Base Leg...Turning Final - Part II

In addition to the 500 mb time-series of 'MEI-preferred' La Nina years presented in a previous post...these examples also generally depict much different flow regimes than are presently observed...altho '75 is ballpark-ish.

1950...1955...1973...1975
500 mb time-series for early NOV from prior La Nina years.

Will have to look into the winter of '75 / '76 to see how the forecast area was treated.