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• An avalanche is a rapid downward flow of snow from a mountainside. An avalanche occurs when an area of snow dislodges from the mountain and begins to descend. It can be caused by a variety of factors from unstable ice layers to loud sounds in areas of heavy snowfall.

• Fast Facts

  1. Responsible for more than 150 deaths annually, worldwideNational Snow and Ice Data Center: Avalanche Awareness
  2. Average U.S. victim is male, age 31National Snow and Ice Data Center: Avalanche Awareness
  3. Primarily occur in the winter, from December through AprilNational Snow and Ice Data Center: Avalanche Awareness
  4. About 1/3 of all avalanche fatalities in the U.S. occur in ColoradoNational Snow and Ice Data Center: Avalanche Awareness
  5. Snowfall of more than a foot creates prime avalanche conditionsNational Snow and Ice Data Center: Avalanche Awareness
  6. Forests help reduce avalanche risksNational Snow and Ice Data Center: Avalanche Awareness
  7. Large avalanches may release as much as 300,000 cubic yards of snowNational Snow and Ice Data Center: Avalanche Awareness

• Avalanche Precautions

  When going into avalanche territory, it is advisable to check with the mountain or park service center to get the most updated avalanche warning status. Never go into the back country alone. Always take a buddy with you. Stay alert for snow cracks, shady areas and pay attention to the incline of the slope as well. Utilize United States Forest Service training to test the snow pack for stability.How Stuff Works: How Avalanches Work

• Related Mahalo Pages

  Earthquakes | Landslides | Volcanoes | K2 Avalanche Deaths | French Alps Avalanche

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