snowy

6pm Wednesday…

Yesterday’s storm was exciting, but now it has fizzled over in Eastern Oregon.  There are still areas of snow falling across the Cascades, Eastern Gorge, and Eastern Oregon.  But in general we’ll be drying out region-wide by midday Thursday.  The strong northeasterly “upslope” flow into the Cascades dumped a huge amount of very dry snow on Mt. Hood ski resorts.  Even though that snow will compress a bit, it’s enough to allow Timberline, Mt. Hood Meadows, & Mt. Bachelor to offer some lift-served skiing this weekend.  Skibowl is opening their tubing runs Friday.

Mark Ski Areas Opening

I don’t see much more snow in the next week.  First it’ll be dry, then mainly dry but warmer next week

7 Day Forecast GOVT CAMP

Have travel plans?  Tough over the Cascades right now, but things should gradually improve through the weekend

Snow MtHood Outlook

All other Cascade and Siskiyou mountain highways are open this evening.  Here’s what you can expect elsewhere

Offshore (easterly) flow continues through Saturday.  At that time an approaching upper-level low and surface low tighten things up a bit.  Expect much stronger easterly wind near/in the western Gorge Saturday PM and night.  At the same time all models agree a very weak band of precipitation moves north across Oregon and southern Washington.  This CAN be a classic setup for a brief freezing rain or snow event in the metro area.  At this point I’m thinking many areas west of the Cascades will be too warm for frozen precipitation.  The 18z ECMWF model ensembles think it could be a minimal or “non-event”.  Only 7 of 51 members give us an inch of snow or more during that time.  The rest are either too warm at the surface, too warm overhead (possible freezing rain), or mainly dry.   This would explain my lack of enthusiasm for some real wintry weather in the metro area this weekend.  We’ll see how it looks in 24-48 hours.

ecmwf-ensemble-KPDX-indiv_snow_24-4877600

Our headlines graphic captures the general plan for this four-day weekend well

Mark Headlines Thanksgiving Week

I’ll be working through next Monday, keeping a close eye on things through the holiday weekend.  Check back again Friday for a weekend update on this weather blog.

Enjoy your Thanksgiving!  Chief Meteorologist Mark Nelsen

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