*         NE PACIFIC TC GENESIS INDEX          *
                      *                GFS VERSION                   *
                      *           EP082021 07/31/21 00 UTC           *

TIME (hr)           0     6    12    18    24    36    48    60    72    84    96   108   120
Prob of Genesis                                       81%                                 96%

LAT  (deg N)     13.2  13.5  14.1  14.2  14.6  14.9  14.9  14.8  15.0  16.5  17.4  18.6  19.1
LON  (deg W)    114.1 114.6 115.8 116.8 117.2 118.3 119.6 120.3 120.3 120.7 122.0 123.8 125.7
DTL  (km)        1161  1151  1153  1203  1193  1245  1338  1390  1372  1270  1298  1361  1457
TRACK SOURCE     AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16  AP16

TCGI  0-48h Genesis Forecast:   81% is  1.9 times the sample mean (  44%)
TCGI 0-120h Genesis Forecast:   96% is  1.7 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   -2.8   7.3%      -2.0   -2.4  11.7%
VORTICITY          1.6    1.9  17.8%       1.5    2.8  27.2%
VERTICAL SHEAR    12.9   15.0  13.0%      14.9   15.1  27.4%
RH                79.1   84.5   9.8%      74.8   84.4   5.6%
GOES              42.9   47.5  10.0%      42.8   47.5   7.9%
DVORAK             0.9    2.5  23.1%       0.9    2.5  16.1%

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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