* NE PACIFIC TC GENESIS INDEX * * GFS VERSION * * CP932019 10/23/19 06 UTC * TIME (hr) 0 6 12 18 24 36 48 60 72 84 96 108 120 Prob of Genesis 27% 27% LAT (deg N) 9.9 10.2 10.5 10.9 11.4 12.2 13.2 14.2 14.6 14.2 13.6 13.2 13.1 LON (deg W) 145.1 146.1 147.1 148.1 149.0 150.7 152.2 153.9 156.1 158.6 161.0 162.9 164.7 DTL (km) 1491 1393 1297 1195 1093 910 730 552 480 612 818 987 1111 TRACK SOURCE AVNI AVNI AVNI AVNI AVNI AVNI AVNI AVNI AVNI AVNI AVNI TABM TABM TCGI 0-48h Genesis Forecast: 27% is 0.6 times the sample mean ( 44%) TCGI 0-120h Genesis Forecast: 27% 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 -2.0 3.2% -2.0 -0.8 3.7% VORTICITY 1.6 1.0 6.1% 1.5 0.8 5.2% VERTICAL SHEAR 12.9 19.6 5.1% 14.9 26.8 9.9% RH 79.1 76.8 4.6% 74.8 68.3 2.6% GOES 42.9 37.7 4.1% 42.8 37.7 3.1% DVORAK 0.9 1.0 3.9% 0.9 1.0 2.5% --------------------------------------------------------------------------------------------- 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: PHFO Version 2.1, February 2018