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Part I - January 2020 Weather Discussion for the PNW

january 2020 winter snow cold weather PNW
* * * * * 4 votes

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#51
DJ Droppin

Posted 01 January 2020 - 02:40 AM

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MEGA blast!

 

gfs_T850_nwus_48.png


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#52
DJ Droppin

Posted 01 January 2020 - 02:41 AM

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Wow

 

gfs_T850_nwus_49.png



#53
Cloud

Posted 01 January 2020 - 02:42 AM

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Day 10

Attached File  gfs_mslp_pcpn_frzn_nwus_40.png   199.35KB   0 downloads

 


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#54
DJ Droppin

Posted 01 January 2020 - 02:42 AM

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Day 12

 

500h_anom.na.png



#55
DJ Droppin

Posted 01 January 2020 - 02:43 AM

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10 Day Snowfall totals

 

Western Washington

 

snodpc_acc.us_city_sea.png


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#56
snow_wizard

Posted 01 January 2020 - 02:44 AM

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Some uber serious cold air in play with this.  Nice run!


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Death To Warm Anomalies!

 

Winter 2019-20 stats

 

Total Snowfall = 3.7"

Day with 1" or more snow depth = 3

Total Hail = T

Coldest Low = 20

Lows 32 or below = 60

Highs 32 or below = 0

Lows 20 or below = 1

Highs 40 or below = 10

 

 


#57
DJ Droppin

Posted 01 January 2020 - 02:44 AM

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10 Day Snowfall Totals

 

Regional area

 

snodpc_acc.us_nw.png



#58
Cloud

Posted 01 January 2020 - 02:44 AM

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Wow

 

gfs_T850_nwus_49.png

 

Not arctic though, says someone. 



#59
DJ Droppin

Posted 01 January 2020 - 02:45 AM

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Day 12.5

 

500h_anom.na.png



#60
Requiem

Posted 01 January 2020 - 02:46 AM

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Great run, though those exact details at play would be somewhat sad for the lower elevations of the Portland metro (warm-nosed for the entire event). But the fact that we're seeing these kinds of systems show up in multiple runs couldn't be more exciting.


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"Let's mosey!"

 

--Cloud Strife

 

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

 

Top 5 Snow Events (post 2014):

 

(1. January 10th, 2017: 18.5 in.

(2. February 6th, 2014: 7.5 inches

(3. February 20th, 2018: 5.0 inches

(4. February 21st, 2018: 4.0 inches

(5. December 14th, 2016: 3.5 inches

 

Honourable Mentions: December 7th, 2018, February 9th, 2019.

 

Total since joining the Weather Forums: 3"


#61
DJ Droppin

Posted 01 January 2020 - 02:46 AM

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Not arctic though, says someone. 

850s -20c Gorge. Lol. This run also features bitter strong east winds too.



#62
Jginmartini

Posted 01 January 2020 - 02:46 AM

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Day 11 :o

 

500h_anom.na.png

Sweet Tea! I’ll take that!
 


Layman’s terms please 😁

#63
DJ Droppin

Posted 01 January 2020 - 02:47 AM

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Great run, though those exact details at play would be somewhat sad for the lower elevations of the Portland metro (warm-nosed for the entire event). But the fact that we're seeing these kinds of systems show up in multiple runs couldn't be more exciting.

PDX gets snow Day 11-12


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#64
DJ Droppin

Posted 01 January 2020 - 02:48 AM

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Day 13

 

500h_anom.na.png



#65
Jginmartini

Posted 01 January 2020 - 02:48 AM

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Day 10

That placement would benefit the South Sound a bit!


Layman’s terms please 😁

#66
Cloud

Posted 01 January 2020 - 02:49 AM

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Here are couple frames back starting at day 9.5 leading up to day 10. 

 

Attached File  gfs_mslp_pcpn_frzn_nwus_38.png   181.34KB   0 downloads

 

 

The 234 hour is ridiculous. 

Attached File  gfs_mslp_pcpn_frzn_nwus_39.png   193.74KB   0 downloads


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#67
DJ Droppin

Posted 01 January 2020 - 02:50 AM

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Big league cold. Historic for some locations

 

gfs_T2m_nwus_54.png



#68
Requiem

Posted 01 January 2020 - 02:51 AM

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PDX gets snow Day 11-12

 

Yeah, not too much, but it's snow nonetheless!


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"Let's mosey!"

 

--Cloud Strife

 

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

 

Top 5 Snow Events (post 2014):

 

(1. January 10th, 2017: 18.5 in.

(2. February 6th, 2014: 7.5 inches

(3. February 20th, 2018: 5.0 inches

(4. February 21st, 2018: 4.0 inches

(5. December 14th, 2016: 3.5 inches

 

Honourable Mentions: December 7th, 2018, February 9th, 2019.

 

Total since joining the Weather Forums: 3"


#69
Jginmartini

Posted 01 January 2020 - 02:52 AM

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53*

still very windy out there! Fir trees are singing 

20 to 30 mph 


Layman’s terms please 😁

#70
Cloud

Posted 01 January 2020 - 02:53 AM

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Yeah, not too much, but it's snow nonetheless!

No worries though, we're focusing too much on details right now because it's fun. 

 

But the overall takeaway is this: Timing has gone up, watch for the continued trend and it should benefit PDX as well. It's also super cold so there are a loads of potential.


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#71
Requiem

Posted 01 January 2020 - 02:55 AM

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No worries though, we're focusing too much on details right now because it's fun. 

 

But the overall takeaway is this: Timing has gone up, watch for the continued trend and it should benefit PDX as well. It's also super cold so there are a loads of potential.

 

The cold in the Columbia Basin is ridiculous this run. Can't imagine how frigid the easterlies would be in that situation.


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"Let's mosey!"

 

--Cloud Strife

 

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

 

Top 5 Snow Events (post 2014):

 

(1. January 10th, 2017: 18.5 in.

(2. February 6th, 2014: 7.5 inches

(3. February 20th, 2018: 5.0 inches

(4. February 21st, 2018: 4.0 inches

(5. December 14th, 2016: 3.5 inches

 

Honourable Mentions: December 7th, 2018, February 9th, 2019.

 

Total since joining the Weather Forums: 3"


#72
Jginmartini

Posted 01 January 2020 - 02:56 AM

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Big league cold. Historic for some locations

 

gfs_T2m_nwus_54.png

That would be the coldest Birthday in the books for me!!! 


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Layman’s terms please 😁

#73
DJ Droppin

Posted 01 January 2020 - 02:57 AM

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Upon further review that may be a big snow storm for immediate PDX metro also as I see PDX-DLS of -8 to -10mb. Ice/sleet and snow.


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#74
DJ Droppin

Posted 01 January 2020 - 02:58 AM

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Day 15  Lol

 

500h_anom.na.png



#75
Requiem

Posted 01 January 2020 - 02:59 AM

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Ahahahaha GFS shows yet another region-wide shot of snow among more frigid easterlies. No way in heck this isn't some insane cold outlier or I'm going to personally request to talk to Dome Buster's NWS contact.


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"Let's mosey!"

 

--Cloud Strife

 

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

 

Top 5 Snow Events (post 2014):

 

(1. January 10th, 2017: 18.5 in.

(2. February 6th, 2014: 7.5 inches

(3. February 20th, 2018: 5.0 inches

(4. February 21st, 2018: 4.0 inches

(5. December 14th, 2016: 3.5 inches

 

Honourable Mentions: December 7th, 2018, February 9th, 2019.

 

Total since joining the Weather Forums: 3"


#76
DJ Droppin

Posted 01 January 2020 - 03:00 AM

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This looks like fun. Massive east winds, snow

 

gfs_mslp_pcpn_frzn_nwus_59.png


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#77
Cloud

Posted 01 January 2020 - 03:00 AM

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Day 11. PDX joins in. 

Attached File  gfs_mslp_pcpn_frzn_nwus_44.png   192.69KB   0 downloads


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#78
Requiem

Posted 01 January 2020 - 03:01 AM

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gfs_mslp_pcpn_frzn_nwus_60.png


"Let's mosey!"

 

--Cloud Strife

 

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

 

Top 5 Snow Events (post 2014):

 

(1. January 10th, 2017: 18.5 in.

(2. February 6th, 2014: 7.5 inches

(3. February 20th, 2018: 5.0 inches

(4. February 21st, 2018: 4.0 inches

(5. December 14th, 2016: 3.5 inches

 

Honourable Mentions: December 7th, 2018, February 9th, 2019.

 

Total since joining the Weather Forums: 3"


#79
Jginmartini

Posted 01 January 2020 - 03:02 AM

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Ahahahaha GFS shows yet another region-wide shot of snow among more frigid easterlies. No way in heck this isn't some insane cold outlier or I'm going to personally request to talk to Dome Buster's NWS contact.

As Snow Wizard said the block will pay off at some point.   Hoping this is it!! 


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Layman’s terms please 😁

#80
Cloud

Posted 01 January 2020 - 03:02 AM

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Ahahahaha GFS shows yet another region-wide shot of snow among more frigid easterlies. No way in heck this isn't some insane cold outlier or I'm going to personally request to talk to Dome Buster's NWS contact.

There will be pull back on the 12z. Last night's 06z showed ridiculous cold as well and the 12z was more realistic. 

One of the main reason I stay up for the 06z is because of its eye-candy. lol


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#81
Jginmartini

Posted 01 January 2020 - 03:04 AM

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There will be pull back on the 12z. Last night's 06z showed ridiculous cold as well and the 12z was more realistic. 

One of the main reason I stay up for the 06z is because of its eye-candy. lol

It does leave you with a good feeling doesn’t it  :lol:


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Layman’s terms please 😁

#82
Cloud

Posted 01 January 2020 - 03:07 AM

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Well, too bad the 06z is completed. That was a lot of fun. 

Onto the GEFS


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#83
DJ Droppin

Posted 01 January 2020 - 03:17 AM

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6z GEFS Day 10

 

500h_anom.na.png



#84
DJ Droppin

Posted 01 January 2020 - 03:18 AM

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Day 11.5

 

500h_anom.na.png



#85
Cloud

Posted 01 January 2020 - 03:20 AM

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Maybe it's just me, but the GEFS isn't quite there yet at Day 10. Op may be an outlier. 



#86
DJ Droppin

Posted 01 January 2020 - 03:20 AM

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Day 13

 

500h_anom.na.png



#87
DJ Droppin

Posted 01 January 2020 - 03:22 AM

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Day 14.5

 

500h_anom.na.png



#88
DJ Droppin

Posted 01 January 2020 - 03:22 AM

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Day 16

 

500h_anom.na.png



#89
DJ Droppin

Posted 01 January 2020 - 03:24 AM

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850mb ensembles are a slight touch behind 00z GEFS. Block is just a bit too far west. Obviously the big blast beyond Day 8 is an outlier, but it does show what is possible IF the block is setup just right.


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#90
Cloud

Posted 01 January 2020 - 03:28 AM

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850mb ensembles are a slight touch behind 00z GEFS. Block is just a bit too far west. Obviously the big blast beyond Day 8 is an outlier, but it does show what is possible IF the block is setup just right.

Let see how this trends, it's looking like an outlier but it could also be the case of it leading the way. 


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#91
DJ Droppin

Posted 01 January 2020 - 03:29 AM

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I was hoping to see the mean temp 2-3c colder. No such luck. Maybe the next 3-4 ensemble runs will show that.



#92
DJ Droppin

Posted 01 January 2020 - 03:30 AM

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Let see how this trends, it's looking like an outlier but it could also be the case of it leading the way. 

Ya never know....



#93
DJ Droppin

Posted 01 January 2020 - 03:32 AM

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6z GFS Ensembles

Portland, Seattle, Vancouver BC, Yakima

 

Portland

MT8_Portland_Oregon_USA_ens.png

 

Seattle

MT8_Seattle_USA_ens.png

 

Vancouver BC

MT8_Vancouver_Kanada_ens.png

 

Yakima

MT8_Yakima_USA_ens.png


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#94
El_Nina

Posted 01 January 2020 - 03:58 AM

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This system has been all rain at Timberline.
I have to screenshot my photos otherwise they post sideways

#95
FroYoBro

Posted 01 January 2020 - 04:36 AM

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2020 is going to be nuts.

#96
TigerWoodsLibido

Posted 01 January 2020 - 05:15 AM

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Looks fun! ❄️

Springfield, Oregon cold season 19-20 Stats:

Coldest high: 34 (Nov 30)
Coldest low: 20 (Nov 29)
Days with below freezing temps: 63 (Most recent: Apr 14)

Days with sub-40F highs: 1 (Most recent: Nov 30, 2019) *Fewest all-time*
Total snowfall: 0.0"

Last accumulating snowfall: February 27, 2019
Last sub-freezing high: Jan 14, 2017 (31F)
Last White Christmas: 1990

Significant wind events (gusts 45+): 0

 

Personal Stats:

Last accumulating snowfall: February 27, 2019

Last sub-freezing high: Jan 14, 2017 (31)
Last White Christmas: 2008

Total snowfall since joining TheWeatherForums: 20.7"

GoFundMe: www.gofundme.com/CollegeBasketballvsEpilepsy

My Twitter @357jerseys4hope

24


#97
TT-SEA

Posted 01 January 2020 - 07:06 AM

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This is going to be good. I have felt it for many weeks now. You can ask my friend that I have been texting all season about how big this winter is going to be. He knows when I'm serious.

Send me his number... I need to verify your story.

This changes everything.
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**REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED**


#98
TT-SEA

Posted 01 January 2020 - 07:25 AM

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The EPS definitely shows a retrogression signal in the 13-15 day range.   Lets see if it stays consistent this time.


**REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED**


#99
hawkstwelve

Posted 01 January 2020 - 07:31 AM

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Geez... The 6z makes it look like the PNW got engulfed by a black hole.

Attached Files


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#100
hawkstwelve

Posted 01 January 2020 - 07:39 AM

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Wow... The 06z was an incredible run. It shows 1 inch/hour rates for 12 hours around D10 for Western WA and we end up with around 2ft of snow when all is said and done. That's then followed by bitterly cold air. In fact, our last day with a high above freezing is D8... After that, highs remains below freezing (sometimes way below freezing) through the end of the run.

Obviously that is an extreme solution but it just goes to show the potential this pattern has to put up impressive snow totals if things go right.
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Also tagged with one or more of these keywords: january, 2020, winter, snow, cold, weather, PNW