Quick Answer
In snowy conditions, emergency water sources include snowmelt, ice, and frozen streams or rivers. Collecting and purifying water from these sources requires specific techniques to avoid contamination. Properly treated water is essential for preventing dehydration.
Collecting Snowmelt
Collecting snowmelt is a reliable method for obtaining water in snowy conditions. Start by finding a shaded area to minimize snowmelt rate and prevent it from freezing back overnight. Dig a shallow pit, about 1-2 feet deep, and place a clear plastic sheet or tarp in the bottom. Weigh down the edges with rocks, and place a container or bag to collect the meltwater. This method can produce up to 1 liter of water per hour, depending on temperature and snow conditions.
Purifying Water from Ice, Streams, and Rivers
If you need to collect water from ice, streams, or rivers, make sure to purify it before consumption. Use the “boil method” by bringing the water to a rolling boil for 1-3 minutes, depending on the altitude and contaminants present. Alternatively, you can use a portable water filter, such as a LifeStraw or Sawyer Mini, which can remove bacteria, viruses, and other contaminants. If you don’t have a filter, you can also use the “solar disinfection” method, where you place a clear plastic bottle in direct sunlight for several hours, allowing UV rays to kill bacteria and viruses.
Additional Considerations
When collecting water in snowy conditions, be aware of potential hazards such as crevasses, avalanches, and waterborne pathogens. Always assess the risk and take necessary precautions to stay safe. Additionally, consider the energy and time required to collect and purify water, and plan accordingly to ensure you have a reliable source of hydration.
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