Forecast Expired - 04/01/2021

Above 2,000ftConsiderable

1,000 to 2,000ftModerate

Below 1,000ftLow

The Avy Rose shows the forecasted danger by elevation and aspect.

It adds more detail about where you are likely to find the dangers mentioned in the forecast. The inner circle shows upper elevations (mountain top), the second circle is middle elevations, and the outer circle represents lower elevations.

Think of the Rose as a birds-eye view of a mountain, looking down from above. The rose allows our forecasters to visually show you which parts of the mountain they are most concerned about.


Degrees of Avalanche Danger

Avalanche Problems

Problem 1

Storm Snow:


  • Almost Certain
  • Very Likely
  • Likely
  • Possible
  • Unlikely


  • Historic
  • Very Large
  • Large
  • Small


  • Increasing
  • Steady
  • Decreasing

Avalanche Activity

The highway avalanche hazard is MODERATE.

The avalanche hazard may increase Tuesday.


After a relative drought of activity, things are getting busier. We’ve received over a ¼ inch of water today, with wind loading western aspects and the freezing line climbing. Weather models suggest another inch or so of water into Wednesday, with moderate wind loading western aspects. This could translate into a foot or more of new snow in the upper mountains. Also, increasing daylight is bringing increasing daytime temperatures. Some avalanche activity should be expected, though it should be limited to new snow at this time. The hazard may increase Tuesday.