Ugh, I’m really tired of this…wintry weather just won’t go away this year.
There were hints of lower elevation snow (below 1,500′) on earlier models today, but this evening’s 00z runs threw a few more hints of winter into the mix.
1. The previously expected deep low moves more or less right over us later tomorrow night and models seem to have it as more of a “blob” then nice tight low pressure center. Translation: No strong south wind on the way, maybe gusty, but nothing wild.
2. As the low moves north tomorrow night and early Saturday morning, the wraparound moisture on the northwest side of the low is steady and heavy; could drag the snow all the way down to sea level. Our RPM is showing that from maybe Tillamook up to Hoquiam. Check out the 3 day snow total, I got smarter after the coastal snow the other day and turned off the ocean stenciling. That previously blocked any snow “accumulation” over the ocean. Now you can see it trying to stick snow down around Cannon Beach and the Long Beach Peninsula. Something to keep an eye on.
3. Instead of a dry Sunday morning, both our RPM and WRF-GFS show showers re-appearing right around sunrise and continuing through the day as the cold upper trough axis moves overhead. This is with 850mb temps around -7 or -8. That’s not good enough for low elevation snow in the afternoon, but at the very least there could be flurries around for the Shamrock Run Sunday morning…brrr! Here is the 24 hour snow accumulation graphic from the WRF-GFS from 4am Sunday to 4am Monday. Not a whole lot of snow, but hints of a dusting on the hills.
So yes, another cool weekend with a least a dusting in the hills, maybe a little more. And anyone might see snowflakes in the air on Sunday, mainly in the morning.
Chief Meteorologist Mark Nelsen