PNW December 2022 - Part II

[Snownerd3000]

7 minutes ago, WeatherGeek2022 said:

I will proudly give up this event for something historic in january

I'd rather an epic white Christmas but to each their own. 

[Snownerd3000]

2 minutes ago, Frontal Snowsquall said:

Before the start of winter I had January as the most favorable month to get an Arctic Blast down to the PNW. I’m still thinking the same thing and would lean mid-late January if I had to be more specific right now.

Lines up well with Mondays weeklies if i recall. 

[ShawniganLake]

16 minutes ago, 12345WeatherNerd said:

2008 had single digits in suburban towns.

Deep snow cover with clear calm nights.  It was a decent airmass but not a top tier blast

[Kolk1604]

10 minutes ago, Gradient Keeper said:

Anything further south for Oregon? @Hawksfan2008

 

[Gradient Keeper]

4 minutes ago, Kolk1604 said:

 

Wasn't expecting to see that. Thanks.

Night Shift 6z GFS in 51 minutes

[Slushy Inch]

Trend for lower heights this weekend continues.

[Cold Snap]

Down to 31 so far. Probably will be in the 20s by morning. Hopefully there will also be better model runs in the morning!

[Slushy Inch]

Just now, Cold Snap said:

Down to 31 so far. Probably will be in the 20s by morning. Hopefully there will also be better model runs in the morning!

Down to 29 in Bothell!

[Snownerd3000]

[Cascadia_Wx]

Down to 28 here with some freezing fog.

Had 45/29 day here with the 29 set at midnight. At least we have been enjoying a lot of winter like chill since November.

[Gradient Keeper]

13 minutes ago, 12345WeatherNerd said:

Trend for lower heights this weekend continues.

Keep those higher heights shunted further and further offshore.

[Gradient Keeper]

6z ICON cold air digging a bit better. 00z Seattle thickness 528, 6z 522. Bellingham 00z 522, 6z 516

Looking at the 4-run trend shows this too.

 

 

[Slushy Inch]

1 minute ago, Gradient Keeper said:

6z ICON cold air digging a bit better. 00z Seattle thickness 528, 6z 522. Bellingham 00z 522, 6z 516

Looking at the 4-run trend shows this too.

 

 

Was about to post this!

[Slushy Inch]

3 minutes ago, Gradient Keeper said:

6z ICON cold air digging a bit better. 00z Seattle thickness 528, 6z 522. Bellingham 00z 522, 6z 516

Looking at the 4-run trend shows this too.

 

 

Pretty good model agreement I get a snowy PSCZ.

[Gradient Keeper]

Night Shift 6z GFS Day 1 (4-run trend) I'm going to try to stay awake for this run. Can't promise it.

[Gradient Keeper]

Day 2 (4-run trend)

[Gradient Keeper]

Day 3 (4-run trend) No real changes or improvements.

[Meatyorologist]

Face reveele. @Gradient Keeper Keep updating!!! Wasted as all hell with friends. I am following along with the 06z with you 🫡

[Gradient Keeper]

Day 3.5 (4-run trend)

850s

1000-500mb Thickness/Precip Type, Rate

[Meatyorologist]

Technically not a face reveal considering my publically available twitter profile pic is this

[Gradient Keeper]

I don't think the cold air digs any further south than right there.

[Meatyorologist]

06z GFS thus far looks lockstep with its 00z run.

[Slushy Inch]

[Gradient Keeper]

Day 4 (4-run trend)

[Slushy Inch]

Snow and cold faster on this run.

[Gradient Keeper]

Day 4.5 and that's it. The run is toast.

[Meatyorologist]

06z Euro will psave us

[Meatyorologist]

If I don't wake up with at least a few roasts I will be pretty disappointed (I can take jokes!!)

Seriously, this is the guy moderating this place??!

[Gradient Keeper]

Day 5

Strong east wind for the Gorge, PDX(east of I-205)

[Gradient Keeper]

Well, okay. East wind continues, PDX drops to 27 with snow

[Perturbed Member]

[Gradient Keeper]

Nice snowstorm for PDX. Gusty east winds continues to keep PDX in the 20s with heavy snow!

[Slushy Inch]

Is this consistency?

[Requiem]

Just now, 12345WeatherNerd said:

Is this consistency?

Looks like two palms clapping over PDX

[Gradient Keeper]

Temps aloft warm, PDX turns to ZR temps still well down into the 20s.

[Gradient Keeper]

2 minutes ago, 12345WeatherNerd said:

Is this consistency?

Jet suppression!!!!

[SouthHillFrosty]

I ain’t never seen a u shape snow-hole avoiding Tacoma. That’s a new one

[Gradient Keeper]

Oh crap.... PDX warms to 30, now moderate/heavy zr. Big damaging ice storm PDX(east of I-205 especially)

[SouthHillFrosty]

There is three different systems off the west coast…. On the 00z, there was one.

[Requiem]

This is unrealistic but I do like this run's tendency to push cold air through the Gorge and turn gradients offshore. The basin itself is quite cold, so there is some stuff to tap into.