That block is just to far west 155 150 west is the sweet spot, we have scored at 160 west but any further west that 160 is tough for the most part.

Structurally speaking over the Pacific this GFS run is a minor setback compared to its 18z run. Weaker AK block, stronger STJ, more westerly oriented subtropical high over the southern US. Basically like 5% less -PNA. But in classic GFS fashion it will probably end up in the same place anyways. All in all the big picture looks similar to previous runs and I doubt ensembles will be much different, better or worse, from the 18z suite.

Have to have some sort of precip coming in or it's cold but dry and California gets all the precip. Anyway here is the jetstream for the last 3 runs.

Hr 171. Pivotal moment coming up.

Did we tell you to stop?