Wet Weekend Ahead

9pm Friday…

Things have slowed down a bit at work this evening so time for a blog post.  I haven’t been posting as much lately for a few reasons.  The most obvious is that it’s a very slow time of the year weather-wise.  Not much to talk about.  I’ve also been busier the past two months since we were short a weather person.  Well, now we’ve hired a very nice Marja Martinez and she’s all up to speed this week.

By the way, if you aren’t following me on Facebook…

or Twitter…


then you ARE missing regular weather updates.

Why?  Because as you can see I often post quick images or links quickly to those two social media outlets that don’t make it onto the blog.  It’s much simpler than starting up a blog posting.  Yes, yes, I know social media can be extremely annoying and there are privacy issues as well.  But don’t worry, someone is probably tracking your every view of this blog posting too.  For convenience I’ve also added these feeds to the right sidebar over there >>>

For example, I posted this incredible timelapse from Mt. Hood last night:

September ends in just a few hours and it has been somewhat unremarkable.  Temperatures have been near average and so has rainfall (click for better view):


So now we head into October.  There is more change in October than in any other month in the Portland area.  Temperatures fall like a rock during the month.  At least it’s fast for the mild maritime climate we live in.


4 of the past 6 Octobers have been quite wet here.  The last two have been real soakers:


Of course you probably remember the urban flooding on Halloween last year, just about 2″ of that October total fell in the last day!

This weekend we have an upper-level low sliding by just offshore.  It’ll be sending impulses of rain showers up over mainly Western OR/WA this weekend.  Lifted indexes and CAPE values suggest thunder IS a possibility either day this weekend.  Tomorrow we get the usual southwesterly flow spring-type showers.  Sunday is a bit more interesting as the low slides in to the south.  We briefly get into a south-southeast flow before the showers finally end in the evening.  That setup can be good for convection/thunder as well.  So be on the lookout and keep a close eye on the radar this weekend.  Here is our RPM rain total forecast for the next few days.  Not exactly huge rain, but a nice soaking again to gradually ease us into the wetter time of year.


This plus the beginning of October means you can turn off your lawn sprinklers.  Keep an eye on hanging baskets or pots on your deck, but even they should be fine without water for at least the next week.

Enjoy the weekend!

Chief Meteorologist Mark Nelsen



40 Responses to Wet Weekend Ahead

  1. Joshua Downtown PDX says:

    The GEM, NAM, GFS, and Mark’s RPM all have us getting over 1″ of rain in the next 48 hours. Should be a fun couple of days with the potential for heavy downpours, hail, and thunder/lightning. Too bad I will be in Dallas where the lows will be 10 degrees above our highs. The 12z GFS operational shows us getting over 8″ of rain through the end of the 16 day run. Yea right.

  2. Jesse - SW Portland Suburbs says:

    Mark, does that map seriously look near average for September to you?

    In reality, PDX was -1.3 for the month, making it our coolest September since 2007. As that map shows, it was a solidly cool month regionally too.

    It’s funny, you’ve been keeping everyone so updated on the string of warm months we’ve been seeing, then we finally get a regionally cool one and absolutely no mention. Just an “unremarkable”. 😆

    • Mark Nelsen says:

      You might want to look at the data instead of hoping their mapping was perfectly accurate. Yes, it has been SLIGHTLY COOL, but PDX was -1.2, SLE & EUG less than 1 degree below normal, and AST was ABOVE average. I should have said slightly cool. Similar to last September. And I said nothing about east of the Cascades. But thanks for keeping me honest as always! When I see a 1.5 to 2 degree negative departure for a month then I will allow myself to call it REMARKABLE I suppose.

    • Greg C says:

      Thanks for sticking up for the little guys.

    • High Desert Mat says:

      Yessssssss!!!! This is what I like. Mark vs. Jesse. Out of all the people that ask for a response or ask a question, he always responds to you Jesse. It’s so funny. You two need to get a room already lol.

    • Chris s says:

      There has to be an issue with the sensor for Astoria… Seems like they have been sticking out like a sore thumb recently…..

  3. Joshua Downtown PDX says:

    FYI, everybody… the Portland radar (KRTX) will be out of service from today at 10 am until Thursday at 12 pm. Seems to me that it would have made more sense to do the upgrades in summer.

  4. Lee Wilson says:

    I hope we do get some sun in on Monday.
    I would love to see if I can go 6 hours with out the electric Company.
    I relocated our solar panels .

    Looking to put a dent in this year’s electric bill..I mean a bigger dent.

    We were not effected by the Cowlitz PUD rate Hike last year .
    In fact, we still lowered our bill.

    Hoping to use solar and wind power for home electronics and other things.

    Had a bit of taste today when at 2:15 I was pulling in 16 amps.

    Which we were not able to do having it in the back yard.

    They are fixing to rebuild our fence so I had to relocate it.

    • Paul D says:

      Sorry, but the sun has moved on, and won’t be seen again in the Portland area until next July.

    • Lee Wilson says:

      Well we will take some sun breaks ..
      I would’ve to see how sun and snow events the solar ouput on our photo voltaic panels.

      I don’t think the sun will stay fully disappeared. ..different weather patterns.

      I just learned the fence repair won’t be until spring or early summer. ..I surely will not be dragging them back ..them things are heavy lol.

  5. Scooter says:

    Just a somewhat interesting nature video I shot this past summer on the Imnaha River.

  6. Dave in SW PDX (235') says:

    Snow on the ground at Crater Lake NP this morning:


  7. JJ78259 says:

    Nice Sunday Morning sitting out in the patio reading the paper had a low of 65 this morning a little chill in the air. It should hit 85 today summer continues.

  8. 0.05 inches of rain here yesterday, and probably even less today. It appears my first significant rain of the month will wait til Thursday night into Friday.

  9. SortingHat says:

    Been raining lightly all evening. 🙂 Don’t go to TheWeatherForums tonight as they smoked some kind of weed and are really high as a kite needing to chill.

    It’s like a total drunk fest over there. I can’t help but wonder since it’s the same userbase if that forum is really legit or if it’s the same admin user doing multiple sock puppet accounts just to make there be a forum existing?

    New people don’t last long there.

  10. Boydo3 N. Albany says:

    Not a fan of the new NWS satellite and water vapor images.

  11. Josh "The Snowman" from Gladstone, OR says:

    Been in Depoe bay since last night and it has been relatively dry. For most of today the action has been north. Looks like the axis and associated front should be rolling through here in the next few hours and I see some nice echoes. Too bad the sun is going down. Go ducks!!

  12. W7ENK says:

    Awful lot of blue sky and sunshine on a day I thought was supposed to be a total washout.

    Not even a tenth of an inch yet, and it’s over?

    I guess we’ll try again tomorrow…

  13. Just some light sprinkles up here this morning, as I write. We probably won’t get much at all this weekend. Speaking of ‘soakers”, of the last 6 Octobers, the 2 wettest I had were 2012 (9.60 inches) and 2014(8.11 inches).

  14. pappoose in scappoose says:

    Relentlessly on watch we are!

  15. Paul D says:

    Is Liana no longer part of the Fox12 weather team?

    • Mark Nelsen says:

      Liana left at the beginning of July. We hired Marja two weeks ago

    • Paul D says:

      You must be a tough boss! She was only there six months!

    • Scooter says:

      Oh that’s too bad for us, she is a most beautiful woman and was pretty good at TV weather forecasting. Wonder if she is continuing with TV weather forecasting somewhere.

    • Paul D says:

      Just found this on her Facebook page: I’ll be pursuing my dream of working in the wedding industry actually! I’ll still be doing STEM and weather related talks in the area, as well as running in the 2017 Mrs. Oregon pageant!

  16. Paul D says:

    Just got my most expensive water bill ever!! Hillsboro likes to jack up their rates every year. Glad to have the water sprinklers off!!!!

  17. Erika Araiza says:

    Is about time we get some rain!!

  18. JJ78259 says:

    Looks like Salem could get .84 inches of rain this weekend.

  19. Ann Merklin says:

    Any snow coming to the Valley this Winter?????

    • Lee Wilson says:

      I hope so .
      Mountains are getting snow as I type.
      Well Mt. ST Helens is. We need to drop 32°F.were currently 52.

    • Lee Wilson says:

      Note changed Channel names and some other things.

    • Lee Wilson says:

      I revamped my YouTube Channel.
      I promise you any sneaky storms will be posted :).

      In the meantime, we had a pleasant surprise.
      We re located our Solar Panels and got a pleasant treat around 2:16 pm.

      We were 98 percent off grid.

      The only thing running was our dryer, furnace, and hot water tank.
      We can jot tamper with the water heater or furnace.

      For if I could they would be on solar.

      Oh special note.
      They do have 12 volt hot water elements for your hot water tank.

      Only catch is you will need a beefy battery bank .

    • Nathan Place says:


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