Monday, January 2, 2012

Cold Snow


About half an inch of snow and 28 below at 8am on Keystone Ridge. Here's how it snows at these cold temperatures. The morning sounding shows the deep cold air (-30C and colder) is about 400 meters thick. The snow producing clouds have a temperature around -20C to -23C. This is reflected in the sand-like consistency of the snow this morning.

3 comments:

  1. So what sort of snow ratio's did this produce? It seems like they were usually around 10:1 in this kind of situation if I remember correctly.
    Matthew

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  2. Matthew,

    from the RTP this morning, the ratios were 10-1 or a bit lower. Pretty standard for this set-up, though I was expecting the warm air to make it a bit lower and was quite surprised to get up this morning and see it 28 below here on the ridge. Caribou Peak did get to 4 below before cooling off again.

    Rick

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  3. Ok, sounds like what I was thinking. Thanks.
    Matthew

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