* NE PACIFIC TC GENESIS INDEX * * GFS VERSION * * EP992019 10/18/19 00 UTC * TIME (hr) 0 6 12 18 24 36 48 60 72 84 96 108 120 Prob of Genesis 19% 21% LAT (deg N) 11.6 11.5 11.5 11.6 11.8 12.3 12.4 11.8 11.3 10.8 11.0 11.6 12.2 LON (deg W) 125.2 125.7 125.9 126.1 126.1 125.8 125.0 124.4 124.0 124.0 124.3 124.9 125.6 DTL (km) 2000 2045 2064 2066 2051 1985 1925 1926 1948 1982 1989 1980 1982 TRACK SOURCE TABM TABM TABM TABM TABM TABM TABM TABM TABM TABM TABM TABM TABM TCGI 0-48h Genesis Forecast: 19% is 0.4 times the sample mean ( 44%) TCGI 0-120h Genesis Forecast: 21% is 0.4 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 3.1 0.0% -2.0 3.5 0.0% VORTICITY 1.6 0.6 3.6% 1.5 0.3 2.8% VERTICAL SHEAR 12.9 17.3 4.4% 14.9 21.8 9.6% RH 79.1 56.6 0.4% 74.8 51.9 0.9% GOES 42.9 36.1 2.9% 42.8 36.1 2.5% DVORAK 0.9 2.0 7.0% 0.9 2.0 5.2% --------------------------------------------------------------------------------------------- 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