Another Round of Sweaty Weather

Got back from a (very brief) beach vacation and then sat through an entire day of drizzle, light rain, and gloomy weather at home.  But at least my garage is all cleaned and vacuumed out, fish tank is spotless, and I have fresh shirts pressed for the upcoming workweek.  We camped at Manzanita (Nehalem Bay State Park).  That might be one of my new favorites, although I hear it can get rough in summertime with the northwest wind cranking around Neah-Kah-Nie mountain.  We just had light south wind Friday and Saturday which was perfect.  Forgot that EVERYTHING gets wet when you have a clear night at the beach…geez, couldn’t believe the condensation outside AND inside the tent.  That reminded me why I prefer camping in the mountains and drier eastside of Oregon.   

Hard to believe we can go the entire summer with really no humid weather, and then we get round #2 of tropical moisture in less than two weeks during the last few days of September.  Dewpoints are once again back into the 60s this evening due to a very warm and moist airmass moving up from the tropics around the Dateline.  Check out the precipitable water image…widespread 1.25″+ area from Vancouver Island to just off California that extends all the way back to northwest of Hawaii.  I haven’t analyzed maps in detail like I would at work, but I’ve seen enough to realize the next two days and anights will be very warm and humid.  More record warm temperatures on the way most likely.  I notice the WRF-GFS and our RPM keep temps near/above 60 through Monday night.  That’s very unusual for early Fall.  Bascially the moisture is here (low level and higher up) with nowhere to go until we start getting some light offshore flow to dry things out on Wednesday here at the surface.  For that reason it’s hard to believe a “mostly sunny” forecast for Monday, probably more like partly cloudy.  But with a temp starting in the lower 60s…80 won’t be too far away with some sunshine….regardless, it’s going to be a very humid and warm day Monday!

Chief Meteorologist Mark Nelsen

95 Responses to Another Round of Sweaty Weather

  1. Kyle says:

    Ignore what I said. Somehow an article got pasted on to my sentence which I tried to get rid of making me have typos.

    Darn enities.

    • Boydo3 500' North Albany says:

      T storms aren’t likely. Unfortunately. If this had been mid August and a nice cutoff low developed off shore…….
      Looks like we will just gradually transition to a more westerly flow.

    • Boydo3 500' North Albany says:

      BTW I still am sitting at 77deg. at my location.

  2. Kyle says:

    Ahem! Any chance for T-storms out here with this sticky stuffArctic?

    *Gets megaphone ready*

  3. 09-27-2010 Oregon Temperature Extremes

    Warmest:
    High 97 at North Fork Malheur River
    Low 65 at Glen Jackson Bridge , Lincoln City & Little McCoy Creek

    Coolest:
    High 61 at Timberline 7K (Palmer Lift)
    Low 30 at Klamath NWR

    Largest Diurnal Change: 60 degrees
    Lorella (91/31)

  4. Josh "The Snowman" From Everett, WA "aka" Captain Convergence Zone Keepint Y'all posted on weather up North :) says:

    This weather is typical La Nina and bodes well for some exciting stuff this winter.

    Can’t wait for a month or two from now :).

  5. Tyler in Hazel Dell says:

    … Record low at Bettles…

    The low temperature at Bettles this morning of zero degrees is a new
    record low for September 27… breaking the previous record of
    6 above set in 1957. This also ties the record low for the month
    of September at Bettles of zero degrees… last set on
    September 23 1992.

    Weather observations have been made at the present airfield at Bettles
    since 1951.

  6. laurie(sylvan) says:

    I’m shocked LA reached 113 today! It’s even 103 at LAX. I’m in SFO where it’s 93.

    • PaulB/Eugene says:

      Previous all time high was 112…set in 1990 in midsummer.

      in Sept 1955 and in Sept 1988 it got to 110F (second highest all time temps)…both La Nina years for whatever it is worth.

    • Downtown Los Angeles hit their high at 12:15PM today.
      Here is the record report.

      Record Report
      000
      SXUS76 KLOX 272350 AAA
      RERLOX

      RECORD EVENT REPORT…PRELIMINARY
      NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
      450 PM PDT MON SEP 27 2010

      …HOTTEST DAY EVER IN DOWNTOWN LOS ANGELES…

      …MANY OTHER RECORDS SET ACROSS SOUTHWESTERN CALIFORNIA TODAY…

      THE TEMPERATURE IN DOWNTOWN LOS ANGELES TODAY REACHED 113 DEGREES
      AT 1215 PM PDT. THAT WAS THE HIGHEST TEMPERATURE EVER RECORDED IN
      DOWNTOWN LOS ANGELES SINCE RECORDS BEGAN IN 1877. THE PREVIOUS
      RECORD WAS 112 DEGREES SET ON JUNE 26TH 1990.

      THE PREVIOUS RECORD FOR THE DAY IN DOWNTOWN LOS ANGELES WAS 106
      DEGREES SET IN 1963…AND THE PREVIOUS RECORD FOR THE MONTH OF
      SEPTEMBER WAS 110 DEGREES SET ON SEPTEMBER 1ST 1955 AND EQUALED
      ON SEPTEMBER 4TH 1988.

      THE HIGH TEMPERATURE AT LONG BEACH AIRPORT TODAY WAS 111 DEGREES
      AT 109 PM PDT. THAT TIED THE HIGHEST TEMPERATURE EVER RECORDED AT
      LONG BEACH AIRPORT…WHICH WAS SET ON OCTOBER 15TH 1961. IT ALSO SET
      A NEW RECORD FOR THE MONTH OF SEPTEMBER…ECLIPSING THE OLD RECORD
      OF 110 DEGREES SET ON SEPTEMBER 26TH 1963.

      THE HIGH TEMPERATURE AT LOS ANGELES AIRPORT TODAY WAS 105 DEGREES
      AT 1130 AM PDT. THAT TIED THE DAILY RECORD WHICH WAS SET IN 1963.

      THE HIGH TEMPERATURE AT BURBANK AIRPORT TODAY WAS 110 DEGREES. THAT
      BROKE THE DAILY RECORD OF 104 DEGREES SET IN 1963.

      THE HIGH TEMPERATURE IN WOODLAND HILLS AT PIERCE COLLEGE TODAY
      WAS 111 DEGREES. THAT BROKE THE DAILY RECORD OF 107 DEGREES SET IN
      1993.

      THE HIGH TEMPERATURE IN OXNARD AT THE NATIONAL WEATHER SERVICE
      OFFICE TODAY WAS 100 DEGREES. THAT BROKE THE DAILY RECORD
      OF 99 DEGREES SET IN 1963.

      THE HIGH TEMPERATURE AT SANTA BARBARA AIRPORT WAS 100 DEGREES
      TODAY. THAT BROKE THE DAILY RECORD OF 99 DEGREES SET IN 1970.

      THE HIGH TEMPERATURE AT SANTA MARIA AIRPORT WAS 105 DEGREES. THAT
      BROKE THE DAILY RECORD OF 99 DEGREES SET IN 1917.

      THE HIGH TEMPERATURE AT PASO ROBLES AIRPORT TODAY WAS 108 DEGREES.
      THAT BROKE THE DAILY RECORD OF 105 DEGREES SET IN 1963.

      THE HIGH TEMPERATURE AT LANCASTER AIRPORT TODAY WAS 103 DEGREES.
      THAT TIED THE DAILY RECORD WHICH WAS SET IN 2003.

      THE HIGH TEMPERATURE AT PALMDALE AIRPORT TODAY WAS 102 DEGREES. THAT
      TIED THE DAILY RECORD WHICH WAS SET IN 2003.

      BRUNO/SETO/KAPLAN

    • Garron near washington square says:

      Thanks Brian, it was also in the mid 90’s in San Francisco today, just amazing stuff! I am so going camping next weekend, it looks perfect! Back to my BBQ. Note to self: I will never remove the a/c before October AGAIN!

    • Jesse-Orchards says:

      Garron, you’re probably safe removing the AC before October.

      This kind of setup is really rare.

    • Boydo3 500' North Albany says:

      LOTS more concrete there now!

  7. Tyler in Hazel Dell says:

    Btw, through the 15th of this month, my average low was 52…now through this morning, it sits at 53.4, just a few tenths of a degree short of the average lows for July and August 🙂

  8. Kyle says:

    Any chance of T-storms out of all this sticky and I mean S-T-I-C-K-Y heat?

  9. The temp in Toledo, Oregon at 3:42pm is 90 degrees and humid! Guess summer finally arrived!

  10. *****Highest all-time max temperature ever recorded at USC in Downtown Los Angeles today. 113 degrees for a High.

    Here is a list of their top 20 all-time hottest days since 1921:

    http://www.wrh.noaa.gov/lox/climate/data/cqt_himax.txt

    • WeatherLurker says:

      Including today, 5 of their top 10 hottest days are in September. But not a single day in August is in the top 20. Strange.

    • WeatherLurker says:

      Just noticed they even have a day in early April on the list but not August. That’s so weird.

    • That makes sense, In July/August, they very rarely get offshore flow in the LA Basin due to the persistent Colorado river valley thermal trough which keeps winds onshore. As the sun gets lower in September, the pressure is higher in the deserts with the shorter days which make the beach hotter.
      The east wind season is usually in Fall and really Sept 10 to Sept 28 is the peak of summer in downtown Los Angeles climatologically speaking.

    • Punxsutawney (aka HIOPHIL) at work by Sunset High elev ~280' says:

      That day in early April was the final straw that convinced me to move back to Portland. 106 in April? NO THANK YOU!!

    • Garron near washington square says:

      Very true Brian, I have a friend that lives in 1000 Oaks Ca. He’s always getting severe Santa Ana winds in late Sept through October. They routinely get the lowest humidity and highest temps this time of year due to the winds.

    • I had a feeling this morning that something special was going to happen today down there. Very hot low level air mass just above sea level.

      Just 15 miles east of downtown LA this morning, Fremont Canyon (el 1781) had an overnight low of 89 this morning. It was 100 there by 9am.

      The low of 77 at USC might have been a record minimum today.

    • Karl Bonner says:

      Two questions: why do quite a few of the scorcher days in LA come in the spring? Wouldn’t the cool ocean water make it impossible?

      Secondly. Suppose that the Willamette Valley region got a similar upper-level set up to this in the last week of September. What kind of highs might it bring to US? (I’m going to guess about 90-93 but could be wrong.)

  11. Punxsutawney (aka HIOPHIL) at work by Sunset High elev ~280' says:

    83.5, DP 69 at my station in Hillsboro at the moment. Some small lonely cu around Beaverton/Hillsboro and over the West Hills

  12. Garron near washington square says:

    One of the sites is officially offline down in LA. Must have melted!!!

    http://www.wrh.noaa.gov/mesowest/getobext.php?wfo=lox&sid=KCQT&num=72

  13. Jethro (Canby ~187') says:

    84.3 F, DP 65, RH 51%

    No me gusta… I would not do well in the midwest. I’ll take 78 and arid, thank you!

  14. PaulO says:

    Nehalem Bay IS the best state park camground. In the summer just get a site on the west edge towards the beach. The low dunes block the wind quite well and these sites are considerably warmer than the others.

    • Garron near washington square says:

      That’s cool PaulO, if this weather hangs together, I will try camping there next weekend! Never been there.

  15. Cgavic says:

    Yesterday a high of 60 degs, chilly and wet.
    This a m. 61 for a lo and hot….(?)

  16. Rob "Wrath" S.E. Portland says:

    79.8 F, DP 62, RH 52%, NE @ 5.2mph.

  17. …yea yea…warm and wet…75.something here, with about 137% humidity…but…thats not important…what is, to maybe 3 people on this blog is: HOT TUNA…Aladdin theater, a week from tomorrow…….
    …a chance to see the cream of the crop….

  18. Hit what might be my high for today….80.4° last hour. Down to 79.4 at 1pm…Very light east wind

    DP 67 RH 70%

  19. Garron near washington square says:

    The wind and temps around LA are really picking up. It is supposed to hit 109 in LA, their all time hi is 112. Look at the OBS from this site about 9 pm last night, I’m sure its just an anomaly , but gusty all the same in those mts.

    http://www.wrh.noaa.gov/mesowest/getobext.php?sid=WLYC1&table=1&banner=off

  20. Warmest overnight low of all-time for September this morning at Pearson airport in Vancouver (KVUO)

    65 degrees…..

    http://www.wrh.noaa.gov/mesowest/getobext.php?wfo=mso&sid=KVUO&num=48&raw=0&dbn=m

    • Jesse-Orchards says:

      Keep in mind that Pearson moved about 15 years ago to a much more UHI prone area, while they kept the records from the old location.

  21. Ridge is poking north now, I suspect 82 at PDX today and if we get easterly drift it will hit 85.

  22. Rob "Wrath" S.E. Portland says:

    I just turned on the A/C! Summer is trying to come back.

    • Garron near washington square says:

      Hey, quit rubbing it in…lol, I took my A/C out over a week ago! Enjoy that wonderful cool and DRY air, e-mail some to the rest of us…lol

  23. Rob "Wrath" S.E. Portland says:

    It is horribly muggy outside. 72.1, DP 64.. It feels like the south. It’s only 10:35 AM and it feels like July out there. Enough of this…

    • 75 here with a slight easterly breeze.

    • Rob "Wrath" S.E. Portland says:

      You know what was really strange? It was 62.4 here at 2:30 AM and mostly clear skies… That’s just plain unusual for this time of year.

      I also have increasing E-NE winds here… Not strong by any means… Appears to maybe be some slight downslope heating? Unsure of that right now.

    • Sean Mott (Lebanon, IN) says:

      Oh come’on Rob! 64F dewpoint is when it just starts to get a little muggy.. LOL.. At least it’s not 85-90 with a that dewpoint or it would feel even worse.

    • Rob "Wrath" S.E. Portland says:

      Hey, Sean? How are you doing?

      That’s why we live west of the Rockies so we don’t get 60+ dewpoints too common. This September is going against everything. C’mon ULL!

  24. Tyler in Hazel Dell says:

    I love the temp spreads in Winnemucca, Nevada…low yesterday was 34, high was 90. Today the low was 36, and the forecast high is 92.

    http://www.wunderground.com/history/airport/KWMC/201/9/27/MonthlyHistory.html#calendar

  25. Kyle says:

    Or has my tiredness caused me to imagaine a post I made?

    Man I sure hope we get some surprise convection due to the sunshine.

  26. Kyle says:

    Did a post of mine get deleted? Just curious.

    • Garron near washington square says:

      Kyle,

      You posted on the last blog entry instead of this one @ 7:43AM. Maybe that’s where your mystery blog entry disappeared to.

  27. Punxsutawney (aka HIOPHIL) at work by Sunset High elev ~280' says:

    I’m all for warmth and humidity if the reward is convection, otherwise bring on the cool fall weather!

  28. BG Lake this morning…

    High of 64.7 yesterday.. Temp dropped only 3.3 degrees overnight to a low of 61.4 at 3:30am this morning.

    Today marks the 6th day in 2010 where my low was 60 degrees or warmer. Todays low was 2nd warmest low of 2010 at BG Lake

    08-15 62.3
    09-27 61.4
    07-11 60.6
    07-08 60.5
    08-14 60.1
    09-16 60.0

  29. Kyle says:

    Sorry about your tent being all wet both in and out.

    That sounds like fun…….NOT! 😦

    Looks like I am not the only one the universe tries to pick on to ruin a good vacation. Their must be a personality trait in some of us. 🙂

  30. Ryan (Walnut Grove) says:

    This weather is awful.

  31. Ok, We had a record warm night last night here, but so did Fremont Canyon (el 1781) which is in the Los Angeles basin.

    http://mesowest.utah.edu/cgi-bin/droman/meso_base.cgi?stn=FRCC1&time=GMT

    89 degrees for an overnight low…..

  32. Clear skies and 55.5° this morning.

  33. Timmy_Supercell (Hillsboro) says:

    10th poster…

    Warm as heck this morning, 60F with a dew point of 59F, 96% humidity. We saw a lot of mornings like this last Fall, something we should cherish before things get ugly!

  34. Temp 63 DP 62. Just clicked the A/C, was getting muggy at 11:30pm. Crazy.

  35. RobWaltemate says:

    23:00 Temp 60.1 DP 58.1 rain total today 0.71″
    presure is 30.01

    Yep looks a lot like something we just went though!

  36. 00Z GFS – Calling for six 80 degree days in a row now.

    I really wish this would come true but we know it wont.

    • RobWaltemate says:

      I have seen it get hot down here at the beach at odd times. Looks like just about anything goes this year. All I know is if I make a fist I start to sweat! LOL

    • Rob "Wrath" S.E. Portland says:

      I agree I assume we’ll see the ridge build a little, then flop over to the east, then rebuild a bit offshore moving back over the area, but never amplifying much.

    • Karl Bonner says:

      I wonder what kind of temps we would see here if the exact same pattern happened in late July? My guess is that the coolest of the six-day heat wave would come in around 93 or 94 – and the hottest day right near 100. Duration, not intensity, is the culprit.

  37. Rob "Wrath" S.E. Portland says:

    2ND OMG… I AM THE SECOND POSTER!!!1

    Okay that was really uncalled for and downright ridiculous. I should be embarrassed and ashamed of myself, but nah I am not.

    Thanks for the update, Mark.

    IF ONLY we could get a little ULL to spin up off California….

  38. Mike (Orchards 255') says:

    Humid indeed!

    65° with a DP of 63

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