December 2020 Weather Observations for the PNW

[GHweatherChris]

27 minutes ago, Phil said:

I don’t know about the rest of the PNW, but having been to the Seattle - Everett corridor recently, I can say without a doubt there are more hills here locally (west of the fall line) versus the suburban areas out there. Especially on major roadways.

Different story once into the boonies, though still, the roadway infrastructure is MUCH better out there in PNW vs the Appalachians, even though the cascades are much taller.

So when you tried to kill another person, was it while you were here, or there?

[Phil]

8 minutes ago, GHweatherChris said:

So when you tried to kill another person, was it while you were here, or there?

Buzz off Chris Christie.

[SilverFallsAndrew]

Doing a little exploring on Google. 

[Gradient Keeper]

00z ECMWF Day 1

[Gradient Keeper]

00z GEFS looking like La Nina roars back.

[Front Ranger]

1 hour ago, snow_wizard said:

It's just that January used to be our best month by a HUGE margin.  The potential in January is far greater than any other month.  During the period we had the very cold Januaries early cold was a lot less common.  Winters used to be more mid and back loaded.

February/March has been trending loaded.

[Gradient Keeper]

Day 2

[Gradient Keeper]

@Requiem

10 PM PDX-DLS -9.0mb. East wind is howling here pretty hefty gusts 40mph+

[Gradient Keeper]

Day 3

[Jesse]

1 hour ago, Phil said:

I don’t know about the rest of the PNW, but having been to the Seattle - Everett corridor recently, I can say without a doubt there are more hills here locally (west of the fall line) versus the suburban areas out there. Especially on major roadways.

Different story once into the boonies, though still, the roadway infrastructure is MUCH better out there in PNW vs the Appalachians, even though the cascades are much taller.

Have you actually been to either Seattle or Portland? There are a ton of hills in both cities, reaching 500-1000’ elevation. It’s not even close back east. The suburbs are usually even hillier.

[Gradient Keeper]

Wow. RAGING east wind. This is awesome!

[Jesse]

1 hour ago, Phil said:

Mount Washington’s winds are largely the result of topography, not the height of the mountain. It’s not even the tallest mountain in New England, let alone the rest of the Appalachians.

It’s been a touchy subject in the past, but take a look at NWS point-and-click forecasts for Mt. Rainier and Mt. Washington, respectively. I think you’ll get the general idea.

 

Yeah, Mt. Rainier will almost always be colder and/or windier. Good point.

[Gradient Keeper]

Day 4 Hmmm....

[Gradient Keeper]

Day 5

[Front Ranger]

If the Cascades and the Appalachians had a fight, who do ya think would win?

[umadbro]

4 minutes ago, Front Ranger said:

If the Cascades and the Appalachians had a fight, who do ya think would win?

Dominion

[Gradient Keeper]

Day 6

[Weather1011]

1 hour ago, Rubus Leucodermis said:

If anything, it’s a minority of wintertime ridges that make for a strong, foggy inversion. Everything has to go just right to get one here. It’s not like, say, the valleys of northern Utah and Nevada, which can get socked-in with cold and fog relatively easily in winter.

And in general, it is easier for the Willamette Valley from about Woodburn south to get such inversions than points north. The Rogue Valley around Medford is also a common place for such things to happen.

I think for someone who admits weather has ruined there life, Wishcasting or ignoring what you are seeing for something you hope isn't good at all. Just adds more to the let downs for no reason. 

[Dave]

24 minutes ago, Jesse said:

Have you actually been to either Seattle or Portland? There are a ton of hills in both cities, reaching 500-1000’ elevation. It’s not even close back east. The suburbs are usually even hillier.

Still waiting for pictures of fish.

[Weather1011]

59 minutes ago, GHweatherChris said:

So when you tried to kill another person, was it while you were here, or there?

Wait " another" ? lmao this has happened before

[Gradient Keeper]

Day 7

[Gradient Keeper]

Day 8

[Gradient Keeper]

00z GEFS (850s / Precip)

Portland

Seattle

500mb Height Anomaly 16 Day GIF

[Gradient Keeper]

00z ECMWF Day 9'er Hmmm....

 

[Meatyorologist]

Wow, it isn't often in today's climate that you see these kinds of widespread negative temperature anomalies over the Arctic ocean. Kind of offsets the boredom of no snow in the foreseeable future (less than 10 days). And who knows, maybe this cold loading will come back to gift us later...

[Meatyorologist]

2 minutes ago, DJ Droppin said:

00z ECMWF Day 9'er Hmmm....

 

Better blocking signature than the 12z, but for this specific run it looks as if the pattern will be too progressive for any sort of cold snap in the LR, even with extrapolating. Of course though none of this will verify anyways, it's just neat to follow along.

[Gradient Keeper]

I wish y'all could hear this wind right now! Wow. I would call this really close to an east wind storm. Stronger than this past Tuesday night/Wednesday morning.

[Deweydog]

1 minute ago, DJ Droppin said:

I wish y'all could hear this wind right now! Wow. I would call this really close to an east wind storm. Stronger than this past Tuesday night/Wednesday morning.

[Gradient Keeper]

00z ECMWF 10 Day Rainfall, Snowfall totals

[Gradient Keeper]

11 PM PDX-DLS back to -10.4mb. How much stronger is this going to get! I'm soo exhausted, but these are absolutely crazy wind gusts. Good luck sleeping if you live east of I-205.

[Gradient Keeper]

11 PM Mesoanalysis - 925mb Temps. A bit of a cold pool trying to establish itself over the Eastern Gorge and western portions of the lower Columbia Basin. I thought we'd see this.

[Requiem]

6 minutes ago, DJ Droppin said:

11 PM PDX-DLS back to -10.4mb. How much stronger is this going to get! I'm soo exhausted, but these are absolutely crazy wind gusts. Good luck sleeping if you live east of I-205.

Peak of the winds seems to be early morning according to most models... whew. Already howling here.

[TigerWoodsLibido]

29F with some freezing fog.

[Deweydog]

Pretty inverty...

30 here but 50 just up the hill at Larch.

[Gradient Keeper]

Just now, Deweydog said:

Pretty inverty...

30 here but 50 just up the hill at Larch.

Yep, and Larch Mt MUCH lighter winds than this past Tuesday night/Wednesday morning. Almost entirely gap/Gorge winds.

[Deweydog]

6 minutes ago, DJ Droppin said:

Yep, and Larch Mt MUCH lighter winds than this past Tuesday night/Wednesday morning. Almost entirely gap/Gorge winds.

Eh, there’s still very much a downslope component. There’s no way they’re in the low 50’s and gusting around 30mph during an entirely thermal gradient-driven event. 

[GHweatherChris]

1 hour ago, Phil said:

Buzz off Chris Christie.

You admitted to attempting vehicular homicide, so....

[GHweatherChris]

2 minutes ago, hawkstwelve said:

That's a pretty expansive block shown on the 00z Euro just a ways upstream from us.

If it could just scoot a little bit east, we'd be in business.

 

It would need to scoot alot a bit east 

[Weather1011]

7 minutes ago, GHweatherChris said:

You admitted to attempting vehicular homicide, so....

He might come for you next.. Keep a eye on the roads.

[TigerWoodsLibido]

10 minutes ago, GHweatherChris said:

It would need to scoot alot a bit east 

Well, it's still 11 days out so who knows?