Quick Answer
If your snow cave starts to melt, move to higher ground or a more stable location with deeper snow and better insulation, ideally within a few hours to avoid water accumulation and potential collapse.
Assessing the Situation
To determine the best course of action, inspect your snow cave for signs of melting, such as water seeping through the walls or roof, and assess the structural integrity of the shelter. Check the temperature and humidity levels outside and inside the cave to gauge the rate of melting. If the melting is rapid or the cave is unstable, prioritize moving to a safer location.
Finding a New Shelter Site
Look for a spot with deeper snow (at least 3-4 feet) and a more stable temperature profile. Avoid areas with direct sunlight, steep slopes, or nearby water sources that could exacerbate melting. Consider building a new snow cave in a location with existing snowdrifts or a natural windbreak to reduce wind erosion. Measure the depth and consistency of the snow to ensure it can support the weight of the new shelter.
Building a New Snow Cave
When constructing a new snow cave, use a shovel or your hands to remove the top layer of snow, creating a stable base. Pack the remaining snow tightly around the walls and ceiling, using techniques like ‘stitching’ or ‘piling’ to create a solid structure. Ensure the entrance is narrow and angled to prevent wind-driven snow from entering. Build the cave at least 6-8 inches deeper than the original to account for settling snow and prevent collapse.
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