Western Canada Snow Forecast Thread

Discussion in 'Alpine & Snow' started by Big Pink Bits, Oct 17, 2006.

  1. Big Pink Bits

    Big Pink Bits Hard Yards

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    Looks like there is a small system which could hit around Wednesday Thursday in Canada but snow levels at Whistler are likely to be a little high to produce anything unfortunately.

    Feel free to update this thread with your forecasts as the season progresses.
     
  2. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    The Western and coastal resorts/season dont start for another month and a half...
    It snows probably more often than it does'nt around this time of year.

    Falls will come and go, best chance of base building falls are a good 3-5 weeks away, typically.
     
  3. Big Pink Bits

    Big Pink Bits Hard Yards

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    hows this for a sizey low pressure

    [​IMG]
     
    #3 Big Pink Bits, Oct 18, 2006
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  4. skiflat

    skiflat Old n' Crusty

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    BPB: If that comes off Mammoth mountain will be DUMPED on
     
  5. Big Pink Bits

    Big Pink Bits Hard Yards

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    If that comes off the whole west coast will be blown to smitherines
     
  6. sir_rhyso

    sir_rhyso One of Us

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    It's 384 hrs away!!! Good luck to them but :fart:
     
  7. Taipan

    Taipan Old n' Crusty Ski Pass: Gold

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    Best thing i can say at the moment is a very nice trend (as expected) of ever lowering freezing levels.

    Looks just a matter of time till we get some good snow.
     
  8. Big Pink Bits

    Big Pink Bits Hard Yards

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    Bit of moisture on the way - could fall as rain still though.
     
  9. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    I dont know much about the opinion of the crew in the weather forum at the moment, but I absolutely love/enjoy watching the North American charts unfold.
    This week we will see four seasons in one week for Western Canada, with a good chance of snowfalls sub 1300m on Tuesday/Wednesday(possibly up to 10cm above 1400m) followed by a quick warming trend.

    Beyond the warmer weather we will see a typical 'Pineapple Express' system establish itself for Saturday, bringing the typical heavy falls to North-coastal BC. Falls in excess of 70mm daily.
     
  10. Big Pink Bits

    Big Pink Bits Hard Yards

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    whistler should see some snow tonight and over the next few days but freezing levels will remain fairly high and the snow will be confined to the top half of the mountain or so...
     
  11. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    Was the previous post read prior to your post? [​IMG]
     
    #11 POW_hungry, Oct 24, 2006
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  12. Big Pink Bits

    Big Pink Bits Hard Yards

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    Everyone is guilty of laziness every now and then [​IMG]
     
    #12 Big Pink Bits, Oct 25, 2006
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  13. main street

    main street Doing what I want. Ski Pass: Gold

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    Pardon the ignorance POW_hungry..... but what is a "pineapple express" system?..... ( anything that drops 70mm a day is good though..... I don't really care what it's called!!!) [​IMG]
     
    #13 main street, Oct 25, 2006
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  14. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    The 'pineapple express', from what I believe, is a colloquialism of Western Canada.

    It relates to the specific weather pattern which draws in warm moist weather from the tropics (south of Hawaii) causing significant precip for the mountainous coastline from Nor-West US up the coast to Nor-West BC.
    This particular system was very well pronounced in the 04/05 winter season (worst season in some 25 years).
    The name derives from the precipitation coverage and direction carried, often resulting in a jet stream driven thin line from SW to NW.

    The 'pineapple express' is influenced majorly by the interaction of jet streams, SST's and surface chart patterns.

    (I find it an extremely interesting weather occurance. That's my take on it, anyone else willing to add?)
     
  15. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    The following is only a slight example of the 'pineapple express' system.

    Outlined, is the pinching and feeding of the trough like feature, between the two high pressure regions in the Northern Pacific.

    [​IMG]
    [​IMG]
     
    #15 POW_hungry, Oct 25, 2006
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  16. main street

    main street Doing what I want. Ski Pass: Gold

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    Thanks POW !

    That last pic for Saturday certainly looks promising.....

    :cheers:
     
  17. Big Pink Bits

    Big Pink Bits Hard Yards

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    Ahh, the only problem with pineapple express systems is that they often bring rain - not snow

    Bring on the LOW freezing levels
     
  18. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    Well it's promising if your a duck... Deffintely no snow associated around that precip prog. As you can see on the thickness it is feeding warmer/moist air...
     
    #18 POW_hungry, Oct 26, 2006
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  19. Taipan

    Taipan Old n' Crusty Ski Pass: Gold

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    Hmm studying western canada systems is new to me.

    Not unusual first you get the rain and then you get the snow. Isnt that one of the probs with Whistler - being a bit closer to the coast.

    However looks to be very cold starting Sunday night + we have snow coming in as well Starting Sunday night on.

    Keep having to look at map time convert it to our time and then reconvert it back to canada time.

    I always seem to recall the 00Z is midnight = 10.00am that day in Australia which means 6.00pm the day before in Canada. (Happy to be corrected on that one.)

    [​IMG]


    and here is the moisture.

    [​IMG]


    and 24 hours later on Monday night.

    [​IMG]


    [​IMG]
     
    #19 Taipan, Oct 26, 2006
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  20. Big Pink Bits

    Big Pink Bits Hard Yards

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    how do you know from those maps whether the moisture will be snow or rain? is it north of the 540 = snow?
     
  21. Big Pink Bits

    Big Pink Bits Hard Yards

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    Ok I answered my own question

    The 540 line is highlighted, since this line is often used as a rule of thumb to indicate the division between rain and snow for low terrain. When there is precipitation where the thickness is below 540dam, it is generally snow. If the thickness is above 540dam, it is usually rain (or sleet if the air next to the surface is below freezing).
     
  22. Taipan

    Taipan Old n' Crusty Ski Pass: Gold

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    If the resort is further north then the 540 line and over about 6000 feet then it shouldnt rain, but instead snow.

    Now that is pretty rough guide because in fact it can snow further south.
     
  23. Big Pink Bits

    Big Pink Bits Hard Yards

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    Whats with the high freezing levels at the moment? When do they usually start falling to the valley bottom?
     
  24. Scholesy

    Scholesy First Runs

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    BPB, Freeze levels are tipped to hit 0 early next week. then rise slightly to 600 - 700m. sadly no moisture (according to snow-forecast.com)
     
  25. Big Pink Bits

    Big Pink Bits Hard Yards

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    snowed to the village at whistler today
     
  26. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    Typically during the last week of Nov and during the start of Dec, you will see snow bearing systems bring snow down into the township.
    But much like most othe resorts Whistler village has seen it's far share of Valley falls in Autumn and predominately into spring.

    And FYI, Whistler Village sits around 6-700m AMSL.
     
    #26 POW_hungry, Oct 30, 2006
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  27. Big Pink Bits

    Big Pink Bits Hard Yards

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    Lots of moisture on the way for Western Canada starting about Thursday, Friday, Saturday but again freezing levels look to be too high with this one...
     
  28. BrumbyJack

    BrumbyJack First Runs

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    Maps please [​IMG]
     
    #28 BrumbyJack, Oct 31, 2006
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  29. Big Pink Bits

    Big Pink Bits Hard Yards

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    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
     
    #29 Big Pink Bits, Oct 31, 2006
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  30. BrumbyJack

    BrumbyJack First Runs

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    Gee Oregon is going to get some rain [​IMG]
     
    #30 BrumbyJack, Oct 31, 2006
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  31. Big Pink Bits

    Big Pink Bits Hard Yards

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    All is normal in the Pacific Northwest then [​IMG]
     
    #31 Big Pink Bits, Oct 31, 2006
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  32. gortonator

    gortonator One of Us

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    snow forecast to 4000ft in Washington Cascades tonight. hope it doesn't get washed away over weekend. The storm track is lining up nicely tho :-}
     
    #32 gortonator, Nov 2, 2006
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  33. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    Steady onshore flow from Sunday onwards. Looks to be very warm to begin with (as it does have alot of SW in it). Very heavy rain for SW BC for Sunday/Monday.
    Tuesday should see moderate snowfalls lowering from ~2500m down to around 1600m.
    Further lowering of freeze levels into mid next week.
     
  34. Big Pink Bits

    Big Pink Bits Hard Yards

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    Whistler could see some snow early while the freeze levels are still low but will quickly turn to rain. Might get some snow Tuesday or Wednesday of next week.... hope so!
     
  35. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    Was that to annoy me? [​IMG]
     
    #35 POW_hungry, Nov 3, 2006
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  36. Big Pink Bits

    Big Pink Bits Hard Yards

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    Pretty much hahahahhahahah settle pettle. [​IMG]
     
    #36 Big Pink Bits, Nov 3, 2006
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  37. Big Pink Bits

    Big Pink Bits Hard Yards

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    p.s. Snowing in Whistler at the moment.
     
  38. Big Pink Bits

    Big Pink Bits Hard Yards

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    Warnings
    Whistler
    10:51 PM PST Thursday 2 November 2006
    Snowfall warning for
    Whistler issued

    Snowfall accumulation of 15 cm by midday Friday.


    A low pressure system is giving locally heavy rain to the south coast with snow at Whistler. By 10 PM about 6 cm of snow has been reported in the Whistler area. Another 10 cm of snow can be expected for this region by midday Friday. Rainfall amounts of 50 to 70 mm are expected for the Greater Vancouver western Fraser Valley and Howe Sound by Friday evening.
     
  39. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    Moderate to Heavy falls over night above 1600m.
    Looks to be around 15-20cm of fresh above this elevation. Temps creeping up. Freeze levels will rise to 2500m tonight. Moderate snowfall down to 1100 by Wednesday. Possibly up to 15-20cm.

    Beyond that I really like the look of Saturday. With some solid falls expected above 1100m, brought in from a strong WNW onshore flow.
     
  40. Big Pink Bits

    Big Pink Bits Hard Yards

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    Sounds like good news to me [​IMG]
     
    #40 Big Pink Bits, Nov 6, 2006
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  41. Big Pink Bits

    Big Pink Bits Hard Yards

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    Looking more and more like whistler could get a reasonably large amount of snow over the weekend/early next week. Possibly even more than first anticipated. What do you reckon pow_hungry ?
     
  42. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    This is what Canada's met service has to say.
    [​IMG]
    Personally I think it is a little ambitious in terms of snowfall amounts, however still on track for some good cold pools and moisture feeds with the WNW flow.

    It will snow from Friday night through to next Tuesday atleast.
    Freeze levels dont look to bad with snow above ~1150m during this span (slight rise of FL on Monday but set to fall by Monday night).
    15-20cm each day from Saturday through to Monday with a new system bringing heavier falls on Monday evening.

    Here's to a great season at WB! :cheers:
    I think this will get the lift company opening up terrain sooner than their start dat of 23ed Nov.
     
    #42 POW_hungry, Nov 9, 2006
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  43. Big Pink Bits

    Big Pink Bits Hard Yards

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    Agree. If it comes off it is certainly a season opener!
     
  44. Born2ski

    Born2ski Part of the Furniture

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    Well, doesn't this system hitting BC look beautiful ? [​IMG]
    [​IMG]
     
    #44 Born2ski, Nov 11, 2006
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  45. Big Pink Bits

    Big Pink Bits Hard Yards

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    hell yeah. 1 week till im there
     
  46. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    Next Tuesday night, Wednesday will be the next big pulse for snowfalls. Looks to be yet another foot to fall above 850 metres.
    Up until then freeze level temps will return to around the 1700m mark with some VERY heavy snow above this level.
    This is the best base forming weather!!
     
  47. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    hrmm, just as I suspected! [​IMG]
    Whistler has announced the earliest peak chair opening ever and the valley cams show ridable top to bottom.
    If you in Western Canada over the next week, pack your thermals, it's going to VERY cold, especially with inversions.
    Vancouver will see snow downtown (only light as it is somewhat dry), this is a very early season...
     
    #47 POW_hungry, Nov 24, 2006
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  48. snowishing

    snowishing Hard Yards

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    Music to my ears POW
     
  49. bogong_flyer

    bogong_flyer First Runs

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    Its actually been puking in Vancouver....

    [​IMG]

    [​IMG]
     
    #49 bogong_flyer, Nov 28, 2006
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  50. POW_hungry

    POW_hungry Part of the Furniture Moderator Ski Pass: Gold

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    Up to 19cm around Vancouver, they are suffering from a big inversion tonight with temps down to -11C.
    [​IMG]
    [​IMG]
     
    #50 POW_hungry, Nov 29, 2006
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