Snowy Coast & Coast Range; Too Dry Metro Area For Snow

February 24, 2017

10am Friday…

The snow showers showed up at the Coast and in the Coast Range this morning, here’s a pic of almost 6″ in Jewell

photo_jewell

and then from Andi in Pacific City

photo_pacificcity_andi

Here in the metro area it hardly did anything at all and has been mainly dry.  No measurable precipitation at Portland, Hillsboro, Troutdale, or Aurora through 10am.  Sure, there were flurries and sprinkles around, but if the temperature is marginal for snow (32-34 degrees), you need some heavier snow showers to get it to stick (like in Pacific City pic above).  Most models were showing very light precip, but so far it’s been even lighter than they showed.  Luckily I didn’t jump on that wetter GFS model last night which implied several inches of snow west metro area today.

Now the daytime “heating” has taken over and there’s no chance for sticking snow the rest of the day.

Another wetter system comes through the region Sunday and that one should give more snow to the hills and just a mix again at the lowest elevations early in the morning.  Beyond that we’ll gradually turn warmer next week, although “warmer” just means temps coming up closer to normal.   So today and Sunday morning MAY be the last flirtation with snow for this season.  I hope…

capture

That is a cross-section showing the next 3.5 days temperature and relative humidity (green colors), along with wind barbs showing wind direction and speed.  The blue line is zero degrees (celsius).  You see the dip to sea level tomorrow (25/12 refers to 4am the 25th, Saturday).  Then a dip close to sea level again both Sunday and Monday mornings.  The reason I’m not real excited about low elevation snow Sunday is the southerly wind we’ll have on Sunday.  That almost always keeps us a few degrees above freezing and that’ll likely happen Sunday morning.  But that’s a day we’ll see lots of snow above 1,000′, could be a snowy drive into the Cascade Foothills and Coast Range too.  Keep that in mind if you’re travelling on Sunday.

Chief Meteorologist Mark Nelsen