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May 2021 Pacific Northwest Weather Obs


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April temperature departures... from south to north.

EUG  +2.2

SLE +2.9

PDX +2.9

OLM +0.9

SEA +2.7

BLI +2.3

 

OLM is definitely representative of the I-5 corridor.     The other 5 stations are the outliers.   🙄

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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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Looks like EUG has already exceeded their monthly total for April by 7 a.m. on May 1st.   

And already almost 20% of the normal rainfall for May.  

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10 minutes ago, TT-SEA said:

April temperature departures... from south to north.

EUG  +2.2

SLE +2.9

PDX +2.9

OLM +0.9

SEA +2.7

BLI +2.3

 

OLM is definitely representative of the I-5 corridor.     The other 5 stations are the outliers.   🙄

Totally uncalled for troll attempt. 

 

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Snowfall                                  Precip

2021-22: T"                         2021-22: 8.44" 

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! 

 

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Nectar from the GODS.

Snowfall                                  Precip

2021-22: T"                         2021-22: 8.44" 

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! 

 

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Just now, SilverFallsAndrew said:

Totally uncalled for troll attempt. 

 

Its not trolling... Jared says OLM is representative but its not always that way.

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

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Should also mention that HQM actually ended up with a 0.0 departure... perfectly normal.     That location only had 2 really warm days which was less than other stations.

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Cloudy and 48 for a low this morning. No rain here but nice to see Oregon finally got something decent. 

Monthly rainfall-0.57”

Cold season rainfall-15.72”

Sub 40 highs-0

Sub 32 highs-0

Sub 32 lows-0

Snowfall-0.0”

Coldest High-42

Coldest Low-34

 

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My friend at Crooked River Ranch in Central Oregon is having a nice band of rain come through. He's up to 0.57" since midnight, I think he was sitting at 1.29" of precip on the year before today. 

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Snowfall                                  Precip

2021-22: T"                         2021-22: 8.44" 

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! 

 

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20 minutes ago, SilverFallsAndrew said:

My friend at Crooked River Ranch in Central Oregon is having a nice band of rain come through. He's up to 0.57" since midnight, I think he was sitting at 1.29" of precip on the year before today. 

Visual of that nice little band of moisture :)

Ended up with 1.19 for April here

A0F40982-1522-40B6-A6DC-F3D9F1B44B93.jpeg

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Cloudy with a low of 48 here this morning. Up to 52 currently. Picked up 0.07” yesterday, just under 1/2” for the April total.

Looks like a lot of areas south of about Aurora did pretty well for rainfall last night. Might have saved some spots from recording the driest April on record.

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21 minutes ago, Jesse said:

Cloudy with a low of 48 here this morning. Up to 52 currently. Picked up 0.07” yesterday, just under 1/2” for the April total.

Looks like a lot of areas south of about Aurora did pretty well for rainfall last night. Might have saved some spots from recording the driest April on record.

I believe PDX and Eugene set their records for driest April. Good news is those records were set in 1956 and 1985 respectively. Not bad company! Weren’t those also Niña years? Noticed now the 3rd driest April at PDX was 1949.

Snowfall                                  Precip

2021-22: T"                         2021-22: 8.44" 

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! 

 

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Said band of moisture should reach here around 3-4pm likely giving Bozeman its first storms of the year. Models have been pretty bullish in dropping 0.5-1" of rainfall.

While April wasn't nearly as dry in Bozeman compared to you guys, (1.74" of precip for April) we are teetering on drought conditions as well as we enter the wet season and can use all the moisture that we can get.

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Cold Season 2021/22:

Total snowfall: 16.0"

Highest daily snowfall: 16.0"

Highest snow depth: 15.0"

Coldest high: 29.7º

Coldest low: 25.3º

Number of subzero days: 0

Personal Weather Station on Wunderground: 

https://www.wunderground.com/personal-weather-station/dashboard?ID=KMTBOZEM152#history

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11 minutes ago, SilverFallsAndrew said:

I believe PDX and Eugene set their records for driest April. Good news is those records were set in 1956 and 1985 respectively. Not bad company! Weren’t those also Niña years? Noticed now the 3rd driest April at PDX was 1949.

Worth mentioning April 1956 was about three degrees cooler on average than last month at PDX, as was 1949. 

Winter killing cold Octobers all of those years too ;(

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1 hour ago, MossMan said:

Nice to see areas to the south get some rain while my area remained dry overnight! 

Dry here, too. When I checked WeatherBell yesterday, neither the ECMWF nor the GFS were modeling any weekend precip for western Whatcom County, so I am not expecting any. I can't 100% recall, but your area may have had a stray shower or two modeled but was still pretty dry, too.

Neither model showed highs here getting even close to the 60˚F mark, either, so I am also not expecting that.

It's called clown range for a reason.

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4 hours ago, TT-SEA said:

April temperature departures... from south to north.

EUG  +2.2

SLE +2.9

PDX +2.9

OLM +0.9

SEA +2.7

BLI +2.3

 

OLM is definitely representative of the I-5 corridor.     The other 5 stations are the outliers.   🙄

If the other stations are in relatively urbanized areas..then yeah it technically is (or would be in the absence of such).

Station siting + urbanization is a disease on US climate records everywhere. Many places the same airmass that produced record breaking cold in 1880 would fall 10+ degrees short today.

The -15°F lows the DC area experienced in the 19th century would be closer to 0°F today under the same airmass.

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28 minutes ago, Timmy_Supercell said:

Maybe an analog for next winter? April 1949 was one of Portland's five driest. ;)

179907726_306411014179058_508953944118916541_n.jpg

2020 and 1949 were good analogs for the next winter....I think 56-57 was decent not sure about 46-47 though. 

Monthly rainfall-0.57”

Cold season rainfall-15.72”

Sub 40 highs-0

Sub 32 highs-0

Sub 32 lows-0

Snowfall-0.0”

Coldest High-42

Coldest Low-34

 

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4 hours ago, TT-SEA said:

Its not trolling... Jared says OLM is representative but its not always that way.

It’s definitely more representative than SEA though. :lol: Hard to argue otherwise with a straight face. 

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2 hours ago, SilverFallsAndrew said:

I believe PDX and Eugene set their records for driest April. Good news is those records were set in 1956 and 1985 respectively. Not bad company! Weren’t those also Niña years? Noticed now the 3rd driest April at PDX was 1949.

 

34 minutes ago, Timmy_Supercell said:

Maybe an analog for next winter? April 1949 was one of Portland's five driest. ;)

179907726_306411014179058_508953944118916541_n.jpg

No El Niño years on that list.

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Good news post: We will soon be entering a regime of IPWP-centered trades w/ IO convection, a critical component in almost every multiyear niña.

image.thumb.png.d94b1132ae835319f1c35d867fa8b29b.png

Also: note the MJO bifurcation/dissolution into a faster propagating CCKW while the lower frequency component slowly propagates eastward thru the IO. That will render unfiltered RMMs difficult if not useless for assessing true state of MJO.

image.thumb.png.de41aaef73091e116f170e98e61ada9d.png
 

Get into June with an E-IO/Maritime Continent low pass signal, and it suddenly becomes a much more productive pattern for -PNA/western troughing.

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13 minutes ago, Phil said:

If the other stations are in relatively urbanized areas..then yeah it technically is (or would be in the absence of such).

Station siting + urbanization is a disease on US climate records everywhere. Many places the same airmass that produced record breaking cold in 1880 would fall 10+ degrees short today.

The -15°F lows the DC area experienced in the 19th century would be closer to 0°F today under the same airmass.

15 degrees of UHI 🤨 

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Bad news post: Good lord above will someone shrink that d**n Hadley Cell already. Talk about slow and fat, if not morbidly obese. At this point it’s just enabling bad behavior.

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Just now, ShawniganLake said:

15 degrees of UHI 🤨 

For low temps it can easily exceed 10 degrees in downtown DC. On ideal radiational cooling nights in the autumn, the difference between DCA and Dulles has reached up to 22 degrees. :lol: 

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C’MON sun and warmth!! I’m really to get the water sports going!  Looks like I will need to run back to the lake sometime this weekend and mow if it stays dry since it’s growing like crazy now! 

E6D26D0A-EF0B-41DD-80B8-C790A0429894.jpeg

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Just now, MossMan said:

C’MON sun and warmth!! I’m really to get the water sports going!  Looks like I will need to run back to the lake sometime this weekend and mow if it stays dry since it’s growing like crazy now! 

E6D26D0A-EF0B-41DD-80B8-C790A0429894.jpeg

I wish there was a way to downvote this post 20 times.

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6 minutes ago, MossMan said:

C’MON sun and warmth!! I’m really to get the water sports going!  Looks like I will need to run back to the lake sometime this weekend and mow if it stays dry since it’s growing like crazy now! 

E6D26D0A-EF0B-41DD-80B8-C790A0429894.jpeg

As if you haven’t had a historic amount of dry/sunny weather already. 🙄

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17 minutes ago, Jesse said:

I wish there was a way to downvote this post 20 times.

Better conserve those weenie and downvotes...You will be seeing lots of these pictures over the summer!! 

A46AD840-E07F-4E09-8FF3-B3E7CA1DEC34.jpeg

5D767C91-5E92-4EE0-88A4-0677C9608E09.jpeg

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10 minutes ago, MossMan said:

Better conserve those weenie and downvotes...You will be seeing lots of these pictures over the summer!! 

A46AD840-E07F-4E09-8FF3-B3E7CA1DEC34.jpeg

5D767C91-5E92-4EE0-88A4-0677C9608E09.jpeg

I can’t possibly enjoy the outdoors unless there is some sort of regional drought in progress.

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Good Lord... another day of preference battles.   So stupid!  

I will always enjoy any sunny weather nature sends our way.   It could be in a wet period or in a dry period... does not matter to me.    

Even drier than normal weather for a couple months is still wet here.   I was out there working in mud just now and the grass is soggy.    Which is always the case at this time year.    And its still wetter than normal for the year and the water year.    And we have massive snowpack in the mountains so our water supply is doing great.   

So yeah.    Its a different world up here.    Just accept it.    It was nice to have a couple drier than normal months.    No one is telling Oregon people not to cheer for rain or worry about drought.   👍

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37 minutes ago, Jesse said:

I can’t possibly enjoy the outdoors unless there is some sort of regional drought in progress.

 

bag meme.gif

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1 minute ago, TT-SEA said:

Good Lord... another day of preference battles.   So stupid!  

I will always enjoy any sunny weather nature sends our way.   It could be in a wet period or in a dry period... does not matter to me.    

Even drier than normal weather for a couple months is still wet here.   I was out there working in mud just now and the grass is soggy.    Which is always the case at this time year.    And its still wetter than normal for the year and the water year.    And we have massive snowpack in the mountains so our water supply is doing great.   

So yeah.    Its a different world up here.    Just accept it.    No one is telling Oregon people not to cheer for rain or worry about drought.   👍

Content is still better than having to endure yours and Phils courtship for most of the past week.

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57 minutes ago, Phil said:

I’m certain half of this forum would be happier living in Phoenix or Death Valley.

Strawman building... Every. Single. Day.

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1 minute ago, GHweatherChris said:

Content is still better than having to endure yours and Phils courtship for most of the past week.

Yeah... that is pretty stupid as well.   No doubt.  

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1 hour ago, MossMan said:

Better conserve those weenie and downvotes...You will be seeing lots of these pictures over the summer!! 

A46AD840-E07F-4E09-8FF3-B3E7CA1DEC34.jpeg

5D767C91-5E92-4EE0-88A4-0677C9608E09.jpeg

I just have no clue why it bothers him if you want sun.   Can you make it sunny?   

He is pissed off at nature and global warming and expanding hadley cells and whatever else he is pissed off about today... but nature does not give a flying crap.   There used to be palm trees in the arctic.   And there used to be ice at the equator.    Nature does not care... and its always changing.   

If it decides to go the other way it gets much colder and wetter here... then we will move.   Life is very short.  

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WA snowpack update below.    

SEA is still +1.57 for the year... so this 'record dry' has not been enough to even offset the wet weather in January and February.  

Interestingly... the Cedar Lake station near me was about 9 inches above normal for the year at the end of February and then was 9 inches below normal for March and April.   And that puts that station perfectly normal for precip for the year.      

wa snowpack 2.png

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3 minutes ago, TT-SEA said:

WA snowpack update below.    

SEA is still +1.57 for the year... so this 'record dry' has not been enough to even offset the wet weather in January and February.  

Interestingly... the Cedar Lake station near me was about 9 inches above normal for the year at the end of February and then was 9 inches below normal for March and April.   And that puts that station perfectly normal for precip for the year.      

wa snowpack 2.png

Someone in the March thread posted horrible looking April precip maps, making it look like we are in a massive drought.  April east of the Cascades is normally dry.  Wenatchee, for example, averages 0.53" of rain, Yakima 0.57.  Spokane is a bit above an inch.

So even a rainless April is only about a half inch below normal for most of Eastern WA.  

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2 hours ago, Phil said:

Good news post: We will soon be entering a regime of IPWP-centered trades w/ IO convection, a critical component in almost every multiyear niña.

image.thumb.png.d94b1132ae835319f1c35d867fa8b29b.png

Also: note the MJO bifurcation/dissolution into a faster propagating CCKW while the lower frequency component slowly propagates eastward thru the IO. That will render unfiltered RMMs difficult if not useless for assessing true state of MJO.

image.thumb.png.de41aaef73091e116f170e98e61ada9d.png
 

Get into June with an E-IO/Maritime Continent low pass signal, and it suddenly becomes a much more productive pattern for -PNA/western troughing.

 

That is great news for the SW where the drought is very real.  👍

We definitely want to stick with the current regime where WA and BC continue to get the bulk of precipitation.    A Nino would give them some hope... but its all good news.   No hope for them.

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

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10 minutes ago, Brian_in_Leavenworth said:

Someone in the March thread posted horrible looking April precip maps, making it look like we are in a massive drought.  April east of the Cascades is normally dry.  Wenatchee, for example, averages 0.53" of rain, Yakima 0.57.  Spokane is a bit above an inch.

So even a rainless April is only about a half inch below normal for most of Eastern WA.  

Of course it’s a way different story west of the mountains.

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