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December 2020 Weather Observations for the PNW


Omegaraptor

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I don't think I have ever seen the Euro spit out so much snow at my location.  Sometimes the Canadian has crazy totals, and the Drunk Uncle, but the Euro seems usually to be more realistic.  I can get a lot of snow, but that much in a short time seems ridiculous, though I am sure it has happened before.  

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1 minute ago, Brian_in_Leavenworth said:

I don't think I have ever seen the Euro spit out so much snow at my location.  Sometimes the Canadian has crazy totals, and the Drunk Uncle, but the Euro seems usually to be more realistic.  I can get a lot of snow, but that much in a short time seems ridiculous, though I am sure it has happened before.  

Only 33 inches? I was trying to get the King to graciously dump 40"+... Maybe next run.

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29 minutes ago, DJ Droppin said:

00z ECMWF 10 Day Rainfall, Snowfall totals (VERY WET! Washington Cascades quite snowy)

qpf_acc.us_nw.png

sn10_acc.us_nw.png

@Brian_in_Leavenworth Me and my gf have a cabin in the woods outside of Leavenworth for Christmas weekend. I hope my car can make it through deep snow😂😂

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2 minutes ago, luminen said:

Yeah man. Yellowknife will average 35/20 in winter and 95/70 in summer. Gonna be even more mosquitoes there than there already are. 🥴

The average high in Yellowknife now during winter is about 8 degrees.  So you think it will warm up 27 degrees?  Even the most extreme climate sceneries don't show anything close to that.   

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12 minutes ago, Brian_in_Leavenworth said:

I don't think I have ever seen the Euro spit out so much snow at my location.  Sometimes the Canadian has crazy totals, and the Drunk Uncle, but the Euro seems usually to be more realistic.  I can get a lot of snow, but that much in a short time seems ridiculous, though I am sure it has happened before.  

One time I saw some pics from Cle Elum during Feb 1916.  The snow was many feet deep.  I'm sure it was similar where you live.  From what I gather that was the most snow they ever had on the ground there.

  • Snow 1

Death To Warm Anomalies!

 

Winter 2023-24 stats

 

Total Snowfall = 1.0"

Day with 1" or more snow depth = 1

Total Hail = 0.0

Total Ice = 0.2

Coldest Low = 13

Lows 32 or below = 45

Highs 32 or below = 3

Lows 20 or below = 3

Highs 40 or below = 9

 

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2 minutes ago, SouthHillFrosty said:

@Brian_in_Leavenworth Me and my gf have a cabin in the woods outside of Leavenworth for Christmas weekend. I hope my car can make it through deep snow😂😂

Have a great time!  Not much snow now, and the warm weekend might wipe it out but maybe next week we get buried.  Toward Lake Wenatchee and Plain they have more snow, as usual if that is where you are going.

 

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1 hour ago, AbbyJr said:

Look at this insane Siberian SSW modelled on the GEFS. If this verifies, I like our chances of a significant arctic blast in the PNW in early-mid January. Seems models are already starting to pick up on GOA blocking right around that timeframe.

-ENSO/+QBO combo with a Siberian SSW event seems like a perfect setup for us. I don't see this busting but I could be wrong. I hope I'm not though. gfs-ensemble-all-avg-nhemi-t10_anom-9243200.thumb.png.2d200da137c430e22254393e67ca061c.png

Ka-Bam. 💥 

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Interesting. Parts of the Midwest/N-Plains will have cooler averages for 1991-2020 versus 1981-2010.

 

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13 minutes ago, Phil said:

Interesting. Parts of the Midwest/N-Plains will have cooler averages for 1991-2020 versus 1981-2010.

 

Illustrates exactly what we've seen so far in our neck of the woods. Much warmer during the summer, and slightly cooler during late winter/early spring. Then the rest of the year reflects the background warming state due to AGW, with a modest increase in average temperature.

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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1 hour ago, hawkstwelve said:

It goes to a good place...

Another comparison 00z/12z.

I will say the 12z block ended up a bit more amplified in the end because the energy moving off Asia is a bit stronger on the 00z but still looks nice.

ecmwf-ensemble-avg-namer-z500_anom-9286400.png

ecmwf-ensemble-avg-namer-z500_anom-9286400-1.png

Well the ridge is about in the right spot, trough held back over western Bering Sea. We just need amplification now and stronger signal for southeast ridge. C'MON!!!!
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06z GFS Init.

291368358_500h_anom.na-2020-12-16T012733_529.thumb.png.bc82db355c7090eed35de7d98b034de3.png

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 1

983262338_500h_anom.na-2020-12-16T013529_482.thumb.png.6584c7c663c5d3a94a6e773d74f7574c.png

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Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 2

2000600832_500h_anom.na-2020-12-16T014253_292.thumb.png.f769f735732021f2926730d4198931a9.png

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Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 3

1575294823_500h_anom.na-2020-12-16T014941_977.thumb.png.e6bcc70d71c8e5fa146ec8dfd8b28efd.png

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Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 4

1334389763_500h_anom.na-2020-12-16T015733_544.thumb.png.b90cb889762f6ff83106f5cf8cd16524.png

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Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 5

Not quite as amplified as the 00z

285061372_500h_anom.na-2020-12-16T020600_137.thumb.png.201447a7cceb84f5032efbbce052df7f.png

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 6

2139659554_500h_anom.na-2020-12-16T021204_300.thumb.png.61db87f9f0abd3dc4d6be128eecf854f.png

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Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 7

553382103_500h_anom.na-2020-12-16T021719_996.thumb.png.072fb4f7a62a0757acd9f4808ee36dcd.png

(Past 4 Runs, much less awkward on the same post) 

trend-gfs-2020121606-f168.500h_anom_na.gif.1fae0f33256b7cbe42ac8e24555aa5a4.gif

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Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 8

1248923620_500h_anom.na-2020-12-16T022258_478.thumb.png.652582a40d9d5fae0c3c6256dadb103e.png

(Past 4 runs)

trend-gfs-2020121606-f192.500h_anom_na.gif.e19252896e703252ba28d20746c82993.gif

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Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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2 minutes ago, DJ Droppin said:

I only post the past 4 runs for Days 4-7. Just a heads-up on that. You can do so beyond that point if you wish.

Alright, I won't. It's extra work and not doing so provides some continuity. I'll do so conditionally if comparing them seems pertinent to a point I want to make.

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Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 9

952478179_500h_anom.na-2020-12-16T023122_419.thumb.png.a4f3d3e005e5049e3c97e1ee39b6af72.png

  • Like 1

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 10

1663205531_500h_anom.na-2020-12-16T023525_730.thumb.png.03fada30afd2f8125e5b7c3715376339.png

  • Like 1

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS 10 Day Precip/Snowfall

1735657146_qpf_acc.us_nw(8).thumb.png.5ff8a9700c31fc1125471ea8be69fce9.png

772927265_sn10_acc.us_nw(9).thumb.png.9bc43b89bcad79556a8fa88f9855820a.png

  • Like 1

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 11

1258777500_500h_anom.npac(29).thumb.png.72926e4b0f5c0e6f39a5cfcac2e4eb9e.png

  • Like 1

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 12

990635394_500h_anom.npac(30).thumb.png.921d2e84b706f55a7ec4652e13b9b5f0.png

  • Like 1

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 13

1298282206_500h_anom.npac(31).thumb.png.abedcc78e13507370f582d54a4b48890.png

  • Like 1

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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07z GFS Day 14

141171334_500h_anom.npac(32).thumb.png.9eb14689ba778eb4f6018bb2289b6164.png

  • Like 1

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 15

2065665063_500h_anom.npac(33).thumb.png.5805b3ff7e93f417d0637ae27ffffaf0.png

  • Like 1

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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06z GFS Day 16

Beautiful pattern ruined by cutoff lows north of Hawaii. Either way, mother of all backdoor blasts as a PV lobe guns it SE into our area.

1243003602_500h_anom.npac(34).thumb.png.c994d7eded8f5e3009ce55388b5be82e.png

  • Like 1

Weather stats for MBY

Snowfall:

-Total snowfall since joining: 50.25"

-2018-19: 21"

-2019-20: 2.5"

-2020-21: 13"

-2021-22: 8.75"

-2022-23: 5.75"

-2023-24*: 0.25"

-Most recent snowfall: 0.25”; January 17th, 2024

-Largest snowfall (single storm): 8.5"; February 12-13, 2021

-Largest snow depth: 14"; 1:30am February 12th, 2019

Temperatures:

-Warmest: 109F; June 28th, 2021

-Coldest: 13F; December 27th, 2021

-Phreeze Count 2023-24: 31

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