90 Degree Day

Snapshot It was a very warm…okay hot…day today.  Looks like PDX was the coolest spot in the Willamette Valley.  Salem was 94 and Eugene 96.


Hard to believe, but Brookings once again went past century mark, jumping to 102 degrees late this afternoon.  It was 85 there this morning.  Now Steve Pierce JUST sent me an email (one of only 400-600 since January), pointing out the AG station just south of Brookings was 64 at 9:15pm with a light southwest wind, then the north breeze picked up…15 minutes later it was 88 degrees.  Now that’s a thin marine layer!  Thanks Steve.


We have a well-advertised marine push in progress right now.  It’s triggered by an upper level trough passing by to the north.  Now this one is a “northwesterly” marine push, which often doesn’t give us much low cloud cover.  Notice that dewpoints have dropped somewhat dramatically in spots.  I see the dewpoint here at the station has dropped well down into the 40s.  This should give us a cooler night tonight and tomorrow night.  Even with the cooler airmass Thursday, sunshine plus dry air should push temps back up near 80 degrees.


As I mentioned last night, upper level ridging bounces back Friday-Sunday.  500mb heights get up close to 590 dm later Saturday, which should push temps back into the lower 90s again.


Long-range maps still look a bit “troughy” starting Monday, but each model is a bit different.  Of course more marine influence is likely.

22 Responses to 90 Degree Day

  1. offroadjosh(kila-7miles west of kalispell Montana) says:

    High winds today!!! had avg winds of 24.3 mph and a high gust of 46mph! avg gusts were (haven’t looked at my station for that yet but it seemed like at a min they were 35-36mph avg gust.. but still 46mph for a high gust!!! and several hit 40-45mph=)

  2. Atmospheric Wrath says:

    Luvry, yep we are getting closer to the fall storm season. Which I think we will see some real flirts with the big one, if not it happening for sure….
    The evening AFD is an interesting read.
    .SHORT TERM…AN INTERESTING WEATHER PATTERN IS SETTING UP OVER THE PACIFIC NORTHWEST THIS EVENING. ENHANCED ONSHORE FLOW PERSISTED FOR MOST OF THE DAY…BEHIND AN UNSEASONABLY VIGOROUS COLD FRONT THAT MOVED ACROSS WASHINGTON AND IDAHO EARLIER TODAY. HIGH PRESSURE STRENGTHENED BEHIND THAT FRONT…AND ONSHORE GRADIENTS RAMPED UP TO +6.5 MB FROM KPDX-KDLS THIS AFTERNOON. THIS HELPED GUSTY NW WINDS DEVELOP ACROSS THE REGION…AND THE MARINE LAYER WAS DEEPER THAN THE PAST COUPLE DAYS. THIS ALLOWED TEMPERATURES TO HOLD IN THE 70S FOR THE PORTLAND METRO AREA…THE HIGH TEMPERATURE OF 75 DEGREES TODAY AT KPDX WAS 15 DEGREES COOLER THAN WEDNESDAYS HIGH OF 90 DEGREES. A SECOND PUSH OF EVEN COLDER AIR CROSSED THE US/CANADA BORDER NEAR THE OKANAGAN HIGHLANDS…RESULTING IN IMPRESSIVE WIND GUSTS ACROSS SOUTH-CENTRAL BRITISH COLUMBIA AND INTO NORTH/EAST WASHINGTON AND IDAHO PANHANDLE THIS AFTERNOON. PENTICTON BC REPORTED GUSTS OVER 60 MPH AND OMAK WASHINGTON REPORTED GUSTS TO 50 MPH AS THE COOLER AIR FUNNELED INTO THE COLUMBIA BASIN…AND FAINT SIGNS OF DUST COULD BE SEEN ON VISIBLE IMAGERY AS THIS BURST OF WIND PUSHED SOUTH INTO WASHINGTON THIS EVENING. WHILE MOST OF THE IMPACT OF THIS WIND BURST WILL REMAIN EAST OF THE CASCADES…SOME MODELS SHOW SOME IMPLICATIONS FOR OUR FORECAST AREA LATER TONIGHT. 00Z NAM/GFS AND 02Z RUC ALL SHOW SIGNS OF THIS COOL/DRY POOL TRYING TO MOVE THROUGH THE COLUMBIA RIVER GORGE AS A BACKDOOR FRONT EARLY FRI MORNING. 00Z MET GUIDANCE FOR TTD/PDX SHOW 15-20 KT SUSTAINED EAST WINDS DEVELOPING AS THIS SURGE MOVES THROUGH AROUND 15-18Z FRIDAY MORNING! THIS WOULD BE MORE REMINISCENT OF A FEBRUARY EAST WIND EVENT THAN A TYPICAL JULY PATTERN. HAVE DECIDED NOT TO BITE ON THIS MODEL GUIDANCE QUITE YET… BUT WILL UPDATE THE FORECAST TO MAKE SOME MENTION OF EAST WINDS FOR THE CASCADES…GORGE AND NORTH WILLAMETTE VALLEY FRIDAY. THE DRIER E-NE WINDS WILL LIKELY ALLOW THE REGION TO HEAT UP FAST FRIDAY…AS AN UPPER RIDGE BUILDS ACROSS THE DISTRICT. OFFSHORE FLOW WILL LIKELY BE SUSTAINED BY A THERMAL TROUGH BUILDING UP THE OREGON COAST FRIDAY AND SATURDAY. OFFSHORE FLOW PEAKS AT THE COAST FRIDAY…AND THAT SHOULD BE THE WARMEST DAY THERE WITH HIGHS IN THE 70S OR LOWER 80S. TEMPS MAY PUSH 90 FURTHER INLAND FRIDAY AS 850 MB TEMPS WARM TO 14-18 DEG C…AND WILL LIKELY GAIN ANOTHER COUPLE DEGREES ON SATURDAY. MEANWHILE THE COAST WILL PROBABLY COOL A BIT SATURDAY AS OFFSHORE GRADIENTS EASE. MORE SIGNIFICANT COOLING SPREADS INTO COASTAL VALLEYS SUNDAY AS WEAK UPPER TROUGH APPROACHES THE COAST. SOME COOLING POSSIBLE INLAND SUNDAY…MAINLY NORTH…BUT GFS/NAM/ECMWF TIMING OF UPPER TROUGH MAY BE TOO LATE FOR THE SOUTH TO SEE A MAJOR COOLDOWN SUNDAY…BETTER CHANCE ON MONDAY.
    WEAGLE
    That is impressive if it verifies with this type of an east wind event.

  3. Luvry (Beaverton) says:

    Phil said it earlier! No more sunsets past 9…downhill from here, just think, in about 2 months we could easily be talking about fall storms and even wind events 🙂
    I personally feel with the cold temps around the globe, the continued record low solar cycle, and the indicies, we could could get hit hard this winter…but of course, I said that last winter, hahahahahaha.
    75 and sunny is my fav summer day, 90+ sucks unless I’m at the river, and 100+ is the reason I DO NOT LIVE in the SW.

  4. Ryan (Walnut Grove) says:

    I’ll complain about the sun! I thrive in rain and with clouds. Sun and 80 something merely means my allergies will declare a ceaseless war and win!
    I’m already ready for fall.

  5. According the the NOAA CPC, after this month, going into august we should see below average temperatures.
    I wont complain about the sun, it is great.

  6. Atmospheric Wrath says:

    A line of severe thunderstorms moving into the Chicago, Illinois area.
    [Streaming Cam]
    http://mfile.akamai.com/25193/live/reflector:20750.asx
    Lightning is just now becoming visible.
    Enjoy.
    – Rob

  7. HIO Phil (Punxsutawney) says:

    Check out NWS-Portland, it’s right there, they mention mid-90’s the same as Mark has in his forecast.

  8. HIO Phil (Punxsutawney) says:

    As of today, sunset in Portland is before 9:00pm. It’s all downhill from here untill next year for sun lovers.
    The west side of town still gets another day or two with 9:00 or better. :p

  9. Jesse-Orchards says:

    Really? I’m not seeing anything in the models to make me think Saturday will be any warmer than Tuesday or Wednesday. Heights look to be about the same, and strong easterly low-level flow does not look to be present. Just your run of the mill Summer north winds, just enough to cut off marine influence.

  10. HIO Phil (Punxsutawney) says:

    Special Weather Statement out for Hot Weather this Saturday.
    Only 70! as of 4:00pm at Hillsboro airport. Much cooler today.

  11. Jesse-Orchards says:

    That sucks.

  12. Atmospheric Wrath says:

    New 7-day out.
    http://www.kptv.com/wxmap/9430868/detail.html
    Those 70’s are nearly gone.
    We barely dip into the upper 70’s now.

  13. Jesse-Orchards says:

    I was born early January ’86, the day the cold snap that embraced the Portland area most of November-December 1985 broke.

  14. Atmospheric Wrath says:

    What a perfect day today….
    72.9 with a very refreshing breeze.
    On to severe weather.
    A line of severe thunderstorms with damaging winds in excess of 70mph is moving into the Madison, Wisconsin area.
    [Streaming Cam]
    http://cogencam.fpm.wisc.edu/view/view.shtml

  15. The Triforce says:

    I was born in 86 and that is when the drought started in California and I have read there was a drought here in Oregon too.

  16. I forgot to mention why it was so hot the summer of 87. Most likely is due to the fact that was the first year the earth had me in it, so things really started heating up right after spring.
    Only 21 years ago. It was a good year. Lot’s of good memories.

  17. The Triforce says:

    Five is cool!
    I am at 67F right now with a humidity of 35% and a DP of 39F from my ole Oregon Scientific.

  18. Luvry says:

    Rob, I hate to disagree with you because I normally don’t…I’m only disagreeing with you on a feeling, no scientific basis 🙂
    My feelings are a cooler week next week and after, a few mid 80 days with a 90 thrown in here or there but I don’t see any major heatwave…but that’s only my feeling…guess we’ll see.
    67.3, 3.5mph NW wind, only 38% humidity.

  19. Atmospheric Wrath says:

    Mark, thanks for the update.
    Something is telling me that either middle of next week models run warmer, or we see a major heat wave in the July 18th-28th time frame.
    68.1 F
    46 DP
    WNW 8.7 G 15.8
    Good night everyone.
    – Rob

  20. But third time’s a charm!

  21. The Triforce says:

    second! I am at 72.5F now and 34% humidity with a DP of 43F.

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