* NE PACIFIC TC GENESIS INDEX * * GFS VERSION * * EP952023 09/18/23 06 UTC * TIME (hr) 0 6 12 18 24 36 48 60 72 84 96 108 120 Prob of Genesis 47% 65% LAT (deg N) 11.9 12.5 13.1 13.6 14.1 14.9 15.4 15.6 16.2 17.8 19.6 21.0 22.4 LON (deg W) 111.8 112.2 113.0 113.8 114.9 117.6 120.8 123.3 124.8 125.8 126.8 127.2 127.0 DTL (km) 1105 1086 1105 1108 1105 1195 1370 1536 1614 1568 1507 1447 1348 TRACK SOURCE AVNI AVNI AVNI AVNI AVNI AVNI AVNI AVNI AVNI AVNI AVNI AVNI AVNI TCGI 0-48h Genesis Forecast: 47% is 1.1 times the sample mean ( 44%) TCGI 0-120h Genesis Forecast: 65% is 1.2 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 -0.6 3.0% -2.0 -1.8 9.1% VORTICITY 1.6 2.2 15.2% 1.5 2.2 20.2% VERTICAL SHEAR 12.9 11.5 12.0% 14.9 18.1 22.9% RH 79.1 85.1 7.3% 74.8 85.9 4.5% GOES 42.9 22.7 3.5% 42.8 22.7 3.3% DVORAK 0.9 1.0 5.7% 0.9 1.0 4.6% --------------------------------------------------------------------------------------------- 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 2.1, February 2018