* NE PACIFIC TC GENESIS INDEX * * GFS VERSION * * EP952019 10/03/19 12 UTC * TIME (hr) 0 6 12 18 24 36 48 60 72 84 96 108 120 Prob of Genesis 40% 55% LAT (deg N) 13.3 13.0 13.1 13.2 13.3 13.8 14.4 14.8 15.1 15.7 16.3 17.1 18.4 LON (deg W) 125.3 125.3 125.3 125.3 125.5 126.4 127.6 128.8 129.7 131.2 132.9 135.6 139.0 DTL (km) 1870 1893 1885 1878 1885 1918 1975 2031 2074 2145 2243 2043 1665 TRACK SOURCE AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 TCGI 0-48h Genesis Forecast: 40% is 0.9 times the sample mean ( 44%) TCGI 0-120h Genesis Forecast: 55% is 1.0 times the sample mean ( 56%) --------------------------------------------------------------------------------------------- INDIVIDUAL PREDICTOR CONTRIBUTIONS TO PROBABILITY OF GENESIS ******* 48-HR ****** ******* 120-HR ****** AVG TCGI CONT AVG TCGI CONT DIVERGENCE -2.0 0.2 1.9% -2.0 -0.6 5.5% VORTICITY 1.6 1.1 8.8% 1.5 1.0 10.1% VERTICAL SHEAR 12.9 9.4 11.9% 14.9 10.6 24.3% RH 79.1 79.0 6.7% 74.8 78.6 5.9% GOES 42.9 37.6 5.4% 42.8 37.6 5.0% DVORAK 0.9 1.0 5.1% 0.9 1.0 4.1% --------------------------------------------------------------------------------------------- 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