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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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(Weak connection to the "Too cold..:" thread)
I was looking for a snow christal morphology diagram in the net and found this one: http://www.its.caltech.edu/~atomic/s...ogydiagram.jpg to show that even though it isn't too cold for snow it can get too cold for dendrites ("the snowflake-shaped snowflakes"). Another thing is that at -35C the air contains very little humidity so very heavy snowfall is not possible. Elsewhere at the caltech site they say: "Q: Are snow crystals the same as frozen raindrops? A: No. Sometimes raindrops do freeze as they fall, but this is called sleet. Sleet particles don't have any of the elaborate patterns found in snow crystals. Snow crystals form when water vapor condenses directly into ice, which happens in the clouds. The beautiful snow crystal patterns form as the crystal grows." Is this a difference between Queen's English and Bush English ? I've seen some people in this ng referrring to synop code 68 as "sleet" ? otherwise, I recommend browsing the caltech site so you get at least a virtual white chritmas... (Here at Vantaa we have -14C and it's snowing again.) Best, Elena |
#2
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Another thing
is that at -35C the air contains very little humidity so very heavy snowfall is not possible. The snow may well have been formed at temperatures much closer to 0°C by the forced ascent of "warm" air and could well be heavy, even if the air it falls through is much colder. Is this a difference between Queen's English and Bush English ? I've seen some people in this ng referrring to synop code 68 as "sleet" ? "Sleet" in Britain is a mixture of rain and snow, i.e. partially melted snow. It's very common. Don't use Bush English - you'll go mad and could get detainified under some Mental Healthitude Act or other. Tudor Hughes, Warlingham, Surrey. |
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