Jump to content

June (July) 2020 Weather Discussion for the PNW


Recommended Posts

I did two seconds of research and it seems that urban development may be a big factor in Sammamish's temps. Think instead of a chill dense forest to slowly release the runoff flowing into the lake and replace it with water flowing through urban streets and sewers. I'm sure that is wrong though and Tim will correct me.

  • Like 2
Link to comment
Share on other sites

I did two seconds of research and it seems that urban development may be a big factor in Sammamish's temps. Think instead of a chill dense forest to slowly release the runoff flowing into the lake and replace it with water flowing through urban streets and sewers. I'm sure that is wrong though and Tim will correct me.

Not sure... obviously its not an untouched mountain lake. But the main inflow is from the Issaquah Alps and that area is still forested. And there is not much inflow at this time of year anyways. The water temp was in the 50s in late May. And I assume Jim is right... that is just the surface temp (top 10 feet). But our activities are on the surface where its warm. I have never seen any algae blooms in our 15 years of boating there.

 

The lake was formed at the end of the last glacial period as the ice retreated... along with Puget Sound and Lake Washington. I read that the ground is still slowing rising around the Puget Sound area in response to the weight of the ice being removed 10,000 years ago.

 

20200705-165119.jpg

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

Link to comment
Share on other sites

Possible that there is raw sewage being dumped into it. Really warm lakes often develop toxic algae blooms as well.

 

 

Yes Jesse... they allow all the raw sewage to be dumped into the lake.   This is 1910.  :rolleyes:  

 

Here is some information on Lake Washington which is also much cleaner than it was 100 years ago.

 

Treated sewage continued to be pumped into the lake until 1963, but for the next five years, Metro installed more than 100 miles of large trunk lines and interceptors to carry sewage to substantial treatment plants located at Seattle’s West Point and in Renton. By 1968, what had been a daily 20-million-gallon treated sewage discharge into the lake had dropped to zero. Algae plummeted, and researchers say their levels have been relatively insignificant since 1976.

 

While there have been subsequent and infrequent localized beach closures—like those due to goose waste in and around Juanita Beach during the 1990s—the days of widespread and regular beach closures due to health-endangering algae and zooplankton contamination are just hazy memories of a half-century ago. Lake Washington remains an ecological triumph, the world’s most studied and imitated example of successful lake restoration achieved by diverting sewage.

 

https://citylifestyle.com/seattle-wa/articles/life-and-culture/lake-washington-cleanup

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

Link to comment
Share on other sites

Nice day

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.

 

Link to comment
Share on other sites

Enjoying this nice round of weather from the latest pattern but it is not fruitful for T-Storms :(

 

63* degrees greeted me at 5am on my walk.  Lots of folks fishing out in boats.  I decided to forgo my license this year at least at the moment. 
Low of 60 and currently 62* 

69104E4F-FF6C-4B4D-9B2C-085F3D543389.jpeg

  • Like 1
Link to comment
Share on other sites

Low of 60 here this morning. Sunny here, but marine clouds have made it far enough up the lower Columbia where I can see them on the northern horizon, with a thin band banking up against the Cascades to the east. Good sign for some cooler weather ahead.

Link to comment
Share on other sites

Nice morning. 

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.

 

Link to comment
Share on other sites

Gfs doesn’t look hot to end the month. Looks pleasant hopefully the weather leans towards the gfs rather than last nights euro run.

  • Like 2

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

 

 

Link to comment
Share on other sites

Low of 60 here this morning. Sunny here, but marine clouds have made it far enough up the lower Columbia where I can see them on the northern horizon, with a thin band banking up against the Cascades to the east. Good sign for some cooler weather ahead.

Few clouds around here...another noteable difference is we’ve got a SW breeze today up here. Don’t think we will be getting too hot.
  • Like 1

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

 

 

Link to comment
Share on other sites

Was nice up in the Cascades yesterday.

109743676_328206214879901_71681683818574

  • Like 2

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.

 

Link to comment
Share on other sites

Euro fits a middle ground between a toasty Gem and modest gfs next week. Definitely some potential for a region wide week long heat blast.

I personally don’t see that happening. For what little it’s worth.

  • Like 2
Link to comment
Share on other sites

I’ll take 70* water over 57* water if i flip in my kayak!

 

No wonder y’all have marine layers. That’s legit nippy.

 

No chance at that here, w/ the chesapeake/potomac sitting in the mid/upper 80s. Bath water.

  • Like 1
Link to comment
Share on other sites

That's why I could never live on the OR coast year round. Sure, 52 is probably better than 95, but sheesh. Brrrrr.

It always amazes me how cold the area from the central Oregon coast down to Northern California can be in the warm season. At least right along the beaches. Sort of a perfect storm of chilly SSTs/ocean current but being far enough south to limit mixing from passing upper level disturbances.

 

I guess there has also been a lot of northerly wind in that area the last few weeks that has caused cold water (40s and low 50s) to upwell very close to the coastline. Good news is that upwelling is great for fisheries.

Link to comment
Share on other sites

Daly Lake?

 

Si

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.

 

Link to comment
Share on other sites

Si

I wonder if that was named for same person as Mt. Si here.

 

Mount Si lies on the western margin of the Cascade Range just above the coastal plains around Puget Sound, and towers over the nearby town of North Bend. Mount Si and neighboring mountain Little Si were named after local homesteader Josiah "Uncle Si" Merritt.

 

 

Josiah Merritt (? - 1882), sometimes known as "Uncle Si" was an early pioneer of the Pacific NorthwestMount Si and Little Si near North Bend, Washington were named in his honor. Merritt built a cabin at the base of the peak in 1862.[1] He raised vegetables and hogs and kept an orchard. According to local historians, he was a rugged man who sometimes hauled bacon to the large settlements.[2] "He had a native American wife but when his legitimate spouse, 'Aunt Sally' as the settlers called her, arrived from the east, the native woman had to go back to her people".[3] He was known for playing the fiddle.[4] Josiah Merritt is buried in the old Fall City cemetery.[5]

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

Link to comment
Share on other sites

Their numbers seem a little cold lately, I'm guessing a broken thermometer.

Could be. Mark was pimping their numbers on his blog last night. He seems to think the upwelling is creating a very localized cooling effect and the Newport station is picking up on it best since it’s right along the beach.

 

Temps in the mid-40s at this time of day in late July, even in a coastal fog, seems pretty suspect to me though.

Link to comment
Share on other sites

The GFS sure looks nice with how it handles the pattern in the 6-10 day range. Another brief flash of heat followed by a rather cool pattern to end the month.

 

Would be nice to see the Euro correct course today, but something tells me we will probably roast like it is showing. Seems common for would-be troughy patterns to get held up offshore at this point in the summer.

Link to comment
Share on other sites

The GFS sure looks nice with how it handles the pattern in the 6-10 day range. Another brief flash of heat followed by a rather cool pattern to end the month.

 

Would be nice to see the Euro correct course today, but something tells me we will probably roast like it is showing. Seems common for would-be troughy patterns to get held up offshore at this point in the summer.

Except most summers have WPAC forcing starting up and dominating the tropical WAF/mass circulation machine at this point in time.

 

This summer it’s inverted with respect to climo. Large scale subsidence centered right over the dateline.

  • Like 1
Link to comment
Share on other sites

12Z ECMWF continues to show some c-zone drizzle for King County and some showers north of Seattle the next couple of mornings... and then almost an exact repeat of last weekend.    

 

Favorable timing again.

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

Link to comment
Share on other sites

Could be. Mark was pimping their numbers on his blog last night. He seems to think the upwelling is creating a very localized cooling effect and the Newport station is picking up on it best since it’s right along the beach.

 

Temps in the mid-40s at this time of day in late July, even in a coastal fog, seems pretty suspect to me though.

 

Yeah, that would be an incredibly cold coastal inversion and the surrounding stations (and of course the SSTs) don't support anything close to that.

 

This personal station a little north of ONP there in town had a 63/53 spread yesterday and is currently 62.

 

https://www.wunderground.com/dashboard/pws/KORNEWPO54/graph/2020-07-20/2020-07-20/daily

 

Another station south of town just blocks from the ocean had a 57/50 spread yesterday and is currently 57.

 

https://www.wunderground.com/dashboard/pws/KORSOUTH3/graph/2020-07-19/2020-07-19/daily

 

I would imagine given ONP's location east of Hwy 101, it's probably a little bit warmer than the South Beach personal station.

Link to comment
Share on other sites

Looks like the 12z Euro shortens next week’s heat spike again. Second run in a row to move that way.

 

Down to ~ 3 days now.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Popular Contributors

  • Activity Stream

    1. 7153

      Polite Politics

    2. 5976

      March 2024 Weather in the PNW

    3. 5976

      March 2024 Weather in the PNW

    4. 5976

      March 2024 Weather in the PNW

    5. 7153

      Polite Politics

×
×
  • Create New...