December 2015 in the Pacific Northwest

[MossMan]

33 at SPB and 32 at HIO. Definitely could see some accumulations out there in the next few hours.

 

36 with a wet mix here at the moment.

Do you mind me asking where SPB and HIO are?

[Deweydog]

Chunkage!

[Timmy]

33 at SPB and 32 at HIO. Definitely could see some accumulations out there in the next few hours.

 

36 with a wet mix here at the moment.

Not sure if moisture will still be around then. Sticking in Scappoose now though

[Jesse]

Just went for another walk. Down to 33 here and starting to have some slushy accumulation on the roads. Snow is still coming down moderately. Had a period of absolutely massive flakes about 15 minutes ago.

[Gradient Keeper]

There is something magical and joyful about watching the snow fall while listening to Christmas Music. The Christmas tree and all its lights shining in all their glory. The Christmas lights on the house standing out against the snowy background. It's wondrous and it's what Winter is all about. This is great.

 

Merry Christmas. Happy New Year. Thank you, El Nino.

[Perturbed Member]

ECMWF says still good precip over all of the Portland area from 4-7.

 

How reliable do you find the euro for that?

[BLI snowman]

Do you mind me asking where SPB and HIO are?

 

Scappoose and Hillsboro.

[BLI snowman]

Not sure if moisture will still be around then. Sticking in Scappoose now though

 

All models keep it over us well into the evening now. Remember it's an anemic and slow moving system.

[TT-SEA]

How reliable do you find the euro for that?

 

 

Very reliable.

[MossMan]

Scappoose and Hillsboro.

Thanks, that's why I didn't recognize them.

[Brennan]

Solid Mix rain and snow down here at 150' elevation near Bellingham. My Mother in Law lives in Kendall, which is about 30 minutes East of Bellingham and they have 5" since this morning. Elevation out there is just under 500'. She's been sending me videos and pictures. . . Had I not been working today we'd have driven out there.

[Jesse]

Trying to post pictures but apparently the ones taken with my phone are too large.

[Perturbed Member]

HIO hitting 32F with snow at 2PM and this airmass is pretty impressive and encouraging for the rest of us.

[Jesse]

Must be some sort of mixing going on. More of a rain/snow mix now even though it is down to 32.8.

[SilverFallsAndrew]

Must be some sort of mixing going on. More of a rain/snow mix now even though it is down to 32.8.

 

Same thing that happened here about 30 minutes ago. 

[MossMan]

Almost looks like some chunky rain falling at the game. A light rain/snow mix here at Lake Goodwin currently.

[MR.SNOWMIZER]

couple pics. 3.5 inches 1.5 hrs ago. still snowing and 31 degrees. Even my little buddy likes the snow. She is my wifes service animal her name is mocha.

[Gradient Keeper]

Now moderate snow with good sized flakes and a breezy east wind. Starting to see perhaps initial stages of accumulations on the grass, vehicles. This is awesome!

[Timmy]

Same thing that happened here about 30 minutes ago.

 

That's why I think the lower levels are done once this first band of precip is done

[FroYoBro]

Must be some sort of mixing going on. More of a rain/snow mix now even though it is down to 32.8.

Yeah, I am curious if anyone knows exactly where the warming is taking place. It is just cold rain at this point at my house, 

[SilverFallsAndrew]

Yeah, I am curious if anyone knows exactly where the warming is taking place. It is just cold rain at this point at my house, 

 

I think it is the flow turning onshore at the mid levels. 

[Jesse]

Yeah, I am curious if anyone knows exactly where the warming is taking place. It is just cold rain at this point at my house, 

 

Now it's back to straight snow here. Huge flakes again.

[Perturbed Member]

The weather just can't decide what to do with itself today. I've been going back and forth from snow to rain and back over and over again. Not just due to precip rates either. Earlier I had 36F and all snow, now I'm 34F and a rain/snow mix.

 

I think we've pretty much hit our peak heating now so it should be all cooler from now on, the models also showed the upper levels cooling and we have precip well into the evening now. Sounds like we might actually get accumulations here in the next few hours.

[Deweydog]

Tenative setup which was dependent on deep wet bulb cooling. There's not much else to it.

[Timmy]

Tenative setup which was dependent on deep wet bulb cooling. There's not much else to it.

Cold pool

[Gradient Keeper]

Mesoanalysis

Upper Air Temps

2 PM (Observed over PDX) 925mb temps cooled to -0c, 850mb cooled a touch to -1.6c.

[TT-SEA]

Snowing again here after letting up for an hour.

[MossMan]

Now just plain old rain currently at the lake house now. No idea what the temp is since there is no thermometer here. Hopefully the airmass will cool once again soon.

[Perturbed Member]

HIO went from 32 32 to 32 31 in the last hour, they had much lighter precip rates but continued to slightly cool. 

[Deweydog]

Cold pool

Massively critical. 34 degree freighttrain rolling in from The Dalles.

[MR.SNOWMIZER]

Just pouring snow here. Looks to continue for a bit. Talk about a over achieving little storm.also snowing good in port orchard roads are covered.

[MossMan]

Snow mixing in again here with the heavy precip.

[Kayla]

A solid 2" here and still dumping at 32º. Pretty impressed with this much snowfall already. Photos taken about 30 minutes ago.

 

[Snowman5678]

Still just a rain snow mix here, so close yet so far. Temp actually warmed a bit to 36. 

[Deweydog]

Moderate snow in Scappoose at 32.

[luvssnow_spokane]

Looks like Oregon is getting the goods again. As most puget sounders are left wanting. Except Tim of course

[SilverFallsAndrew]

Precip briefly switched back to snow, but now it is pretty much done here. 

[epiceast]

A solid 2" here and still dumping at 32º. Pretty impressed with this much snowfall already. Photos taken about 30 minutes ago.

 

Screen Shot 2015-12-27 at 2.56.17 PM.png

Screen Shot 2015-12-27 at 2.57.01 PM.png

East of I-205? Houses look pretty suburbanish to me. Very impressive if it's snowing that far east in PDX metro.

[bainbridgekid]

A friend just posted this picture back home from Bainbridge Island at around 200 feet.

 

 

It always snows when I'm gone. 

 

 

 

 

[TT-SEA]

Pretty heavy snow here for the moment and 31.8.