April “Heat Wave” Doesn’t Disappoint; Showery Weekend Ahead

9:30pm Thursday

Okay, I’ll admit it.   Today was weird…hazy and on the edge of “hot”.  I had the AC cranking in the car, on April 26th!  The haze was likely due to controlled burns in Central Oregon.  We warmed another two degrees in Portland today, reaching within 4 degrees of the all-time April high temperature (90).

Mark PDX Record High Hot

We’ve only seen a few instances of 3 consecutive 80 degree days in the month of April and this was one of them.  We broke records the last two days, then tied the record today

Mark Hot Heatwave So Far

The most interesting aspect today from a meteorological standpoint was the surge of southwest wind into the central/south Willamette Valley and up the Columbia River to Kelso/Longview.  Check out high temps today:

Todays Observed Highs OrWa 2017

The metro area sticks out doesn’t it?  I think this is the only time I’ve seen mid 80s in the metro area and only 60s in the south Valley, with both locations under sunshine most of the day.

This evening the cool air is pouring inland and temps are falling like the proverbial “rock” in Portland

2017 Current Temps PDX Metro Area Earth Scene

Nice natural air conditioning don’t you think?

I have been tracking a few thunderstorms the past few hours moving out ahead of the upper-level low offshore.  Earlier a few strikes were detected in Linn County, and I see a thunderstorm just east of Florence at this hour.  Most likely this action will continue through the overnight hours, but I doubt it’ll make it all the way up into NW Oregon.

The forecast for tomorrow through the weekend is easy…cool, cloudy, with showers at times.  That’s because the upper-level low will be tracking across Oregon from tomorrow through Sunday afternoon.  It’ll be strange to turn on the heat again after the past few days!

Chief Meteorologist Mark Nelsen

48 Responses to April “Heat Wave” Doesn’t Disappoint; Showery Weekend Ahead

  1. K says:

    More active weather possible two weeks out, but I see nothing before that 😦

  2. Ken in Wood Village says:

    You should see the CAPE for the Central U.S. A lot of places are over 2,000 j/kg and then on Thursday, there are some areas that are over 3,000 j/kg. Can you imagine that being here…lol

  3. K says:

    Ugh, weather looks boring in the coming days. I hope for another shot at thunderstorms in the near future… or a rare May windstorm.

    • Muxpux (Castle Rock) says:

      From the NWS AFD…

      “There is also a chance for isolated thunderstorms on Sunday, but due
      to low confidence decided to not include it in the forecast at the

    • Ken in Wood Village says:

      Yea, the models are very quiet for the next few days. Things can change over time 🙂

  4. WEATHERDAN says:

    Hit 60,s both Saturday and Sunday with only .26 of rain. Some sun too. Not bad for April. Let the warming begin. Peace.

  5. Roland Derksen says:

    Well, I see some blue skies on the SW horizon this afternoon, so I think we’re on our way up, in terms of weather conditions. I ‘m sure we’ll finish with this month being my 3rd wettest April in the past 44 years. (my length of years in weather observation).

  6. Ken in Wood Village says:

    The EURO just upped the CAPE for out area today. Looking at the radar, showers seem to be building up good. The extra sunshine seems to be able to give the showers extra lift 🙂

  7. Jason Hougak says:

    Timberline has broke the 600” season total mark

  8. Jason Hougak says:

    Timberline has broken the 600” season total mark.

  9. Puget Sound Convergence Zone parked itself over me from about 4:30 to 8:00pm today. Add that to what fell overnight and I’m at .73″ for the past 24 hours.

  10. K says:

    Thunderstorm passed through with loud thunder and moderately heavy hail.

    • Ken in Wood Village says:

      I’m looking south from 242nd and Glisen. I haven’t seen any lightning but it looks like a hail shaft coming out of the clouds 😉

      • K says:

        Intense hail here, Hailstorm in progress.

        • Ken in Wood Village says:

          Cool, told everyone last night that we could see thunderstorms today. I feel good 🤗🤗🤗🤗🤗

        • K says:

          Still raining pretty hard, I think another storm is coming in.

        • K says:

          Someone check the radar, I can’t at the moment.

        • Ken in Wood Village says:

          Sorry, was a little busy. There are showers around. Some looked intense awhile ago, but they look like they are less intense now. 😉

        • Ken in Wood Village says:

          I spoke to soon. There is one close to Gresham that has intensified now.

        • K says:

          Super fun. You said elevated CAPE values tomorrow too, right?

        • Ken in Wood Village says:

          Yes, but the EURO has back off a little from yesterday. If I had to guess, I would say there is a slight chance compared to today.

  11. W7ENK says:

    Nice little cell just exploded over the West side, headed straight toward Milwaukie. We can hear it talking from up on the hill, North end of Oregon City.

    She’s a beaut!

  12. Roland Derksen says:

    Back to the rainy weather here: 51F with steady rain for the last couple of hours. We’ll have more rain for this April than last one, but I don’t expect it will last long enough to break the April 1996 record of 7.84 inches.

  13. Anonymous says:

    Lebanon had Thunder

  14. Ken in Wood Village says:

    I would say there could be an outside chance of an isolated thunderstorm(s) this weekend with the heating of the day. I was just looking at the CAPE on the EURO and there seems to be some good instability for Saturday and Sunday. Maybe we could get lucky 😉

  15. W7ENK says:

    I heard an unsubstantiated rumor that South Salem had thunderstorms overnight… Any truth to that?

    Certainly didn’t get anything up here in Portland metro. 😦

    • Ken in Wood Village says:

      Someone in Albany said they had a thunderstorm. They posted in the last post.

    • Anonymous says:

      I could see and hear a t-storm to my east. Actually saw lightning behind a rainbow!

    • boydo3 says:

      I heard thunder and saw lightning to my east. I was checking out a rainbow when I saw lightning behind it. Very eerie!

  16. Roland Derksen says:

    I saw it get up to 79F here yesterday, which is admittedly cooler than locations down near Portland, but warm enough for me in summer, let alone April. Looking forward to a bit of rain this weekend- I don’t mind it, as long as I know it’s not going to last all next week as well.

    • Made it up to 79˚F here on Bainbridge Island, too. That’s warmer than the midsummer average high here (and I believe yours as well)! We’ve already had more than “a bit” of rain this weekend; see my other recent post.

  17. K says:

    I see that winds have kicked up in The Dalles, sustained at 25-30 mph right now gusting higher.

  18. Paul D says:

    Aha! Mark said “heat wave”!

  19. Muxpux (Castle Rock) says:

    Seems to me the marine push from the south, and up the Columbia from my way helped “squeeze” the atmosphere over Portland a bit more. If compression causes heating, this would make sense as the downsloping winds have nowhere to outflow to, causing a stronger compression effect to make up for the lack of a real strong offshore gradient.

    It’s a geographical event as much as it is meteorological

  20. Kennitha harbaugh says:

    I love when mark messes up it’s funny an makes it seem more like he’s just people like us 😁 I know he is but the news is so serious I kinda like something to be just real talk. Also I have worked on my boat all week in the nice weather getting ready for opening day of the 26th annual black lake fishing derby an it’s sat the weather just had to get rainy for opening day right lol ok thanks I love Fox 12 News!

  21. Ken in Wood Village says:

    First, I for one am glad this heat is over. 🙂

    • K says:

      Absolutely. My personal station hit 90! In April! So, what do you think of developments for thunderstorms tonight into early tomorrow?

      • Ken in Wood Village says:

        It probably won’t happen. The Low is way to far off the coast to have any impact. If the Low was closer, then we probably have a better chance of getting thunderstorms. We have all spring and summer to get some thunderstorms. We seem to have a better chance in the summer when the monsoon season kicks in. I going to enjoy the cooler weather, I’ll be able to get better sleep…hehe. 🙂

    • Paul D says:

      Me too! It was three days too long 🙂

    • Gene says:

      Lots of whining about really nice weather

      • K says:

        Nice is subjective. For example, my idea of nice weather is mid-fifties with mist and a gusty south wind. For others, it could be mid-eighties and blazing sun. All depends on the person. So the people complaining about this week’s heat wave just dislike this kind of weather, and don’t think it’s very nice at all.

        • Paul D says:

          Well put! Thank you very much!

          I don’t like the 80 degree temperatures, but keep my mouth shut about them in summer when they are normal. In April is a whole different story. 25 degrees over normal just rubs me the wrong way 🙂

      • W7ENK says:

        Get used to it, Gene. There are a few on here who start crying when the temperature gets over 60 degrees. It’s really annoying.

        • K says:

          I really do dislike temperatures over 75 when they occur before summer starts. If they occur when they are supposed to, then I’m typically fine with them.

        • Paul D says:

          Be thankful it’s only words typed on a web page and you’re not actually hearing my high pitched whiny voice 🙂

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