by Mike Godsey,

On this day the WF-WRF barely showed a hint of an eddy. The NAM surface had a better hint. But, as I have noticed again and again for larger elongated eddies, the 950 & 975 NAM do a very good job forecasting existence
of an eddy and its duration.

Also notice how a subtle shift in the eddy location can radically change the wind direction at Bodega. Also notice how such movement made the fog in the Hwy. 92 gap suddenly disappear due to SE winds. Normally such clearing foretells good NW wind at 3rd.