Visibility

- Visibility is an important factor you need to consider when skiing. Poor visibility will cause dangerous situations like colliding with obstacles. Visibility on mountain slopes can be reduced due to a number of factors associated with cold fronts, and there are some reasons: Heavy snowfall, Blowing snow, Clouds and fog and Blizzard conditions.

Avalanche

There are two main types: loose-snow avalanches and slab avalanches.

loose-snow avalanches: Even though this type of avalanche is not usually able to bury people, it will probably knock you off your feet and carry you downhill. It begins at a single point, gathering more loosely-bonded snow crystals from the surface of the snowpack as they descend, gradually fanning out. 

slab avalanches: This avalanche occurs when a layer somewhere beneath the surface layer fails, and the cohesive layer above it fractures into a block and slide downhill. This kind of avalanche is very likely to bury you!

Extreme Weather Conditions

Unseasonably warm and cold temperatures have many associated hazards ranging from heat stroke to dehydration, to frostbite, to avalanches.

Warm temperatures：Warm temperatures for skiing are typically anything above 5°C. It's dangerous because of sunburn, Hyperthermia and heat stroke will occur.

Cold temperatures：Cold temperature hazards can cause frostbite and hypothermia.