February Weather in the Pacific Northwest

[Poulsbo Snowman]

Poulsbo/Kitsap County starting to be threatened.

[Blizzard777]

Weather machine back home

31.9 with dew point 28

Winds calm

 

Tigard a toasty 35 and still overcast

[MikeInEverett]

Finally starting to pick up and sticking to the roofs of cars.

[wx_statman]

Nice to see this event start to put up some impressive numbers at the surface. The duration of upper level cold is getting pretty crazy. I think we have been on either side of -10c at 850mb since early Monday morning. 

 

The -10.5c over SLE on Monday afternoon was really impressive (and we're right back down to -9.5c on the 00z sounding today). I'm pretty sure that was the latest -10c sounding @ 850 since at least the early 1970s. I can access upper air data back to 1973 and I can't find another occurrence of -10c as late as 2/19. Neither Feb 2011 nor March 1989 got that cold at 850hpa over SLE, although 2011 was close at -9.5c and obviously later in the calendar. Feb 1990 & 1993 were both colder but also a few days earlier in the month. Events like March 2002 & 2009 bottomed out at around -9c. March 1, 1976 was -9.3c. Might have to go back to 1971, or maybe even any one of 1951/1955/1957/1960/1962.

[Winterdog]

Really starting to come down now!

Maybe I’ll get enough to fill in all the green areas that had standing water on them before Saturday’s CZ!

[bainbridgekid]

Stronger echoes are definitely starting to spread East and fill in from Everett up to about Mt. Vernon.

 

Hopefully they hold together and start sliding South soon to help fill in the Central Sound.

[MR.SNOWMIZER]

The -10.5c over SLE on Monday afternoon was really impressive (and we're right back down to -9.5c on the 00z sounding today). I'm pretty sure that was the latest -10c sounding @ 850 since at least the early 1970s. I can access upper air data back to 1973 and I can't find another occurrence of -10c as late as 2/19. Neither Feb 2011 nor March 1989 got that cold at 850hpa over SLE, although 2011 was close at -9.5c and obviously later in the calendar. Feb 1990 & 1993 were both colder but also a few days earlier in the month. Events like March 2002 & 2009 bottomed out at around -9c. March 1, 1976 was -9.3c. Might have to go back to 1971, or maybe even any one of 1951/1955/1957/1960/1962.

What is the coldest 850 Seattle has had that we have data for?

[Frontal Snowsquall]

Radar returns look promising off Grays Harbor and Willapa Bay. Going to be a fun night tracking this snowstorm on radar!❄❄❄❄❄❄❄❄

[snow_wizard]

Moisture from the NW is making its move now toward Seattle.

[MossMan]

Maybe I’ll get enough to fill in all the green areas that had standing water on them before Saturday’s CZ!

Indeed! And the now bare spot were my old shed was will get covered up as well!

[Jbolin]

This is what gives me confidence. Current radar and what the 18z NAM models said we would see right now. It didn't see the intense moisture developing right now off the SW WA coast.

 

NW flow, it ain't going to happen for the central sound

 

Low is diving SE, no way the associated moisture wraps around that far north.

[SilverFallsAndrew]

Well looks like I’m driving to Eugene and back tonight.

[Jesse]

Well looks like I’m driving to Eugene and back tonight.

 

Going to verify that 500' snow level in person?

[bainbridgekid]

NW flow, it ain't going to happen for the central sound

 

Low is diving SE, no way the associated moisture wraps around that far north.

He lives in Portland.

 

All eyes for us Central Sounders should be on the moisture currently blossoming in the North Sound.

[Deweydog]

Well looks like I’m driving to Eugene and back tonight.

Told you...

[HighlandExperience]

He lives in Portland.

 

All eyes for us Central Sounders should be on the moisture currently blossoming in the North Sound.

Yea I’m guessing this blob over north sound is our best bet this evening?

[SilverFallsAndrew]

Going to verify that 500' snow level in person?

These things fascinate me

[Jbolin]

He lives in Portland.

 

All eyes for us Central Sounders should be on the moisture currently blossoming in the North Sound.

Either way, still getting screwed in the central sound

[MossMan]

29 degrees at sunset as powdery moderate snow is falling and knowing that it’s not going to warm up and melt immediately is just the best!!

[Jbolin]

Yea I’m guessing this blob over north sound is our best bet this evening?

I'd be surprised if the WWA actually verify's as the NWS thinks

[wx_statman]

What is the coldest 850 Seattle has had that we have data for?

 

Well, the balloons are launched from UIL. I'm pretty sure the coldest in the modern era was -18.1c in both Feb 1989 & Dec 1990. 

[Dave]

Well looks like I’m driving to Eugene and back tonight.

Bring an umbrella.

[snow_wizard]

What is the coldest 850 Seattle has had that we have data for?

 

We ended up at -20 or a bit lower in December 1968.  I'm betting late January 1893 probably dropped to about -25 based on how cold it got.

[snow_wizard]

That moisture is really blasting down the Sound now.  I'm interested to see when it meets up with the moisture just south of Seattle.

[Brennan]

Flurries here have turned everything white including the roads. Trees have a dusting and the light snow continues to fall. 29 degrees now. 

[HighlandExperience]

Snow is picking up again. Things turning white despite anemic returns

[MikeInEverett]

Everything has a dusting here now. Nice to see and plenty left to work with.

[bainbridgekid]

Snow sticking to I-5 in Arlington:

 

[Winterdog]

Just snizzle here. 30F after a 35/17.

[MR.SNOWMIZER]

NW flow, it ain't going to happen for the central sound

 

Low is diving SE, no way the associated moisture wraps around that far north.

That little meso low is not the thing to watch. The trough of lower pressure is elongated around vancuver island and will drop south on the coast and increase the flow of precipitation from the sw.

[MossMan]

Honestly I didn’t think that I would see anything more than a flurry... already about a half inch of new with moderate snow. A February to remember for sure!

[Perturbed Member]

00z NAM has trended quite a bit north with the heaviest precip.

[HighlandExperience]

00z NAM has trended quite a bit north with the heaviest precip.

00z nam looks good for Puget Sound. The big “show” should start at 8:30 or so.

[seattleweatherguy]

Still nothing here

[snow_wizard]

The radar looks extremely promising for King County.  Interesting looking dynamics.

[Perturbed Member]

00z nam looks good for Puget Sound.

 

Yeah looks more widespread up there than the 18z. 

 

That heavy band of snow is closer to PDX this run than 18z too. Looking like a potentially decent regional event now imo. 1-2 inch  or more totals in the south sound?

 

 

 

[Geos]

Just came back over the pass and back home. Snowed almost the whole way to at least flurries. Steady light snow on the hill now.

[snow_wizard]

Still nothing here

 

It should start there any minute.  I love what I'm seeing on the radar right now.

[TigerWoodsLibido]

Now 37 dewpoint of 30. This is gonna be a close game down to the wire. Low going to come right over me.

[HighlandExperience]

It should start there any minute. I love what I'm seeing on the radar right now.

That should be pretty decent snow headed our way. Heaviest we have seen since Christmas