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The ten contributory factors to direct action avalanches 
    This unit covers the second factor involved in avalanche formation, weather.  Specifically, we will discuss the 10 contributory factors to direct action (naturally triggered) avalanches.  These factors include:
    Old Snow Surface
    New Snow Depth
    New Snow Type
    Old Snow Depth
    Density (Total Water Content)
    Snowfall Intensity
    Precipitation Intensity
    Wind Direction and Speed
  Settlement of New Snow
    By the end of this unit, you should be able to explain how each of these factors contributes to avalanche hazard. f
Photo: Mike Jenkins
Copyright 2008, by the Contributing Authors. Cite/attribute Resource . factcouraud. (2007, May 08). Weather. Retrieved January 07, 2011, from Free Online Course Materials — USU OpenCourseWare Web site: This work is licensed under a Creative Commons License Creative Commons License