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March 2021 Pacific Northwest Weather Obs


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6 minutes ago, iFred said:

It'd be cool if someone did a "Snow, cold, and wind events of March" post. I was looking around and there are a few posts about 1951, but they're a bit old and with a narrow focus. I could start taking these reference posts and put them together in a forum wiki for future reference.

That would be awesome! I’m especially curious as to if we have had any major events post March 10th...All of the memorable March’s of my lifetime have come during the first week or so. 

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I promise there are tears of joy under these glasses. @MR.SNOWMIZERis arguably the most gracious person on this board. 🙏🏻 I cannot thank you enough for this. Following the weather provides a type of p

Friends, This is OT so please forgive me for disrupting your weather discussions. I just want to provide another update since my last post few weeks back about my mother contracting covid. U

52F and beautiful in downtown Springfield. If someone needs a badass to install a weather station, then call up @SilverFallsAndrew because I can’t thank him enough for helping me with this. And @

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1 minute ago, MossMan said:

Seattle snow while I get skunked by Hr 170! 

A147291E-2F9D-42D4-9647-D093183CAD69.jpeg

18z looks good so far.

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Snowfall                                  Precip

2020-21: 12.0"                        2020-21: 52.02"

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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60 in North Bend now.    Well... technically 59.5 on the last observation but they round up when its .5 or higher.  👍

nb 3-1.png

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

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About 4 days ago... the ECMWF was showing lowland snow for today.

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

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14 minutes ago, TT-SEA said:

60 in North Bend now.    Well... technically 59.5 on the last observation but they round up when its .5 or higher.  👍

nb 3-1.png

60.3 in NB now... no rounding up necessary.  

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

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21 minutes ago, MossMan said:

That would be awesome! I’m especially curious as to if we have had any major events post March 10th...All of the memorable March’s of my lifetime have come during the first week or so. 

Mid March 2002 was pretty extensive. Skagit County northward had a legit snowstorm on the 20th with the Fraser River outflow. It was sunny and in the upper 50s here that day.

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23 minutes ago, TT-SEA said:

About 4 days ago... the ECMWF was showing lowland snow for today.

All the models were showing a deep trough, but the GFS was the lone hold out and never showed it. 

Snowfall                                  Precip

2020-21: 12.0"                        2020-21: 52.02"

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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18z moves the timing of the big time trough up a couple of days. 

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Snowfall                                  Precip

2020-21: 12.0"                        2020-21: 52.02"

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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50 minutes ago, TT-SEA said:

Last remnant of a once great snowbank that was as tall as me at its peak.     It was lucky enough to be piled in a shady spot prolonging it's life.

20210301_140421.jpg

Our last snow pile died yesterday. 😭 

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2 minutes ago, Phil said:

Our last snow pile died yesterday. 😭 

I was tempted to shovel that one into the road where it would die a quick death... but its held on so long that I couldn't do it.   Plus the neighbors would probably think I was crazier than they already think!  😄

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

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Horrible looking pattern for eastern half of the country during/after week-2. Not out of the question we reach 80°F this month. Way too early for that s**t.

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1 minute ago, TT-SEA said:

I was tempted to shovel that one into the road where it would die a quick death... but its held on so long that I couldn't do it.   Plus the neighbors would probably think I was crazier than they already think!  😄

You’ll anger the snow gods and get buried in 2ft of chowder on April fools day.

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4 minutes ago, SouthHillFrosty said:

The whole coast from Washington to northern Cali see's snow

 

 

gfs 18z hour 228 March 1st, 2021.png

Always good to see the timing move up. 

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Snowfall                                  Precip

2020-21: 12.0"                        2020-21: 52.02"

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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1 minute ago, Phil said:

How often does it snow in April out there? There’s potential for some super deep troughing next month.

It's not too uncommon around 500' and in the PSCZ areas. Hail and graupel is more common obviously, but those same cold-core setups can produce quick snow showers as well. I would say every 6-7 years on average, but it happened far more in the -PDO era.

Snow with offshore flow in April is nearly unheard of, although some places north of Seattle pulled it off April 18-20, 2008 with an airmass that probably would have been a major arctic outbreak had it been mid-winter.

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34 minutes ago, BLI snowman said:

Mid March 2002 was pretty extensive. Skagit County northward had a legit snowstorm on the 20th with the Fraser River outflow. It was sunny and in the upper 50s here that day.

I don't remember if it was the 20th or a bit earlier in the month, but the higher hills of Tacoma had several inches one day that month.

Low. Solar.

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7 minutes ago, Phil said:

How often does it snow in April out there? There’s potential for some super deep troughing next month.

Below 1000', almost never. Maybe like once every 30-40 years. In the foothills its not super uncommon, we had 1/2" of snow on April 1st last year. 

April 19/20, 2008 was probably the latest notable event on record here. Much of the Willamette Valley had a dusting and places above 1000' had 3-6". I think Everett and other places in the convergence zone had quite a bit of snow with up to a foot in high elevations of the convergence zone. 

PDX had significant snow in early April 1935 (Or 36). 

There may be other times it has happened, but those are the two I am aware of. 

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Snowfall                                  Precip

2020-21: 12.0"                        2020-21: 52.02"

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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1 minute ago, Front Ranger said:

I don't remember if it was the 20th or a bit earlier in the month, but the higher hills of Tacoma had several inches one day that month.

Yea it did. It only stuck to more of elevated surfaces if I remember correctly tho...

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Just now, Front Ranger said:

I don't remember if it was the 20th or a bit earlier in the month, but the higher hills of Tacoma had several inches one day that month.

There were two snowy periods that month. The 6th-8th produced a decent Fraser River event and some pockets of heavy snow. Bellingham had 4-5" and downtown Seattle got rocked by some nice thundersnow on the 7th with a few inches falling. Aberdeen also had a nice snowfall that day.

The 16-20th was the 2nd snowy period. There was widespread snow up there on the 16th, and down here we had a couple inches on the 17th with a quasi-arctic boundary that sagged down. Then there was overrunning snow on the 18th and an intense Fraser River blast on the 19th and 20th that hit Bellingham with about 10" of snow. Very sharp N-S gradient with that last event. SEA had a high of 37 with a trace of snow on the 20th while it was 57 and sunny at PDX.

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What's really sad is at Silver Falls, April 2011 was colder than January 2015 and 2018, and had the same mean temp as January 2020...

https://climate.usu.edu/mapServer/reports/e15daily.php?stn=USC00357809&year=2011&month=4&unit=EN&network=direct:ghcn&sidebar=0

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Snowfall                                  Precip

2020-21: 12.0"                        2020-21: 52.02"

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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17 minutes ago, SilverFallsAndrew said:

Below 1000', almost never. Maybe like once every 30-40 years. In the foothills its not super uncommon, we had 1/2" of snow on April 1st last year. 

April 19/20, 2008 was probably the latest notable event on record here. Much of the Willamette Valley had a dusting and places above 1000' had 3-6". I think Everett and other places in the convergence zone had quite a bit of snow with up to a foot in high elevations of the convergence zone. 

PDX had significant snow in early April 1935 (Or 36). 

There may be other times it has happened, but those are the two I am aware of. 

It's actually pretty common to see some quick snow in April in the lowlands. More common further north of course, but it's not a multi-decadal timescale event at all.

Bellingham had some quick sticking snow in April 2013 and 2011. There might have been a convergence zone that dropped something since then, but otherwise I think that was the last time lowland snow fell in April.

April 3, 1999 and April 19, 2008 are the only instances of measurable snow that I've personally seen here in Clark County during April. We also had some flakes in 2010.

This century, there was also a quick PSCZ event in early April 2007.

Up through the early 1980s, April snows used to be much more common. 1983 had some valley floor snow near you, 1982, 1981, and 1980 all had flakes fall in the lowlands. 1976 had a quick event midmonth (3" at BLI), early April 1975 had a monster trough with pockets of snow, 1972 had a nice event that gave SEA its latest measurable snow on the 16th-17th, 1970 had some flakes, 1968 had a big mid-month event in the PSCZ (9"+ in some areas), 1967 had some flakes, 1966 had some areas of snow. You get the idea.

The Portland area's latest measurable event actually came in 1961 after a totally snowless winter. There was a large deformation zone parked over us on the 22nd, with a quick 1-3" of snow that morning. PDX had a high of 43 that day while in Spokane it was 62. Funky pattern.

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Looks like the Cascades get buried again next week.

What I wouldn’t want to see happen is a big late season AR. With this much snowpack, there’s going to be major river flooding if it does.

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20 minutes ago, SilverFallsAndrew said:

Below 1000', almost never. Maybe like once every 30-40 years. In the foothills its not super uncommon, we had 1/2" of snow on April 1st last year. 

April 19/20, 2008 was probably the latest notable event on record here. Much of the Willamette Valley had a dusting and places above 1000' had 3-6". I think Everett and other places in the convergence zone had quite a bit of snow with up to a foot in high elevations of the convergence zone. 

PDX had significant snow in early April 1935 (Or 36). 

There may be other times it has happened, but those are the two I am aware of. 

IIRC, April 28th of either 08 or 09 had some amazing overnight snow showers. The radar had oranges and yellows over Bonney Lake and we got a quick 4 inches with a baby fist sized flakes. I'll never forget that night, save for the year it occured.

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4 minutes ago, TigerWoodsLibido said:

I promise there are tears of joy under these glasses. @MR.SNOWMIZERis arguably the most gracious person on this board. 🙏🏻 I cannot thank you enough for this. Following the weather provides a type of peace that helps my brain calm down. 
 

When @SilverFallsAndrewhas time, he is going to help set this up so it’s calibrated properly as It’s not safe for me to get up on the ladder anymore 😬.
 

To all of you on this board, thank you for keeping my spirits up. I hope we are all able to make one another’s days better with our shared love of atmospheric science. 🙏🏻
 

71FC4C61-6B7C-4895-8556-858600277BF5.jpeg
 

7328F409-9C7D-4D3A-BAA2-05A4DF563C61.jpeg

So what you're saying is we need to have a Eugene meetup.

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5 minutes ago, TigerWoodsLibido said:

I promise there are tears of joy under these glasses. @MR.SNOWMIZERis arguably the most gracious person on this board. 🙏🏻 I cannot thank you enough for this. Following the weather provides a type of peace that helps my brain calm down. 
 

When @SilverFallsAndrewhas time, he is going to help set this up so it’s calibrated properly as It’s not safe for me to get up on the ladder anymore 😬.
 

To all of you on this board, thank you for keeping my spirits up. I hope we are all able to make one another’s days better with our shared love of atmospheric science. 🙏🏻
 

71FC4C61-6B7C-4895-8556-858600277BF5.jpeg
 

7328F409-9C7D-4D3A-BAA2-05A4DF563C61.jpeg

That's awesome! Looks like a damned fine piece of equipment.

 

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1 minute ago, iFred said:

So what you're saying is we need to have a Eugene meetup.

I could host it. We would be packed like sardines in my tiny flat tho.

Springfield, Oregon cold season 20-21 Stats:

  • Coldest high: 38F (Nov 21)
  • Coldest low: 23F (Oct 26)
  • Days with below freezing temps: 49 (Most recent: Apr 12, 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"

 

Venmo

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

My Twitter @357jerseys4hope

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1 minute ago, TigerWoodsLibido said:

I could host it. We would be packed like sardines in my tiny flat tho.

On a serious note, maybe a summer doldrum meetup around a beach bonfire in Astoria would be pretty cool. I figure the Brazilian COVID will be making the rounds by then and normal things wont have opened up, but a beach should be plenty nice. 

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23 minutes ago, iFred said:

On a serious note, maybe a summer doldrum meetup around a beach bonfire in Astoria would be pretty cool. I figure the Brazilian COVID will be making the rounds by then and normal things wont have opened up, but a beach should be plenty nice. 

There are no beaches in Astoria.😢

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My preferences can beat up your preferences’ dad.

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30 minutes ago, iFred said:

IIRC, April 28th of either 08 or 09 had some amazing overnight snow showers. The radar had oranges and yellows over Bonney Lake and we got a quick 4 inches with a baby fist sized flakes. I'll never forget that night, save for the year it occured.

I remember we had about 6 inches one in April... and I think it was April 20th.    And it might have been 2008.  

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

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36 minutes ago, TigerWoodsLibido said:

I promise there are tears of joy under these glasses. @MR.SNOWMIZERis arguably the most gracious person on this board. 🙏🏻 I cannot thank you enough for this. Following the weather provides a type of peace that helps my brain calm down. 
 

When @SilverFallsAndrewhas time, he is going to help set this up so it’s calibrated properly as It’s not safe for me to get up on the ladder anymore 😬.
 

To all of you on this board, thank you for keeping my spirits up. I hope we are all able to make one another’s days better with our shared love of atmospheric science. 🙏🏻
 

71FC4C61-6B7C-4895-8556-858600277BF5.jpeg
 

7328F409-9C7D-4D3A-BAA2-05A4DF563C61.jpeg

Awesomeness!!!!!!!!! You are going to love it!! 

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23 minutes ago, TT-SEA said:

I remember we had about 6 inches one in April... and I think it was April 20th.    And it might have been 2008.  

I had about 4” of snow that April of 2008 I just cannot remember the exact day. 

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The parallel GFS has mostly done away with the W-Canada ridging, coming into line with the EPS.

Hopefully thats not a persistent bias w/ that model. 

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1 hour ago, TigerWoodsLibido said:

I promise there are tears of joy under these glasses. @MR.SNOWMIZERis arguably the most gracious person on this board. 🙏🏻 I cannot thank you enough for this. Following the weather provides a type of peace that helps my brain calm down. 
 

When @SilverFallsAndrewhas time, he is going to help set this up so it’s calibrated properly as It’s not safe for me to get up on the ladder anymore 😬.
 

To all of you on this board, thank you for keeping my spirits up. I hope we are all able to make one another’s days better with our shared love of atmospheric science. 🙏🏻
 

71FC4C61-6B7C-4895-8556-858600277BF5.jpeg
 

7328F409-9C7D-4D3A-BAA2-05A4DF563C61.jpeg

I'll hit you up tonight on FB, been pretty busy today at work, so I'll check my calendar and see when I can get down there. Probably pretty soon. :)

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Snowfall                                  Precip

2020-21: 12.0"                        2020-21: 52.02"

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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16 minutes ago, SilverFallsAndrew said:

I'll hit you up tonight on FB, been pretty busy today at work, so I'll check my calendar and see when I can get down there. Probably pretty soon. :)

Thanks man, this is so kind of you.

Springfield, Oregon cold season 20-21 Stats:

  • Coldest high: 38F (Nov 21)
  • Coldest low: 23F (Oct 26)
  • Days with below freezing temps: 49 (Most recent: Apr 12, 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"

 

Venmo

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

My Twitter @357jerseys4hope

24

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1 hour ago, TigerWoodsLibido said:

I promise there are tears of joy under these glasses. @MR.SNOWMIZERis arguably the most gracious person on this board. 🙏🏻 I cannot thank you enough for this. Following the weather provides a type of peace that helps my brain calm down. 
 

When @SilverFallsAndrewhas time, he is going to help set this up so it’s calibrated properly as It’s not safe for me to get up on the ladder anymore 😬.
 

To all of you on this board, thank you for keeping my spirits up. I hope we are all able to make one another’s days better with our shared love of atmospheric science. 🙏🏻
 

71FC4C61-6B7C-4895-8556-858600277BF5.jpeg
 

7328F409-9C7D-4D3A-BAA2-05A4DF563C61.jpeg

Nicely done Snowmizer and Andrew!  Let the data flow!

 

Meanwhile, What a Day :) 

58/35

 

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1 hour ago, BLI snowman said:

There were two snowy periods that month. The 6th-8th produced a decent Fraser River event and some pockets of heavy snow. Bellingham had 4-5" and downtown Seattle got rocked by some nice thundersnow on the 7th with a few inches falling. Aberdeen also had a nice snowfall that day.

The 16-20th was the 2nd snowy period. There was widespread snow up there on the 16th, and down here we had a couple inches on the 17th with a quasi-arctic boundary that sagged down. Then there was overrunning snow on the 18th and an intense Fraser River blast on the 19th and 20th that hit Bellingham with about 10" of snow. Very sharp N-S gradient with that last event. SEA had a high of 37 with a trace of snow on the 20th while it was 57 and sunny at PDX.

That was it. I remembered it was a Saturday. 🙂

Low. Solar.

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2 hours ago, MossMan said:

Awesomeness!!!!!!!!! You are going to love it!! 

That's what I have! Any way to get it to work during a blackout? Each time the power even so much as flickers causes the station to always reset itself which takes a few minutes.  :(  I thought the display had some kind of battery backup? 🤔 I honestly don't mind feeding it batteries if there's a way too that is.   BTW: We did get to 60F today and yesterday just briefly. Our sensor is on the shed so I am not sure if that exaggerates readings but it's the only place direct sunlight doesn't hit it past noon. 

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