I get holding your thumb on the scale a bit, but. . . - Page 6

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  1. #51
    Quote Originally Posted by Whitey View Post
    Thank you. I am not debating the elevation effect on snow fall. But if you are going to tell me that this last storm created a 10" elevation differential over 2600', then I am gonna tell you I'm not buying that. And I just so happened to be at a mountain that has the same top elevation as SB and 2K in vertical and there is no way there was 10" differential base to top. Maybe 3-4. 10? No, not even half that.
    You're comparing apples to oranges. WTF does Jay being the same top elevation as SB have to do with anything? And the 10" difference wasn't over 2K vertical. It was over more than 3K vertical because it was the difference between the valley snowfall and summit snowfall. The SB base is 1500'. The valley is around 900'. Difference between summit and valley is 3100'.

    The snowfall difference between the summit of SB and the base of SB was 6" (which would be the proper figure to use to compare to your base to top 3-4" differential you mention at Jay). The difference between the base of SB and valley was another 4". Given the FACT that the valley was AT OR ABOVE freezing ALL DAY on Friday while the base of the mountain was just at or slightly below freezing and the summit was a good 5-10 BELOW freezing all day, I really don't understand how you fail to see a 10" summit to valley difference being possible. Those temperature differentials should easily show you how the snow ratios would be drastically different from valley to summit. Do you not at all understand the role temperature plays in snow ratios?

  2. #52
    Quote Originally Posted by AdironRider View Post
    I already agreed with you that you will see differences, but nowhere near a foot on the East Coast. Again, that is a rare event even in Jackson, with 4100 vertical relief from the valley floor.



    Maybe a couple times on Washington, but no way on Sunday River.
    This isn't true at all. There are plenty of times when Mansfield stake has had 12" & there's rain to a dusting in town of Stowe. It's happened a few times this season alone. It tends to happen more in Fall/Spring with those marginal temps than in the dead of winter.

  3. #53
    So like, exactly what I said.
    Live Free or Die
    137 days 08-09
    16 days 09-10

  4. #54
    Bingo- the marginal temps are the key here. It takes less variability in temperature to produce a higher variability in snow accumulation. Think of it this way, temperature changes about 5.4 degrees per 1000' of elevation change. This is in dry conditions. It is reduced to 3.3 degrees in a precipitation event. For sake of argument, temp difference between top of the mountain and down in the valley could be 10 degrees (3000 ft elevation differential times 3.3 deg/1000'). If it is 33 down in the valley, it could be 23 at the summit. Ratio goes from 5/1 and approaches 15/1. If we assume it is 12/1 at the summit, 10" below nets us 24" at the summit (or 2.4x). This assumes same water content for valley and summit. Often, more precipitation falls at the summit even as rain so this will push this up even more.

  5. #55
    machski's Avatar
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    Quote Originally Posted by AdironRider View Post
    I already agreed with you that you will see differences, but nowhere near a foot on the East Coast. Again, that is a rare event even in Jackson, with 4100 vertical relief from the valley floor.

    Maybe a couple times on Washington, but no way on Sunday River.
    Well, just stay out west. It happens out here too, even at Sunday River occasionally.

    Sent from my Pixel 3 using AlpineZone mobile app

  6. #56
    Quote Originally Posted by speden View Post
    I don't think Zand should be allowed to go to Jackson Hole unless this happens.
    For 10 years I've been getting a FATAL ERROR message every single time I've tried posting pictures to this forum. If I ever figured out how to actually get it to work I'd load this place with pictures. People on Facebook are sick of me posting skiing pictures lol
    2003-2004: 21; 2004-2005: 27; 2005-2006: 31; 2006-2007: 31; 2007-2008: 38; 2008-2009: 43; 2009-2010: 42; 2010-2011: 46; 2011-2012: 33; 2012-2013: 26 2013-14: 18; 2014-15: 17; 2015-16: 7; 2016-17: 14; 2017-18: 23; 2018-19

    2019-20 days - 7
    Wachusett: 11/15, 11/21, 12/5
    Stratton: 11/26; Mt. Snow: 12/3
    Killington: 12/8; Sunday River: 1/21

  7. #57
    Quote Originally Posted by cdskier View Post
    You're comparing apples to oranges. WTF does Jay being the same top elevation as SB have to do with anything? And the 10" difference wasn't over 2K vertical. It was over more than 3K vertical because it was the difference between the valley snowfall and summit snowfall. The SB base is 1500'. The valley is around 900'. Difference between summit and valley is 3100'.

    The snowfall difference between the summit of SB and the base of SB was 6" (which would be the proper figure to use to compare to your base to top 3-4" differential you mention at Jay). The difference between the base of SB and valley was another 4". Given the FACT that the valley was AT OR ABOVE freezing ALL DAY on Friday while the base of the mountain was just at or slightly below freezing and the summit was a good 5-10 BELOW freezing all day, I really don't understand how you fail to see a 10" summit to valley difference being possible. Those temperature differentials should easily show you how the snow ratios would be drastically different from valley to summit. Do you not at all understand the role temperature plays in snow ratios?
    What he said.
    2018/19 = 36
    2017/18 = 37
    2016/17 = 31
    2015/16 = Depressing
    2014/15 = 28
    2013/14 = 27

  8. #58
    Smellytele's Avatar
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    Yawn


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    2010/11 - 30days 2011/12 - 29days 2012/13 - 40 days 2013/14 - 39 days 2014/15 - 42 days
    2015/2016 -27 days 2016/17 - 51 days 2017/18 - 57 days 2018/19 - 75 days

  9. #59
    Quote Originally Posted by 180 View Post
    Plattekill reported 18". I would say it was at least that much up high. Also, Look at the Burke trip report, looks legit to me https://forums.alpinezone.com/showth...-19-Powder-Day
    California glades up top was more like 2’ Access rd was like 6”1CD5A058-9917-4093-B27E-E19E8016B433.jpg



    Edit...Just once I’d like to see a photo post the right way WTF ?
    Groundhog day lets go skiing !

  10. #60
    JimG.'s Avatar
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    I had an awesome time at K Mon Tues. And I didn't even get to ski any fresh snow, busy Sat Sun.

    I guess something must be wrong with me.

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