Brief Heat Wave Ends, But Summer Continues

6pm Tuesday…

We failed to hit 90 here in Portland today as we saw just enough cooling working in off the Pacific Ocean to keep the temps down a few degrees.


Anywhere within 10-20 miles of the Columbia River from Kelso to Troutdale was a bit cooler today as well.  Now down in the Willamette Valley the cooling didn’t penetrate very far.  Salem and Eugene hit 93 and 96 respectively, still plenty hot!  Take at look at the highs eastside…a real scorcher:



By the way, today was the 3rd day in a row with a record warm overnight temp, that’s assuming we don’t drop below 63 before midnight…very unlikely:


Slightly increased onshore flow tomorrow means slightly cooler temps again, probably just 85 at best here in the metro area.  Then much cooler temps Thursday-Saturday as a decent upper-level trough passes by to the north.  The 500mb heights go from around 592dm right now to 575dm Friday morning.  This setup usually produces a big onshore push, but most likely not deep enough for morning drizzle inland.  Then some ridging (though not strong) rebounds Sunday into the middle of next week.

Very good model agreement (surprise!) on these pattern changes the next 7 days.  Look at the 12z GFS and 12z ECMWF ensemble charts:



Both show the big dip to below average Thursday night and Friday then warming afterwards.

So no rain in sight and summer weather is here…enjoy!

Chief Meteorologist Mark Nelsen

9 Responses to Brief Heat Wave Ends, But Summer Continues

  1. WEATHERDAN says:

    93 in Salem yesterday. Already up to 86 degrees. May hit 90 again today. That would be the 6th in a row here. By Friday we should only hit about 80 degrees here. But after that another warm spell looks likely. Next week here in Salem looks to be about 88-93 degrees. But less humidity than this week. At 2:30 PM Salem is 86 degrees. Our DP is 38 and RH is 19%.Have a happy 4th of July everybody.

  2. fridayjoefriday says:

    With all the talk about the heat, what about the bigger weather story? Which weather story, you may ask? The Midwest and the wet cool weather. The last three years, it been the Midwest, hot and dry. Now that the weather has flipped, not a whisper, except for the tornadoes, which are down in number as well.

    President Cleveland, had more hurricanes, in his two terms, than the present day, sitting president. The only thing extreme about the current weather events, city planners let people built in areas were hurricanes had hit in the past and construction costs are through the roof. As for tornado alley, well people know about the risks.

  3. Low temp of 53 today. That was refreshing! It’s my coolest temp since June 22nd.

  4. schmit44 says:

    7/2/2013 Oregon (All) Temperature Summary

    High:109 at BLALOK( 277 ft) & Rye Valley(I-84(2230 ft) & EW1140 Umatilla(364 ft)
    Low: 81 at Rye Valley(I-84(2230 ft)

    High:60 at Newport(30 ft) & MEARES Cape Mear(1421 ft)
    Low: 46 at DIMLKE (4726 ft )

    Largest Diurnal Change: 47 degrees
    DW9636 La Pine (98/51 ) (4236 ft )

    Heaviest Rainfall:
    0.40″ at QUARTZ MOUNTAIN(5700ft)
    0.21″ at STRAWBERRY(5590ft)

  5. Sifton says:

    Enjoying Sir!! Thank you, you too………….

  6. Jeff Raetz says:

    Why no happy valley posting on that map mark?

  7. pappoose in scappoose says:

    I really like it!

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