*         NE PACIFIC TC GENESIS INDEX          *
                      *                GFS VERSION                   *
                      *           EP912020 09/12/20 00 UTC           *

TIME (hr)           0     6    12    18    24    36    48    60    72    84    96   108   120
Prob of Genesis                                       22%                                 78%

LAT  (deg N)     17.8  17.7  17.4  17.3  17.2  16.9  16.8  18.0  18.4  19.0  19.9  20.0  20.4
LON  (deg W)    117.7 118.3 118.7 119.0 119.4 120.5 121.2 118.2 120.0 121.3 122.8 125.0 126.5
DTL  (km)         957  1004  1056  1085  1120  1222  1282   971  1067  1129  1182  1335  1427
TRACK SOURCE     AP03  AP03  AP03  AP03  AP03  AP03  AP03  AP03  AP03  AP03  AP03  AP03  AP03

TCGI  0-48h Genesis Forecast:   22% is  0.5 times the sample mean (  44%)
TCGI 0-120h Genesis Forecast:   78% is  1.4 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   -0.8   1.9%      -2.0   -0.9   7.8%
VORTICITY          1.6    2.1   8.8%       1.5    3.1  30.0%
VERTICAL SHEAR    12.9   13.9   6.3%      14.9   12.3  29.4%
RH                79.1   62.1   1.5%      74.8   65.8   4.9%
GOES              42.9    6.1   0.4%      42.8    6.1   0.9%
DVORAK             0.9    1.0   3.4%       0.9    1.0   5.2%

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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