* NE PACIFIC TC GENESIS INDEX * * GFS VERSION * * EP992019 10/17/19 18 UTC * TIME (hr) 0 6 12 18 24 36 48 60 72 84 96 108 120 Prob of Genesis 29% 29% LAT (deg N) 10.3 10.4 10.5 10.9 11.3 11.9 11.9 11.2 10.7 9.3 9.2 10.7 10.9 LON (deg W) 125.6 126.2 126.9 127.0 126.7 126.2 126.0 125.8 126.2 126.8 127.3 126.4 127.1 DTL (km) 2140 2174 2216 2191 2136 2050 2035 2078 2149 2310 2354 2164 2198 TRACK SOURCE AP16 AP16 AP16 AP16 AP16 AP16 AP16 AP16 AP16 AP16 AP16 TABM TABM TCGI 0-48h Genesis Forecast: 29% is 0.7 times the sample mean ( 44%) TCGI 0-120h Genesis Forecast: 29% is 0.5 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 1.4 0.5% -2.0 3.1 0.0% VORTICITY 1.6 0.5 4.7% 1.5 -0.1 2.0% VERTICAL SHEAR 12.9 4.3 11.7% 14.9 8.1 17.8% RH 79.1 65.8 2.6% 74.8 61.5 2.2% GOES 42.9 23.1 2.6% 42.8 23.1 2.1% DVORAK 0.9 1.5 7.0% 0.9 1.5 4.9% --------------------------------------------------------------------------------------------- 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