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December 2020 Weather Observations for the PNW


Omegaraptor

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I agree we need to shut the pacific down but we also need that SE ridge to help stop things up in the center of the country and the west.

simply having blocking in the pacific and things riding over the top is  not enough, we need something to cause things t buckle a bit and the SE ridge does that

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That lobe over the Bering sea is going nuts on this run.

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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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gfs_2020121100_198_63.0--168_25.thumb.png.c6b3e89e72c921e413d6d54768b89906.png

From the very center of that thing. Convective at 1F... 🥴

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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3 hours ago, paulb/eugene said:

image.thumb.jpeg.ae797a8d8099d231aca0d254053a5c83.jpegIsn’t this the lowest 500mb height ever over Puget Sound?

this is March 5 1951.   Looks like 504 over Seattle, 498 Bellingham 

That’s one heck of a TPV lobe. Getting the squeeze from the blocks over the NPAC/GOA and NE-Canada/Greenland.

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24 minutes ago, puyallupjon said:

I agree we need to shut the pacific down but we also need that SE ridge to help stop things up in the center of the country and the west.

simply having blocking in the pacific and things riding over the top is  not enough, we need something to cause things t buckle a bit and the SE ridge does that

The upstream pattern and momentum transfer/propagation forces the SE-ridge. It’s not the other way around.

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14 minutes ago, Deweydog said:

Such a strange pattern.

Stable, but strange.

It’s a pattern we haven’t seen in awhile. That’s for sure.

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2 minutes ago, Phil said:

It’s a pattern we haven’t seen in awhile. That’s for sure.

1950? 😱😱😱

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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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Pacific shutting down in the long range at least. Might go somewhere.

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Cold Season 2023/24:

Total snowfall: 26"

Highest daily snowfall: 5"

Deepest snow depth: 12"

Coldest daily high: -20ºF

Coldest daily low: -42ºF

Number of subzero days: 5

Personal Weather Station on Wunderground: 

https://www.wunderground.com/personal-weather-station/dashboard?ID=KMTBOZEM152#history

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FWIW, Dec 1949 wasn't incredibly snowy at my place anyway. Then 5 feet comes down a month later.

Ashland, KY Weather

'23-'24 Winter

Snowfall - 5.50"
First freeze: 11/1 (32)
Minimum: 2 on 1/17

Measurable snows: 4
Max 1 day snow: 3" (1/19)

Thunders: 16
1/27, 1/28, 2/10, 2/22, 2/27, 2/28, 3/5, 3/6, 3/14, 3/15
3/26, 3/30, 3/31, 4/2, 4/3, 4/8, 

Severe storms: 2

-------------------------------------------------------
[Klamath Falls, OR 2010 to 2021]
https://imgur.com/SuGTijl

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Not much action for here on the GFS. Hopefully in a couple weeks models might kick that vortex out of Alaska but I doubt it. That thing is gonna end up like that Greenland vortex which wouldn't move for years.

I was bullish on this winter until that vortex set up shop there. We just aren't going to see meaningful cold when it gets stuck up there. Might be some Washington-based marginal events tho.

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Springfield, Oregon regular season 2023-24 Stats:

  • Coldest high: 25F (Jan 14, 2024)
  • Coldest low: 20F (Jan 14, 2024)
  • Days with below freezing temps: 24 (Most recent: Mar 8, 2024)
  • Days with sub-40F highs: 4 (Most recent: Jan 16, 2024)
  • Total snowfall: 0.0"
  • Total ice: 2.25”
  • Last accumulating snowfall on roads: Dec 27, 2021 (1.9")
  • Last sub-freezing high: Jan 15, 2024 (27F)
  • Last White Christmas: 1990
  • Significant wind events (gusts 45+): 0

Personal Stats:

  • Last accumulating snowfall on roads: Dec 27, 2021
  • Last sub-freezing high: Jan 16, 2024 (32F)
  • Last White Christmas: 2008
  • Total snowfall since joining TheWeatherForums: 42.0"
  • Sub-freezing highs since joining TheWeatherForums: 4

 

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GoFundMe "College Basketball vs Epilepsy": gf.me/u/zk3pj2

My Twitter @CBBjerseys4hope

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11 minutes ago, Meatyorologist said:

 

1950? 😱😱😱

Does resemble the 1950s a bit. NPAC is less amplified, but it’s getting there slowly.

image.png.a47c9d01810c5d52be225fab09a5c732.png

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As in the Pacific shuts down post day 11. Hope that solves your confusion. @Deweydog

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Cold Season 2023/24:

Total snowfall: 26"

Highest daily snowfall: 5"

Deepest snow depth: 12"

Coldest daily high: -20ºF

Coldest daily low: -42ºF

Number of subzero days: 5

Personal Weather Station on Wunderground: 

https://www.wunderground.com/personal-weather-station/dashboard?ID=KMTBOZEM152#history

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2 minutes ago, seattleweatherguy said:

D**n phil is that even possible?

I doubt it's possible anymore.

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Springfield, Oregon regular season 2023-24 Stats:

  • Coldest high: 25F (Jan 14, 2024)
  • Coldest low: 20F (Jan 14, 2024)
  • Days with below freezing temps: 24 (Most recent: Mar 8, 2024)
  • Days with sub-40F highs: 4 (Most recent: Jan 16, 2024)
  • Total snowfall: 0.0"
  • Total ice: 2.25”
  • Last accumulating snowfall on roads: Dec 27, 2021 (1.9")
  • Last sub-freezing high: Jan 15, 2024 (27F)
  • Last White Christmas: 1990
  • Significant wind events (gusts 45+): 0

Personal Stats:

  • Last accumulating snowfall on roads: Dec 27, 2021
  • Last sub-freezing high: Jan 16, 2024 (32F)
  • Last White Christmas: 2008
  • Total snowfall since joining TheWeatherForums: 42.0"
  • Sub-freezing highs since joining TheWeatherForums: 4

 

Venmo

GoFundMe "College Basketball vs Epilepsy": gf.me/u/zk3pj2

My Twitter @CBBjerseys4hope

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5 minutes ago, Kayla said:

As in the Pacific shuts down post day 11. Hope that solves your confusion. @Deweydog

So the systems beyond day 11 are hitching rides on trans-Pacific flights as opposed to a pretty typical jet stream?

It’s not a firehose, but the store is definitely still open for business.

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My preferences can beat up your preferences’ dad.

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6 minutes ago, Deweydog said:

We’ve lost the Tiger.😟

Tiger wasn't onboard in Dec 1949. Then look what happened...

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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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CMC looks primed around the end of the run. And NO Alaskan TPV lobe... 😱

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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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41 minutes ago, TigerWoodsLibido said:

Not much action for here on the GFS. Hopefully in a couple weeks models might kick that vortex out of Alaska but I doubt it. That thing is gonna end up like that Greenland vortex which wouldn't move for years.

I was bullish on this winter until that vortex set up shop there. We just aren't going to see meaningful cold when it gets stuck up there. Might be some Washington-based marginal events tho.

A SSW is probably our only hope at this point.

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