* NE PACIFIC TC GENESIS INDEX * * GFS VERSION * * EP952019 10/03/19 18 UTC * TIME (hr) 0 6 12 18 24 36 48 60 72 84 96 108 120 Prob of Genesis 32% 33% LAT (deg N) 12.8 12.9 12.9 13.1 13.5 14.6 15.6 16.3 17.3 18.7 19.8 22.3 22.6 LON (deg W) 126.1 126.4 126.5 126.6 126.9 128.0 129.2 130.4 131.9 133.3 135.0 134.7 135.1 DTL (km) 1971 1986 1994 1987 1981 1991 1996 2036 2090 2124 2072 1960 1965 TRACK SOURCE AP17 AP17 AP17 AP17 AP17 AP17 AP17 AP17 AP17 AP17 AP17 TABM TABM TCGI 0-48h Genesis Forecast: 32% is 0.7 times the sample mean ( 44%) TCGI 0-120h Genesis Forecast: 33% is 0.6 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 1.7 0.3% -2.0 0.8 1.7% VORTICITY 1.6 1.1 7.4% 1.5 0.4 4.3% VERTICAL SHEAR 12.9 10.0 10.0% 14.9 9.4 17.0% RH 79.1 77.9 5.5% 74.8 73.7 3.5% GOES 42.9 36.5 4.5% 42.8 36.5 3.3% DVORAK 0.9 1.0 4.4% 0.9 1.0 2.8% --------------------------------------------------------------------------------------------- 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