Sunday, March 8, 2009
This is really quite extraordinary. We could actually get more snow tomorrow. Continental air is now moving through the Fraser (see map)...the sign is the low dewpoint...very dry air. But the big push comes tomorrow morning. The computer models show a great strengthening of the cold flow through the Fraser and lower terrain tomorrow morning between 7 and 10 AM, and that this air will push southward into Puget Sound. This push of cold is being initiated by a disturbance aloft...warmer, moister air will rise over the cold air producing light snow over the Puget Sound lowlands that could add up to a few inches (see map). I hate to say this...the TV types will go crazy. This is not certain, but now looks more likely than not.
Posted by Cliff Mass at 9:03 PM