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November 2020 Weather Observations for the PNW


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1 minute ago, SouthHillFrosty said:

Still somewhat newish to the weather game. Does this mean that we get colder air and does not slide the east or...

Cold air wouldn't dump south off Alaska with the trough well offshore as models have been showing the past few days. It would come down more from the northwest/north-northwest perhaps just off the BC Coast.

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Downvote this post if you want a windstorm.

Briefly beautiful sunrise this morning. Shot from the car. You can even see the inverted shadow of Mt. Hood.  

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EVERYBODY, GET IN HERE!!!

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Springfield, Oregon cold season 20-21 Stats:

  • Coldest high: 38F (Nov 21)
  • Coldest low: 23F (Oct 26)
  • Days with below freezing temps: 36 (Most recent: Feb 24, 2021)
  • Days with sub-40F highs: 3 (Most recent: Dec 24)
  • 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"

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3 minutes ago, DJ Droppin said:
00z GEFS Day 3 (Past 4 runs) Same trend to pinch the trough off sooner with cut-off low developing and ridge merger.
trend-gefs-2020110200-f072.500h_anom.na.gif

You say pinch off, and all I can think of is pinching a loaf....are you saying the models are going to s**t the bed?

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29 minutes ago, DJ Droppin said:
Day 7.5 Block redeveloping/reorganizing
500h_anom.na.png

I would like to see that pattern further west than shown here, so that the good portion of the Pacific coast can finally get some decent rain and mountain snow, especially in California! All this will do is produce little rain and yet more offshore winds which is the last thing we need right now!

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Pretty darn cold GFS run tonight.  The ensemble 850 graph shows a very impressive crash compared to previous runs.  Looks like the initial cold could be here as early Thursday or Thursday night.

Currently 39 after a 59 / 32 range today.  Could easily be looking at another freeze tonight.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 7.0"

Day with 1" or more snow depth = 5

Total Hail = 0.0"

Coldest Low = 23

Lows 32 or below = 35

Highs 32 or below = 2

Lows 20 or below = 0

Highs 40 or below = 5

 

 

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The surface pressure gradients become continental on tonight's ECMWF, but not overpowering which should be excellent for cold min temps.  At this point I think a couple of nights in the low to mid 20s for the cold spots looks pretty possible.  Maybe a couple of highs of 45 or below.  Tonight's GFS was hinting something a bit colder could be possible though.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 7.0"

Day with 1" or more snow depth = 5

Total Hail = 0.0"

Coldest Low = 23

Lows 32 or below = 35

Highs 32 or below = 2

Lows 20 or below = 0

Highs 40 or below = 5

 

 

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At this point they're going to have to start to name Atlantic Hurricanes by cup size once they get through the Greek Alphabet.

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Springfield, Oregon cold season 20-21 Stats:

  • Coldest high: 38F (Nov 21)
  • Coldest low: 23F (Oct 26)
  • Days with below freezing temps: 36 (Most recent: Feb 24, 2021)
  • Days with sub-40F highs: 3 (Most recent: Dec 24)
  • 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

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00z EPS Day 7 850mb Temp Anomaly

Trending colder (Past 4 runs)

EPS 4 runs Day 7.gif

6z NAM (Past 3 runs) We continue to see the trend last nights 00z GFS/GEFS, EURO/EPS all showed. The trough is pinching off even sooner with ridge merger occurring more quickly and cut-off low. The block is also trending much stronger.

6z NAM HR 69 3 runs.gif

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