Marine Air Cools NW OR & SW WA; Drizzle Spots Thursday AM

9pm Wednesday…

That was quite a change today wasn’t it? For the first time in a couple weeks we totally busted the forecast. The marine layer was thicker than I expected…up around 4,000′ deep. That meant we never saw a total breakout into sunshine. Sure, a few sunbreaks here and there but that’s about it. After 14 days of 80+ weather, we finally saw a cooler day, only reaching 79 in Portland. That 14 consecutive day stretch was a new record for June in Portland; one of many records set this month.

June ends as the hottest on record, just edging out the very hot June 2015. Final monthly temperature is 70.7, August 2015 was 70.3. That month was consistently hot, but this year was more extreme for a shorter period. 9 days at/above 90 ties the all-time June record as well. The 30 year average for an ENTIRE summer is 14 in Portland

The marine layer thickens slightly tonight and by sunrise tomorrow the view from space should look like this afternoon’s view…all gray west of the Cascades.

There has been a lot of thunderstorm action over central/eastern Oregon this afternoon/evening. Very active and hopefully we don’t get a bunch of new/large fires going. The dry conditions, temperatures, and thunderstorms make it seem more like early August. It’s going to be a long summer.

Very sad news today from the heatwave; dozens of people have died. At least 45 in Multnomah county alone. I think it’s safe to assume more will be found alone in homes/apartments over the next few days. It really got me down for a few hours earlier in the day. My mother came over to our house for a couple nights Saturday-Monday, just in case the electricity went out at her assisted living facility. It didn’t and she was fine of course. But I keep thinking of people dying in their homes, especially the elderly…all alone with no friends or family to help. You might be surprised to find more people die from heat in the USA than any other weather event

In Oregon it’s a bit different, the #2 killer after taking the ocean into account. In general, weather doesn’t directly kill people very often here. If you take away the ocean-related deaths, less than 10 a year. That changed dramatically with this heat wave.

It’ll probably take some time to process all the temperature reports from the big heat wave. We know Hermiston officially reached 118 in Oregon Tuesday. The Dalles and Richland also hit 118 in Washington. The Dalles airport, where readings are taken, is in Washington.

But did some location hit 119, or 120, or 121? Most likely one of the cooperative observing stations in the two states did. We will see. Our local (Oregon) AMS chapter is hoping to plan a meeting just for this historic heat wave. Maybe in September.

We are in the summer dry spell now with no rain in sight, other than some marine drizzle Thursday morning. 12z ECWMWF 24hr QPF forecast shows 2 out of 51 members produced a tenth or two…in the next two weeks! That’s about the driest it gets

That’s it for now; I won’t be blogging as regularly over the next month or so…it’s summer vacation time.

Chief Meteorologist Mark Nelsen

44 Responses to Marine Air Cools NW OR & SW WA; Drizzle Spots Thursday AM

  1. Jason Hougak says:

    That heat wave scorched many Douglas Fir out here in Clackamas County. Ready for this summer to end and a horrible rainy stormy, snowy cold winter to sink it’s teeth into the PNW and kick Kalifornia out of Oregon!!!! We are overdue for a flood!

    • Michael G. says:

      I am running my sprinkler 24/7 for my trees. The cedars got scorched the hardest on the south slope. The rest are okay where the trees are thick forest. Some of the Douglas Fir are showing stress. I hope we get rain soon.

  2. Roland Derksen says:

    looking back in time on this date in 1987- i had an overcast day on July 5th, with steady rain and a high of 55f (just a 1 degree difference with the low). I hated that rainy day, but now I wish i could have one like that this month!

  3. tim says:

    The 6-10 8-14 and week 3-4 has us well above normal during that period i think 100 pluse is possible again.

  4. 5OClockCharlie says:

    12z GFS operational run is bringing back triple digit temps on the 12th-14th…

  5. Roland Derksen says:

    No drizzle here yesterday in my Vancouver(BC), but the clouds were welcome anyway. A lot of us here is BC are still shaken over what happened at Lytton- and elsewhere. Talk about going out in a blaze of “glory”!:-(

  6. Garron Slocum says:

    If you could, get a list together that compiles all of our PNlW heatwave data from this event, I would love it!

  7. tim says:

    00z gfs is on fire tonight, hot hot hot for the next two weeks especially east of the cascades.

  8. tim says:

    Latest models showing la nina this winter but things could change of course.

    • Mr T (Stayton Oregon) says:

      That’s what was shown last winter. La Nothing is more like it.

    • Anonymous says:

      Where are you seeing these models? I’m interested in taking a look for myself!

  9. donaleen Kohn says:

    I think you did it! The forecast is looking good.

  10. JERAT416 says:

    Thanks Mark for working hard to keep us all in the loop. You’re my favorite Portland meteorologist for good reason. Enjoy some time off, you earned it. Please everyone be safe with fires and fireworks. Even if you find a county or city that allows them to be set off, that doesn’t mean it’s safe. Have a great holiday weekend everyone!

    • Paul D says:

      I’m curious to know what people with central A/C keep their thermostat set at normally, and during the heatwave we just had.

      I have a co-worker who got a call from his wife because their A/C was set at 68 and the house was 73. She wanted him to come home and fix it!

      I normally have mine at 73, and drop the temperature every couple hours during the night otherwise I don’t sleep good. During the scorching hot days we just had, I moved it to 75.

      When I lived in Phoenix AZ I kept my thermostat at 80, which sucked, but any lower was too expensive.

  11. Jake says:

    I am horrified, about 65 people have died from WA and OR alone but BC is in total crisis.

    “At least 486 dead in British Columbia amid historic heat wave”

    https://news.yahoo.com/least-233-dead-british-columbia-200303452.html

  12. SunLover says:

    Just tell me when the sun is coming back. Thats all I need to know for now.

    • Garron Slocum says:

      If you could, get a list together that compiles all of our PNlW heatwave data from this event, I would love it!

  13. W7ENK says:

    I smell petrichor…

  14. W7ENK says:

    Lytton, BC set the all-time record high temperature for Canada three days in a row over the weekend, topping out at 121F on Monday. Two days later, the town gets erased by a fast moving wildfire.

    https://www.cbc.ca/amp/1.6085919

    • Jake says:

      My god those poor people. That is some insane footage of the smoke blowing sideways like that; no chance fighting something like that in those conditions.

  15. donaleen Kohn says:

    I want yesterday’s weather all the time. Please arrange it.

    On Wed, Jun 30, 2021 at 8:53 PM FOX 12 Weather Blog wrote:

    > Mark Nelsen posted: ” 9pm Wednesday… That was quite a change today > wasn’t it? For the first time in a couple weeks we totally busted the > forecast. The marine layer was thicker than I expected…up around 4,000′ > deep. That meant we never saw a total breakout into sunsh” >

  16. time says:

    Clearly we were due for another 2015 summer and 00z gfs is showing another heatwave by mid july which is fine, bbq forever.

  17. Emmanuel says:

    It’s been a crazy heat wave and all this talk of global warming has really intensified I’m just wondering why don’t we take into consideration what the planet is doing when record cold temp are broken and happening every year dating back to 1800? This past February in Portland broke a lot of cold temp records and I expect more to happen in the near future if not this coming winter. Conclusion somehow winter records being broken mean nothing but summer records means everything to future global weather. Seems one sided to me

    • Joshua Lieber says:

      Individual days, storms, weeks, months mean nothing. That’s weather. Long-term trends and patterns matter. That’s climate. The PNW is undeniably warming. You can decide for yourself if that is due to natural variability or if it is caused by or at least assisted by man. Most people with knowledge on the subject believe the latter.

      • Evan -- Cedar Mill says:

        Well said.

        • Emmanuel says:

          What long term trends are you going by the last 70 years? or hundreds/thousands of years? Keep in mind 70/80 years is not very long term so your right that months weeks don’t matter but even years don’t matter when your talking about weather cycles in the grand scheme of things the earth has gone through many cycles full blown ice ages mini ice ages warming periods ect if your argument is looking at the big picture long term, then that great lets look at all time period not just the past few decades which could end up meaning nothing

        • Mr T (Stayton Oregon) says:

          Emmanuel is a paid troll (either private or government) to stir the pot up and it seems to have almost worked. Somehow Mark got a target painted by an agency.

        • Patrick B says:

          Someone has a different opinion than you doesn’t make them a troll, just some one with a different opinion, quit being childish.

    • W7ENK says:

      There were no cold temperature records broken in Portland this February.

      • Anonymous says:

        From Mark himself The February 11th-13th 2021 snow/ice storm is going to be one for the record books. A few stats for you:

        PDX only made it to 30 degrees today; for the 2nd consecutive day. That’s a rare event this late in the season. In fact only TWICE has PDX stayed at/below 30 degrees after the first week of February. In 1956 and 1960. We haven’t seen such a cold day this late in the season during my lifetime…brrr!

        Besides outside of oregon their are cold records getting broken everyday around the world

        • W7ENK says:

          From your previous comment:

          This past February in Portland…

          So, you were speaking specifically about Portland, not any place outside of Oregon. Please keep the goalposts where they belong.

          …broke a lot of cold temp records

          While Mark may have stated that it has been a long time, nowhere did he indicate that anything about that cold was record breaking.

          So my original reply still stands as true, there were no cold temperature records broken in Portland this February.

        • Emmanuel says:

          While Mark may have stated that it has been a long time, nowhere did he indicate that anything about that cold was record breaking.
          The February 11th-13th 2021 snow/ice storm is going to be one for the record books. AKA one for the record books lol

          I was speaking about Portland and many other places around the world that always have cold records being broken on given days years ect I hope your not implying that cold records are never being broken because if you are even Mark himself will tell you they are anyone who keeps up with records on both warm and cold will tell you they are
          You kinda prove my initial point that people want to always focus on warm records meaning proof its imminent global warming but cold records either in Oregon or other places like Europe Siberia mean nothing just normal winter weather. All I am saying is Let’s look at the whole picture before we start making bold statements about what this record warm weather this past week even means.

        • Opie Dilldock says:

          The coldest reading in Portland last winter was 24 F. That’s 27 degrees warmer than the coldest on record.

          Probably the best starting point for looking at an AGW trend is around 1950, when CO2 concentrations began to really take off:

        • Emmanuel says:

          If you read My original text I never mentioned coldest ever people taking words out of context, obviously I was referring to particular day not coldest ever that would be hard to do in Feb and no arctic blast. lowest temperature of -2.0°F being recorded on January 31 1950. when that gets broken which Im sure it will at some point maybe sooner then later what will you say then ice age? its called cycles people it happens every 100s of years up down up down kinda like solar max solar min everything has cycles thats long term prospective for you. Can I get a amen haha fun debates guys

        • Mr T (Stayton Oregon) says:

          Go tell your higher controllers you failed and get your torture session over with. The sooner the faster you can escape it!

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