Up & Down Snow Level

January 8, 2008

SnapshotTonight was fun (when isn’t it in a La Nina winter?).  A secondary cold front moved inland during the commute time, bringing a batch of showers, windshift, and WARMER temps.  It finally mixed out the cool air that was trapped near the surface all day.  Then, over the last 4 hours or so, temps have been falling again as the cool air works in behind the front.  So it appears the snow levels are once again below 2,000′ this evening.  However, models and the satellite loop imply showers will die down towards sunrise.  So if you’re hoping for snow, it’s going to be tough to get it below 1,500′.

Our next system moves in tomorrow evening with a warmer start than last night’s storm.  So no snow much below 2,000′.  Milder weather Thursday-Saturday, then ridging builds in starting Sunday.  Models are all over the place for Monday and Tuesday.  ECMWF has a much sharper and colder system dropping in over the West Coast.  GFS shunts if farther east with just some rain.   We’ll see.

But BOTH models agree on strong ridging after Tuesday for nice and dry weather plus east wind…Mark Nelsen