CAM's have been advertising for some of that to drift off into the Seattle area later this evening into nighttime. I'm doubtful that will really happen, but the rampant accas over the last 36 hours and this general pstickiness outside have me questioning my doubts... We do have divergence aloft and a warm airmass with heights falling ahead of an incoming trough, albeit with windflow from the due west and very positive tilting. At the very least I'm hopeful we'll have a tremendous sunset this evening with midlevel cumulus drifting overhead right at golden hour
9/7/2019 was positively tilted!