ATL: Tropical Storm Edouard Model Runs

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ATL: Tropical Storm Edouard Model Runs

#1 Postby cycloneye » Sat Aug 02, 2008 1:37 pm

WHXX01 KWBC 021829
CHGHUR
TROPICAL CYCLONE GUIDANCE MESSAGE
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1829 UTC SAT AUG 2 2008

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

DISTURBANCE INVEST (AL912008) 20080802 1800 UTC

...00 HRS... ...12 HRS... ...24 HRS. .. ...36 HRS...
080802 1800 080803 0600 080803 1800 080804 0600

LAT LON LAT LON LAT LON LAT LON
BAMS 29.5N 87.0W 28.6N 87.6W 28.0N 88.9W 27.2N 90.7W
BAMD 29.5N 87.0W 28.5N 87.6W 27.8N 88.9W 27.5N 90.7W
BAMM 29.5N 87.0W 28.5N 87.8W 27.7N 89.4W 27.1N 91.5W
LBAR 29.5N 87.0W 28.8N 87.1W 28.6N 87.9W 28.7N 89.2W
SHIP 20KTS 24KTS 31KTS 36KTS
DSHP 20KTS 24KTS 31KTS 36KTS

...48 HRS... ...72 HRS... ...96 HRS. .. ..120 HRS...
080804 1800 080805 1800 080806 1800 080807 1800

LAT LON LAT LON LAT LON LAT LON
BAMS 27.5N 92.7W 28.7N 96.9W 30.9N 100.5W 33.5N 102.1W
BAMD 27.6N 92.9W 29.2N 97.6W 31.1N 102.2W 32.8N 105.4W
BAMM 27.2N 93.9W 28.2N 98.4W 29.9N 102.5W 31.8N 105.2W
LBAR 29.1N 90.8W 30.1N 94.4W 31.5N 96.9W 32.1N 97.0W
SHIP 44KTS 54KTS 58KTS 62KTS
DSHP 44KTS 38KTS 28KTS 27KTS

...INITIAL CONDITIONS...
LATCUR = 29.5N LONCUR = 87.0W DIRCUR = 170DEG SPDCUR = 5KT
LATM12 = 30.9N LONM12 = 87.3W DIRM12 = 168DEG SPDM12 = 4KT
LATM24 = 32.5N LONM24 = 87.6W
WNDCUR = 20KT RMAXWD = 20NM WNDM12 = 20KT
CENPRS = 1009MB OUTPRS = 1010MB OUTRAD = 150NM SDEPTH = D
RD34NE = 0NM RD34SE = 0NM RD34SW = 0NM RD34NW = 0NM

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#2 Postby HURAKAN » Sat Aug 02, 2008 1:37 pm

Image

It has time.
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Re: ATL: Invest 91L Model Runs

#3 Postby cycloneye » Sat Aug 02, 2008 1:45 pm

According to the first SHIP forecast,91L wont have big problems with shear:

Code: Select all

                 *   ATLANTIC SHIPS INTENSITY FORECAST       *
                    *        GOES/OHC INPUT INCLUDED            *
                    *      INVEST  AL912008  08/02/08  18 UTC   *

TIME (HR)          0     6    12    18    24    36    48    60    72    84    96   108   120
V (KT) NO LAND    20    22    24    27    31    36    44    49    54    55    58    63    62
V (KT) LAND       20    22    24    27    31    36    44    49    38    30    28    27    27
V (KT) LGE mod    20    20    21    22    23    26    29    33    30    28    27    27    27

SHEAR (KTS)       13     3    12    12     6    10     7     4     8     9     6    16     6
SHEAR DIR         32   338   308   334   341   322   110    14   102    28    63   325    72
SST (C)         29.2  29.2  29.2  29.2  29.2  29.3  29.2  28.4  28.2  29.1  29.2  28.3  26.4
POT. INT. (KT)   153   153   154   154   155   157   155   142   140   153   155   140   116
ADJ. POT. INT.   129   130   131   133   135   138   137   125   122   134   133   118    99
200 MB T (C)   -52.6 -52.4 -52.6 -52.9 -52.8 -52.6 -52.8 -52.9 -53.2 -53.0 -53.2 -53.6 -54.0
TH_E DEV (C)      14    15    12    10    14    11    13    10    11    10    10     9    11
700-500 MB RH     44    43    40    47    48    44    50    46    49    48    53    54    54
GFS VTEX (KT)      5     5     6     7     9     8     8     7     6     2     2     5  LOST
850 MB ENV VOR   -41   -59   -78   -64   -45   -58   -41   -28    -6    21    -5    18     0
200 MB DIV        -9    11     1    -6   -28    -5    -9    -2     1   -10     4    14   -15
LAND (KM)        105   158   160   130   155   232   230   100  -121  -335  -562  -704  -669
LAT (DEG N)     29.5  29.0  28.5  28.1  27.7  27.1  27.2  27.5  28.2  29.0  29.9  30.8  31.8
LONG(DEG W)     87.0  87.4  87.8  88.6  89.4  91.5  93.9  96.0  98.4 100.4 102.5 104.0 105.2
STM SPEED (KT)     6     6     7     8     9    10    10    10    10    10     9     7     7
HEAT CONTENT      35    41    38    40    29    45    47    36  9999  9999  9999  9999  9999

  FORECAST TRACK FROM BAMM      INITIAL HEADING/SPEED (DEG/KT):170/  5      CX,CY:   1/ -4
  T-12 MAX WIND:  20            PRESSURE OF STEERING LEVEL (MB):  532  (MEAN=625)
  GOES IR BRIGHTNESS TEMP. STD DEV. 100-300 KM RAD:  32.3 (MEAN=20.0)
  % GOES IR PIXELS WITH T < -20 C    50-200 KM RAD:  57.0 (MEAN=68.6)

                        INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE
                         6   12   18   24   36   48   60   72   84   96  108  120
                        ----------------------------------------------------------
  SAMPLE MEAN CHANGE     1.   2.   3.   4.   6.   8.   9.  10.  11.  12.  12.  13.
  SST POTENTIAL          0.   0.   0.   1.   4.  10.  17.  22.  27.  31.  34.  36.
  VERTICAL SHEAR         1.   4.   6.   8.  11.  13.  15.  16.  16.  16.  16.  15.
  PERSISTENCE            0.  -1.  -1.  -1.  -1.  -1.  -1.  -1.  -1.  -1.   0.   0.
  200/250 MB TEMP.       0.   0.  -1.  -1.  -1.  -2.  -2.  -2.  -2.  -2.  -2.  -1.
  THETA_E EXCESS         0.   1.   1.   1.   1.   1.   2.   2.   2.   1.   1.   1.
  700-500 MB RH          0.   0.   0.   0.   0.   0.   0.   0.   0.   0.   0.   0.
  GFS VORTEX TENDENCY    0.   0.   0.   2.   1.   2.   0.   0.  -4.  -4.  -2.  -3.
  850 MB ENV VORTICITY  -1.  -1.  -2.  -2.  -3.  -4.  -5.  -5.  -5.  -6.  -5.  -5.
  200 MB DIVERGENCE      0.   0.  -1.  -1.  -2.  -3.  -4.  -4.  -5.  -5.  -4.  -4.
  ZONAL STORM MOTION     0.   0.   0.   0.  -1.  -1.  -2.  -2.  -3.  -4.  -4.  -5.
  STEERING LEVEL PRES    0.   0.   1.   1.   1.   1.   1.   2.   2.   2.   2.   1.
  DAYS FROM CLIM. PEAK   0.   0.   0.   0.  -1.  -1.  -1.  -2.  -2.  -2.  -2.  -3.
                        ----------------------------------------------------------
  SUB-TOTAL CHANGE       1.   3.   6.  10.  16.  23.  29.  35.  37.  40.  45.  44.

  SATELLITE ADJUSTMENTS ----------------------------------------------------------
  MEAN ADJUSTMENT        0.   0.   0.   0.  -1.  -1.  -1.  -1.  -1.  -1.  -1.  -2.
  GOES IR STD DEV        1.   1.   2.   2.   2.   1.   1.   0.   0.   0.   0.   0.
  GOES IR PIXEL COUNT    0.   0.   0.  -1.  -1.   0.   0.   0.   1.   1.   1.   0.
  OCEAN HEAT CONTENT     0.   0.   0.   0.   0.   0.  -1.  -1.  -1.  -1.  -1.  -1.
                        ----------------------------------------------------------
  TOTAL ADJUSTMENT       0.   1.   1.   1.   1.   0.   0.  -1.  -2.  -2.  -2.  -2.
                        ----------------------------------------------------------
  TOTAL CHANGE (KT)      2.   4.   7.  11.  16.  24.  29.  34.  35.  38.  43.  42.

   ** 2008 ATLANTIC RI INDEX AL912008     INVEST 08/02/08  18 UTC **
           ( 25 KT OR MORE MAX WIND INCREASE IN NEXT 24 HR)
 
 12 HR PERSISTENCE (KT):   0.0 Range:-45.0 to  30.0 Scaled/Wgted Val:  0.6/  1.1
 850-200 MB SHEAR (KT) :   9.2 Range: 35.1 to   3.2 Scaled/Wgted Val:  0.8/  1.3
 D200 (10**7s-1)       :  -6.2 Range:-20.0 to 149.0 Scaled/Wgted Val:  0.1/  0.1
 POT = MPI-VMAX (KT)   : 111.7 Range: 25.1 to 130.7 Scaled/Wgted Val:  0.8/  0.9
 850-700 MB REL HUM (%):  60.4 Range: 56.0 to  88.0 Scaled/Wgted Val:  0.1/  0.1
 % area w/pixels <-30 C:  52.0 Range: 17.0 to 100.0 Scaled/Wgted Val:  0.4/  0.1
 STD DEV OF IR BR TEMP :  24.6 Range: 35.1 to   3.2 Scaled/Wgted Val:  0.3/  0.4
 Heat content (KJ/cm2) :  36.6 Range:  0.0 to 132.0 Scaled/Wgted Val:  0.3/  0.0
 
 Prob of RI for 25 kt RI threshold=    18% is   1.4 times the sample mean(12.3%)
 Prob of RI for 30 kt RI threshold=    10% is   1.3 times the sample mean( 7.8%)
 Prob of RI for 35 kt RI threshold=     6% is   1.3 times the sample mean( 4.5%)

   ##         ANNULAR HURRICANE INDEX (AHI) AL912008     INVEST 08/02/08  18 UTC         ##
   ## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=3 NFAIL=4                          ##
   ## AHI=  0   (AHI OF 100 IS BEST FIT TO ANN. STRUC., 1 IS MARGINAL, 0 IS NOT ANNULAR) ##
   ##     ANNULAR INDEX RAN NORMALLY
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Re: ATL: Invest 91L Model Runs

#4 Postby Ed Mahmoud » Sat Aug 02, 2008 1:45 pm

Not sure how well the BAMS will do for a currently non-tropical system in the mid-latitudes. I'd take them with a grain of salt when they come out. I actually expect globals to do best of all, and once recon goes in, assuming no poof-ation, models initialized post recon tomorrow should be pretty close.


BTW, NHC recon tasking and SHIPS/BAMs model data look best when pasted inside "code" tags.
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Re: ATL: Invest 91L Model Runs

#5 Postby Ed Mahmoud » Sat Aug 02, 2008 1:47 pm

SHIPS is almost certainly giving this too much of a head start, as there isn't an established surface circulation yet.


Besides above doubts about tropical models for a non tropical (at the moment) system, I also hope BAMS are wrong because they'll cheat my lawn of rain if correct.
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Re: ATL: Invest 91L Model Runs

#6 Postby Category 5 » Sat Aug 02, 2008 2:25 pm

If theres any good news with this, it's that the models seem to be taking this toward a drought stricken area. We can only hope that this stays weak.
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Re: ATL: Invest 91L Model Runs

#7 Postby SouthFloridawx » Sat Aug 02, 2008 2:48 pm

Well lets up something picks this up quickly then...
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Re: ATL: Invest 91L Model Runs

#8 Postby SouthFloridawx » Sat Aug 02, 2008 2:49 pm

Image
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Re: ATL: Invest 91L Model Runs

#9 Postby HouTXmetro » Sat Aug 02, 2008 2:59 pm

SouthFloridawx wrote:Image


Are those the BAMS models?
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Re: ATL: Invest 91L Model Runs

#10 Postby SouthFloridawx » Sat Aug 02, 2008 3:30 pm

Pull up the image and look to the Lower Right hand side of the screen. They are CMC, GFS, UKMET, NOGAPS and NAM.
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Re: ATL: Invest 91L Model Runs

#11 Postby Ed Mahmoud » Sat Aug 02, 2008 4:37 pm

18Z NAM- tropical depression or weak tropical storm (had a closed isobar six hours prior to this/landfall) near Matagorda.

Image


18Z GFS cooking now...

New 18Z GFS has almost closed a surface low by very early tomorrow morning...

Image
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Re: ATL: Invest 91L Model Runs

#12 Postby LaBreeze » Sat Aug 02, 2008 4:41 pm

Matagorda - wondering why so many others are saying SE TX, when Matagorda is the central TX coast. I'm with you, Ed - I'm thinking Corpus to Matagorda.
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Re: ATL: Invest 91L Model Runs

#13 Postby canegrl04 » Sat Aug 02, 2008 4:45 pm

We need some rain up here around Dallas.Right now we're under an excessive heat warning thru Monday.Temps near 108 with heat indicies above 110.If it hits near the TX?LA border some of the rain should come our way :cheesy:
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Re: ATL: Invest 91L Model Runs

#14 Postby RL3AO » Sat Aug 02, 2008 4:57 pm

GFS 18z is further north.

Image
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Re: ATL: Invest 91L Model Runs

#15 Postby cycloneye » Sat Aug 02, 2008 5:09 pm

Image
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Re:

#16 Postby Mecklenburg » Sat Aug 02, 2008 5:10 pm

HURAKAN wrote:Image

It has time.


Alicia-like path?
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Re: ATL: Invest 91L Model Runs

#17 Postby stevetampa33614 » Sat Aug 02, 2008 6:15 pm

Ok this has been bothering me. Why are CLLPS and XSTR always out in left field with there forecasts. Are they more historical models?
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Re: ATL: Invest 91L Model Runs

#18 Postby kpost » Sat Aug 02, 2008 6:20 pm

stevetampa33614 wrote:Ok this has been bothering me. Why are CLLPS and XSTR always out in left field with there forecasts. Are they more historical models?


don't know about the Clps but the XTRP is a projection line of where it would be if it continued its current motion.
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Re: ATL: Invest 91L Model Runs

#19 Postby RL3AO » Sat Aug 02, 2008 6:20 pm

stevetampa33614 wrote:Ok this has been bothering me. Why are CLLPS and XSTR always out in left field with there forecasts. Are they more historical models?


CLP5 is a climatology and persistance model and XSTR = XTRP? That is just an extrapolation of the current movement.
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Re: ATL: Invest 91L Model Runs

#20 Postby chadtm80 » Sat Aug 02, 2008 7:17 pm

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