PNW April 2023 Weather Discussion

[Ken in Wood Village]

It looks like the core of the cold air is starting to come onshore. I looked at the NWS website and they said we could start seeing thunderstorms after 8am (at least in the Portland area). The SPC shows that Monday could be active for the Willamette Valley too.

[GHweatherChris]

Light snow here!

[MossMan]

A wet deck…Not a white deck. Currently raining and 35. Looks like I hit 34 at one point early this morning. 

[SilverFallsAndrew]

Pretty wet for sure, but on the board in April! 

[KeyPeninsula_Wx]

2 minutes ago, GHweatherChris said:

Light snow here!

Had a feeling you might see something this morning. I see Shelton is reporting snow as well. Just a tad too warm here overnight has been 36-37. Close but not quite. 

[Cascadia_Wx]

38 with some chunky rain falling currently. Ended up with a 50/40 spread yesterday. Chilly showers at times but also lots of quiet periods with sunbreaks. Would be nice to see things get a little more active today.

[Cascadia_Wx]

8 minutes ago, SilverFallsAndrew said:

Pretty wet for sure, but on the board in April! 

Children for untold generations will be talking about what an amazing winter Andrew had back in 22-23.

[SilverFallsAndrew]

An update to Burns, setting their all-time record for coldest March. At the current airport location they blew away their record by about 5F. 

Minimum 31-Day Mean Avg Temperature 
for BURNS MUNICIPAL AIRPORT, OR

Rank, Value, EndingDate, MissingDays
1, 26.1, 2023-03-31, 0
2, 31.3, 1985-03-31, 0
3, 31.7, 2008-03-31, 0
4, 33.1, 1976-03-31, 12
5, 33.3, 2002-03-31, 0
6, 33.4, 1993-03-31, 0
7, 34.0, 1999-03-31, 0
8, 34.2, 1975-03-31, 6
9, 34.3, 1977-03-31, 10
10, 34.7, 2006-03-31, 0

 

But they also beat out 1952 at the old Harney Branch Experiment station, which was 26.4. from 1952.

Minimum 31-Day Mean Avg Temperature 
for HARNEY BRANCH EXPERIMENT STN, OR

Rank, Value, EndingDate, MissingDays
1, 26.4, 1952-03-31, 1
2, 30.9, 1936-03-31, 1
3, 31.1, 1942-03-31, 2
4, 31.8, 1951-03-31, 0
5, 32.3, 1935-03-31, 0
6, 32.9, 1933-03-31, 0
7, 33.5, 1950-03-31, 1
8, 34.1, 1924-03-31, 2
9, 34.6, 1938-03-31, 0
10, 34.8, 1954-03-31, 3

[SilverFallsAndrew]

Crater Lake

Minimum 31-Day Mean Avg Temperature 
for CRATER LAKE NPS HQ, OR

Rank, Value, EndingDate, MissingDays
1, 20.1, 2023-03-31, 0
2, 21.9, 2006-03-31, 0
3, 23.1, 1971-03-31, 0
4, 23.4, 1977-03-31, 1
5, 23.5, 1958-03-31, 0
6, 23.5, 1962-03-31, 0
7, 23.7, 1967-03-31, 0
8, 23.8, 1991-03-31, 1
9, 24.0, 1938-03-31, 0
10, 24.1, 1999-03-31, 2

Ranked pretty high on the list for snow too.

Maximum 31-Day Total Snowfall 
for CRATER LAKE NPS HQ, OR

Rank, Value, EndingDate, MissingDays
1, 194.1, 1938-03-31, 0
2, 181.1, 1950-03-31, 0
3, 179.3, 2023-03-31, 0
4, 161.8, 2011-03-31, 0
5, 156.0, 1962-03-31, 0
6, 152.5, 1957-03-31, 1
7, 149.0, 1961-03-31, 0
8, 148.5, 1971-03-31, 0
9, 148.0, 1983-03-31, 0
10, 141.0, 1975-03-31, 1

[Rubus Leucodermis]

Nothing but slushy rain here. A little slush managed to accumulate on the parked cars, but that was it.

Should have known better, in retrospect. It is after March 1st, therefore:

[Ken in Wood Village]

34 minutes ago, MossMan said:

A wet deck…Not a white deck. Currently raining and 35. Looks like I hit 34 at one point early this morning. 

I know everyone was hoping for some snow but it really looks like we could see it down to some really low elevations late tonight into tomorrow morning. That's when we could see a chance of snow

[High Desert Mathew]

3 minutes ago, SilverFallsAndrew said:

Crater Lake

Minimum 31-Day Mean Avg Temperature 
for CRATER LAKE NPS HQ, OR

Rank, Value, EndingDate, MissingDays
1, 20.1, 2023-03-31, 0
2, 21.9, 2006-03-31, 0
3, 23.1, 1971-03-31, 0
4, 23.4, 1977-03-31, 1
5, 23.5, 1958-03-31, 0
6, 23.5, 1962-03-31, 0
7, 23.7, 1967-03-31, 0
8, 23.8, 1991-03-31, 1
9, 24.0, 1938-03-31, 0
10, 24.1, 1999-03-31, 2

Ranked pretty high on the list for snow too.

Maximum 31-Day Total Snowfall 
for CRATER LAKE NPS HQ, OR

Rank, Value, EndingDate, MissingDays
1, 194.1, 1938-03-31, 0
2, 181.1, 1950-03-31, 0
3, 179.3, 2023-03-31, 0
4, 161.8, 2011-03-31, 0
5, 156.0, 1962-03-31, 0
6, 152.5, 1957-03-31, 1
7, 149.0, 1961-03-31, 0
8, 148.5, 1971-03-31, 0
9, 148.0, 1983-03-31, 0
10, 141.0, 1975-03-31, 1

Love seeing those types of winters. Unfortunately it wasn’t a great one here in the Redmond area. Usually those would coincide but not this year. 

[Rubus Leucodermis]

3 minutes ago, Ken in Wood Village said:

I know everyone was hoping for some snow but it really looks like we could see it down to some really low elevations late tonight into tomorrow morning. That's when we could see a chance of snow

[MR.SNOWMIZER]

Light to moderate snow and 33 degrees.  Had a dusting on the trees earlier

[TT-SEA]

Based on my cams at home there is a light coating on the grass.

[MossMan]

Rain/snow mix at Lake Goodwin. 

[Cold Snap]

A few snowflakes mixing in right now. Temp is 36.6.

[Cold Snap]

Looks like the EPSL mostly King county south could see some snow these next few nights based off the 06z Euro. I wouldn’t expect anything to accumulate much though especially during the daylight hours.

[T-Town]

A few flakes mixing in here. 38 degrees. 

[SilverFallsAndrew]

Willamette Basin snow pack is now up to 163% of normal. 

[KeyPeninsula_Wx]

18 minutes ago, T-Town said:

A few flakes mixing in here. 38 degrees. 

I’m at Fred meyer and can confirm some flakes mixing in with the rain. Might be the theme in the overnight/morning hours the next couple days. 

[SnowySeeker]

Currently 35 degrees with a rain/snow mix.

[KeyPeninsula_Wx]

Pretty wet flakeage…but flakes at this time of year is hard to pull off. 

[SilverFallsAndrew]

At SLE the November-March period was the 24th coldest since 1892. However, it was the 2nd coldest since 1985 with only 2007-08 edging it out. 

It was the 10th coldest Feb/March combo and coldest since 1989. Even with how "cold" February/March have been in recent years the only other ones at SLE in the top 30 this century are 2019 (21) and 2009 (25). Though much of that probably has to do with UHI... Well that's what I thought, but when I look at just average high temps, the 21st century picture is even more bleak. 

[SilverFallsAndrew]

At EUG it was their 3rd coldest Feb/March combo, however, their records only go back to 1938. It was #7 coldest November-March. Also slightly behind 2007-08. 

[SilverFallsAndrew]

Continuing to geek out on the ACIS data... Interestingly 21-22 was one of the warmest winters on record at Crater Lake. 

On the other hand, this November-March was the 3rd coldest at Crater Lake in their 1919-present period of record. Pretty impressive. Only 1948-49 and 1968-69 were colder. 

To date Crater Lake has their 20th snowiest season (October-March), but its the 2nd snowiest this century (Behind 2010-11). For seasonal totals overall, if they have a big April and decent May they could break into the top 10 all time, and possibly pass 2010-11 though that would be a heavy lift. They aren't far behind 05-06 and 16-17' for on the overall list and may pass them both in the next few days. 

Edited April 2, 2023 by SilverFallsAndrew

[The Cats Meow]

A ver cold cold rain this morning.

38 and cold rain in fact.

Very impressive.

[TT-SEA]

I don't think there will be much of a warm spell... trends are clear on models towards wetter and flatter.   Going to enjoy some humid rain though... relatively speaking of course.  It won't be Phil level humid.     

[SilverFallsAndrew]

1 minute ago, TT-SEA said:

I don't think there will be much of a warm spell... trends are clear on models towards wetter and flatter.   Going to enjoy some humid rain though... relatively speaking of course.  It won't be Phil level humid.     

Down here it looks like we could potentially hit 70 still. Well in the valley, probably not up here. 

[SilverFallsAndrew]

Pretty wet. 3.73" up here which is over half our average April rainfall. 

This thing is still dumping 9" of Kuchera here... I'm feeling its overdone, but we'll see how the next couple days go. What's amazing is it's showing an additional 3-4' of snow along the crest from Mt. Jefferson south to the Sky Lakes Wilderness. About 2' at Mt. Hood. 

[The Winter Warlock]

Snowing here in Covington at 520 ft

[LowerGarfield]

A friend reported snow. They live near Bellingham or higher up in Skagit County.

Showers here in SeaTac. I think it's safe to say that in the words of Rick Rizz, the roof is (will be) closed.

[SilverFallsAndrew]

3 minutes ago, The Winter Warlock said:

Snowing here in Covington at 520 ft

Wonder how @snow_wizard is doing? Doesn't he live in C-ToWN?

[SnowWillarrive]

4 minutes ago, The Winter Warlock said:

Snowing here in Covington at 520 ft

Heavy snow here as well.  East King county getting massive flakes! 

[SilverFallsAndrew]

Just now, SnowWillarrive said:

Heavy snow here as well.  East King county getting massive flakes! 

Wow! Palm Sunday blessings!

[The Winter Warlock]

9 minutes ago, SilverFallsAndrew said:

Wonder how @snow_wizard is doing? Doesn't he live in C-ToWN?

Near here, yeah. Last little cell is moving past now and then it looks dry. Nice big flakes - accumulated maybe 1/4 inch.
 

 

[FroYoBro]

7 minutes ago, SilverFallsAndrew said:

Wow! Palm Sunday blessings!

Jesus is loving this!

[MossMan]

A quick clip of the mix at Lake Goodwin when I was there earlier. It’s quite raw out, still only 36 at home currently. 

[SilverFallsAndrew]

Very dynamic trough for TAX DAY on the 12z GFS. 

[FroYoBro]

42 degrees and a big batch of showers heading this way. Going to be a cold April day! Bless up!