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PNW January 2023 Observations and Discussion


Requiem

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Just now, Gradient Keeper said:

Day 3 (2-run trend)

trend-ecmwf_full-2023012500-f072.500h_anom.na(1).gif

Looks slightly farther west.

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2023 - 2024 Cold Season Stats

Total Snowfall - 0.75”

Max Snow Depth - 0.5”

Coldest High Temp - 21 (Jan 13)

Coldest Low Temp - 9 (Jan 13)

Number of Freezes - 48

Sub-40 highs - 12

Highs 32 or lower - 3

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Just now, Doinko said:

Very slightly colder than the 12z so far, but not much of a noticeable difference. Looks good so far

Definitely a notch WEST for Saturday... helps Portland.

 

ecmwf-deterministic-washington-total_snow_kuchera-5004400.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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Very cold ECMWF run.  -13 850s by Sunday morning for this area.  Brrrr!

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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'm still not sold one way or the other about snow this weekend.  I've seen too many times the models busted too dry going into these things.

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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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Just now, snow_wizard said:

I'm still not sold one way or the other about snow this weekend.  I've seen too many times the models busted too dry going into these things.

The slow trend toward snowier to the south on the ECMWF has me thinking the Seattle area might get in on this trend yet.

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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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Nice to see this on the euro. Fairly deep outflow, NW OR has the lowest 850s in the lowlands at that time. 850th.us_nw.png

I'm usually skeptical of any decent snow from an arctic front around here. Harder to pull off down here compared to further north in WA. The general idea is now looking about the same now on all models at least and I like what the Euro is doing. Hopefully we can get that trough a bit further west to pick up more juice. 

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10 minutes ago, snow_wizard said:

I'm still not sold one way or the other about snow this weekend.  I've seen too many times the models busted too dry going into these things.

Might be one of those RARE snow setups in the lowlands where details will be hard to pin down until almost verification.

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My preferences can beat up your preferences’ dad.

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3 minutes ago, TT-SEA said:

High temps Tuesday... cold hanging on better down south.    

ecmwf-deterministic-washington-t2m_f_max6-5209600.png

Yeah it’s more of a backdoor blast which will generally be a little colder and longer down here. An amped up version of last February.

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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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