Alerts the public when large avalanches are certain or very likely in many areas and when unusually dangerous avalanche conditions exist.

Avalanche Warnings (AVW’s) are the most severe in the suite of avalanche alert products. The intent of an Avalanche Warning is to save lives by alerting the public when large avalanches are very likely or certain in many areas and when unusually dangerous avalanche conditions exist. For example, Avalanche Warnings are issued when a significant avalanche cycle is expected or if the danger is expected to reach High or Extreme. Warnings are not only intended to reach normal forecast users but they are also disseminated through various emergency alert systems to inform people who might otherwise be unaware of the very dangerous avalanche conditions.