Originally Posted by
langleybaston
The location and strength of jet streams has been remarkably accurately known since about 1980 and incredibly well forecast for substamtial periods ahead since about 2000. It is one of the nice uncomplicated aspects of Met., because no H2O enters the equations. Or, at least, it didn't back in the day.
iIf you want to manoeuvre and loiter, surely you would stay out of the jet stream?