cause you'll sink into the snow
Because of pressure. High heels gave small soles. The full weight on a small surface gives a high pressure while the same weight on a larger surface gives a lower pressure. It's like the difference between poking your finger into the sand or trying to push your fist into the sand.
The woman standing in high heels will exert more pressure on the ground as the pressure is determined by the force applied over a given area. Since the high heels have a smaller surface area compared to work boots, the force exerted by the woman's weight will be concentrated on a smaller area, resulting in higher pressure on the ground.
I would think that the woman in high heels would exert more pressure per square inch. All that 50 kg of weight is concentrated onto the small heels of the high heels, whereas with the boots it's spread out around the area of the boots, which significantly lowers the pressure. Put another way, if you go out and try to walk on extremely crunchy snow with the boots, they act like a pair of liferafts on water, in a sense, or at least for a second or two. With the heels, they sink right through the snow.
Mushy snow is wet, heavy snow that has started to melt and has a high water content. It tends to be sticky and clumpy, making it difficult to ski or build snowmen with.
Use your low beams or fog lights. Fog or snow will reflect high beam light back in your eyes making it more difficult to see.
They both exert the same amount of force theoretically, it's just that the force exerted on the floor by the high-heel spike is more concentrated. High heel - less surface area, more concentrated force. Work boot - more surface area, less concentrated force.
Snow is slippery.
It is difficult because there are many avalanches there, it is high and someone can fall very easily and injure them self cause the ice snow!!
It melted from the snow :)
Blizzard conditions would make photographing snow crystals difficult.
You don't want to use high beams in foggy weather or snow. It actually makes it more difficult for you to see as the light reflects off the snow or fog.