December Weather In the PNW

[SilverFallsAndrew]

25 degrees already.  Clear skies and no freezing fog at my location, but the airport is reporting it.

 

Down to 24 now... Would not shock me if they pulled off a 19 one of these nights.

 

28 here...

[Jbolin]

Down to 24 now... Would not shock me if they pulled off a 19 one of these nights.

 

28 here...

https://www.youtube.com/watch?v=u2-7tqIlnLI

[Tenochtitlan]

meanwhile...thundersnow in south Texas! http://w1.weather.gov/data/obhistory/KCRP.html

[Tyler Mode]

Seattle did drop to freezing just after midnight...now fogged in.  24 here with high clouds moving in, should provide for a nice sunrise.  4 years ago today it was down to 8 here and -10 in Eugene.

 

http://www.wrh.noaa.gov/mesowest/getobext.php?wfo=sew&sid=KBFI&num=72&raw=0

[HardDrinkinLincoln]

A picture from the archives (2007) to note the arrival of the freezing fog yesterday.

 

 

[TT-SEA]

Seattle did drop to freezing just after midnight...now fogged in.  24 here with high clouds moving in, should provide for a nice sunrise.  4 years ago today it was down to 8 here and -10 in Eugene.

 

http://www.wrh.noaa.gov/mesowest/getobext.php?wfo=sew&sid=KBFI&num=72&raw=0

 

And the growing season finally ends at SEA! 

 

February 26 - December 8

 

(If it has to be below 32 as the cut off then it was February 2 - December 8)

 

It was a very quick and brief 9 months.   Time for the long winter nap.  

[Tyler Mode]

And the growing season finally ends at SEA! 

 

February 26 - December 8

 

(If it has to be below 32 as the cut off then it was February 2 - December 8)

 

It was a very quick and brief 9 months.   Time for the long winter nap.  

Should be 6 weeks of winter in Seattle this year...

[MR.SNOWMIZER]

50 degrees at paradise but with 10% humidity!! Good news is we won't loose much snow with the low humidity.

[TT-SEA]

50 degrees at paradise but with 10% humidity!! Good news is we won't loose much snow with the low humidity.

 

A beautiful 24 degrees at Snoqualmie Pass with snow still on the trees.    Can't imagine it will go above freezing now until the next weather system.

 

[Jesse]

Frosty and 28 here. Beautiful sunrise.

[Deweydog]

Mom... The twins are fighting again...

[TT-SEA]

Frosty and 28 here. Beautiful sunrise.

 

Gorgeous sunrise.   

 

Did the wind die there?   I had to put rocks on the garbage can lids on the street just now because the wind is so strong this morning here.

[MR.SNOWMIZER]

There is more to the groeing season than ​temp. . Sun angle has affect as well. 

[MR.SNOWMIZER]

Tim was born at stampede pass as well.   

[TT-SEA]

There is more to the groeing season than ​temp. . Sun angle has affect as well. 

 

Definitely.   Its a more appropriate concept in the Midwest when cold temps will delay or cut the season short when the sun angle is high.   They always talked about it every year when I was growing up there.   

[Timmy]

Mom... The twins are fighting again...

I know how to get them to stop.

 

“Breitbart is the only news source anyone should use”

[Geos]

It went down to 29 here. Frost not quite as thick this morning. Colorful sunrise right now.

[Jesse]

Mom... The twins are fighting again...

The false equivalency bit gets old.

[Deweydog]

The false equivalency bit gets old.

If it was false...

[Chewbacca Defense]

They put down de icer around here pretty much every time temps drop near freezing. Helps with black ice prevention.

 

Same for Bellingham, its starting to get pretty nasty in the neighborhoods in the hills NE of town.  The main roads are all treated and in good shape.  Here are a couple of pics from this morning.  One is my driveway which is on the north side of my house (and pretty short/steep.)  The other is at the end of my street.  

[TT-SEA]

Sunrise...

 

[Gradient Keeper]

6z GFS Ensembles. Some improvements for Portland with less 'warmer' members, but nothing too chilly. I do see several colder -5c to -10c members for Seattle, Yakima. The ensemble mean temps needs work though.

 

Other than that, huge east winds continue in Gresham/Troutdale above the river where gusts 45-56mph have occurred and are ongoing.

[Gradient Keeper]

12z GFS

 

10 AM Sunday much stronger 964mb low offshore. Let's see what impacts that has downstream on our block.

[Jesse]

If it was false...

It mostly is.

[Timmy]

The graphics and legend that weather.us is using for the ECMWF surface products is pretty weird and doesn't make a whole lot of sense. Speaking from experience though, it's 0.4"-0.6 of liquid falling as snow or 4-6" of snow at Charlotte.

 

You flying out there tomorrow?

Yeah, butit doesnt look like that is going to happen. At least the NWS is not going for any accumulation for Charlotte.

[TT-SEA]

Friend in Houston posted this pic this morning...

 

 

 

Also have family in Atlanta and they are reporting snow this morning on facebook.

[Gradient Keeper]

12z GFS

 

Day 3

http://maps1.pivotalweather.com/maps/models/gfs/2017120812/072/500h_anom.na.png

[luvssnow_spokane]

I got down to 26 last night. Chilly!

[Deweydog]

Friend in Houston posted this pic this morning...

 

 

 

Also have family in Atlanta and they are reporting snow this morning on facebook.

Looks gloomy.

[TT-SEA]

Looks gloomy.

 

Sloppy!  

[TT-SEA]

Seriously cool view of the fog this morning from the Space Needle cam.   Check out that wall of fog on the south side of downtown...

 

[Kayla]

Yeah, butit doesnt look like that is going to happen. At least the NWS is not going for any accumulation for Charlotte.

 

00z ECMWF is now actually showing 5-7" in Charlotte but temps are looking really marginal (33F-36F). I'm assuming the NWS is hedging their bets on just a bunch of heavy, wet, non sticking snowfall.

[Gradient Keeper]

Day 5 Pivotal is slow, so have to use Tidbits for now

[Geos]

Same for Bellingham, its starting to get pretty nasty in the neighborhoods in the hills NE of town.  The main roads are all treated and in good shape.  Here are a couple of pics from this morning.  One is my driveway which is on the north side of my house (and pretty short/steep.)  The other is at the end of my street.  

 

If I wouldn't know any better, I would take that as a dusting of snow!

[GobBluth]

Out to 168 the Kona low is splitting off sooner.

[MossMan]

PNA forecast is looking much improved!

[MR.SNOWMIZER]

Btw, palm trees look so ******* stupid in this part of the world!!

[Gradient Keeper]

Day 7

[Jesse]

Gorgeous sunrise.   

 

Did the wind die there?   I had to put rocks on the garbage can lids on the street just now because the wind is so strong this morning here.

Yeah, it is dead calm here now.

[Gradient Keeper]

Back-to-back 58mph gusts in Troutdale just now

http://www.wrh.noaa.gov/mesowest/timeseries.php?sid=F0409&table=1&banner=off

 

Stromboli Volcano on Sicily erupting. Amazing!

https://www.skylinewebcams.com/en/webcam/italia/sicilia/messina/stromboli.html