PNW December 2022 - Part II

[Meatyorologist]

KSEA had a 23/14 spread 12/22/1983. Both the high and low are records. Both are in jeapordy tomorrow.

Kind of perfect timing for it... Outflow relaxes and skies clear this evening, temps plummet overnight. Tomorrow E-W pressure gradients tighten and high and middle level clouds filter in overhead, keeping the cold isulated. Only issue would be a midnight high on either end, or more overnight cloudcover than expected. Both of which I subtly expect at this point knowing how KSEA manages to overperform on temps.

[Timmy]

12z euro initialized with arctic air much further south than the 00z had it. 

[xfkirsten]

4 minutes ago, PuyallupChris said:

This used to be controversial and SEA didn't use deicer or salt because of damage to the environment and cars. I don't remember exactly which storm (probably 2006?) it was an absolute disaster downtown during Monday Night Football, with cars and buses blocking the freeway all night, and I think that was the incentive they needed to start deicing and salting. 

At least that's my recollection of it. I'm glad they started doing so; the roads are MUCH safer now than they used to be.

Yep, that was the one where the mayor of Seattle essentially lost his job over the fiasco!

[ShawniganLake]

3 minutes ago, PuyallupChris said:

This used to be controversial and SEA didn't use deicer or salt because of damage to the environment and cars. I don't remember exactly which storm (probably 2006?) it was an absolute disaster downtown during Monday Night Football, with cars and buses blocking the freeway all night, and I think that was the incentive they needed to start deicing and salting. 

At least that's my recollection of it. I'm glad they started doing so; the roads are MUCH safer now than they used to be.

Salt is so last century. Beet juice is the environmentally friendly alternative these days. 

[Guest hawkstwelve]

Bottomed out at 21.4f at 8:43am in Everett.

[MossMan]

3 minutes ago, PuyallupChris said:

This used to be controversial and SEA didn't use deicer or salt because of damage to the environment and cars. I don't remember exactly which storm (probably 2006?) it was an absolute disaster downtown during Monday Night Football, with cars and buses blocking the freeway all night, and I think that was the incentive they needed to start deicing and salting. 

At least that's my recollection of it. I'm glad they started doing so; the roads are MUCH safer now than they used to be.

2008 is when the S hit the fan in that department. I believe it was called Nickelsgate. The roads around Greg Nickels place was perfectly plowed but everyone else was left to fend for themselves. 

[Deweydog]

1 minute ago, ShawniganLake said:

Salt is so last century. Beet juice is the environmentally friendly alternative these days. 

I’ve always used Mrs. Dash. HBP runs in my family.

[MossMan]

3 minutes ago, ShawniganLake said:

Salt is so last century. Beet juice is the environmentally friendly alternative these days. 

And is inside my tractor tires for added weight! Beet Juice is very multi purpose! 

[Doinko]

6 minutes ago, Timmy said:

12z euro initialized with arctic air much further south than the 00z had it. 

Wow that's a major change

[Hawksfan2008]

2 hours ago, TT-SEA said:

Another couple inches of fluff overnight.    If we didn't get into the warm sector yesterday with heavy rain and 40mph wind we would truly be buried here.   We got 3 inches on Sunday night and then 4 inches on Monday night which pretty much melted in the rain and wind for 6 hours yesterday morning... then got most of it back in about 2 hours around noon... and then 2 more inches overnight.    So 3+4-4+3+2 = 8 inches net since Sunday.    On top of 1-2 inches of concrete at the bottom leftover from the late November snow.    If all that heavy rain yesterday morning was snow we would probably have another 10 inches of snowfall and would not have lost the 4 inches... so a net 14 inch difference due to getting into the warm sector.

Anyways... it gorgeous now and I would love it to stay this way.   But we have 48 hours to enjoy it before the freezing rain arrives.   

Wife and I were just talking about this! We had such a nice head start before the rain wiped it all away. I do admire how dynamic the event was though and we bounced back nicely with snowfall. I guess it only get more dynamic from here…stay safe with the ice storm. 

[SouthHillFrosty]

Just busted my ass and fell trying to de ice the drive way

[Deweydog]

16 minutes ago, MR.SNOWMIZER said:

Bellingham is 12 degrees gusting to 37. This is about the coldest outflow up there i have ever seen. Tonight could break records up there.

Right in line with the peak of the 1996, 2006 and 2008 blasts. 

Edited December 21, 2022 by Deweydog

[MossMan]

8 minutes ago, xfkirsten said:

Yep, that was the one where the mayor of Seattle essentially lost his job over the fiasco!

The last straw was when a bus full of people almost went over in December 2008. 

Edited December 21, 2022 by MossMan

[Doinko]

KPTV is going with a low temp of 19 and a high of 26 degrees Thursday. I would be really impressed if that happens

 

[SouthHillFrosty]

[MR.SNOWMIZER]

10 minutes ago, Meatyorologist said:

KSEA had a 23/14 spread 12/22/1983. Both the high and low are records. Both are in jeapordy tomorrow.

Kind of perfect timing for it... Outflow relaxes and skies clear this evening, temps plummet overnight. Tomorrow E-W pressure gradients tighten and high and middle level clouds filter in overhead, keeping the cold isulated. Only issue would be a midnight high on either end, or more overnight cloudcover than expected. Both of which I subtly expect at this point knowing how KSEA manages to overperform on temps.

Tomorrow evening could really be special with some snow, a breeze and temps around 20 degrees. 

[Timmy]

3 minutes ago, Doinko said:

Wow that's a major change

It’s not any better at 850 24 hours from now though, and I can’t see surface details on tidbits

[Doinko]

Just now, SouthHillFrosty said:

Looks like a good amount of precip over NW OR but most of it falls as sleet instead of freezing rain. That would be interesting

[SilverFallsAndrew]

Lucky SLE was still in the mid 40s at midnight .

Crunched my numbers for the month so far. Mean temp of 34.3 3.84” of precip and 3.4” of snow. Average precip is 11.5” for the month, we could potentially still get there. Last months mean was around 36.5, so even with the warm up next week we may still stay below last month, which at the time was our coldest month since February 2019. 

[Timmy]

Cascade locks is down to 32

[SilverFallsAndrew]

The first week of January is actually solidly chilly on the 12z GFS. 

[Timmy]

Pdx dls gradient is to -3.0, here is comes!

[SnowHawks]

Yea Nicholslegate- I was living on Capitol Hill in Seattle and we had a good 10 inches to a foot and the roads were not plowed. I had an Audi TT(fast car) with all wheel drive. It could go anywhere in the snow. I remember being pissed because my car kept bottoming out  because the roads weren't plowed.

[awright-31]

Ice is worse on this run. Again.

[MossMan]

5 minutes ago, SouthHillFrosty said:

So a half inch of snow, then .07” of sleet, then .12” of ice for me! Sure wish the snow line was pushed more south. 

[TT-SEA]

ECMWF is not good...

[Randyc321]

16 minutes ago, xfkirsten said:

Yep, that was the one where the mayor of Seattle essentially lost his job over the fiasco!

Well, that and the sex scandals.

[MossMan]

Just now, TT-SEA said:

ECMWF is not good...

Better for my area! 

[Requiem]

1 minute ago, TT-SEA said:

ECMWF is not good...

Yikes 

[TT-SEA]

But is warmer by early Friday afternoon compared to the 00Z run.  

[Ice_is_Everywhere]

Any chance some of the predicted freezing rain falls as snow instead?

[TT-SEA]

And Bellingham is going to get more snow...

 

[Requiem]

Another 1996 comparison-- the Gorge could have another similarly disastrous ice storm with the totals predicted.

[OysterPrintout]

Nice to see coming down the stretch the euro going our way by showing no snow but increasing ice totals. Another PDX special.

[TT-SEA]

925mb temps at 1 p.m. Friday...

 

[Deweydog]

Nice to see the sun!

[awright-31]

4 minutes ago, Ice_is_Everywhere said:

Any chance some of the predicted freezing rain falls as snow instead?

I guess the chance is always there, but not going to happen if the 850s are as modeled. 40 degrees at 5,000 feet. 28 at the surface. Recipe for disaster.

[MossMan]

7 minutes ago, TT-SEA said:

But is warmer by early Friday afternoon compared to the 00Z run.  

Downright hot at my place nearing 40! 

[TT-SEA]

ECMWF shows Portland well above freezing by early Saturday morning... not sure I believe that.

[SilverFallsAndrew]

EURO says upper 40s at PDX on Saturday, lets see how that works out.