Fig. 5.3 Rms vector wind errors (m/sec) at 200 hPa for operational system (MRF) vs. new system (T170) for forecasts for days 0-5
verifying over a 29-day period, verified over the N. Hemisphere (left) and North America (right). Different forecast lengths are
indicated by the various symbols; cases in which the new system was better appear in the lower right part of each plot.