Weekend Update: Snow Stays Above 1,500′ & Rainy Sunday

March 9, 2012

The two sunny and warm days were sure nice, but now it’s back to a cold March reality.  We ease into the wetter weather with lots of clouds, but not much rain Saturday.  Then on Sunday we turn breezier and wetter.

A strong storm is still expected to hammer the Pacific Northwest on Monday.   In fact 00z models tonight are even deeper with the surface low pressure center (965-970 mb) moving north off the Coast compared to 24 hours ago.  But, and this is a big one, the low is forecast to turn north much farther offshore, keeping possible damaging wind mainly offshore or to our north.  Check out the 00z GEM, GFS, NAM, and ECMWF all for 18z (11am) Monday.  

Still a good windstorm for the coastline though on Monday morning.  Here in the valleys we don’t get big windstorms with low pressure centers moving so far north, to the northern tip of Vancouver Islands.

After Monday, a chilly post-frontal air mass brings snow showers down into the hills again, at least down to 1,500-2,000′, possibly a bit lower.  Then lots more rain through the following week.

By the way, for the weather groupies, don’t forget we go to Daylight Time on Sunday.  That means 00z becomes 5pm and 12z is 5am.  Yes, we have to wait one more hour for all weather maps!

Chief Meteorologist Mark Nelsen