* NE PACIFIC TC GENESIS INDEX * * GFS VERSION * * EP942019 06/30/19 06 UTC * TIME (hr) 0 6 12 18 24 36 48 60 72 84 96 108 120 Prob of Genesis 100% 100% LAT (deg N) 10.8 10.9 11.4 11.7 11.6 11.6 11.8 12.9 14.0 14.5 15.1 16.1 17.2 LON (deg W) 108.7 110.2 111.9 113.9 115.7 118.8 120.9 122.3 124.1 125.9 127.2 128.6 130.2 DTL (km) 1012 1092 1154 1281 1393 1564 1690 1689 1723 1826 1893 1911 1955 TRACK SOURCE AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 AP09 TCGI 0-48h Genesis Forecast: 100% is 2.3 times the sample mean ( 44%) TCGI 0-120h Genesis Forecast: 100% is 1.8 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 -10.0 17.5% -2.0 -5.8 16.9% VORTICITY 1.6 3.7 28.8% 1.5 4.4 33.2% VERTICAL SHEAR 12.9 9.1 16.6% 14.9 7.7 26.0% RH 79.1 77.5 8.6% 74.8 78.2 5.9% GOES 42.9 80.4 16.4% 42.8 80.4 11.0% DVORAK 0.9 1.5 12.1% 0.9 1.5 7.2% --------------------------------------------------------------------------------------------- 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