PNW April 2023 Weather Discussion

[LowerGarfield]

37 minutes ago, SilverFallsAndrew said:

SLE is 13.61 since January 1st, less than SAC, however, SLE is at 28.82" since October 1st, SAC is 25.84"

What about since July 1st? I'm still a bit bummed as an ex-Californian that they changed the water year.

[LowerGarfield]

We might get some convection here tonight but I really want rain esp since tomorrow will be breezy. Looks like the high will be cooler than expected here. NWS is thinking maybe 70 for my location and Lewiston less than 80.

[SilverFallsAndrew]

9 minutes ago, LowerGarfield said:

What about since July 1st? I'm still a bit bummed as an ex-Californian that they changed the water year.

I don't think there was much rain at either locations between July 1-September 30th last year. 

 

SLE had 0.44" in that period last year. 

SAC 0.28"

Edited April 10, 2023 by SilverFallsAndrew

[SilverFallsAndrew]

This is kind of insane. March was the 3rd coldest ever here in Oregon. Only 1917 and 1897 were colder. Statewide anomaly of -4.8F for the month. 

The cold was definitely focused over Oregon. Washington ran a -1.8F anomaly, good for 32nd coldest March all time. 

Nationally March was a little below normal. 

It was the 5th coldest March in CA, NV, and ND. 

https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/35/tavg/1/3/1895-2023

[Meatyorologist]

10 hours ago, Slushy Inch said:

What day? 

Garfield won't be too happy.

[Cascadia_Wx]

2 minutes ago, SilverFallsAndrew said:

This is kind of insane. March was the 3rd coldest ever here in Oregon. Only 1917 and 1897 were colder. Statewide anomaly of -4.8F for the month. 

The cold was definitely focused over Oregon. Washington ran a -1.8F anomaly, good for 32nd coldest March all time. 

Nationally March was a little below normal. 

It was the 5th coldest March in CA, NV, and ND. 

https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/35/tavg/1/3/1895-2023

You are just a stat DEMON this morning Andrew. Loving it!!

[SilverFallsAndrew]

1 minute ago, Cascadia_Wx said:

You are just a stat DEMON this morning Andrew. Loving it!!

We have had 3 top 10 cold months statewide in the past year:

April 2022: 10th

November 2023: 7th

March 2023: 3rd. 

Also 17th coldest November-March since 1895. Tied with 92-93 for the coldest such period since 1984-85. 

 

[SilverFallsAndrew]

Of course on the converse.

June-October was the warmest such 5 month period since 1895, and it wasn't even close, even with a relatively pedestrian June. 

July: 4th warmest (2021 was 1.8F warmer and the warmest ever.

August: 1st all-time by about 1F

September: Tied with 2020 for warmest all time. 

October: 2nd warmest all-time statewide. 

[Port Angeles Foothiller]

[Cascadia_Wx]

1 minute ago, Port Angeles Foothiller said:

Fortunately the 12z runs are advertising many blessing to come.

[Cascadia_Wx]

Pattern gets pretty crazy on the 12z Euro days 6-10. That’s a huge trough. 

[Cascadia_Wx]

3 minutes ago, SilverFallsAndrew said:

Of course on the converse.

June-October was the warmest such 5 month period since 1895, and it wasn't even close, even with a relatively pedestrian June. 

July: 4th warmest (2021 was 1.8F warmer and the warmest ever.

August: 1st all-time by about 1F

September: Tied with 2020 for warmest all time. 

October: 2nd warmest all-time statewide. 

The sustained cool has been nice, but in no way offsets the warmth before it, despite Jim’s fever dreams.

[SilverFallsAndrew]

Interestingly looking at precip over the years, we see a pretty noticeable upward trend in the spring months of March-May, and a declining trend in the fall and winter months, summer precip across Oregon has remained relatively stable since 1895, as it there is not generally much of it. Annual precip has been pretty stable overall, though there has not been an extremely wet year since 2012. 

[Phishy Wx]

44 minutes ago, Cascadia_Wx said:

Such nice trends on the long range 12z GEFS. In my book whenever we can extend a cool and wet pattern into the late April window and beyond(???) it’s a huge win these days. There is a definite seasonal shift that can happen after mid April in some recent years 

whatever delays and/or diminishes smoke season I'm all for

[MossMan]

One year ago today. 

[SilverFallsAndrew]

If you look at seasonal warming since the late 1800s, spring has warmed the least in Oregon (About 2F), winter and summer have warmed about 1F more over that period, with fall in between. 

January has clearly warmed the most of any month. April has seen almost negligible warming over the past Century. 

[Slushy Inch]

Just your typical April low pressure.

[Omegaraptor]

28 minutes ago, Port Angeles Foothiller said:

Randy's boating spot is in the blue!

[Front Ranger]

1 hour ago, SilverFallsAndrew said:

Well on the other hand here is June 15-September 13th...

Rank, Value, EndingDate, MissingDays
1, 0.09, 2006-09-13, 0
2, 0.12, 2018-09-13, 0
3, 0.13, 2021-09-13, 0
4, 0.24, 1910-09-13, 0
5, 0.32, 2017-09-13, 0
6, 0.35, 1988-09-13, 0
7, 0.41, 1902-09-13, 62
8, 0.43, 2020-09-13, 0
9, 0.49, 2022-09-13, 0

No doubt. But that's traditional PNW summer, which has always been quite dry in Salem. Whereas Sacramento often starts really drying out in April. As recently as 2021 they nearly had a rainless April.

So while summer has definitely gone from very dry to extremely dry lately in the PNW, any trend towards a longer dry season has been much less pronounced.

[Front Ranger]

1 hour ago, LowerGarfield said:

@Front Ranger how does SLE compare with Sacramento for this season. I imagine Sac is still ahead?

Sacramento is still about 1" ahead of SLE in 2023.

[Anti Marine Layer]

 

[MossMan]

23 minutes ago, Omegaraptor said:

Randy's boating spot is in the blue!

The hills are going to be quite green later this spring! 

[Omegaraptor]

1 minute ago, MossMan said:

The hills are going to be quite green later this spring! 

Beautiful pic! Need to get out to the eastside more in the spring.

[Front Ranger]

1 hour ago, SilverFallsAndrew said:

We have had 3 top 10 cold months statewide in the past year:

April 2022: 10th

November 2023: 7th

March 2023: 3rd. 

Also 17th coldest November-March since 1895. Tied with 92-93 for the coldest such period since 1984-85. 

 

 

1 hour ago, SilverFallsAndrew said:

Of course on the converse.

June-October was the warmest such 5 month period since 1895, and it wasn't even close, even with a relatively pedestrian June. 

July: 4th warmest (2021 was 1.8F warmer and the warmest ever.

August: 1st all-time by about 1F

September: Tied with 2020 for warmest all time. 

October: 2nd warmest all-time statewide. 

And it's all equaled out to this for the past 12 months.

[High Desert Mat?]

1 hour ago, SilverFallsAndrew said:

This is kind of insane. March was the 3rd coldest ever here in Oregon. Only 1917 and 1897 were colder. Statewide anomaly of -4.8F for the month. 

The cold was definitely focused over Oregon. Washington ran a -1.8F anomaly, good for 32nd coldest March all time. 

Nationally March was a little below normal. 

It was the 5th coldest March in CA, NV, and ND. 

https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/35/tavg/1/3/1895-2023

https://www.alaskasnewssource.com/2023/04/08/get-ready-snowy-easter/ 

Seems we are not alone in the late cold pattern. 

[TigerWoodsLibido]

Nice day out there. 48F with some rain.

[Phil]

Omicron finally got me.  

[High Desert Mat?]

31 minutes ago, Phil said:

Omicron finally got me.  

Take some DayQuil. It helped me out a lot and the symptoms were next to nil. 

[LowerGarfield]

It was about seventy when I checked an hour ago. Quite pleasant. Light breeze and sunny. Tonight likely will have some stormy elements but enjoying the open windows whilst I work.

[BLI snowman]

8 minutes ago, LowerGarfield said:

It was about seventy when I checked an hour ago. Quite pleasant. Light breeze and sunny. Tonight likely will have some stormy elements but enjoying the open windows whilst I work.

75 in Lewiston right now. Toasty in that warm sector!

[Phil]

5 minutes ago, High Desert Mat? said:

Take some DayQuil. It helped me out a lot and the symptoms were next to nil. 

Good to know, thanks! I took some advil and electrolyte capsules and am feeling much better (at the moment).

Not really like a cold, just my entire body hurts like hell. Every bump on road home had me whining like a b*tch.  

[MossMan]

21 minutes ago, LowerGarfield said:

It was about seventy when I checked an hour ago. Quite pleasant. Light breeze and sunny. Tonight likely will have some stormy elements but enjoying the open windows whilst I work.

44 here! 

[FroYoBro]

What a glorious spring day in the PNW! Rain has been falling pretty much all day here. The environment is teeming with life! Local creeks and streams are all running loudly with lots of water. The plants are green and thriving. Tim isn't posting. God is really blessing us with some beautiful things today! 

Edited April 10, 2023 by FroYoBro

[Ken in Wood Village]

Wow! At least ping pong ball size hail falling in Watonga right now! 

This is from Val Castor in Oklahoma. I follow him on Facebook. This is crazy hail. This would do a lot of damage in our area. 

 

[Omegaraptor]

Wouldn’t be surprised if we wait until May for our first 70 this year.

[Cascadia_Wx]

3 minutes ago, Omegaraptor said:

Wouldn’t be surprised if we wait until May for our first 70 this year.

It’s April 10th. Waiting until May would mean record late territory. Doesn’t take much for us to hit it by late April, even a short break in troughing with some brief offshore flow would do it.

[Cascadia_Wx]

37 minutes ago, BLI snowman said:

75 in Lewiston right now. Toasty in that warm sector!

So that’s where our Easter Sunday/Monday temps as predicted 7-10 days ago ended up. Only 300 miles off!

[SilverFallsAndrew]

2 minutes ago, Cascadia_Wx said:

It’s April 10th. Waiting until May would mean record late territory. Doesn’t take much for us to hit it by late April, even a short break in troughing with some brief offshore flow would do it.

DID YOU SEE THE 12Z GFS?!

[SilverFallsAndrew]

WOW, 72 in Burns, 75 at La Grande and 79 in ROME. 

[Cascadia_Wx]

1 hour ago, Phil said:

Omicron finally got me.  

Jaboi here giving a whole new meaning to covid-19 by catching it 19 times.