*         NE PACIFIC TC GENESIS INDEX          *
                      *                GFS VERSION                   *
                      *           EP092021 08/02/21 06 UTC           *

TIME (hr)           0     6    12    18    24    36    48    60    72    84    96   108   120
Prob of Genesis                                       34%                                 55%

LAT  (deg N)     12.1  12.7  13.4  13.7  13.8  14.2  15.0  16.0  17.4  20.4  23.6  24.2  24.0
LON  (deg W)    129.8 130.4 130.6 131.1 131.3 131.5 131.1 131.4 131.6 131.9 134.2 137.5 139.5
DTL  (km)        2322  2322  2278  2292  2299  2283  2190  2139  2058  1901  1820  1859  1656
TRACK SOURCE     AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16

TCGI  0-48h Genesis Forecast:   34% is  0.8 times the sample mean (  44%)
TCGI 0-120h Genesis Forecast:   55% is  1.0 times the sample mean (  56%)

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INDIVIDUAL PREDICTOR CONTRIBUTIONS TO PROBABILITY OF GENESIS 

               *******  48-HR ******   ******* 120-HR ******
                   AVG   TCGI   CONT       AVG   TCGI   CONT
DIVERGENCE        -2.0   -1.1   3.0%      -2.0    0.0   4.2%
VORTICITY          1.6    1.8  10.6%       1.5    2.1  17.5%
VERTICAL SHEAR    12.9   11.3   9.9%      14.9   14.3  22.6%
RH                79.1   74.0   4.8%      74.8   74.7   5.3%
GOES              42.9   12.6   1.5%      42.8   12.6   1.6%
DVORAK             0.9    1.0   4.6%       0.9    1.0   4.2%

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PREDICTOR DEFINITIONS (Averaged Over 500 km Radius)

GENESIS CLIM   = Climatological Prob (%) of Genesis (Source: NHC-TAFB Invest Database) 
DIVERGENCE     = GFS 850 hPa Horizontal Divergence (x10-7 s-1)
VORTICITY      = GFS 850 hPa Vorticity (x10-6 s-1)
VERTICAL SHEAR = GFS 200-850 hPa Vertical Shear (kt)
RH             = GFS 600-850 hPa Relative Humidity (%)
GOES           = GOES Water Vapor Pixels Colder than -40C (%)
DVORAK         = Dvorak T-number, source: TAFB

Version 3.0, July 2018