PNW Weather Discussion - December to Remember 2025

[Edmonds Husky]

Happy Meteorological Winter, and may this thread kick off a special December!

[Gradient Keeper]

Heck ya! December 2025 Arctic MADNESS!

Think Cold and SNOW!!!! C'MON!!!!

[Gradient Keeper]

Night Shift 6z GFS in 1 hour 47 minutes

[Edmonds Husky]

Hopefully we have a multi-thread month!

[Kolk1604]

00z EPS 

[TigerWoodsLibido]

Looks pretty warm. Still haven't had a freeze IMBY yet so it's going to blow past the Dec 4 record for my latest freeze I've ever experienced.

[Gradient Keeper]

I'm trying to find a website where past computer model runs of the ECMWF and GFS are archived. I want to see what the computer models looked like December 1-4, 2008. Anyone?

[ShawniganLake]

1 hour ago, TigerWoodsLibido said:

Looks pretty warm. Still haven't had a freeze IMBY yet so it's going to blow past the Dec 4 record for my latest freeze I've ever experienced.

Yea it’s been pretty mild.  Most of the stations around Victoria haven’t recorded a freeze except for the airport.  Victoria Gonzales area hasn’t dropped below 40F yet.  

[TigerWoodsLibido]

Ok so we're down to 34F which ties our lowest temp thus far. Let's see if it goes any lower.

[Gradient Keeper]

Night Shift 6z GFS - Initialization (4-run trend)

[Gradient Keeper]

Day 1 (4-run trend)

[Tanis Leach]

What is the QBO? Does it affect our snow chances? Does it combine with ENSO to enhance its influence? Find out in this video about thjd under-appreciated but very predictable oscillation:

 

 

 

[Gradient Keeper]

Day 2 (4-run trend)

[Gradient Keeper]

Day 3 (4-run trend)

[Gradient Keeper]

Day 4 (4-run trend)

[Gradient Keeper]

16 minutes ago, Tanis Leach said:

What is the QBO? Does it affect our snow chances? Does it combine with ENSO to enhance its influence? Find out in this video about thjd under-appreciated but very predictable oscillation:

 

 

 

Very informative. Rooting for the westerly QBO from now through the end of February. This had to take a very long time to do all of the research and put this together. Nice work.

[Gradient Keeper]

Day 5 (4-run trend) Just a wee bit different. A massive cave to the Euro. 

 

[Meatyorologist]

Poor GFS. Ah well, a cleaner reset to +PNA would be faster anyways.

[Tanis Leach]

8 minutes ago, Gradient Keeper said:

Very informative. Rooting for the westerly QBO from now through the end of February. This had to take a very long time to do all of the research and put this together. Nice work.

We're in easterly. Flip isn't due for another 12 months. 

Though if its neutral (redacted so you can see in video)

[Gradient Keeper]

Day 6 (4-run trend) This shows how awful the GFS op continues to be year after year it seems.

[Gradient Keeper]

GFS stuck at FCST HR 156/Day 6.5 

[Gradient Keeper]

Day 7 (4-run trend)

[Gradient Keeper]

Day 8 monster trough 

[Gradient Keeper]

Day 8 mega jet aimed at us.

[Gradient Keeper]

Day 9'er 

[Gradient Keeper]

Day 10

[Gradient Keeper]

Night Shift 6z GFS - 10 Day Rainfall, Snowfall totals

[DeepFriedEgg]

At this point all you can do is just point and laugh at the GFS. Good lord

[TigerWoodsLibido]

Absolutely bush league start to the snow season for Oregon.

What a goddam joke. Our weather in the south valley has become the absolute worst and most boring shitt in the United States of America. Over a month worth of fuckking 90F burgers in summer every year and now just an absolute shitshow when it comes to mountain snow.

Fuckk this shitt.

[Gradient Keeper]

Day 12 LOL GFS trying to pull off some more bs and lies. 

[TigerWoodsLibido]

Back up to 37F with some fog. Starting to wonder if we will even have a freeze at this point...

[Tyler Mode]

Starting December on a cold note...28.5 this morning so far.

[FroYoBro]

It really tried to get to freezing here, but stalled out at 33 with clouds increasing. 
 

Still waiting for my first freeze here in the warm burbs. 

[SunAndSnow]

November was wet and mild. Max high/low 67/35. 6.43” rain. Still no first freeze, although we got down to 33° around 3am here. 

[Jbolin]

I can "CONFIRM" a positive splat test on this garbage.

[Everleigh]

31.8° 31.0°dp Radar shows precipitation over me, but muh eyeballs say different. 

Edit: Guess I needed to give it a minute. Flashlight test says Rain. 31° rain.  

Edited December 1, 2025 by Everleigh

[MossMan]

[Jbolin]

1 minute ago, MossMan said:

Stay down bit*h, JUST...STAY...DOWN! 

[ShawniganLake]

4 hours ago, Gradient Keeper said:

Day 12 LOL GFS trying to pull off some more bs and lies. 

Look at all that GFS long range snow  

 

 

[LowerGarfield]

Coldest we have been yet this Fall/Winter.