Nice little marginal thread the needle event for pdx

60F here in majority of the south Puget Sound area. Pineapple Express indeed.

The 18z still gets us in a good mountain snow pattern prior to day 10, not seeing much potential for real fun before then. Blocking is still present so things could get interesting beyond day 10

Linear, more often than not but close to 50/50

ORD positive for the month of December? I'd say practically no chance. The significant warmup is still like a week away and we'll be clicking days off the calendar in the meantime. Also, the 850 mb anomalies don't always equate to what the 2m anomalies will be, particularly if you're stuck under an inversion.