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October 2020 Weather Observations for the PNW


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Here's the snow thus far

By far the most impressive October storm I've witnessed here since 2012 when I bought property. Ended up with 9 inches of powder and is currently 22 degrees down from 24 at 9am. 

Just catching up to everything this morning. I think given that the user base of the forum has been somewhat of a close knit community for 15+ years, there is a bit of leeway given when it comes to be

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34F DP 19F frosty ground already. Beautiful moon and stars tonight.

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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: 15 (Most recent: Nov 22, 2020)
  • Days with sub-40F highs: 1 (Most recent: Nov 21)
  • 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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29 at Olympia.

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Snowfall                                  Precip

2020-21: 0                         2020-21: 3.38"

2019-20: 23.5"                   2019-20: 58.54"

2018-19: 63.5"                   2018-19: 66.33"

2017-18: 30.3"                   2017-18: 59.83"

2016-17: 49.2"                   2016-17: 97.58"

2015-16: 11.75"                 2015-16: 68.67"

2014-15: 3.5"
2013-14: 11.75"                  2013-14: 62.30
2012-13: 16.75"                 2012-13: 78.45  

2011-12: 98.5"                   2011-12: 92.67"

 

It's always sunny at Winters Hill! 

 

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It may get down to the teens tonight here. The low DP coupled with the wind quickly becoming calm is causing the temps here to plummet. As TWL mentioned, it is pretty much at freezing already. No frost here because everything is bone dry. Leaves that were juicy just a couple of days ago are now crunchier than a potato chip. Eugene can pull off some lows out of left field in these conditions.

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3 hours ago, MossMan said:

Yeah I usually cool fairly rapidly in the evening but will usually stop abruptly before midnight, then usually drop another 2 degrees at daybreak. 

Yeah, exactly the same here. Anyone have a rationale/explanation? On clear winter nights temperature will drop rapidly until 11 pm or midnight and then will hold constant until the hour or so before sunrise when it will drop another couple of degrees.

Home Wx Station Stats (Since January 2008):

Max Temp: 96.3F (2009)   Min Temp: 2.0F (2008)   Max Wind Gust: 45 mph (2018)   Wettest Day: 2.43 (2012)   Avg Yearly Precip: 37"

Snowfall Totals

2008-09: 30" | 2009-10: 0.5" | 2010-11: 21" | 2011-12: 9.5" | 2012-13: 0.2" | 2013-14: 6.2" | 2014-15: 0.0" | 2015-16: 0.25"| 2016-17: 8.0" | 2017-18: 0.9"| 2018-19: 11.5"

2019-20: 11"

[1/9: Flakes, 1/12: Trace, 1/13: 0.25", 1/14: 8.5", 1/15: 2.0", 1/16: Flakes, 1/17: 0.25"]

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4 minutes ago, Skagit Weather said:

Yeah, exactly the same here. Anyone have a rationale/explanation? On clear winter nights temperature will drop rapidly until 11 pm or midnight and then will hold constant until the hour or so before sunrise when it will drop another couple of degrees.

If conditions are ripe for radiational cooling, the ambient temperature will chase the dew point all night if all things remain equal.  Cooling tends to slow as the temp/dp spread shrinks.

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My preferences can beat up your preferences’ dad.

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Sitting at 33 here now.  I just saw two stations in Enumclaw are showing 28.  That is flat out amazing.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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6 minutes ago, Deweydog said:

If conditions are ripe for radiational cooling, the ambient temperature will chase the dew point all night if all things remain equal.  Cooling tends to slow as the temp/dp spread shrinks.

Makes sense, but I still find the sudden drop at sunrise after such a long plateau surprising.

Anyways, 45/27 day here with a current temp of 30.

Home Wx Station Stats (Since January 2008):

Max Temp: 96.3F (2009)   Min Temp: 2.0F (2008)   Max Wind Gust: 45 mph (2018)   Wettest Day: 2.43 (2012)   Avg Yearly Precip: 37"

Snowfall Totals

2008-09: 30" | 2009-10: 0.5" | 2010-11: 21" | 2011-12: 9.5" | 2012-13: 0.2" | 2013-14: 6.2" | 2014-15: 0.0" | 2015-16: 0.25"| 2016-17: 8.0" | 2017-18: 0.9"| 2018-19: 11.5"

2019-20: 11"

[1/9: Flakes, 1/12: Trace, 1/13: 0.25", 1/14: 8.5", 1/15: 2.0", 1/16: Flakes, 1/17: 0.25"]

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44 minutes ago, TigerWoodsLibido said:

An impressive 52/30 spread so a -9F departure. Beautiful crispy day with winds out of the north.

You finally got a cool max.  I knew it would happen eventually.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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2 minutes ago, Skagit Weather said:

 

Makes sense, but I still find the sudden drop at sunrise after such a long plateau surprising.

Anyways, 45/27 day here with a current temp of 30.

I never have figured out the sunrise thing for sure.  I've seen it everywhere I've lived.  Must be something to do with sun causing some kind of an atmospheric reaction while the rays are very weak.

Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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4 minutes ago, Skagit Weather said:

 

Makes sense, but I still find the sudden drop at sunrise after such a long plateau surprising.

Anyways, 45/27 day here with a current temp of 30.

You have had two days of insane minus departures.  You got the benefit of the Fraser outflow, but were sheltered from the winds so your mins dropped big time.  I still don't get why the NWS was so conservative with low temps in the North Interior and the East Puget Sound Lowlands for tonight.  Many places are already at forecast mins.

Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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9 minutes ago, Skagit Weather said:

 

Makes sense, but I still find the sudden drop at sunrise after such a long plateau surprising.

Anyways, 45/27 day here with a current temp of 30.

Yeah, it’s kinda peculiar sometimes.  It’s really prominent on the east side where during radiational cooling episodes in mid winter the temp will absolutely plummet between about 4pm and 8pm and then stagnate for several hours.

My preferences can beat up your preferences’ dad.

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2 minutes ago, dolt said:

32 now with a DP of 19. Dead calm with crystal clear skies. Should get interesting. Our record low for tomorrow will be shattered. (26 degrees)

By at least 2-3F if it stays calm.

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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: 15 (Most recent: Nov 22, 2020)
  • Days with sub-40F highs: 1 (Most recent: Nov 21)
  • 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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I just looked at the Buckley records which is right next to Enumclaw and according to those the coldest it has ever gotten before October 30th is 25.  That makes the current temp of 28 in Enumclaw truly noteworthy.  This is historic in its own right.

Currently 31 here.  Wow!

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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27 minutes ago, Deweydog said:

Twenty-sheaven.

Holy sheeeeit!

Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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Just now, DJ Droppin said:

Day 7

500h_anom.na.png

This is almost something that could get good.  It's so complex just about anything could happen.  That low near Hawaii is always something to watch.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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26 minutes ago, DJ Droppin said:

East wind has increased here. I may not dip to freezing here. It'll be close. C'MON!!!!

6z GFS in 3 hours 16 minutes

It should die.  The models show the easterly gradient collapsing down there very soon.

Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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1 minute ago, snow_wizard said:

This is almost something that could get good.  It's so complex just about anything could happen.  That low near Hawaii is always something to watch.

Yep, agreed.

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30 minutes ago, GHweatherChris said:

31 here, 3rd frost of the month so far, but the one earlier this month was more impressive.

Uhhh....It's not even midnight yet.

Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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26 at OLM.  This is unreal.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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If OLM can manage to hit 25 before 1AM (which is technically midnight) they will actually tie the record for the day WITH AN EVENING LOW!

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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29F in Springfield. First 20s of the season.

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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: 15 (Most recent: Nov 22, 2020)
  • Days with sub-40F highs: 1 (Most recent: Nov 21)
  • 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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6 minutes ago, DJ Droppin said:

Winds really picking up. Strongest gust since Sunday morning.

Puzzling.  I live in an east wind area and still have not totally figured out all of the nuances with it after 20 years.  I still think it will die there, but who knows.

Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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Looks like I made my goal of 30 by midnight.  That gives me a nice 48 / 30 for the day.  -10 departure from normal.  Some places are just downright insane tonight though.  Colder than I expected in a lot of cases.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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Enumclaw now down to 26.  Within 1 degree of an all time low for this early in the season according to the Buckley records.  SEA is now at 37 which puts it well within reach of their earliest freeze in decades.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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Temp here was 40 until midnight...now has dropped 4 degrees in the last hour to 36. 

Cold season stats  

Coldest low-30

Coldest high-42

Freezes-1

Monthly rainfall-6.63”

Cold season rainfall-9.80”

Snowfall-0.0”

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Lots of mid 20s to low 30s out there across the region. Some places getting down to 20 degrees isn’t out of the question. 

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Cold season stats  

Coldest low-30

Coldest high-42

Freezes-1

Monthly rainfall-6.63”

Cold season rainfall-9.80”

Snowfall-0.0”

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SEA down to 35 now.  What a night!

Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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9 minutes ago, Jesse said:

Wind has now died here, and the temp has dropped to 30.

This is insane.  29 here now.

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Death To Warm Anomalies!

 

Winter 2020-21 stats

 

Total Snowfall = 0.0"

Day with 1" or more snow depth = 0

Total Hail = 0.0"

Coldest Low = 25

Lows 32 or below = 8

Highs 32 or below = 0

Lows 20 or below = 0

Highs 40 or below = 0

 

 

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