* NE PACIFIC TC GENESIS INDEX * * GFS VERSION * * EP962019 10/12/19 12 UTC * TIME (hr) 0 6 12 18 24 36 48 60 72 84 96 108 120 Prob of Genesis 51% 61% LAT (deg N) 16.0 16.4 16.9 17.2 17.4 18.0 18.2 18.4 18.4 17.7 16.6 15.5 14.5 LON (deg W) 116.2 116.3 115.9 115.9 115.6 115.0 115.0 115.5 116.0 116.8 117.3 117.4 117.8 DTL (km) 1004 977 908 883 845 753 737 759 799 914 1035 1131 1243 TRACK SOURCE AP14 AP14 AP14 AP14 AP14 AP14 AP14 AP14 AP14 AP14 AP14 AP14 AP14 TCGI 0-48h Genesis Forecast: 51% is 1.2 times the sample mean ( 44%) TCGI 0-120h Genesis Forecast: 61% is 1.1 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 0.8 1.5% -2.0 1.1 2.1% VORTICITY 1.6 2.5 17.8% 1.5 1.9 17.3% VERTICAL SHEAR 12.9 17.5 9.1% 14.9 14.7 23.9% RH 79.1 72.8 5.9% 74.8 66.2 4.2% GOES 42.9 63.6 11.0% 42.8 63.6 9.2% DVORAK 0.9 1.0 6.0% 0.9 1.0 4.4% --------------------------------------------------------------------------------------------- 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