ATL: DORIAN - Models

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TheStormExpert

Re: ATL: DORIAN - Models

#101 Postby TheStormExpert » Sat Aug 24, 2019 5:09 pm

I do wonder if the GFS is too struggling now with the size of Dorian. If conditions are favorable until the islands then why doesn’t it strengthen it much?
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Re: ATL: DORIAN - Models

#102 Postby Taffy » Sat Aug 24, 2019 5:30 pm

I am the bear that is watching from SW Florida.
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Re: ATL: DORIAN - Models

#103 Postby Cpv17 » Sat Aug 24, 2019 5:37 pm

18z GFS goes poof in the Caribbean.
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Re: ATL: DORIAN - Models

#104 Postby eastcoastFL » Sat Aug 24, 2019 5:52 pm

Taffy wrote:I am the bear that is watching from SW Florida.


I’m bear watching in SE Florida ....
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Re: ATL: DORIAN - Models

#105 Postby plasticup » Sat Aug 24, 2019 6:08 pm

Cpv17 wrote:
mpic wrote:It's been upgraded to Tropical Storm Dorian.


Yeah I’m not sure why the title hasn’t been changed yet.

It is done manually and therefore sometimes has a short delay.
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Re: ATL: DORIAN - Models

#106 Postby BobHarlem » Sat Aug 24, 2019 6:43 pm

i'm going with the NHC on this one, the models in general aren't handling the setup in the Atlantic well at all this year. (Just go back several days and compare to what's out there now to see how bad it is)
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Re: ATL: DORIAN - Models

#107 Postby Nimbus » Sat Aug 24, 2019 6:47 pm

18Z HWRF has a hurricane that appears headed for Puerto Rico(or maybe the strait) after passing over Dominica.
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Re: ATL: DORIAN - Models

#108 Postby AtlanticWind » Sat Aug 24, 2019 6:48 pm

down to 965mb on HWRF
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Re: ATL: DORIAN - Models

#109 Postby gatorcane » Sat Aug 24, 2019 7:00 pm

18Z HWRF stronger than 12Z run and heading toward Puerto Rico (958 MB):

Image
Last edited by gatorcane on Sat Aug 24, 2019 7:01 pm, edited 1 time in total.
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Re: ATL: DORIAN - Models

#110 Postby AtlanticWind » Sat Aug 24, 2019 7:01 pm

HWRF really bombed out Dorian on this run 958 mb ,hope its wrong
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Re: ATL: DORIAN - Models

#111 Postby gatorcane » Sat Aug 24, 2019 7:04 pm

18Z HWRF simulated IR. Headed toward Puerto Rico double:

Image
Last edited by gatorcane on Sat Aug 24, 2019 7:05 pm, edited 1 time in total.
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Re: ATL: DORIAN - Models

#112 Postby Kazmit » Sat Aug 24, 2019 7:04 pm

gatorcane wrote:18Z HWRF simulated IR: :double:

https://i.postimg.cc/LXP6b0TQ/hwrf-sat-IR-05-L-20.png

It's like a flashback to Maria.
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Re: ATL: DORIAN - Models

#113 Postby Nimbus » Sat Aug 24, 2019 7:10 pm

strongest quadrant of the eyewall would travel over San Juan for this 18Z HWRF run with about 970 MB pressures which probably means cat 1.
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Re: ATL: DORIAN - Models

#114 Postby Kingarabian » Sat Aug 24, 2019 7:18 pm

Nimbus wrote:strongest quadrant of the eyewall would travel over San Juan for this 18Z HWRF run with about 970 MB pressures which probably means cat 1.

970mb is most likely Cat.2.
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Re: ATL: DORIAN - Models

#115 Postby gatorcane » Sat Aug 24, 2019 7:36 pm

The 18Z NAVGEM jumps on board for the first time sending this through Puerto Rico and into the Bahamas with the system growing in size. Thankfully it is a poor performing global model but hmmm:

Image
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Re: ATL: DORIAN - Models

#116 Postby northjaxpro » Sat Aug 24, 2019 8:05 pm

Interesting next week ahead with Dorian. So much to watch. Hope all in the Caribbean are preparing down there with this storm . It could be become a big one.

A lot as always looking down the road will be the HUGE ? if Dorian can avoiid the shredder aka as Hispaniola. This will carry HUGE potential implications with regards to the prospects concerning the CONUS.
Last edited by northjaxpro on Sat Aug 24, 2019 10:10 pm, edited 1 time in total.
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Re: ATL: DORIAN - Models

#117 Postby Chris_in_Tampa » Sat Aug 24, 2019 8:11 pm

8pm EDT Saturday SHIPS intensity output:

Code: Select all

                    * ATLANTIC     2019 SHIPS INTENSITY FORECAST     *
                    * IR SAT DATA AVAILABLE,       OHC AVAILABLE     *
                    *  DORIAN      AL052019  08/25/19  00 UTC        *

TIME (HR)          0     6    12    18    24    36    48    60    72    84    96   108   120
V (KT) NO LAND    35    37    40    43    46    52    59    67    69    72    72    71    71
V (KT) LAND       35    37    40    43    46    52    59    67    69    72    72    71    53
V (KT) LGEM       35    37    39    42    44    51    58    65    70    71    70    68    51
Storm Type      TROP  TROP  TROP  TROP  TROP  TROP  TROP  TROP  TROP  TROP  TROP  TROP  TROP

SHEAR (KT)         8     5     4     5     3    10     4    11    17    12    14    18     8
SHEAR ADJ (KT)     2     3     2     2     4     0    -2     0    -8    -4     0    -6     0
SHEAR DIR        138   120    62    43    14   352   313   291   247   252   214   245   208
SST (C)         28.0  28.0  28.0  28.2  28.3  28.6  29.0  29.1  29.3  29.2  29.2  29.1  29.2
POT. INT. (KT)   137   137   137   140   141   146   152   154   157   155   155   153   155
ADJ. POT. INT.   137   136   135   139   141   145   151   153   155   150   149   146   147
200 MB T (C)   -53.8 -54.0 -54.2 -54.1 -54.1 -54.4 -54.0 -54.1 -53.8 -54.3 -54.2 -54.4 -54.2
200 MB VXT (C)  -0.2  -0.2  -0.2  -0.2  -0.2  -0.2  -0.3  -0.2  -0.2  -0.2  -0.1  -0.2  -0.2
TH_E DEV (C)       9     9    10    10    10    10    10    10    11    11    12    11    12
700-500 MB RH     42    39    38    39    41    43    45    49    47    49    50    53    55
MODEL VTX (KT)    13    12    12    11    11    10    10    11     8     8     7     6     4
850 MB ENV VOR    39    28    17    18    16     9    12    11     8    19    18     6     1
200 MB DIV        -5   -14   -26   -23    -8   -10   -10    27    10    27    43    -3     9
700-850 TADV      -7    -7    -7    -6    -5    -3     0     1    -2     0     0     2    -5
LAND (KM)        714   690   668   651   653   569   413   369   487   256   121    61   -25
LAT (DEG N)     10.8  11.1  11.3  11.5  11.6  12.3  13.2  14.0  15.3  16.2  16.9  17.8  19.1
LONG(DEG W)     49.7  50.8  51.8  52.8  53.9  56.0  58.1  60.1  62.3  64.4  66.3  68.2  69.9
STM SPEED (KT)    11    11    10    10    11    11    11    12    12    10    10    10    10
HEAT CONTENT      12    11    12    14    19    36    42    38    54    49    69    83    68

  FORECAST TRACK FROM OFCI      INITIAL HEADING/SPEED (DEG/KT):280/ 11      CX,CY: -10/  2
  T-12 MAX WIND:  30            PRESSURE OF STEERING LEVEL (MB):  538  (MEAN=620)
  GOES IR BRIGHTNESS TEMP. STD DEV.  50-200 KM RAD:  16.9 (MEAN=14.5)
  % GOES IR PIXELS WITH T < -20 C    50-200 KM RAD:  52.0 (MEAN=65.0)
  PRELIM RI PROB (DV .GE. 35 KT IN 36 HR):           12.0

                        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.  11.  12.  12.
  SST POTENTIAL          1.   1.   1.   2.   4.   8.  14.  19.  23.  26.  28.  31.
  VERTICAL SHEAR MAG     1.   2.   3.   4.   6.   8.   9.   9.   8.   8.   7.   7.
  VERTICAL SHEAR ADJ     0.   0.   0.  -1.  -1.   0.   0.   2.   3.   2.   2.   2.
  VERTICAL SHEAR DIR     0.   0.   1.   2.   3.   3.   3.   2.   0.  -1.  -2.  -3.
  PERSISTENCE            1.   1.   1.   1.   1.   0.   0.   0.   0.   0.   0.   0.
  200/250 MB TEMP.       0.   0.  -1.  -1.   0.   0.   0.   0.   0.   1.   1.   2.
  THETA_E EXCESS         0.   0.   0.   0.   1.   1.   1.   1.   1.   1.   1.   1.
  700-500 MB RH          0.   0.   1.   1.   1.   2.   3.   3.   3.   3.   2.   2.
  MODEL VTX TENDENCY     0.  -1.  -1.  -2.  -3.  -4.  -5.  -9. -10. -13. -15. -17.
  850 MB ENV VORTICITY   0.   0.   0.   0.   0.   0.   0.  -1.  -1.  -1.  -1.  -1.
  200 MB DIVERGENCE      0.  -1.  -1.  -1.  -2.  -1.  -1.  -1.  -1.   0.   0.   1.
  850-700 T ADVEC        0.   0.   0.   0.  -1.  -1.  -1.  -1.  -1.   0.   0.   0.
  ZONAL STORM MOTION     0.   0.   0.   0.   0.   1.   1.   1.   1.   2.   2.   2.
  STEERING LEVEL PRES    0.   0.   0.   0.   1.   1.   0.   1.   1.   1.   1.   1.
  DAYS FROM CLIM. PEAK   0.   0.   0.   0.   0.   0.   0.   0.   0.   0.   0.   0.
  GOES PREDICTORS        0.   0.   0.   0.   0.  -1.  -2.  -2.  -2.  -2.  -2.  -2.
  OCEAN HEAT CONTENT     0.   0.   0.   0.   0.   0.   0.   0.   0.   0.   0.   0.
  RI POTENTIAL           0.   0.   0.   1.   1.   1.   0.   0.   0.   0.   0.   0.
                        ----------------------------------------------------------
  TOTAL CHANGE           2.   5.   8.  11.  17.  24.  32.  34.  37.  37.  36.  36.

                CURRENT MAX WIND (KT):   35. LAT, LON:   10.8    49.7

      ** 2019 ATLANTIC RI INDEX AL052019 DORIAN     08/25/19  00 UTC **
 (SHIPS-RII PREDICTOR TABLE for 30 KT OR MORE MAXIMUM WIND INCREASE IN NEXT 24-h)
 
     Predictor                  Value   RI Predictor Range  Scaled Value(0-1) % Contribution
 12 HR PERSISTENCE (KT)      :    5.0    -49.5  to   33.0        0.66           6.1
 850-200 MB SHEAR (KT)       :    5.1     30.1  to    2.3        0.90           3.2
 HEAT CONTENT (KJ/CM2)       :   13.6      0.0  to  151.8        0.09           0.3
 STD DEV OF IR BR TEMP       :   16.9     36.6  to    2.8        0.58           2.2
 MAXIMUM WIND (KT)           :   35.0     22.5  to  137.5        0.33           0.7
 2nd PC OF IR BR TEMP        :   -0.6      2.9  to   -2.9        0.60           1.5
 POT = MPI-VMAX (KT)         :  102.9     27.5  to  139.6        0.67           1.7
 D200 (10**7s-1)             :  -15.2    -29.7  to  185.9        0.07           0.1
 %area of TPW <45 mm upshear :   40.8    100.0  to    0.0        0.59           0.0
 BL DRY-AIR FLUX (W/M2)      :  313.4    895.4  to  -55.0        0.61           0.0
 
 SHIPS Prob RI for 20kt/ 12hr RI threshold=   7% is   1.3 times climatological mean ( 5.2%)
 SHIPS Prob RI for 25kt/ 24hr RI threshold=  23% is   2.1 times climatological mean (10.9%)
 SHIPS Prob RI for 30kt/ 24hr RI threshold=  16% is   2.3 times climatological mean ( 6.9%)
 SHIPS Prob RI for 35kt/ 24hr RI threshold=  12% is   2.7 times climatological mean ( 3.8%)
 SHIPS Prob RI for 40kt/ 24hr RI threshold=  10% is   4.6 times climatological mean ( 2.4%)
 SHIPS Prob RI for 45kt/ 36hr RI threshold=  13% is   2.8 times climatological mean ( 4.5%)
 SHIPS Prob RI for 55kt/ 48hr RI threshold=  21% is   4.5 times climatological mean ( 4.6%)
 SHIPS Prob RI for 65kt/ 72hr RI threshold=  33% is   6.2 times climatological mean ( 5.4%)
   
Matrix of RI probabilities
------------------------------------------------------------------------------
  RI (kt / h)  | 20/12 | 25/24 | 30/24 | 35/24 | 40/24 | 45/36 | 55/48  |65/72
------------------------------------------------------------------------------
   SHIPS-RII:     6.7%   22.5%   15.7%   11.8%    9.5%   12.6%   20.8%   33.3%
    Logistic:     6.1%   26.3%   21.1%    9.9%    4.9%   14.7%   18.6%   21.2%
    Bayesian:     0.5%   11.8%    2.6%    0.0%    0.0%    0.9%    2.0%    0.6%
   Consensus:     4.4%   20.2%   13.1%    7.3%    4.8%    9.4%   13.8%   18.4%
       DTOPS:     1.0%    2.0%    1.0%    0.0%    0.0%    0.0%    3.0%    5.0%

   ##         ANNULAR HURRICANE INDEX (AHI) AL052019 DORIAN     08/25/19  00 UTC         ##
   ## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=4 NFAIL=3                          ##
   ## AHI=  0   (AHI OF 100 IS BEST FIT TO ANN. STRUC., 1 IS MARGINAL, 0 IS NOT ANNULAR) ##

** PROBLTY OF AT LEAST 1 SCNDRY EYEWL FORMTN EVENT AL052019 DORIAN     08/25/2019  00 UTC **
TIME(HR)   0-12  12-24(0-24)  24-36(0-36)  36-48(0-48)
CLIMO(%)     0      0(  0)       0(  0)       0(  0)     <-- PROB BASED ON INTENSITY ONLY
PROB(%)      0      0(  0)       0(  0)       0(  0)     <-- FULL MODEL PROB (RAN NORMALLY)

** DSHIPS INTENSITY FORECAST ADJUSTED RELATIVE TO ONSET OF ERC WEAKENING PHASE **
      TIME (HR)      0     6    12    18    24    36    48    60    72    84    96   108   120
>24HR AGO (DSHIPS)  35    37    40    43    46    52    59    67    69    72    72    71    53
 18HR AGO           35    34    37    40    43    49    56    64    66    69    69    68    50
 12HR AGO           35    32    31    34    37    43    50    58    60    63    63    62    44
  6HR AGO           35    29    26    25    28    34    41    49    51    54    54    53    35
      NOW                              CURRENT INTENSITY < 83 KT
  IN  6HR                              INTENSITY IN  6HR < 83 KT
  IN 12HR                              INTENSITY IN 12HR < 83 KT

From bottom of this folder: https://ftp.nhc.noaa.gov/atcf/stext/

The current intensity is 35 knots. (40mph) As of the 8pm EDT SHIPS intensity output, there remains a 33% chance of a 65 knot (75mph) increase over 72 hours (3 days). That would be 100 knots. (about 115mph)
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Re: ATL: DORIAN - Models

#118 Postby AxaltaRacing24 » Sat Aug 24, 2019 10:32 pm

sma10 wrote:
gatorcane wrote:The 18Z NAVGEM jumps on board for the first time sending this through Puerto Rico and into the Bahamas with the system growing in size. Thankfully it is a poor performing global model but hmmm:

https://i.postimg.cc/tgZ28hVm/nvg10-sfc10m-180-go-mex.gif


Obviously attention needs to be paid by the SE US coast ... but historically speaking I would find it difficult to believe that a storm positioned as far south as Dorian currently is would traverse the eastern caribbean and pop out on the other side unscathed.

it will come down to whether if it misses hispaniola or not.
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Re: ATL: DORIAN - Models

#119 Postby sma10 » Sat Aug 24, 2019 10:35 pm

AxaltaRacing24 wrote:
sma10 wrote:
gatorcane wrote:The 18Z NAVGEM jumps on board for the first time sending this through Puerto Rico and into the Bahamas with the system growing in size. Thankfully it is a poor performing global model but hmmm:

https://i.postimg.cc/tgZ28hVm/nvg10-sfc10m-180-go-mex.gif


Obviously attention needs to be paid by the SE US coast ... but historically speaking I would find it difficult to believe that a storm positioned as far south as Dorian currently is would traverse the eastern caribbean and pop out on the other side unscathed.

it will come down to whether if it misses hispaniola or not.


True, slamming directly into it will likely destroy Dorian. But even getting CLOSE to Hispaniola tends to unravel systems. Seen it happen so many times.
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Re: ATL: DORIAN - Models

#120 Postby storm4u » Sat Aug 24, 2019 10:40 pm

ICON just went beast mode!!
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