*         NE PACIFIC TC GENESIS INDEX          *
                      *                GFS VERSION                   *
                      *           EP992021 07/30/21 06 UTC           *

TIME (hr)           0     6    12    18    24    36    48    60    72    84    96   108   120
Prob of Genesis                                       79%                                 91%

LAT  (deg N)     13.9  13.7  13.0  12.6  12.2  12.1  12.3  13.3  14.0  14.4  14.4  14.0  13.7
LON  (deg W)    124.4 125.6 126.6 126.9 127.3 128.1 128.2 129.4 130.8 132.2 133.7 135.2 135.7
DTL  (km)        1753  1862  1994  2049  2111  2182  2176  2200  2245  2323  2313  2173  2133
TRACK SOURCE     AP06  AP06  AP06  AP06  AP06  AP06  AP06  AP06  AP06  AP06  AP06  AP06  AP06

TCGI  0-48h Genesis Forecast:   79% is  1.8 times the sample mean (  44%)
TCGI 0-120h Genesis Forecast:   91% is  1.6 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   -2.6   6.9%      -2.0   -0.8   7.9%
VORTICITY          1.6    2.7  23.0%       1.5    2.5  26.5%
VERTICAL SHEAR    12.9    7.8  18.2%      14.9    8.2  33.3%
RH                79.1   79.5   9.7%      74.8   75.2   7.0%
GOES              42.9   16.9   3.3%      42.8   16.9   2.9%
DVORAK             0.9    2.0  17.7%       0.9    2.0  13.1%

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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