December 2023 Weather in the PNW

[BLI snowman]

9 minutes ago, Front Ranger said:

 

7 out of 8 months were below normal here from Nov 2022 to July 2023. Also had several very notable cold events, including hitting -24 at DEN last December, one degree short of the all time monthly record.

That -6/-24 day was the second coldest day in Denver history.

The whole Western U.S. overall had a cold winter last year. But to Andrew's point, it was one of the very few places on the planet that ran cold during that stretch of time.

[Tanis Leach]

On 12/13/2023 at 6:24 PM, GobBluth said:

What's last time a strong El Nino delivered a post new years cold blast to the nw?

If defining a cold blast as sub 20F in Portland, the 1800s. 

If sub 25F, 1998

[Gradient Keeper]

Sorry for my absence last night. I had a major headache beginning around 6 PM and it put me down pretty much the past 12+ hours. Alright back to model riding tonight and just in time to track absolutely nothing of interest! Yeah!

00z GFS in 1 hour

[Gradient Keeper]

Welp I'm actually heading out and will be back later. Feel free to post the run Day 1-10 should be absolutely scintillating if not exhilarating! Oh boy!

[Cascadia_Wx]

I was talking about a PlayStation 5, for the record.

[HuskyMaestro]

47F now, pretty decent day.

Completely done with finals! Whew.. Just one more quarter of this mess assuming I pass lol

[TT-SEA]

1 hour ago, Gradient Keeper said:

Welp I'm actually heading out and will be back later. Feel free to post the run Day 1-10 should be absolutely scintillating if not exhilarating! Oh boy!

Also missing out on a scintillating discussion over in the sports thread about this crazy TNF game between your Chiefs division rivals. 

[TT-SEA]

Northern stream action looks closer late next week on the 00Z GFS.  

[Deweydog]

11 minutes ago, TT-SEA said:

Northern stream action looks closer late next week on the 00Z GFS.  

How’s this weekend looking?

[Phishy Wx]

6 minutes ago, Deweydog said:

How’s this weekend looking?

Mild

[TT-SEA]

7 minutes ago, Deweydog said:

How’s this weekend looking?

That is confidential.   

[Front Ranger]

3 hours ago, BLI snowman said:

The whole Western U.S. overall had a cold winter last year. But to Andrew's point, it was one of the very few places on the planet that ran cold during that stretch of time.

And I was expanding on Andrew's point. Wasn't just the PNW.

[SilverFallsAndrew]

4 minutes ago, Front Ranger said:

And I was expanding on Andrew's point. Wasn't just the PNW.

Could be decades before we have another winter like that in the west. 

[Front Ranger]

17 minutes ago, SilverFallsAndrew said:

Could be decades before we have another winter like that in the west. 

It was certainly the most uniformly cold winter across the whole West basically from the coast to the western plains in quite awhile.

2016-17 was colder for the northern half of the West, but the Southwest was much cooler last winter.

Even more impressively, the cold lingered through the spring for most of the West this year.

[Deweydog]

[Snownerd3000]

I hear the song playing just watching that gif 

[SilverFallsAndrew]

1 hour ago, Front Ranger said:

It was certainly the most uniformly cold winter across the whole West basically from the coast to the western plains in quite awhile.

2016-17 was colder for the northern half of the West, but the Southwest was much cooler last winter.

Even more impressively, the cold lingered through the spring for most of the West this year.

Oh yeah. The February-April anomaly was probably a lot better in the PNW given May was one of our warmest on record regionally. I bet we won’t see another November-April as chilly across the west for another 20-30 years.

[Gradient Keeper]

Sorry I haven't been around as often lately for 00z runs. I've been pimpin', and pimpin' ain't easy.

Nah. Bowling. Lots of practice now that my vertigo is gone. Not being able to bowl for almost 23 years, so trying to get my timing right, footwork, release on the ball, etc. I was averaging 218-222. Right now I'm about 215, so pleasantly surprised and really thankful. I'm hoping to get back into regional tournaments and be highly competitive. With that being said....

 

Does anyone want 00z re-caps? or nah?

[Poulsbo Snowman]

3 minutes ago, Gradient Keeper said:

Sorry I haven't been around as often later for 00z runs. I've been pimpin', and pimpin' ain't easy.

Nah. Bowling. Lots of practice now that my vertigo is gone. Not being able to bowl for almost 23 years, so trying to get my timing right, footwork, release on the ball, etc. I was average 218-222. Right now I'm about 215, so pleasantly surprised and really thankful. I'm hoping to get back into regional tournaments and be highly competitive. With that being said....

 

Does anyone want 00z re-caps? or nah?

I was a 194 kinda guy until I blew my meniscus and ACL playing old man basketball.  Then co-vid arrived.  I have not bowled in 5 years.  I guess I need to get back out!

I'm a nah.  

[BLI snowman]

4 minutes ago, Gradient Keeper said:

Sorry I haven't been around as often later for 00z runs. I've been pimpin', and pimpin' ain't easy.

Nah. Bowling. Lots of practice now that my vertigo is gone. Not being able to bowl for almost 23 years, so trying to get my timing right, footwork, release on the ball, etc. I was average 218-222. Right now I'm about 215, so pleasantly surprised and really thankful. I'm hoping to get back into regional tournaments and be highly competitive. With that being said....

 

Does anyone want 00z re-caps? or nah?

 

[Gradient Keeper]

2 minutes ago, Poulsbo Snowman said:

I was a 194 kinda guy until I blew my meniscus and ACL playing old man basketball.  Then co-vid arrived.  I have not bowled in 5 years.  I guess I need to get back out!

I'm a nah.  

194 isn't bad at all! Haha old man basketball, yeah the last time I tried to shoot hoops that's exactly how it went. lol..... Yeah definitely if you enjoy it, do it. While you can. Do it.

6z GFS in 1 hour 39 minutes

[Gradient Keeper]

Holy pancakes 00z GFS Day 10-16 hammers us. Very nice.

Edited December 15, 2023 by Gradient Keeper
Pancakes are better and more interesting than smokes.

[Gradient Keeper]

East wind event/storm possible Sunday night into Monday am for the Western Gorge and east of I-205? 850s warm to +13 to +15c west of the Cascade crest, 925s warm to +16c while cooling to 0c over the central/eastern Gorge. PDX-DLS is forecast at -10mb or so, but with this steep of an inversion squashing down the east wind layer I suspect this could get wild quickly.

[ShawniganLake]

It is raining 0.1” so far. 

[snow_wizard]

Pretty encouraging to see the ECMWF weeklies and the GEFS extended both liking the period around Jan 10 to 15 for -PNA.  Looks like a good shot at -NAO and maybe even -EPO to go with it.

[snow_wizard]

It's pretty remarkable to see the troughing dig so deep off the West Coast it actually send the worst of the torching well east of us and leaves the NW in a situation where inversions can give us below normal temps at times.  

[Gradient Keeper]

11 minutes ago, snow_wizard said:

It's pretty remarkable to see the troughing dig so deep off the West Coast it actually send the worst of the torching well east of us and leaves the NW in a situation where inversions can give us below normal temps at times.  

Yes! Hopefully that plays out.

[TigerWoodsLibido]

Down to 37F with some fog. Nice night.

[The Blob]

Still very windy in Troutdale.

[Gradient Keeper]

48 minutes ago, The Blob said:

Still very windy in Troutdale.

Yeah, it has woke me up off/on since 2:30 am. Gradients are still increasing too.

[TT-SEA]

East wind here... 49 in North Bend.    But SEA just dropped from 43 to 39 as the mid level clouds are lifting north and the wind died there.

Should be a warm day with a decent amount of sun... ECMWF shows mid 50s in Seattle and upper 50s out here.

 

[Gradient Keeper]

Night Shift 6z GFS Day 10-16. Another GFS run long range that goes bonkers more like a Nina hammering the region! It's so far out can only speculate at this point.

 

[Front Ranger]

Barring something drastic and highly unlikely the last week of the month, this will likely be the warmest December on record for Canada and much of the northern US. Gotta love strong Ninos. #philwantedthis

This is before the incoming mega torch.

 

[Rubus Leucodermis]

0.18" since midnight, 8.35" for the month. 43.0˚F.

[TT-SEA]

Sunrise alert.

[umadbro]

Managed to drop to 32. The drive to the office this morning was icy.

[Rubus Leucodermis]

Getting close to some 60-burgers for the Willamette Valley next week.

[Cascadia_Wx]

Partly cloudy and 34 this morning. There is some light frost on the rooftops out there. Looks like a nice sunrise could be in progress soon.

Ended up with a 50/38 spread yesterday. Midnight low. Partly to mostly cloudy with a little drizzle early then some areas of light rain a bit after sunset. System mostly washed out over us, though.

[Rubus Leucodermis]

5 minutes ago, umadbro said:

Managed to drop to 32. The drive to the office this morning was icy.

Clouds and rain showers here = no frost.

[SilverFallsAndrew]

Wet morning