December 2023 Weather in the PNW

[Deweydog]

Washed a couple vehicles today and the soap has some staying power. Looks wintry!

[TT-SEA]

39 minutes ago, Phishy Wx said:

why is there a gate, what are they scared of?  seems like the middle of bumblefuuck

Just silly status stuff.   And it's not that remote... only a couple miles off I-90 and can be at T-Mobile Park for a Mariners game in about 28 minutes.    At least in front of the stadium.   Parking is another issue. 

[SilverFallsAndrew]

4 minutes ago, TT-SEA said:

Just silly status stuff.   And it's not that remote... only a couple miles off I-90 and can be at T-Mobile Park for a Mariners game in about 28 minutes.    At least in front of the stadium.   Parking is another issue. 

To keep the peasants at bay. If they get too persistent you release the dogs. 

[Cascadia_Wx]

51 minutes ago, Phishy Wx said:

why is there a gate, what are they scared of?  seems like the middle of bumblefuuck

 

[Phil]

00z GFS is the most perfect El Niño run ever. Precisely fits the canonical progression heading into midwinter. Might as well copy/paste those CPC ENSO maps and call it a day.

[BLI snowman]

Just now, Phil said:

00z GFS is the most perfectly El Niño run ever. Precisely fits the canonical progression heading into midwinter. Might as well copy/paste those CPC ENSO maps and call it a day.

Absolutely rancid.

[Slushy Inch]

4 minutes ago, Phil said:

00z GFS is the most perfect El Niño run ever. Precisely fits the canonical progression heading into midwinter. Might as well copy/paste those CPC ENSO maps and call it a day.

Perfectly disgusting 

[Cascadia_Wx]

5 minutes ago, Phil said:

00z GFS is the most perfect El Niño run ever. Precisely fits the canonical progression heading into midwinter. Might as well copy/paste those CPC ENSO maps and call it a day.

Chill out dude. Put the Vaseline away. Lol.

[Phil]

9 minutes ago, Cascadia_Wx said:

Chill out dude. Put the Vaseline away. Lol.

Meh I’d rather it wait 2-3 weeks, AAM deposition/STJ & climo not ready for prime time just yet. Plus I’ll be in FL.

[TigerWoodsLibido]

I'd say the odds are about +10000 for anything Arctic or snowy Salem south this fallspring.

[Phil]

Those windows are the only thing standing between the observatory scientists and certain death.

I think this is from last February, but still, eek.

https://x.com/gunsnrosesgirl3/status/1737954904361050258?s=46&t=656Z973wLtGKaIyhhq_7QQ

[TigerWoodsLibido]

1 minute ago, Phil said:

Those windows are the only thing standing between the observatory scientists and certain death.

I think this is from last February, but still, eek.

https://x.com/gunsnrosesgirl3/status/1737954904361050258?s=46&t=656Z973wLtGKaIyhhq_7QQ

Mt Washington here is pretty close to the Belknap gap. Didn't realize it was that windy there.

[Phil]

Eurasian pattern substantially worse for wave driving this run. Would probably result in a failed SSW (or quick PV recovery).

[the_convergence_zone]

The fog is really shallow tonight. It’s less than 200 feet deep. I’m clear here but I can see it gaining coverage to the south of downtown. 

[GobBluth]

Big time pull back on gfs for anything meaningful first week of January. Splitsville.

[SilverFallsAndrew]

1 minute ago, GobBluth said:

Big time pull back on gfs for anything meaningful first week of January. Splitsville.

Not looking good. 

[Slushy Inch]

8 minutes ago, GobBluth said:

Big time pull back on gfs for anything meaningful first week of January. Splitsville.

Just an op run.

[Front Ranger]

3 hours ago, Kayla said:

Pretty wild that last years blast produced a -20F / -39F day in Bozeman. Good enough for a -29.5F mean temp. Coldest day on record by a whole 2 degrees. I'm still struggling to wrap my head around that. Something that even 1983, 1989 couldn't pull off.

Of course the duration of 1983 was next level.

Yeah, I mentioned it recently but almost exactly a year ago Denver saw their second coldest day on record, with -6/-24.

And then that was followed up by another major blast in late January that delivered a couple days with -30 plus departures. And then yet another impressive, but brief event in late February that produced a -36 departure.

[Front Ranger]

4 hours ago, BLI snowman said:

Absolutely. For TX/OK especially that thing was tops.

Daily depatures were around -45 in a lot of places down there. Sherman, TX had a maximum of 9, their lowest on record. OKC hit -14, their 2nd coldest on record.

Just not as widespread as 1983, but every bit as cold in the places it hit the hardest.

I kinda forgot about Feb 2021 here. Had a coldest high of 1 and coldest low of -16, both of which were the second latest that cold on record, behind only the Feb 1962 blast.

Coldest daily departure was -39.

[Slushy Inch]

[Phishy Wx]

50 minutes ago, Phil said:

Those windows are the only thing standing between the observatory scientists and certain death.

I think this is from last February, but still, eek.

https://x.com/gunsnrosesgirl3/status/1737954904361050258?s=46&t=656Z973wLtGKaIyhhq_7QQ

i've seen 165 up there.  can't imagine 200+

 

the modern observatory forecasting room, the windows are bullet proof glass and occasionally get hit by airborne projectiles, especially when there is no snow cover

[Slushy Inch]

21 minutes ago, SilverFallsAndrew said:

Not looking good. 

Ensemble is better if anything so far.

[Mercurial]

Sweet, more inversions and air quality issues are on the way!  I enjoyed seeing the sun for a few hours on Sunday, though.

[MossMan]

One year ago today I had a high in the teens and a low in the single digits. It was amazing! 

[Snownerd3000]

42 minutes ago, MossMan said:

One year ago today I had a high in the teens and a low in the single digits. It was amazing! 

Inject this into my veins 

[Brennan]

One year ago! The last two winters in South Whatcom County were perfection. Timing was everything. 

[The Blob]

My mother's aunt fell and hit her head pretty badly. Ended up with 5 staples and will be going to a nursing facility. My mom and uncle have tried to keep her home for as long as they could, but her mind has gone too much for her to safely be at home alone at night. 98 years is too long.

[Timmy Supercell]

Cute graphic from NWS Medford. Looks like these chances reflect only this upcoming Christmas, and not in general probability (which was around 30-40% in Klamath Falls in the 2010's).

Definition of a White Christmas is an inch or more of snow. 2015 and 2010 were overperformers on that with 18" and 9" depths respectively. 

[MossMan]

Currently dumping and 42 degrees. 
.23” so far on the day. 

[Cascadia_Wx]

Inversiony conditions the past few days. But definitely still on the warm side for the latter half of December. Morning fog and afternoon sun with things mixing out unusually well both afternoons. 50/35 spread on Wednesday and a 49/34 spread yesterday.

[Slushy Inch]

I talked of the convergence zone potential a couple days ago. It is really pouring 

[Cascadia_Wx]

Pouring down rain this morning with a sharp cold front moving overhead. Nice to see the northern branch in our neck of the woods for the first (and maybe last) time in a little while.

Hit 36 around midnight with some fog, 41 with moderate rain now.

[ShawniganLake]

Just 0.01” of rain here this morning.  Supposed to get windy later which will be nice to clear that stagnant damp air out or here.  It was 54F with thick fog when I was in town yesterday.  People were commenting this past week on how this is the foggiest winter they can remember.  

[RentonHill]

5 minutes ago, MossMan said:

Currently dumping and 42 degrees. 
.23” so far on the day. 

Cool radar

[Slushy Inch]

Classic pscz

[Rubus Leucodermis]

0.41" since midnight, 10.33" for the month. 44.4˚F.

[Slushy Inch]

5 minutes ago, RentonHill said:

Cool radar

I woke and heard the rain, and knowing the cold front already passed I knew it was a pscz.

[the_convergence_zone]

8 minutes ago, Slushy Inch said:

Classic pscz

Westerly wind surge through the strait, not a PSCZ (yet)

[Slushy Inch]

2 minutes ago, the_convergence_zone said:

Westerly wind surge through the strait, not a PSCZ (yet)

Westerlies through the straight literally cause a pscz. I can show you the velocity too

[Slushy Inch]