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March 2020 Weather Discussion for the PNW


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An impressive 38/34 spread today here. Haven’t seen a sub 40 high temp this late in the year...we had a 38 degree high temp last March too but that was on 3/8. Also picked up 0.29” today and now we’re at 1.07” for March.

Tacoma WA elevation 300’

Monthly rainfall-3.56”

Warm season rainfall-11.14”

Max temp-88

+80 highs-2

+85 highs-2

+90 highs-0

 

 

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Euro has been flip flopping a lot. 00z had an inch, 12z had 3-5 inches and now back down to small amounts.

That's also true. Honestly I'm expecting nothing more than non sticking flakes at home in Ridgefield. But I'll be window licking tonight anyway.

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Euro has been flip flopping a lot. 00z had an inch, 12z had 3-5 inches and now back down to small amounts. 

 

 

1 degree temperature difference would make a big difference in snow totals in this situation... probably why its been inconsistent with that particularly parameter (total snow).

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

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Euro has been flip flopping a lot. 00z had an inch, 12z had 3-5 inches and now back down to small amounts. 

 

18z has also not been in tune with standard EURO runs as well, which is weird.

"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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High of only 42 at PDX today. Their coldest day this late in the season since the ridiculously late high of 39 on 3/21/12. Also just one degree off the record MIN/MAX for the date, set in 1955.

 

High of only 40 here, last night at midnight then briefly again this afternoon. Down to 38 currently with a light East breeze.

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1 degree temperature difference would make a big difference in snow totals in this situation... probably why its been inconsistent with that particularly parameter (total snow).

 

It's actually more about the precip. Models keep hinting that the NE side of this low will have some kind of enhancement/deformation with good precip rates overnight into the morning. The Euro can't seem to make up its mind on this. The GFS has also gone back and forth between giving 0.3 to 1.0 in of precip but has generally been on the wetter side. 

 

00z last night

qpf_acc.us_nw.png

 

12z today

qpf_acc.us_nw.png

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High of only 42 at PDX today. Their coldest day this late in the season since the ridiculously late high of 39 on 3/21/12. Also just one degree off the record MIN/MAX for the date, set in 1955.

High of only 40 here, last night at midnight then briefly again this afternoon. Down to 38 currently with a light East breeze.

Nws SEA forecast temps were low to mid 40s but most places actually stayed in the mid to upper 30s today.
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Tacoma WA elevation 300’

Monthly rainfall-3.56”

Warm season rainfall-11.14”

Max temp-88

+80 highs-2

+85 highs-2

+90 highs-0

 

 

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It's actually more about the precip. Models keep hinting that the NE side of this low will have some kind of enhancement/deformation with good precip rates overnight into the morning. The Euro can't seem to make up its mind on this. The GFS has also gone back and forth between giving 0.3 to 1.0 in of precip but has generally been on the wetter side.

 

00z last night

qpf_acc.us_nw.png

 

12z today

qpf_acc.us_nw.png

You know what, most models show an inch or more. I’m confident I’ll see at least a dusting.

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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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It's actually more about the precip. Models keep hinting that the NE side of this low will have some kind of enhancement/deformation with good precip rates overnight into the morning. The Euro can't seem to make up its mind on this. The GFS has also gone back and forth between giving 0.3 to 1.0 in of precip but has generally been on the wetter side. 

 

00z last night

 

 

Right, temperatures are less of an issue IMO since the timing of whatever band forms looks to coincide with the coldest part of the day. 31-32 should be pretty doable under any steady precip. It's the almost convective elements to this that are going to be a challenge for the models to pick up and the placement of that band is going to waffle. 

 

Also on that note, always a bit more encouraging to see temps stay on the coolish side of projections today.

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You know what, most models show an inch or more. I’m confident I’ll see at least a dusting.

I think an inch as a worst case for you is probably a good bet. 

 

The setup tonight is clearly more dynamic than normal and has the potential for fairly juicy amounts of precip if things line up well. It actually does have a 1/10/17 vibe in that regard.

 

Fingers crossed for this thing overdelivering. If all else fails, it will be snow in the air for the lowest elevations and that is still way better than our usual weather. 

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High of only 42 at PDX today. Their coldest day this late in the season since the ridiculously late high of 39 on 3/21/12. Also just one degree off the record MIN/MAX for the date, set in 1955.

 

High of only 40 here, last night at midnight then briefly again this afternoon. Down to 38 currently with a light East breeze.

 

That was also from a somewhat similar setup that dropped 1-2" of snow across the metro area on the morning of the 14th.

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Right, temperatures are less of an issue IMO since the timing of whatever band forms looks to coincide with the coldest part of the day. 31-32 should be pretty doable under any steady precip. It's the almost convective elements to this that are going to be a challenge for the models to pick up and the placement of that band is going to waffle. 

 

Also on that note, always a bit more encouraging to see temps stay on the coolish side of projections today.

 

Makes me wonder if the mesoscale models would have a better handle for things like that. I remember the RGEM and 3km NAM did much better for the 1/10/17 event than the GFS/Euro but wasn't ever too sure if that was just a wrong clock being right twice a day sort of deal. 

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High of only 42 at PDX today. Their coldest day this late in the season since the ridiculously late high of 39 on 3/21/12. Also just one degree off the record MIN/MAX for the date, set in 1955.

 

High of only 40 here, last night at midnight then briefly again this afternoon. Down to 38 currently with a light East breeze.

They might have not hit their high yet.

My preferences can beat up your preferences’ dad.

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Makes me wonder if the mesoscale models would have a better handle for things like that. I remember the RGEM and 3km NAM did much better for the 1/10/17 event than the GFS/Euro but wasn't ever too sure if that was just a wrong clock being right twice a day sort of deal. 

 

I wouldn't be surprised if they have a better handle on it now that we're within 24 hours. HRRR generally struggles with precip type but also looks pretty favorable for some steady stuff from 3am-9am. 

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Currently dribbles and 36 degrees. Had a high of 39.

.03” on the day, 3.00” on the month, and 21.20” on the year.

Elevation 580’ Location a few miles east of I-5 on the Snohomish Co side of the Snohomish/Skagit border. I love snow/cold AND sun/warmth! 

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38/28 with 1.5" of snow and 0.21" of precip so far today. 

Snowfall                                  Precip

2022-23: 95.0"                      2022-23: 17.39"

2021-22: 52.6"                    2021-22: 91.46" 

2020-21: 12.0"                    2020-21: 71.59"

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! 
Fighting the good fight against weather evil.

 

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I had a high below 40 and sticking snow this morning.  Pretty hard to complain about that this late in the season.  The WRF shows some snow here later tonight also.  No reason to believe the ECMWF over the WRF after the ECMWF horrible perfomance last night.  It showed less than 0.10" of water here and we ended up with 0.30".

 

Stats for so far today … 39 / 34 with 0.2" of snow.

 

Too bad SEA was so "warm" at midnight.  Their daytime high was easily record low max.

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Death To Warm Anomalies!

 

Winter 2023-24 stats

 

Total Snowfall = 1.0"

Day with 1" or more snow depth = 1

Total Hail = 0.0

Total Ice = 0.2

Coldest Low = 13

Lows 32 or below = 45

Highs 32 or below = 3

Lows 20 or below = 3

Highs 40 or below = 9

 

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I had a high below 40 and sticking snow this morning.  Pretty hard to complain about that this late in the season.  The WRF shows some snow here later tonight also.  No reason to believe the ECMWF over the WRF after the ECMWF horrible perfomance last night.  It showed less than 0.10" of water here and we ended up with 0.30".

 

Stats for so far today … 39 / 34 with 0.2" of snow.

 

Too bad SEA was so "warm" at midnight.  Their daytime high was easily record low max.

Jim! It is good to see you. Yeah the Euro has been less than consistent.

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I had a high below 40 and sticking snow this morning.  Pretty hard to complain about that this late in the season.  The WRF shows some snow here later tonight also.  No reason to believe the ECMWF over the WRF after the ECMWF horrible perfomance last night.  It showed less than 0.10" of water here and we ended up with 0.30".

 

Stats for so far today … 39 / 34 with 0.2" of snow.

 

Too bad SEA was so "warm" at midnight.  Their daytime high was easily record low max.

 

Euro underestimating precip would be big for us here.

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Euro underestimating precip would be big for us here.

 

It has had problems this winter during the cold snaps.  It has both shot way too high and way too low on various events.

Death To Warm Anomalies!

 

Winter 2023-24 stats

 

Total Snowfall = 1.0"

Day with 1" or more snow depth = 1

Total Hail = 0.0

Total Ice = 0.2

Coldest Low = 13

Lows 32 or below = 45

Highs 32 or below = 3

Lows 20 or below = 3

Highs 40 or below = 9

 

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Pretty wild swing in Central Oregon. Highs well into the 50s now snowing. 

 

41/33 so far today at SLE. Just a bit above the record min/max of 39 from 1906, good for a -10 departure. 

Snowfall                                  Precip

2022-23: 95.0"                      2022-23: 17.39"

2021-22: 52.6"                    2021-22: 91.46" 

2020-21: 12.0"                    2020-21: 71.59"

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! 
Fighting the good fight against weather evil.

 

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New 00z 3km NAM is much drier tonight. Regular 12km is much wetter. Doesn't sound like the models are really gonna come to a clear consensus on precip. Will just have to wait and see, only a few more hours anyway. 

 

sn10_acc.us_nw.png

 

Still shows 4-6" here. Seems reasonable. 

Snowfall                                  Precip

2022-23: 95.0"                      2022-23: 17.39"

2021-22: 52.6"                    2021-22: 91.46" 

2020-21: 12.0"                    2020-21: 71.59"

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! 
Fighting the good fight against weather evil.

 

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25 with snow at Spokane. Dang. 

Snowfall                                  Precip

2022-23: 95.0"                      2022-23: 17.39"

2021-22: 52.6"                    2021-22: 91.46" 

2020-21: 12.0"                    2020-21: 71.59"

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! 
Fighting the good fight against weather evil.

 

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10 minutes ago...

 

URGENT - WINTER WEATHER MESSAGE
National Weather Service Portland OR
809 PM PDT Fri Mar 13 2020

ORZ006-015-WAZ039-045-141115-
/O.EXB.KPQR.WW.Y.0018.200314T1000Z-200314T1900Z/
Greater Portland Metro Area-Western Columbia River Gorge-
Greater Vancouver Area-
Including the cities of Hillsboro, Portland, Wilsonville,
Oregon City, Gresham, Troutdale, Corbett, Rooster Rock,
Multnomah Falls, Cascade Locks, Vancouver, Battle Ground,
Ridgefield, Washougal, Yacolt, Amboy, North Bonneville,
and Stevenson
809 PM PDT Fri Mar 13 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO NOON PDT
SATURDAY...

* WHAT...Snow expected. Total snow accumulations of up to two
inches.

* WHERE...In Washington, Greater Vancouver Area and Western
Columbia River Gorge. In Oregon, Greater Portland Metro Area
and Western Columbia River Gorge.

* WHEN...From 3 AM to noon PDT Saturday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Expect the heaviest accumulations at
elevations above 500 feet, with lighter accumulations on the
valley floor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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And he’s usually right.

 

Well yeah, rooting against snow means you always have climo on your side around here. He has a reputation to protect because he isn't a random poster on a forum.I'm not saying I'd do it any different if I were in his shoes. Just pointing out the numbers he posted are entirely made up.

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10 minutes ago...

 

URGENT - WINTER WEATHER MESSAGE

National Weather Service Portland OR

809 PM PDT Fri Mar 13 2020

 

ORZ006-015-WAZ039-045-141115-

/O.EXB.KPQR.WW.Y.0018.200314T1000Z-200314T1900Z/

Greater Portland Metro Area-Western Columbia River Gorge-

Greater Vancouver Area-

Including the cities of Hillsboro, Portland, Wilsonville,

Oregon City, Gresham, Troutdale, Corbett, Rooster Rock,

Multnomah Falls, Cascade Locks, Vancouver, Battle Ground,

Ridgefield, Washougal, Yacolt, Amboy, North Bonneville,

and Stevenson

809 PM PDT Fri Mar 13 2020

 

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO NOON PDT

SATURDAY...

 

* WHAT...Snow expected. Total snow accumulations of up to two

inches.

 

* WHERE...In Washington, Greater Vancouver Area and Western

Columbia River Gorge. In Oregon, Greater Portland Metro Area

and Western Columbia River Gorge.

 

* WHEN...From 3 AM to noon PDT Saturday.

 

* IMPACTS...Plan on slippery road conditions.

 

* ADDITIONAL DETAILS...Expect the heaviest accumulations at

elevations above 500 feet, with lighter accumulations on the

valley floor.

 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

 

Slow down and use caution while traveling.

 

Its over. We were so close. 

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