I am sure you know the frost well, and more now during winter. But do you know which dangers they have linked to snow?
The frost is formed at night, by the drop of temperature and the condensation of water on the surface (in this case, on the snow). This water can come from the air or the lower layers of snow, warmer than the surface.
Frost is therefore not a type of snow, but it is involved in snow phenomenons, as it influences the behavior of the snow cover.
Usually the frost disappears during the day, in the daytime heat. But if it does not, and the process is repeated for several days, a separate layer can form in the snow cover, which is called snow crust, tremendously hard and slippery.
If it subsequently snows on top, we find ourselves in a very dangerous situation whenever we walk on sloping terrain. It may seem that snow is ideal for a walk, but all the soft snow could yield due to our weight and it may happens a snowslide.
It is not very common to find frosts that crystallize so much in the Cantabrian Mountains. Although frosts are not uncommon, winds, daytime temperatures and the absence of many anticyclonic days make it rare to see frosts like those in the photos.
They are really cool images, but remember that snow can be very beautiful and dangerous at the same time. So, it is so important, whenever you like to gor for a walk in a snowy landscape, just go to a flat area, or in the company of professionals.
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