Tuesday Morning Update

We still don’t expect sticking snow TODAY here in the western Valleys…it’s just a little too warm.  Take a look at our morning RPM model prediction of snowfall from 4am today to 4am Wednesday.

If anything, I think it’s a little underdone for the heavier snow showers coming in later tonight and the Wednesday morning commute.  This map would imply no snow even up on the West Hills, Mt. Scott, Bald Peak etc.  As mentioned in yesterday evening’s post, I think ANYONE could see a brief dusting early Wednesday morning, but a trace-3″ is sure possible near and above 1,000′ by tomorrow morning.

In the short term, one band of showers has raced well ahead of the main rain band (still offshore), and with it’s early arrival we could easily see snow mixed in with the rain as we continue to gradually warm up.  10am temps say it’s already too warm to stick; up around 37-40 at all the official observing sites.  Plus, I see a milder south wind arriving right now in some of the hills like Mt. Scott and the West Hills.  Good news if you DON’T want snow.

The forecast for increasing afternoon rain still looks good, but Wednesday morning should be snowy, at least in the air, for most of us.

Chief Meteorologist Mark Nelsen

26 Responses to Tuesday Morning Update

  1. Karl Bonner says:

    On my way from Maywood Park back to The Dalles this afternoon (about 3-4pm) I saw lots of flakes between Troutdale and Hood River on I-84, and the snow showers appear to be arriving in The Dalles just about now…at least we should see some flakes this evening, even if nothing sticks.

  2. Lee Wilson says:

    We need the “wind Icon for in the Longivew & Castle Rock WA area, we are getting winds between 25-30 mph. I have a video on my cell not sure where to send it though. with gusts of up to 40..I don’t have an official wind gauge or anything , that is a guess. It seems that the Cowlitz river also has an effect on our wind patterns.

    • W7ENK says:


      Temp 39F
      DP 34F
      RH 81%
      SSE 14 mph
      Precip –
      Daily Precip 0.00in
      BP 29.67
      Visibility 10.0 in

      Wait, what?!? Visibility 10 inches???

  3. SnowedIn - North Plains says:

    The temperature dropped to 37 from 39. Currently rain/snow mix here at the 200ft elevation in North Plains. COME ON SNOW!!

  4. Mark says:

    West Hills tower temps keep rising. 33.4 at 1800 ft level. This was as of noon, so with the onset of showers, we may see this drop for a bit, but it looks to be what most of us thought, and Mark figured upon. No snow in the lowlands, and certainly nothing sticking.

  5. Snowing in NE PDX but it is 41F go figure.

  6. Jory (Sandy) says:

    Sandy temp is 43, East wind at about 10MPH.

    Kind of disappointed temps have risen that high. 😦

  7. Yevpolo1990 says:

    By the way, if any of you guys ever wonder where to get soundings, here is a good link to what Mark uses. http://www.atmos.washington.edu/mm5rt/rt/showsounding_d4.cgi?initmodel=GFS&yyyymmddhh=current_gfs&reqhr=27&loc=kpdx&locname=Portland%2COR&latlon=45.59N%2C122.59W

    THAT ^^^ has nailed todays forecast, 7-10am temps really rose due to the south winds….

    South winds seem to be increasing by a bit:
    -1.2mb, http://wxweb.meteostar.com/meteogram/link_pdiff.shtml?choice=kpdx+keug

    East winds have actually ramped up quite a bit, up to -3.5 mb:

    • Ryan says:

      Wind is completely calm right now and it feels very chilly out. Can definitely see the temps dropping a bit as the moisture comes in. I expected a strong south wind by now.

  8. Runrain says:

    Tiny flakes and a brisk east wind out at PDX.

  9. Left Sweet Home an hour ago, it was 44 deg. and no precip. Driving west toward Albany and the temp dropped to 38 with rain and snow mixed in. At my house right now and it’s 37 with a good mix. Strong SE winds.

  10. ryan says:

    Bring it on!

  11. Dave in South Salem (500') says:

    South wind, rain sprinkles and 40 degrees

  12. Muxpux (Castle Rock 175') says:

    Just had a rain snow mix with the last shower that rolled through

  13. …36.3 here, going to be interesting….

  14. W7ENK says:

    Decent wind blowing over downtown right now, equal parts S and E.

    37 degrees.

    So close, yet so far!

  15. W7ENK says:

    Wow, 2 posts in 15 minutes… Record pace! :mrgreen:

  16. Sifton says:

    Lets hope this is the last hurrah so I can get some sun around here!

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