epiceast

Double digits next

So is the low supposed to stall over the ocean for so long? Seems to me like it's not moving over last 4 hours..

Hell of a WRF run

Coast range is definitely cooling off

you can definitely see where the gradients go calm on 850 and 925 maps, maybe once that area catches up to heavy rain the magical evaporative cooling can happen.

Seems pretty stalled to me, just not over PDX

Looks to be a solid 12-18" in your neighborhood

That's a dump If I've seen one. Deeper than the base of our ski hill at 5k

Even more impressive! Btw OLY switched to rain so did Renton. SEA hanging on by a thread at this point, Tacoma narrows at 32.

Which one of the 7 hills do you live on, if you don't mind answering that?

WSW criteria met.

Walla Walla switches to Unknown Precip, Pendleton to Ice Pellets in the last hour... Pretty rare to have it snow in Seattle at the same time.

Now think about how you're going to make it back down 12" of isothermal heavy slush after it rain/snows all night at 34F

I see UW roofplot got an upgrade, they have precip recorded and automated precip reader. Currently 32 there, snow, and .4 for the day", so probably around 3". Also it can't be higher than 250', since it's 5 story buildings at most around the fountain. If it's raining anywhere in U-district it's gotta be near the water. edit: unless of course it's reading the precip type incorrectly

Definitely rate driven if U-district changed over but not Boeing field. Next batch of heavier rain/snow is coming though should have no problem switching back over. It definitely seems like rates+moon angle are helping Seattle out a bit.

What's the approximate good case scenario for cold front/isothermal snowfall timing for Portland?

Potentially going to reach Warning criteria in Seattle by a hair. This entire event has definitely been over performing as far as hitting populated areas rather than outlying hills.

Narrows snow, OLY snow other tacoma airports rain... I think Seattle might hold on

I see a raindrop north of lake Washington on NWS Seattle twitter. That's a very bad sign, it's all rate driven now...

Will sun angle keep most Seattle neighborhoods as snow tonight?

Yeah seeing that areas south of Olympia are still snow and sleet just east of Aberdeen makes me think this the case. Also the dryslot appearing on the radar southeast of Olympia further confirms this. Sucks for Jim, but north of a line from Renton/Issaquah is where we should see snow for a much longer period if this being driven by downsloping rather than southerly push of marine air.

I think areas north of Tacoma should do well. Seems to me like the change over is from downsloping of Rainier and not south winds..

Interesting former town. I wonder if it was named after Leicester???

I really hope this WSW verifies for rate driven event in PDX tonight(and rest of Willamette valley later). Everybody would have something out of this epic blast, even if only for a few hours.

Solid cold line just south of OLM, hills southwest of OLM below freezing(more important than SFC obs at this point). Only Mowich on at 3500' is at 35, but it's northwest of Rainier so it's probably just dry downsloping(Sorry swamp).