* NE PACIFIC TC GENESIS INDEX * * GFS VERSION * * EP962019 10/12/19 18 UTC * TIME (hr) 0 6 12 18 24 36 48 60 72 84 96 108 120 Prob of Genesis 36% 42% LAT (deg N) 16.0 16.4 16.7 17.4 18.3 19.8 20.5 20.3 19.4 18.5 17.1 15.5 17.1 LON (deg W) 116.3 115.9 115.4 114.8 114.4 114.1 114.3 114.5 114.7 115.0 114.4 114.9 112.7 DTL (km) 1011 950 890 790 686 546 516 547 623 713 791 969 705 TRACK SOURCE AP15 AP15 AP15 AP15 AP15 AP15 AP15 AP15 AP15 AP15 AP15 AP15 TABM TCGI 0-48h Genesis Forecast: 36% is 0.8 times the sample mean ( 44%) TCGI 0-120h Genesis Forecast: 42% is 0.7 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 2.3 0.0% -2.0 1.8 0.4% VORTICITY 1.6 2.5 13.9% 1.5 1.7 12.3% VERTICAL SHEAR 12.9 17.6 7.1% 14.9 14.1 18.6% RH 79.1 70.2 4.0% 74.8 59.8 2.4% GOES 42.9 42.8 5.7% 42.8 42.8 4.7% DVORAK 0.9 1.0 4.7% 0.9 1.0 3.4% --------------------------------------------------------------------------------------------- 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