December 2015 in the Pacific Northwest

[Timmy]

There's no (e) in Lightning 

thanks, your contributions to this forum are most enlightening. 

[TT-SEA]

There's no (e) in Lightning

Appears there was lightning.

[bainbridgekid]

Complete downpour here.

 

A bunch of kids are out at recess and just getting soaked.

 

I showed my class the radar beforehand and explained they might want to stay under the covered area if they go out. They found "the huge blob of orange and red" quite entertaining and impressive.

 

Trying to get 'em hooked early!

[MossMan]

Went from partly cloudy skies to heavy rain in about a 20min span!

[BLI snowman]

Just had quite the storm roll through in Salmon Creek. A good 1/4" or more of hail and several loud thunder claps.

 

Just hearing of a possible weak tornado with this cell on the south side of Battle Ground. Sounds like some damage to buildings. 

[Snowman5678]

From Battle Ground: 

https://twitter.com/defferding/status/675035079111000064/video/1

A friend who lives there is out taking pictures right now but the pics that I have seen show some pretty good damage.

[Dave]

Looks like parts of Eugene had some decent straightline winds with the storm overnight.

 

http://kval.com/resources/media/07c216d5-2fc5-447b-80a5-7a83a3781a07-SharonMatthewsphotooftreesdownonCoralyAvenue.jpg

[MR.SNOWMIZER]

I have spent much less time on this forum because of one member. Its getting terrible to not be able to enjoy the forum. Just saying.

[Front Ranger]

Latest Euro looks much more progressive  with troughs coming through the pnw.  Looks much different in the extended than yesterdays 12z euro in the extended.

 

Yup, progressive pattern is the name of the game now. Models really began to move that way yesterday and today has continued it.

[MR.SNOWMIZER]

Mountains are going to do real good over the next week.

[MossMan]

I have spent much less time on this forum because of one member. Its getting terrible to not be able to enjoy the forum. Just saying.

Only takes one. The one that has caused me to do the same thing hasn't posted in days now.

Rain has let up here, just back to gray and windy.

[SilverFallsAndrew]

Thunderstorm moving through Salem right now. Fairly frequent lightning. 

[MossMan]

Looks like your kids will be happy now Tim...snowing hard at the summit of Snoqualmie and Chains now required. Glad I made my weekly drive on Tuesday.

[SilverFallsAndrew]

Looks like a big complex of thundershowers heading onshore at Newport.

[SilverFallsAndrew]

This is a huge thunderstorm by PNW standards. High winds, frequent lightning, heavy rain, and hail. Reports of power outages around Salem. 

[luvssnow_spokane]

who's excited for the 18z!!???  OR NOT!    <_>

[Guest Winterdog]

luvssnow_seattle, on 10 Dec 2015 - 1:06 PM, said:luvssnow_seattle, on 10 Dec 2015 - 1:06 PM, said:

who's excited for the 18z!!???  OR NOT!   

I'm excited. I sometimes like to go frame by frame and compare them to the last few runs.

I actually do have a life... I think.

[BLI snowman]

This is a huge thunderstorm by PNW standards. High winds, frequent lightning, heavy rain, and hail. Reports of power outages around Salem. 

 

Yeah, these aren't your run-of-the-mill cold core thundershowers today. Borderline severe stuff all over. That low offshore has triggered some impressive instability. Lightning map is as filled up as I've ever seen it this time of the year.

[Deweydog]

Yeah, these aren't your run-of-the-mill cold core thundershowers today. Borderline severe stuff all over. That low offshore has triggered some impressive instability. Lightning map is as filled up as I've ever seen it this time of the year.

The blob!!!

 

Pretty impressive damage in the Battle Ground area.

 

Been a stormy week.

[MossMan]

Yeah, these aren't your run-of-the-mill cold core thundershowers today. Borderline severe stuff all over. That low offshore has triggered some impressive instability. Lightning map is as filled up as I've ever seen it this time of the year.

Could you pop up a link for the lightning map? I cannot seem to find it offhand.

[BLI snowman]

Could you pop up a link for the lightning map? I cannot seem to find it offhand.

 

This shows cloud to ground strikes only, but it's been pretty active all over western OR. 

 

http://www.cascadeaccess.com/~mnelsen/lightning2.jpg

[Front Ranger]

who's excited for the 18z!!???  OR NOT!    <_>

 

The model run designed by weenies, for weenies!

[stuffradio]

It's beginning to look a lot like our first snow-less year in history.

[MossMan]

This shows cloud to ground strikes only, but it's been pretty active all over western OR. 

 

http://www.cascadeaccess.com/~mnelsen/lightning2.jpg

Wow that is quite impressive, thanks!

[Deweydog]

It's beginning to look a lot like our first snow-less year in history.

I thought it started snowing in Canada on Labor Day and didn't stop until Memorial Day?

[Front Ranger]

It's beginning to look a lot like our first snow-less year in history.

 

 

 

 

 

But seriously...it's 12/10.

[BLI snowman]

It's beginning to look a lot like our first snow-less year in history.

 

I don't think anyone in the lowlands had snow in 1925. Probably gotta go back that far though to find as snowless a calendar year.

[stuffradio]

I thought it started snowing in Canada on Labor Day and didn't stop until Memorial Day?

I'm sure you're right, but Canada is a big area! I mean my city and surrounding cities including Vancouver.

[stuffradio]

snow.jpeg

 

 

 

But seriously...it's 12/10.

Everything starts pointing to signs of snow, then it gets ripped away as quickly as it begins. It just won't snow here.

[Deweydog]

I'm sure you're right, but Canada is a big area! I mean my city and surrounding cities including Vancouver.

I just figured you arrive at the border and immediately transition to a snow globe world. Go figure.

[Front Ranger]

Everything starts pointing to signs of snow, then it gets ripped away as quickly as it begins. It just won't snow here.

 

I didn't realize you meant calendar year. That is looking very possible, though I think at least a couple lowlands people on here will see some before we sing Auld Lang Syne (do Canadians do that?).

[Timmy]

I have never experienced traffic like this in my life. I-5 nb is closed due to a slide near woodland. All of the traffic is diverted through Scappoose and St. Helens on hwy 30, that is partially closed already due to a gas leak near Portland and a landslide near Rainer. Every freaking semi truck going north on I-5 is now on this 4 lane hwy that goes to 2 lanes for a 10 mile portion. Making a commute from Portland to St. Helens take 3.5 hours that usually takes 40 minutes. Portland to Longview usually takes a about 40 minutes as well, today it will take you around 5-6 hours. This is insanity.

[westcoastexpat]

I think that there is a very real chance for lowland snows for the northern part of this subforum around the December 18th period, particularly for higher hills. However, I think there is pretty much a 100% chance that snow will not be around in time for Christmas.

[Deweydog]

I think that there is a very real chance for lowland snows for the northern part of this subforum around the December 18th period, particularly for higher hills. However, I think there is pretty much a 100% chance that snow will not be around in time for Christmas.

Bold!

[MossMan]

I think that there is a very real chance for lowland snows for the northern part of this subforum around the December 18th period, particularly for higher hills. However, I think there is pretty much a 100% chance that snow will not be around in time for Christmas.

Would my Arlington location be northern enough do you think?

[TT-SEA]

Would my Arlington location be northern enough do you think?

 

 

The cut-off is exit 230 on I-5 (actually the line will be another 120 feet north of those off ramps) and the snow level on the hills will be 782 feet.   Possibly as high as 785 feet.    Details are still being worked out.

[Deweydog]

40's at PDX at peak heating. Pretty impressive for mid October.

[Front Ranger]

Would my Arlington location be northern enough do you think?

 

Nope. Move to Canada!

[Phil]

A poleward aimed Rossby wave hitting the polar jet. Wikipedia explains it better than I could.

 

We can get snow without the aid of a SSW.

That's a huge oversimplification (even the wiki definition is oversimplified), but yes, that's technically true.

 

While you don't need a SSW/PV implosion for Arctic air, you do need it either properly aligned/tilted, or simply weaker. Right now, it's none of those things.

[Phil]

Several of the biggest Arctic events in modern PNW history happened without SSWs.

Nothing requires a SSW, it's basically the "nuclear option", if you want to put it that way.

 

That said, a fully coupled, vertically aligned powerhouse PV will not do you any favors.