So I am a newb, and throwing one out there for any mets who care to respond, but whats up with the feature off baja california that exists in GFS (weak 500mb trough) but is totally nonexistent in the GEM? I was noticing that in the GFS the heights are way higher up the pacific coast towards alaska. For all I know this feature is irrelevant but just trying to learn what to look for, I'm following the discussion on the TPV above...