Cold Front Moving Through: Tuesday AM Commute Okay

Nice cold front moving through metro area at noon.  You’ll know when it passes because the gusty south wind suddenly switches to lighter northwest and the temperature will drop a couple of degrees. 

The next few hours will see a chance for snowflakes mixed in along the Cascade foothills, but we hardly saw that even in the Coast Range as the front went through.  As a result, the Hoodland corridor from Sandy out to Rhododendron COULD see a change to snow, but it would be a very light accumulation and not affect Highway 26 below 1,500′.

Behind the front?  Nice sunshine pops out the next few hours and temps move back up into the upper 40s.

The chance for any sticking snow is looking quite low now for overnight and into early tomorrow morning; mainly because of lack of showers.  There’s a good chance the west metro area is completely dry after 2pm this afternoon through the end of the week.  Maybe a flurry eastside in the morning…maybe.  But the morning commute should be fine.  Note that both the RPM and 1.3km WRF-GFS show no accumulation in the lower elevations through 4am tomorrow morning:

There is a slightly better chance for a dusting from Salem south, seems to be a bit better moisture as a vort max moves through, but nothing like the deep moisture we had to work with last week with those heavy showers.  So it might even be tough to get a 2 hour delay for the kids up in the hills.

It’s on to sunshine Tuesday-Friday!  The very warm temps (into the 60s) still on tap for Thursday and Friday.

Chief Meteorologist Mark Nelsen

52 Responses to Cold Front Moving Through: Tuesday AM Commute Okay

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

    Some showers wayyy out there thanks to the Langley radar. I’d say about a 20% of seeing any moisture tonight. Oh well… 🙂

  2. Yevpolo1990 says:

    Hey nice seeing you today Mark! Check your email. I have sent you some weather goods.

  3. Andrew (Portland....Sylvan Highlands ~800 feet) says:

    38 here currently, would be nice to have some moisture to work with 😦

  4. Muxpux (Castle Rock 175') says:

    Is the NWS site down for everyone else? I can’t get it to load

  5. Wendy-Silverlake, Wa says:

    It’s snowing!!

  6. chris says:

    is it just me or is there more moisture moving in off the coast could it be that the vort max is coming in a little further north?

  7. Ummmm Mark, Where is the sun you said I would see? Dark sky and hailing. I had a small patch of blue sky for about 20 minutes. LOL!

  8. W7ENK says:

    Starting to get reports from friends up North that it’s snowing down to some pretty low elevations in and around the Puget Sound area, mainly North of Seattle, bu that’s all moving this way?

    • mark says:

      Take a look at any water vapor imagery. Not much to work with for this. Much less than the burst of snow we received this past week.

      Over folks. Moving onto thinking about the warmth towards weeks end. Another bust for winter weather here. So goes the trend.

    • chris s says:

      Ya, because having a chance at a little bit of snow beginning of March, only to have it maybe not happen in all areas is a bust. Geez, I mean ya this winter was not the greatest, but seriously, the definition of a bust is when something was definitely suppose to happen, and at the very end it went away completely. Man, we saw 2-4 inches of snow in the Salem area last thursday, we were only suppose to see a dusting to an inch in higher spots at best, so I guess thats a bust right, because what was suppose to happen didnt, by your definition.

    • Anton C says:

      “another bust”? Either hyperbole intended for humor or you are just ridiculous. Sadly, I suspect the latter.

    • Dave in South Salem (500') says:

      I had 7 inches plus 2 more dustings this winter, that’s more than average.

  9. pappoose in scappoose says:

    I like light accumulations!

    NATIONAL WEATHER SERVICE PORTLAND OR
    210 PM PST MON MAR 5 2012

    1000-500 MB THICKNESS DOWN TO AROUND 518-522 DAM LATER TONIGHT AND TUE MORNING SUPPORT SNOW LEVELS AROUND 300-1000 FEET WITH THE LOWEST
    LEVELS IN THE NORTH. AT THIS POINT IT APPEARS THAT SNOWFLAKES WILL REACH THE LOWEST ELEVATIONS BUT ACCUMULATIONS WILL BE LIGHT…IF ANY.
    CLOSER TO THE 500-1000 FT ELEVATIONS…MAY SEE UP TO 1 INCH ACCUMULATION BUT COVERAGE WILL BE SPOTTY AS NEW MODEL RUNS HAVE DECREASED QPF A LITTLE.

  10. Silverton500 says:

    Now I’m watching that bunch of showers just coming over the beach directly East of Portland (headed SE I presume).

  11. post front… had an instantaneous drop from 37.2 to 35.4, snowing hard, 40.1 to 35.2 took 15 minutes…glad this one is rolling thru in the daylight!..

  12. The front just passed through here about 20 minutes ago. Gusty winds, heavy rain, sleet, wet snow and the temp. dropped from 45 to 43 in less than 5 minutes and is now 38. Currently chunky rain. Maybe we will see a peak of the sun before it set…gotta love Oregon!

  13. wwm says:

    Lol, the conditions (at the top of the page) say “freezing rain” in Portland right now.

    Classic example of the inmates running the asylum.

  14. Austin-Felida says:

    There saying not enough snow so its going to snow tonight:)

  15. South? Maybe I will be in the sweet spot for a change.

    • Dave in South Salem (500') says:

      Its all about the South Salem sweet spot this winter so I expect to get the most snow of the valley again.

  16. EA_TTD says:

    7 degrees in 8 minutes…I think the front cleared Troutdale?!?

    05 Mar 1:11 pm PST 41 37 87 VRBL 7G31 2.00 +RA BR FEW013 BKN021 OVC031 29.85 29.820 0.12 OK

    05 Mar 1:03 pm PST 48 45 87 W 20G28 5.00 RA BR FEW012 BKN019 OVC036 29.83 29.800 0.02 OK

    • Aleta-West Gresham says:

      About when the hail moved through the area! It’s amazing how quickly the temperature will drop with the hail.

  17. gidrons says:

    There’s a big active sunspot rotating our direction. Maybe we’ll see some auroras with the clear skies…

  18. W7ENK says:

    Pfft! Figures.

  19. Brandan-Damascus(675ft) says:

    Heavy hail in clackamas 82nd drive & 212

  20. Silverton500 says:

    Where oh where is that front? Not to Salem yet (still S winds around 18mph). Around Hillsboro and McMinnville?

  21. With the vort max heading into southern Oregon late tonight and the flow becoming NNW there won’t be much moisture around PDX when it’s cold enough for snow…..

  22. Muxpux (Castle Rock 175') says:

    Getting some clearing up here and the rain is finally over. Bring on the sunshine. Man that’s gonna feel nice

  23. Ryan says:

    I’d rather have the “not enough moisture” factor than the “not cold enough”. Could always have a band of showered develop to bring in showers, but hard to suddenly drop the temps.

  24. pappoose in scappoose says:

    A low chance for sticking snow is still better than usual!

  25. Wendy-Silverlake, Wa says:

    I left the house at 10:30 this morning and it was 44 degrees. Just got home, two hours later, and it’s 39 degrees with really chunky rain. What a difference two hours makes.

  26. Jesse-Orchards says:

    Hope to see this forecast go down in flames. I think it might. 🙂

  27. …up here pre-front, raining, 42.1…

  28. bgb41 says:

    Oh can’t wait for those 60s.. Front moving through BG Lake at 12:30pm with heavy rain.

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