Fig. 5b Average of the cases presented in Fig. 5a further broken down into zonal wave number groups and
plotted as a function of forecast length. Waves 1-20 are shown by the largest curves; other wave groups are shown
in inset. Various models are plotted with the number of cases for each model at day five printed at the top.
Northern Hemisphere is on the top and Southern Hemisphere on the bottom, averages printed in inset. Note that in the Northern Hemisphere plot the green curve for the PRY is partially hidden by the UK curve.