 8:46 am

KWT wrote:Looks like at this stage it may try and take the path of death, I seriously doubt there would be much left if it took the WNW path over several of the major islands...also its going to have to stop heading NW soon if its going to even get that far into the Caribbean.
Yeah, that is the big question. Will this system move over the islands or will it just move near them. The difference in terms of the eventual strength of 94L will be huge. A direct hit to Hispanola, the Dominican Republic, Jamaica and Cuba would mean bad news for the life of this system, but a path around those areas (even if just slightly) might not affect the system much at all.
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#183 Postby KWT » Mon Jul 14, 2008 8:56 am

Yeah I know Georges is rare and well-defined system will make it across though whether or not it will be in that much of a state who knows, I think alot also depends on how strong a system is when it come sin how quickly its moving.

EXG, yeah a track slightly to the south over the Caribbean would put it in some very high heat content, a GFDL track would also be far enough south to stop the inner core being disrupted.
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Re: ATL: INVEST 94L Model Runs

#184 Postby Ivanhater » Mon Jul 14, 2008 9:33 am

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#185 Postby KWT » Mon Jul 14, 2008 9:35 am

Strange run from the GFS but apart from that the GFDL is in good agreement with the current synotpic pattern we have and thats a sign that not much is going to change.
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Re: ATL: INVEST 94L Model Runs

#186 Postby canegrl04 » Mon Jul 14, 2008 10:33 am

I had just about given this thing up,but on CNN awhile ago they actually mentioned it so I guess that means its still got a good chance of becoming a named storm. If it doesn't wind up crashing into Mexico ,looks like a threat down the road to Florida or the GOM states
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Re: ATL: INVEST 94L Model Runs

#187 Postby micktooth » Mon Jul 14, 2008 10:36 am

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Re: ATL: INVEST 94L Model Runs

#188 Postby Ed Mahmoud » Mon Jul 14, 2008 10:43 am

canegrl04 wrote:I had just about given this thing up,but on CNN awhile ago they actually mentioned it so I guess that means its still got a good chance of becoming a named storm. If it doesn't wind up crashing into Mexico ,looks like a threat down the road to Florida or the GOM states



I gave my reasons, based on GFS, Canadian and Euro predicted 500 mb heights, on the main 94L thread but I expect a Charley like path, although which side of the Florida Peninsula this comes out on after crossing Cuba, it is ahrd to tell. Probably a threat anywhere from near Pensacola to Hatteras, if it stays away from Hispaniola.


Won't strengthen much in Eastern Caribbean due to fast low level flow due Equatorial heat low, and will have limited time to gain strength before the islands, so wind will be less a factor in Lesser Antilles than rain. Once past about 75ºW in the Caribbean, as it gets further from South America, it could start gaining strength again.

If it doesn't cross Cuba with too oblique an angle, minimizing time over land, it shouldn't weaken too much.


Of course, this is an amateur forecast, highly unprofessional, not endorsed in any way by Storm2K, or the US Olympic Committee.
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Re: ATL: INVEST 94L Model Runs

#189 Postby Ivanhater » Mon Jul 14, 2008 10:47 am

12z GFS running and for the third time it does not initialize 94L...something is up, problems seeing it or GFS is not seeing favorable conditions...
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#190 Postby KWT » Mon Jul 14, 2008 10:49 am

Well the thing is Ivanhater the GFS also had Bertha as an open wave...at the time when it was actually a category-3 hurricane, sometimes the GFS does lose systems rather easily.
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Re:

#191 Postby Ivanhater » Mon Jul 14, 2008 10:53 am

KWT wrote:Well the thing is Ivanhater the GFS also had Bertha as an open wave...at the time when it was actually a category-3 hurricane, sometimes the GFS does lose systems rather easily.


True KWT, but I think this is something more than that..once had a strong system, but for 3 runs in a row, it just washes it out..however, if 94L can get established the GFS may have a better handle
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#192 Postby Extremeweatherguy » Mon Jul 14, 2008 10:55 am

48 hours out and 12z GFS sees basically nothing...

http://www.nco.ncep.noaa.gov/pmb/nwprod ... n_048m.gif
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Re:

#193 Postby Ivanhater » Mon Jul 14, 2008 10:57 am

Extremeweatherguy wrote:48 hours out and 12z GFS sees basically nothing...

http://www.nco.ncep.noaa.gov/pmb/nwprod ... n_048m.gif


Yeah Extreme, the problem starts with the GFS not even initializing 94L at 00 hours...not sure if it is an initializing problem or the GFS is not seeing favorable conditions...
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Re: Re:

#194 Postby Ed Mahmoud » Mon Jul 14, 2008 10:59 am

Ivanhater wrote:
Extremeweatherguy wrote:48 hours out and 12z GFS sees basically nothing...

http://www.nco.ncep.noaa.gov/pmb/nwprod ... n_048m.gif


Yeah Extreme, the problem starts with the GFS not even initializing 94L at 00 hours...not sure if it is an initializing problem or the GFS is not seeing favorable conditions...



I'd expect the hour 0 surface map to show something, as it is pretty clear something is out there, even if the model saw unfavorable conditions.

I'm leaning toward bad initialization, myself.
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Re: Re:

#195 Postby vacanechaser » Mon Jul 14, 2008 10:59 am

Ivanhater wrote:
KWT wrote:Well the thing is Ivanhater the GFS also had Bertha as an open wave...at the time when it was actually a category-3 hurricane, sometimes the GFS does lose systems rather easily.


True KWT, but I think this is something more than that..once had a strong system, but for 3 runs in a row, it just washes it out..however, if 94L can get established the GFS may have a better handle



well, i mean look at it... not very impressive at all imo... maybe it is on to something.. maybe this thing dont have a chance... i dont know...

Jesse V. Bass III
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Hurricane Intercept Research Team
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Re: Re:

#196 Postby Ivanhater » Mon Jul 14, 2008 11:02 am

Ed Mahmoud wrote:
Ivanhater wrote:
Extremeweatherguy wrote:48 hours out and 12z GFS sees basically nothing...

http://www.nco.ncep.noaa.gov/pmb/nwprod ... n_048m.gif


Yeah Extreme, the problem starts with the GFS not even initializing 94L at 00 hours...not sure if it is an initializing problem or the GFS is not seeing favorable conditions...



I'd expect the hour 0 surface map to show something, as it is pretty clear something is out there, even if the model saw unfavorable conditions.

I'm leaning toward bad initialization, myself.


Yeah Ed..might be the problem, I believe the data would initialize a 1008mb low, but at 00 hours nothing..but 3 runs in a row..something is fishy because it looks like 94 L is well on its way..looks like a closed circulation...
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Re: ATL: INVEST 94L Model Runs

#197 Postby Nimbus » Mon Jul 14, 2008 11:06 am

Even I can see a LLC starting to roll up near 11.5 N 42.5 W on floater 2 now. Once the models get initialized we should be off to the races.
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Re: ATL: INVEST 94L Model Runs

#198 Postby Derek Ortt » Mon Jul 14, 2008 11:09 am

Ivanhater wrote:12z GFS running and for the third time it does not initialize 94L...something is up, problems seeing it or GFS is not seeing favorable conditions...


its initializing nothing, because there is not really anything to initialize in terms of a well-defined low-pressure center
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#199 Postby x-y-no » Mon Jul 14, 2008 11:13 am

The GFS sucks at predicting cyclogenesis in these kind of situations. Spins up things where they make little sense and misses development at other times. Once it has something to latch onto (if that happens) it's a different story.
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Re: ATL: INVEST 94L Model Runs

#200 Postby cycloneye » Mon Jul 14, 2008 11:37 am

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