[pianotech] How does fog freeze?

[Susan Kline]

I remember ice fog from my time in Saskatchewan and Manitoba, Terry. At 
night outside town one could look back and see pillars over every light, 
which were also the same color as whatever the light happened to be. The 
ice particles refract like that at night.

Don't see much of that here. (Well, NEVER would be more accurate.) 
Sometimes we get black ice on the roads when the temperature has been 
close to freezing, and it's damp weather. Very dangerous. Sometimes we 
get icicles and hoar frost, but often years apart.

Merry Christmas, all

Susan

On 12/24/2010 10:35 PM, Terry Beckingham wrote:
> Actually fog that results in  hoar frost is not frozen until it lands 
> on or condenses on objects like the trees shown by David. There is, 
> however, ice fog, that is composed of very minute particles that are 
> already frozen. Ice fog does  no create hoar frost. It occurs at 
> considerably colder temperatures. It is fairly common up here in the 
> wilds of Northern Manitoba. (I was a meteorological tech in a former 
> life).
>
> Happy holidays to all.
>
> Terry Beckingham RPT
>