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January 2021 weather observations for the PNW


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Some pics on the way up to my property.  The ones on the road are 1/4 mile down the road and the gate is the beginning of my 120 acre land.

I SEE FLAKES! WE DID IT!  I would like to thank every single poster and lurker on this board for working so hard this winter. Everyone gave it their all and it ended up with Tigard getting their

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7 minutes ago, Meatyorologist said:

oops, created another thread when I realized you had already beat me to it! :D

We are all excited to leave 2020 in the dust! 

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Happy New Years folks, hope this one is better than the last. Wishing every single person on here the happiest of years.

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"Let's mosey!"

 

--Cloud Strife

 

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

 

Top 5 Snow Events (post 2014):

 

(1. January 10th, 2017: 18.5 in.

(2. February 6th, 2014: 7.5 inches

(3. February 20th, 2018: 5.0 inches

(4. February 21st, 2018: 4.0 inches

(5. December 14th, 2016: 3.5 inches

 

Honourable Mentions: December 7th, 2018, February 9th, 2019.

 

Total since joining the Weather Forums: 3"

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Happy 2021 everyone!

Foggy with fireworks, that's gotta be a first for me.

Weather Data for Klamath Falls, OR
-------------------------------------------------------------------
Snowfall (with % of seasonal average)

2010-2011 - 60.70" (168%)
2011-2012 - 49.00" (136%)
2012-2013 - 25.10" (70%)
2013-2014 - 9.05" (25%)
2014-2015 - 2.90" (8%)
2015-2016 - 54.45" (151%)
2016-2017 - 63.00" (175%)
2017-2018 - 18.10" (50%)
2018-2019 - 52.30" (145%)
2019-2020 - 37.00" (103%)
 
2020-2021 - 15.10"
Nov '20 - 00.20" (5%)
Dec '20 - 04.40" (44%)
Jan '21 - 03.50" (29%)
Feb '21 - 07.00" (78%)
 
2021 Thunderstorms
--/--,
 
Biggest Snowstorm - 18.4" (Jan 3-4 2017 - 26 hours)
Top 5 Daily Snows: 12.40" (01/03/2017), 8.20" (11/23/2010), 7.50" (12/13/2015), 6.60" (02/07/2017), 6.20" (03/10/2019)
Honorable Mention: 6.00" (03/20/2012), 6.00" (02/28/2012), 6.00" (01/16/2020), 5.70" (12/14/2016), 5.50" (01/18/2012)
Max Depths: 21.00" (01/07/2017), 18.00" (12/24/2015), 13.00" (01/16/2020), 11.00" (11/23/2010), 9.50" (02/27/2019), 9.00" (02/28/2012)
 
T'storm Days: 10 (2020), 14 (2019), 16 (2018), 12 (2017), 13 (2016), 20 (2015), 21 (2014), 16 (2013), 2 (2012), 12 (2011)
1980-2015 Avg = 12
Severe T'storms: 6 (08/05/2020), (08/10/2019), (08/08/2017), (07/24/2017), (01/19/2016), (08/05/2012) 
"Almost" Severe: 2 (08/10/2017), (05/04/2016)
Vicinity Severe T'storms (close enough to hear, with official severe reports)
(06/26/2017), (08/05/2016), (07/09/2015), (07/05/2015), (06/09/2015), (08/05/2014), (08/04/2014), (08/22/2013), (08/12/2013), (09/12/2011), (09/04/2011)

 

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20 minutes ago, hawkstwelve said:

Honestly, could be better. A little slower with the retrogression signal than the 12z. 

ecmwf-ensemble-avg-namer-z500_anom-1609459200-1610323200-1610755200-80.gif

That being said I've watched the majority of Ventrice's very informative video and if the composites he's based his predictions off of are any sign, we shouldn't start to see a flip in the models for at least a few more days. 7 days after the SSW is when the -EPO should just be starting to emerge. 14 days after and an expansive West Canadian cold pool could develop. 

Awesome video by the way. Thanks to whoever shared that. Learned quite a bit about SSWs and their potential impacts, let alone the patterns that are precursors to them... the much-lamented Aleutian vortex being one for Siberian-based SSWs.

Seems counter intuitive that we always root against a pattern that is a conduit for a favorable SSW. But, alas, we must not relent - bad Aleutian low!!!

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Weather station: https://maplevalleywx.com

 

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7 minutes ago, hawkstwelve said:

That being said I've watched the majority of Ventrice's very informative video and if the composites he's based his predictions off of are any sign, we shouldn't start to see a flip in the models for at least a few more days. 7 days after the SSW is when the -EPO should just be starting to emerge. 14 days after and an expansive West Canadian cold pool could develop. 

Awesome video by the way. Thanks to whoever shared that. Learned quite a bit about SSWs and their potential impacts, let alone the patterns that are precursors to them... the much-lamented Aleutian vortex being one for Siberian-based SSWs.

Seems counter intuitive that we always root against a pattern that is a conduit for a favorable SSW. But, alas, we must not relent - bad Aleutian low!!!

Thanks. I too watched his videos. I agree it's not likely we're going to see large scale pattern changes showing up on the models for a bit longer. It's coming.

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Here's to a stormy year for everyone!

 

ezgif-1-01edcf016867.gif

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Weather Data for Klamath Falls, OR
-------------------------------------------------------------------
Snowfall (with % of seasonal average)

2010-2011 - 60.70" (168%)
2011-2012 - 49.00" (136%)
2012-2013 - 25.10" (70%)
2013-2014 - 9.05" (25%)
2014-2015 - 2.90" (8%)
2015-2016 - 54.45" (151%)
2016-2017 - 63.00" (175%)
2017-2018 - 18.10" (50%)
2018-2019 - 52.30" (145%)
2019-2020 - 37.00" (103%)
 
2020-2021 - 15.10"
Nov '20 - 00.20" (5%)
Dec '20 - 04.40" (44%)
Jan '21 - 03.50" (29%)
Feb '21 - 07.00" (78%)
 
2021 Thunderstorms
--/--,
 
Biggest Snowstorm - 18.4" (Jan 3-4 2017 - 26 hours)
Top 5 Daily Snows: 12.40" (01/03/2017), 8.20" (11/23/2010), 7.50" (12/13/2015), 6.60" (02/07/2017), 6.20" (03/10/2019)
Honorable Mention: 6.00" (03/20/2012), 6.00" (02/28/2012), 6.00" (01/16/2020), 5.70" (12/14/2016), 5.50" (01/18/2012)
Max Depths: 21.00" (01/07/2017), 18.00" (12/24/2015), 13.00" (01/16/2020), 11.00" (11/23/2010), 9.50" (02/27/2019), 9.00" (02/28/2012)
 
T'storm Days: 10 (2020), 14 (2019), 16 (2018), 12 (2017), 13 (2016), 20 (2015), 21 (2014), 16 (2013), 2 (2012), 12 (2011)
1980-2015 Avg = 12
Severe T'storms: 6 (08/05/2020), (08/10/2019), (08/08/2017), (07/24/2017), (01/19/2016), (08/05/2012) 
"Almost" Severe: 2 (08/10/2017), (05/04/2016)
Vicinity Severe T'storms (close enough to hear, with official severe reports)
(06/26/2017), (08/05/2016), (07/09/2015), (07/05/2015), (06/09/2015), (08/05/2014), (08/04/2014), (08/22/2013), (08/12/2013), (09/12/2011), (09/04/2011)

 

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1 minute ago, DJ Droppin said:

This run is mega wet, but lacking with Cascade snow especially in Oregon.

Gained a bit more after Day 9, and we all know how accurate the GFS that far out.

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12z GFS continuing to show some snow Sunday morning for the EPSL.

Not sure I buy it though. Surface temps are in the upper 30s, 925s are either 1c or 0c, and 850s are only -3/-4c. Unless precip rates are extremely heavy as that front moves through Saturday night, I don't see much of anything falling.

gfs-deterministic-seattle-total_snow_10to1-9686000.png

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Weather station: https://maplevalleywx.com

 

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11 minutes ago, Timmy said:

The last 3 gfs runs warmed a lot for this weekend, looks like basically rain in the Oregon  cascades through Monday.

January 2006 

Snowfall                                  Precip

2020-21: 9.8"                        2020-21: 40.47"

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 is really amazing how much warmer the models have trended. All the trough energy splits through next week, and the trough axis never digs over the PNW. For Oregon this means less precip, mostly mountain rain, and very warm valley temps. I could see SLE pulling off another impressive 50+ streak. At this point it appears they will easily average 50+ for highs through the first half of the month.

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Snowfall                                  Precip

2020-21: 9.8"                        2020-21: 40.47"

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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