Synoptic Flow Results: Bar graph showing the effect of ODW observations on track forecast vector errors. The comparison shows errors in 16 forecast based upon a consensus among the three leading models (VICBAR, Global Spectral and GFDL models averaged) run with (red) and without (black) ODW data. These are raw errors in statute miles. The errors at 72 h are smaller than those at 60 h errors because some of the storms with big errors didn't last to 72 h.