ATL: ISAAC - Models

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BensonTCwatcher
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#3761 Postby BensonTCwatcher » Sat Aug 25, 2012 7:26 am

Thanks for posting that comparison to the models Blownaway. Particularly the GFS and derivative models are going to be too fat left through 72 hours . Looks like all of them are too far left. Sure looks like PBC is in play for some rough weather. Also note the climo at this position. Have to see how and when the turn to the WNW occurs from given current position and motion.
Last edited by BensonTCwatcher on Sat Aug 25, 2012 7:29 am, edited 1 time in total.
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#3762 Postby TreasureIslandFLGal » Sat Aug 25, 2012 7:28 am

Did the GFS initialize to the west of Isacc's actual location? It appeared so.
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ATL: ISAAC - Models

#3763 Postby rockyman » Sat Aug 25, 2012 7:29 am

06z HWRF bombs out off the central Fla Panhandle...down to 940mb

http://raleighwx.americanwx.com/models/ ... est078.gif
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ATL: ISAAC - Tropical Storm - Discussion

#3764 Postby meriland23 » Sat Aug 25, 2012 7:39 am

I want you guys to see this.....


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Re: ATL: ISAAC - Models

#3765 Postby cycloneye » Sat Aug 25, 2012 7:46 am

12z Models

Code: Select all

WHXX01 KWBC 251239
CHGHUR
TROPICAL CYCLONE GUIDANCE MESSAGE
NWS NATIONAL HURRICANE CENTER MIAMI FL
1239 UTC SAT AUG 25 2012
 
DISCLAIMER...NUMERICAL MODELS ARE SUBJECT TO LARGE ERRORS.
PLEASE REFER TO NHC OFFICIAL FORECASTS FOR TROPICAL CYCLONE
AND SUBTROPICAL CYCLONE INFORMATION.
 
ATLANTIC OBJECTIVE AIDS FOR
 
TROPICAL CYCLONE ISAAC (AL092012) 20120825 1200 UTC
 
        ...00 HRS...   ...12 HRS...   ...24 HRS. ..   ...36 HRS...
        120825  1200   120826  0000   120826  1200   120827  0000
 
         LAT    LON     LAT    LON     LAT    LON     LAT    LON
BAMS    19.7N  73.7W   22.0N  76.7W   23.8N  79.5W   25.0N  81.8W
BAMD    19.7N  73.7W   21.9N  76.0W   23.9N  78.3W   25.8N  80.4W
BAMM    19.7N  73.7W   21.8N  76.3W   23.7N  78.7W   25.3N  81.0W
LBAR    19.7N  73.7W   21.9N  75.6W   23.9N  77.9W   25.7N  80.2W
SHIP        50KTS          53KTS          61KTS          71KTS
DSHP        50KTS          53KTS          61KTS          71KTS
 
        ...48 HRS...   ...72 HRS...   ...96 HRS. ..   ..120 HRS...
        120827  1200   120828  1200   120829  1200   120830  1200
 
         LAT    LON     LAT    LON     LAT    LON     LAT    LON
BAMS    26.0N  84.1W   28.1N  86.7W   29.9N  87.3W   31.0N  86.3W
BAMD    27.5N  82.2W   30.9N  84.8W   34.3N  83.4W   37.7N  76.7W
BAMM    26.6N  83.0W   29.2N  86.1W   31.2N  86.9W   31.4N  86.2W
LBAR    27.2N  82.3W   29.8N  85.1W   32.2N  85.3W   33.5N  82.3W
SHIP        75KTS          87KTS          85KTS          73KTS
DSHP        75KTS          87KTS          48KTS          29KTS
 
         ...INITIAL CONDITIONS...
LATCUR =  19.7N LONCUR =  73.7W DIRCUR = 320DEG SPDCUR =  15KT
LATM12 =  17.3N LONM12 =  72.0W DIRM12 = 317DEG SPDM12 =  10KT
LATM24 =  15.9N LONM24 =  70.4W
WNDCUR =   50KT RMAXWD =   60NM WNDM12 =   55KT
CENPRS =  998MB OUTPRS = 1007MB OUTRAD =  275NM SDEPTH =   D
RD34NE =  180NM RD34SE =   90NM RD34SW =   60NM RD34NW = 180NM
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ATL: ISAAC - Models

#3766 Postby rockyman » Sat Aug 25, 2012 7:46 am

GFDL 06z goes down to 966mb with landfall on MS coast
Last edited by rockyman on Sat Aug 25, 2012 7:49 am, edited 2 times in total.
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Re: ATL: ISAAC - Tropical Storm - Discussion

#3767 Postby Sabanic » Sat Aug 25, 2012 7:47 am

Does he move due north from that point?


meriland23 wrote:I want you guys to see this.....


Image

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Re: ATL: ISAAC - Tropical Storm - Discussion

#3768 Postby meriland23 » Sat Aug 25, 2012 7:51 am

Sabanic wrote:Does he move due north from that point?


meriland23 wrote:I want you guys to see this.....


http://img28.imageshack.us/img28/5407/06zhwrf500mbhghtpmslnes.gif

Uploaded with ImageShack.us


NW, through west panhandle then into alabama at 90 hrs
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Re: ATL: ISAAC - Tropical Storm - Discussion

#3769 Postby Sabanic » Sat Aug 25, 2012 7:55 am

Thanks Meriland


meriland23 wrote:
Sabanic wrote:Does he move due north from that point?


meriland23 wrote:I want you guys to see this.....


http://img28.imageshack.us/img28/5407/06zhwrf500mbhghtpmslnes.gif

Uploaded with ImageShack.us


NW, through west panhandle then into alabama at 90 hrs
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#3770 Postby meriland23 » Sat Aug 25, 2012 8:15 am

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Re:

#3771 Postby Riptide » Sat Aug 25, 2012 8:17 am

meriland23 wrote:does anyone see the coc?

http://www.intellicast.com/Storm/Hurric ... imate=true

Yes, it is near the north side of the windward passage.
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#3772 Postby meriland23 » Sat Aug 25, 2012 8:19 am

looks like it is about to hit northern haiti.. maybe I am looking at the wrong thing
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#3773 Postby SFLcane » Sat Aug 25, 2012 8:24 am

12z models are now south of south Florida through the straights.
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Re: ATL: ISAAC - Models

#3774 Postby MetroMike » Sat Aug 25, 2012 8:27 am

Yes Joe B. states (12z track models adjusted northeast about 40 miles from 06z in 1st 36 hrs) unquote.
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#3775 Postby Jevo » Sat Aug 25, 2012 8:30 am

6z and 18z are like stepchildren of the model runs. The 12z run will have the G-IV data in it from the plane that landed this morning. Could be the NHC saw something in the raw data and decided to make some changes for the 5AM, but that's just speculation... This was the mission that went out @ 1:30am

Image
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Re:

#3776 Postby Jevo » Sat Aug 25, 2012 8:31 am

SFLcane wrote:12z models are now south of south Florida through the straights.


Keep an eye out. Only the GFS is South.. Other models have shifted right for the 1st CONUS landfall..
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#3777 Postby Dean4Storms » Sat Aug 25, 2012 8:33 am

Does anyone have that pressure to wind link?
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Re: ATL: ISAAC - Models

#3778 Postby tolakram » Sat Aug 25, 2012 8:36 am

Keep non-model discussion in the discussion thread please. Thanks.
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#3779 Postby MiamiensisWx » Sat Aug 25, 2012 8:44 am

The preliminary NHC track at 1200Z has shifted farther north and is somewhat slower...it now shows landfall near Tavernier around 00Z Monday morning (8:00 p.m. local time Sunday night).

12Z models (note black OFCI track)

Also, the official intensity forecast now calls for just a strong TS (60 kt/70 mph) in the upper FL Keys, in accordance with the model guidance.

12Z intensity guidance
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Re:

#3780 Postby jlauderdal » Sat Aug 25, 2012 8:51 am

SFLcane wrote:12z models are now south of south Florida through the straights.
easy does it...the coc has been east of the models since early this morning so you also need to look at what is actually verifying along with modeling, etc.
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