Snowy In Cascades; 80s Possible Next Week

10pm Wednesday…

Quite a dump of snow in the Cascades this afternoon/evening.

Sophie Hood Snow Totals

Looks like a foot or so has fallen so far above about 5,000′, with lighter amounts (just a few inches) down in the passes.  The snow level has zoomed up to around 6,000′ this evening in advance of the cold that moves through late tonight.  I expect another 3-5″ with the showers tomorrow, but no snow back down to the passes until tomorrow night.  This snow is overdue, because we’d typically see about 2′ of snow each April at Government Camp.  Check out the past 6 years up there…those were some cold/snowy Aprils around 2010!

MarkSnow_GovtCampApril

Here in the lowlands a very wet afternoon/evening as expected.  The rain was slow to arrive but now it’s here to stay through sunrise.

Thursday will be a showers and sunbreaks sort of day, same thing for Friday.  One more cold front moves into the Pacific Northwest Saturday and then a warm front drags across Sunday.  Then after ALL THAT, we see some warmer and drier weather.

By Tuesday and Wednesday a strong upper-level ridge will build right along the West Coast in advance of a cold digging upper-level trough in the east Pacific.  The GFS has finally come around to the sharper ridging the ECMWF has been showing.

MarkJetStream

We haven’t seen this pattern so far this spring with such highly amplified troughs and ridges.  It appears it won’t stick around long, but it will be a dramatic change with offshore flow and sunshine.  The ECMWF continues to be the warmest, showing 850mb temps +14 next Wednesday with easterly wind all the way to the beaches with a thermal trough.  That would give us a high temperature of 80-85 degrees in Portland.  I didn’t go that wild with temps (yet), but the main point is that we’ll likely see our warmest temps so far this spring for the last two days of April.  That’s AFTER 4 more days of wet weather.

Here are the 850mb ensemble charts from the 18z GFS and 12z ECMWF showing the sharp jump in upper-level temps the middle of next week:

tseries_850t_000-360_Portland

tseries_850t_000-384_Portland

 

Chief Meteorologist Mark Nelsen

73 Responses to Snowy In Cascades; 80s Possible Next Week

  1. High Desert Mat says:

    Had snow falling yesterday morning and chilly and now today not a cloud in the sky and feeling warm. Going to be a warm week here. Bout time!!

    Oh and Timmy, my father lives in the Beavercreek area south of Barton about 800′ and he told me there was snow mixed in with the heavier showers yesterday.

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

    Incredible temps showing up in the forecast. Getting the grill ready and shorts/sandals out of the closet.

    • Lurkyloo says:

      I think we’re going to need sunglasses to protect us from the glare of all the pale-arse PNW people wearing shorts! 🙂

  3. Sapo says:

    Luckily, even after this warm period, it is still looking like a pretty dry pattern after that.

  4. vernonia1 says:

    ODOT: Valley, No. Coast: U.S. 20 is closed in both directions near Santiam Summit in Jefferson County at milepost 81.5 following a two vehicle crash earlier this morning. There is a confirmed fatality and other serious injuries. Life Flight is currently on the way. Motorists should avoid the area or expect delays.

  5. David B. says:

    Patchy frost this morning on Bainbridge Island. Probably the last one I will see until fall.

  6. Jason Hougak says:

    Took my daughter-5 and son-2 snowboarding Saturday for the first time. My daughter has skied several times but wanted to try boarding. They had a blast but it is a workout teaching two kids, luckily my mom came so I was able to take off solo for an hour. Was a typical mountain weather with nice sun and whiteouts by midday. Top of the mile was 15-20 feet visibility at best with hard winter type pellet snow. Awesome family day and hope to take them more before they close by end of May. Keep the snow coming. Sunshine coming this week will be nice after working in the mud.

  7. schmit44 says:

    4/27/2014 Oregon (All) Temperature Summary

    Warmest:
    High:63 at HEPP( 311 ft)
    Low: 50 at JUNIPR(359 ft)

    Coldest:
    High:24 at Mount Hood Meado(6601 ft)
    Low: 17 at HOWARD Mt Howard (8150 ft )

    Largest Diurnal Change: 27 degrees
    CW8689 Burns (56/29 ) (4219 ft )

    Heaviest Rainfall:
    1.82″ at Mount Hood Meado(5249ft)
    1.80″ at MARION FORKS(2600ft)

  8. cgavic says:

    No rain, but windy with thunder. Thank goodness for Dish power strips.
    Had just got home from grace community church at noon, turned lights on, printer on and had flat tvs on, and, bamb! Thunder. Every off! But came back on.

    • Hal In Aims says:

      Think it is/was right in between us…..

    • cgavic says:

      Cgavic from sandy or at 890 ft in a long narrow, down-sloped canyon. I say that because we live up against the north side of a hill. Cold east wind barrels down the valley. More snow, and SW winds coming in with the warm up go right over us, not through us. This last winter snow was evidence of that. Thanks.

  9. Hal in Aims says:

    thunderstorm……………

  10. pappoose in scappoose says:

    Look!

  11. Lurkyloo says:

    Haven’t heard any thunder, but wow, it got really dark, windy, cold and rainy. It was sunny and purty a little while ago …

  12. Garron near Washington Square says:

    Crazy current conditions reported out of HIO, currently reporting, MODERATE THUNDER/MODERATE SNOW PELLETS…can anyone confirm this? http://forecast.weather.gov/MapClick.php?CityName=Beaverton&state=OR&site=PQR&lat=45.4573&lon=-122.799#.U11eI1d8vA8

    • ..had snow mixed in the rain during heavy showers all morning at 1700 feet southeast of sandy…

    • Timmy_Supercell (Klamath Falls @ 4200') says:

      That’s impossible. Temps were far too warm. With temps in the lower 50’s and with Hillsboro multiple times below the snow level.

      Stations have been known to report errors on occasion.

    • W7ENK says:

      Is this an error?

      That was in Hillsboro earlier. Not my picture, I stole it from Facebook, but the temperature dropped from mid 50s to low 40s in a matter of minutes with the passing of that line of thundershowers. I think all that white stuff had something to do with it…

    • Timmy_Supercell (Klamath Falls @ 4200') says:

      Hail/pellets was all that was reported. No one from that area said they had snow. I have friends who live there and they told me they didn’t have snow.

  13. W7ENK says:

    I just heard thunder…

  14. pappoose in scappoose says:

    Watch for Strays! Get the burrito wrappers outta the vehicles!

    NATIONAL WEATHER SERVICE PORTLAND OR
    838 AM PDT SUN APR 27 2014

    UPDATE…TODAY THROUGH TUESDAY SHOWERS ARE COMING IN WITH EARNEST THIS MORNING AS AN UPPER LEVEL SHORTWAVE TROUGH MOVES OVER THE AREA. WATER VAPOR IMAGERY SHOWS ANOTHER SHORTWAVE OFFSHORE THAT WILL KEEP SHOWERS GOING THROUGH THE AFTERNOON. COLD AIR ALOFT WILL INCREASE INSTABILITY ADDING TO THE CONVECTIVE NATURE OF THESE SHOWERS.SMALL HAIL MAY ACCOMPANY SOME OF THE HEAVIER SHOWERS…AND THERE MAY EVEN BE A STRAY LIGHTNING STRIKE…MAINLY TO THE NORTH LATER THIS MORNING AND AFTERNOON.

  15. pappoose in scappoose says:

    I really like this view from Crater Lake!

    http://www.nps.gov/webcams-crla/cameraHQ.jpg?v=1785494788

  16. schmit44 says:

    4/26/2014 Oregon (All) Temperature Summary

    Warmest:
    High:64 at DW0069 Ferndale( 840 ft)
    Low: 47 at HEPP(311 ft) & EW1556 Maupin(1910 ft)

    Coldest:
    High:25 at Mount Hood Meado(6601 ft)
    Low: 12 at DIMLKE (4726 ft )

    Largest Diurnal Change: 34 degrees
    DW0460 Sisters (56/22 ) (3251 ft )

    Heaviest Rainfall:
    0.82″ at PACCTY Pacific C(253ft)
    0.72″ at PACCTY-2 Pacific(28ft)
    0.67″ at W7KKE-3 Road’s E(89ft)
    0.66″ at DW4535 Cannon Be(23ft)
    0.64″ at EW4856 Brookings(1365ft)
    0.64″ at MEARES Cape Mear(1421ft)

  17. Timmy_Supercell (Klamath Falls @ 4200') says:

    Snow in Klamath Falls for Winter 2013-2014

    November: 0.00″
    December: 5.00″
    January: 2.50″
    February: 1.30″
    March: 0.00″
    April (so far): 0.25″

    of days with accumulated snow: 6

    Will this go down for the least active snow year for Klamath Falls? As if my total doesn’t already sound bad enough, only 6 snow days?
    And zero in March?
    I’m not surprised the Southern Cascades are in drought.

    Standing at 30% of my average snowfall and time is quickly running out for any further accumulation.

    • Timmy_Supercell (Klamath Falls @ 4200') says:

      Whoa. Didn’t realize my words went big and “blue” like that. 😉

    • Timmy_Supercell (Klamath Falls @ 4200') says:

      I did a “#” number sign and it turned into that. Don’t ask. Are hashtags being utilized here? LOL

    • Boydo3 N. Albany says:

      Never the less…K falls and much of the SE part of the state are in for a water shortage this summer.
      Thanks for posting

    • W7ENK says:

      Tim, check the stats for the winter of 2002-2003. I’m willing to bet that winter was worse. That was my first winter down there for school, and after all the hype I heard about the amazing snowy winters they have down there, I didn’t see my first snowfall until the first week of April. Granted, it snowed some while I was back up in Portland for Christmas, but I wasn’t there to see it and it was completely gone by the time I got back.

      That was also the first winter in like 30-some years the lake didn’t freeze over, I remember reading a newspaper article about that.

    • Timmy_Supercell (Klamath Falls @ 4200') says:

      November is a little more understandable. Typically I notice my snow season starting in Dec, but March at least should have provided around half a foot give or take. And February is probably the 2nd most active month here, so this was a major dry winter.

  18. Garron near Washington Square says:

    Mark, you and your warm bias is thawing my winter heart. Amplified highs, easterly winds. I’m like a kid at OMSI for the 1st time, and it’s going to happen on my days off!!! Everybody aim some aerosol cans straight into the ozone, lets get a jump on summer!!! lol,j/k

  19. Paul D says:

    The 7 day forecast is down to one 80 degree day (from 2). Hopefully that one will disappear too!!

  20. schmit44 says:

    4/26/2014 Oregon (All) Temperature Summary

    Warmest:
    High:64 at JOHN DAY RIVER A( 400 ft)
    Low: 49 at Mary’s Peak(4137 ft)

    Coldest:
    High:30 at Lake(6184 ft) & Mount Hood Meado(6601 ft)
    Low: 16 at MT. HOWARD (7910 ft )

    Largest Diurnal Change: 25 degrees
    CW5507 Camp Sher (55/30 ) (3020 ft )

    Heaviest Rainfall:
    1.04″ at DW6879 Union(2792ft)
    0.78″ at EDEN(4200ft)
    0.71″ at IMBLER(2749ft)
    0.70″ at CW9803 Elgin(2772ft)

  21. Jason Hougak says:

    Come on Blazers pull it off

  22. Taylor says:

    Really interesting cloud structure in Happy Valley. Possible thunderstorm? Not sure since radar is down…

  23. runrain says:

    Interesting how these showers are hardly moving at all.

  24. schmit44 says:

    4/24/2014 Oregon (All) Temperature Summary

    Warmest:
    High:70 at NYSSA(2172 ft)
    Low: 57 at JUNIPR(359 ft)

    Coldest:
    High:32 at Rim(7050 ft)
    Low: 18 at MT. HOWARD (7910 ft )

    Largest Diurnal Change: 29 degrees
    NYSSA (70/41 ) (2172 ft )

    Heaviest Rainfall:
    2.45″ at EW4856 Brookings(1365ft)
    2.27″ at EW4806 Grants Pa(942ft)
    2.00″ at LITTLE MEADOWS(4000ft)
    1.93″ at YELLOWSTONE MTN.(3080ft)

  25. Rob - Southeast Portland says:

    10:57 PM Update
    Convective Outlook
    Valid: 4/25
    Model: 21 z SREF(Observed 00z – 03z )

    SBCAPE: 250-400J/kg
    MLCAPE: 100-200J/kg
    MUCAPE: 250-400J/kg
    LIFTED INDEX: Zero to -1
    MID-LEVEL LAPSE RATES: 7.5C/km
    EFFECTIVE SHEAR: 5-10kts
    0-6KM BULK SHEAR: 20-30kts
    PWAT: .35″
    500MB TEMP: -30c to -32c
    EQL LEVEL TEMP: -22c
    24 HOUR CALIBRATED T-STORM PROBABILITY: 30-40%

  26. High Desert Mat says:

    Except for JJ’s you know what!! Jk

  27. JJ78259 says:

    Having friends over from Portland for San Antonio’s Fiesta 93 and sunny out they are enjoying pool and warm weather. Last week in the Eagleford Shale area I got hit with 2 inch hale in big thunderstorm in my new company truck thank God for paintless Dent removal like it never happened except for the company’s $800. We don’t have marble sized hail here everything is bigger in Texas!

  28. Paul D says:

    No 80’s! We get enough of them in July and August

    • pappoose in scappoose says:

      Uh oh! Prepare yourself for the hate mail!

    • Boydo3 N. Albany says:

      Not me, I love it!

    • W7ENK says:

      80s in April are the best! Prepares your body for the 90s in June and the occasional 100+ in July and August!! It’s going to be so nice… 🙂

    • Boydo3 N. Albany says:

      One of my favorites is when you walk out of the air conditioned super market into that 100 deg afternoon in the summer…ah.
      But you gotta hurry to make sure the beer you just bought doesn’t warm up too much before it gets home and into the fridge 🙂

  29. Larry says:

    Looking forward to warm!

  30. Jason Hougak says:

    Yes, I do love this exciting weather. Timberline has had 21″ in the past 72 hours. If only the mountain could stay white year round with fresh pow!
    Heavy rain falling, the plants are sucking it all up… so are the lawns. They’ll all be due for a good mow when that sun shows next week. Personally I wish this weather could stay. I’d love some active spring thunderstorm pattern to develope.

    • pappoose in scappoose says:

      This is the best we can do presently.
      Remove the burrito wrappers from your vehicles!

      NATIONAL WEATHER SERVICE PORTLAND OR
      218 PM PDT THU APR 24 2014

      THE MAIN UPPER TROUGH/LOW COMES ONSHORE FRIDAY WITH ITS ASSOCIATED COLD POOL ALOFT. TEMPS AT 500 MB FALL TO BETWEEN MINUS 30 AND MINUS 32 DEGREES C. THIS SHOULD GIVE A DECENT CHANCE OF THUNDERSTORMS FRIDAY AFTERNOON AND EVENING. SOME OF THESE SHOWERS WILL LIKELY BE HEAVY AT TIMES.

  31. alohabb says:

    Marble sized hail falling in Tigard!

  32. Rob - Southeast Portland says:

    A few places along the Coast have exceeded 50-60mph gusts. Not bad as we near late April.

    Mary’s Peak 4137′ G 70
    Cape Meares 1421′ G 65
    Mt. Hebo 3160′ G 56
    Naselle Ridge 2009′ G 55
    Newport – Yaquina Bridge G 53
    Astoria – Megler Bridge G 51
    Pacific City G 50
    Other locations
    Three Corner Rock 3450′ G 63

  33. schmit44 says:

    4/23/2014 Oregon (All) Temperature Summary

    Warmest:
    High:64 at ECHO( 683 ft) & JUNIPR(359 ft)
    Low: 50 at PACCTY-2 Pacific(28 ft) & OCNSID Oceanside(22 ft)

    Coldest:
    High:31 at CW7477 Lostine(7002 ft) & Rim(7050 ft)
    Low: 20 at FISH CREEK (7900 ft )

    Largest Diurnal Change: 35 degrees
    Baker City Munic (56/21 ) (3373 ft )

    Heaviest Rainfall:
    3.50″ at NORTH FORK(3120ft)
    3.05″ at EW4856 Brookings(1365ft)
    2.74″ at TIDEWATER(2035ft)
    2.61″ at RED MOUND(1753ft)
    2.57″ at SOUTH FORK(2257ft)
    2.52″ at CEDAR(2220ft)
    2.48″ at HEBOWX Mt. Hebo(3160ft)
    2.46″ at YELLOWSTONE MTN.(3080ft)

  34. Mike (Orchards 255') says:

    We deserve some warm weather. I actually would like the idea of cold troughs followed by thermal troughs or vice versa. Fun on both sides of the weather spectrum.

  35. Rob - Southeast Portland says:

    First.

    Thanks, Mark. I can’t wait for the 80’s. I hope we see many more thermal troughs like this in May and June.

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