* NE PACIFIC TC GENESIS INDEX * * GFS VERSION * * EP952019 10/03/19 00 UTC * TIME (hr) 0 6 12 18 24 36 48 60 72 84 96 108 120 Prob of Genesis 29% 30% LAT (deg N) 13.6 13.3 13.0 12.8 12.7 12.6 12.8 13.3 13.9 14.6 16.6 16.9 17.5 LON (deg W) 124.1 124.5 124.8 124.9 125.0 125.5 126.6 127.8 128.8 129.8 129.1 129.7 130.0 DTL (km) 1755 1809 1856 1880 1895 1941 2010 2069 2106 2121 1911 1938 1920 TRACK SOURCE AP01 AP01 AP01 AP01 AP01 AP01 AP01 AP01 AP01 AP01 TABM TABM TABM TCGI 0-48h Genesis Forecast: 29% is 0.7 times the sample mean ( 44%) TCGI 0-120h Genesis Forecast: 30% 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 0.1 1.6% -2.0 -0.7 3.7% VORTICITY 1.6 1.5 8.5% 1.5 0.8 5.6% VERTICAL SHEAR 12.9 9.2 9.6% 14.9 13.3 14.6% RH 79.1 78.3 5.2% 74.8 72.1 3.1% GOES 42.9 26.5 3.0% 42.8 26.5 2.2% DVORAK 0.9 0.5 1.2% 0.9 0.5 0.8% --------------------------------------------------------------------------------------------- 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