Use this page to view archived advisories. The table below shows the overall danger rating and the bottom line for the 20 most recent advisories. Click on the time and date link above each danger rating icon to view the full advisory for that day. Use the date chooser or the pager at the bottom to scroll through the older advisories.

E.g., Thursday, July 27, 2017
E.g., Thursday, July 27, 2017
E.g., Thursday, July 27, 2017
Date the advisory was published:sort descending Bottom Line
Click here to see the full advisory for 2017-04-07
April 7, 2017 at 7:01

HIGH avalanche danger exists in near and above treeline terrain with CONSIDERABLE danger in below treeline areas due to wind slabs and storm slabs. Natural and human triggered avalanches are very likely today. Dangerous avalanche conditions exist in the backcountry today. Travel in avalanche terrain is not recommended.

Click here to see the full advisory for 2017-04-08
April 8, 2017 at 6:59

CONSIDERABLE avalanche danger exists at all elevations today. Human triggered wind slab avalanches are likely on wind-loaded slopes and storm slab avalanches are possible in more sheltered locations. Dangerous avalanche conditions exist. Plan travel routes to avoid steep slopes where avalanche problems may exist. Evaluate snow and terrain carefully. If areas receive more snow and higher snowfall rates than forecasted, more avalanche danger could exist. 

Click here to see the full advisory for 2017-04-09
April 9, 2017 at 6:49

Considerable avalanche danger will exist at all elevations due to loose wet, wind slab, and wet slab avalanche problems.  Full sun with Intense solar radiation and rapid warming will deteriorate the bonds within our recent storm snow.  Widespread avalanches could occur with natural and human triggered avalanches likely.

Click here to see the full advisory for 2017-04-10
April 10, 2017 at 6:46

Very early this morning, avalanche danger is LOW for all elevations. From mid morning onwards, areas of MODERATE avalanche danger are expected at all elevations as loose wet avalanche problems develop in response to daytime warming. Instability will become increasingly widespread during the afternoon hours.

Click here to see the full advisory for 2017-04-11
April 11, 2017 at 6:47

Areas of MODERATE avalanche danger linger today above treeline due to the potential for yesterday's human triggered wind slab avalanche activity to continue. For near treeline and below treeline areas avalanche danger is LOW. Some areas with minor amounts of wet surface snow may exist today, but loose wet avalanche problems are not expected.

Click here to see the full advisory for 2017-04-12
April 12, 2017 at 6:52

For most of today, avalanche danger is LOW for all elevations. Following arrival of the incoming storm, avalanche danger will increase to CONSIDERABLE during the evening and overnight hours at all elevations. Dangerous conditions will exist in the backcountry tonight and tomorrow with wind slab and storm slab avalanche problems expected.

Click here to see the full advisory for 2017-04-13
April 13, 2017 at 7:00

MODERATE avalanche danger exists at all elevations today due to wind slabs on wind-loaded slopes and possible storm slabs in more sheltered terrain. Human-triggered avalanches are possible today. Evaluate the snowpack and terrain carefully to identify where avalanche problems may exist. Use this information to avoid areas with possible avalanche problems. If the storm ends earlier than forecasted and the sun comes out, rapid warming could accentuate these problems and also cause loose wet avalanche problems to form.

Click here to see the full advisory for 2017-04-14
April 14, 2017 at 6:55

Rapid warming caused by April sun and warm temperatures will cause the avalanche danger to rise to CONSIDERABLE today. Large human-triggered loose wet avalanches will be likely today if people venture onto slopes where wet snow exists. Natural loose wet avalanches will be possible. This warming will also weaken the lingering wind slabs making human-triggered wind slab avalanches possible. Avoid slopes where signs of warming or wet snow exist and slopes where wind slabs remain especially if they receive sunshine.   

Click here to see the full advisory for 2017-04-15
April 15, 2017 at 7:00

The avalanche danger will increase to MODERATE today as sun and warmer temperatures cause more rapid warming. Human-triggered loose wet avalanches will be possible. Some natural loose wet avalanches may also be possible in a few areas. Human-triggered wind slab avalanches may remain possible in complex or extreme terrain or on wind-loaded slopes where rapid warming weakens wind slabs.

Avoid slopes where signs of warming or wet snow exist and slopes where wind slabs remain especially if they receive sunshine.   

Click here to see the full advisory for 2017-04-16
April 16, 2017 at 6:59

MODERATE avalanche danger continues today at all elevations. Uncertainly exists in regards to the degree of loose wet avalanche problems today as well as lingering wind slab avalanche problems. Conservative decision making and conservative terrain selection are advised.

Click here to see the full advisory for 2017-04-17
April 17, 2017 at 6:47

MODERATE avalanche danger exists at all elevations due to a combination of wind slab and loose wet avalanche problems. Human triggered avalanches are possible today. Natural avalanches are unlikely but not impossible in isolated areas. Identify and avoid slopes where wind slab or loose wet avalanche problems may exist.

Click here to see the full advisory for 2017-04-18
April 18, 2017 at 6:52

MODERATE avalanche danger continues at all elevations due to ongoing wind slab and loose wet avalanche problems. Human triggered avalanches are possible today. Natural avalanches are unlikely but not impossible in isolated areas. Identify and avoid areas of potential wind slab and loose wet avalanche problems. A small chance exists that a rapid warming situation could occur this afternoon.

Click here to see the full advisory for 2017-04-19
April 19, 2017 at 7:00

As sun and warm temperatures cause rapid warming today, the avalanche danger will increase to CONSIDERABLE once last night's refreeze melts. Large human-triggered loose wet avalanches are likely today if people venture onto steep slopes where wet snow exists. Natural loose wet avalanches are possible. Some wet slab avalanches may also be possible today. The warming will weaken any lingering wind slabs keeping human-triggered wind slab avalanches possible today as well. Avoid slopes where wet snow or wind slabs exist.

Click here to see the full advisory for 2017-04-20
April 20, 2017 at 6:24

MODERATE avalanche danger exists today due to lingering wind slabs and loose wet avalanche problems that will form as the sun comes out and the day warms up. This afternoon's sunshine and warming may also weaken the lingering wind slabs. Human-triggered avalanches large enough to cause problems for backcountry travelers are possible today. Wet slab avalanches should remain unlikely today, but they are not impossible. Avoid slopes where wet snow or wind slabs exist.

Click here to see the full advisory for 2017-04-21
April 21, 2017 at 6:59

LOW avalanche danger this morning will rise to MODERATE avalanche danger as the day warms up. Loose wet avalanches will become possible again today on slopes where wet snow forms. While triggering a wind slab has become unlikely except in a few isolated places, cornice failures remain possible today especially as warming weakens the cornices. Avoid slopes where wet, unsupportable snow exists and complex or extreme terrain where isolated wind slabs may exist. Give all cornices a wide berth.  

Click here to see the full advisory for 2017-04-22
April 22, 2017 at 6:47

LOW avalanche danger early this morning will increase to MODERATE avalanche danger in response to daytime warming as the day progresses. Areas of loose wet avalanche problems are expected to develop on all aspects at all elevations today. Cornice collapse may continue to occur today, presenting an additional hazard to backcountry travelers.

Click here to see the full advisory for 2017-04-23
April 23, 2017 at 6:43

MODERATE avalanche danger exists this morning due to the potential for loose wet and wet slab avalanche problems. In areas that received little to no snow surface refreeze last night these problems are possible beginning early this morning. In areas where a refreeze did occur these avalanche problems will develop as daytime warming occurs, accelerating once cloud cover clears from the area today. Avoid travel in avalanche terrain once wet surface snow begins to loose supportability.

Click here to see the full advisory for 2017-04-24
April 24, 2017 at 5:43

General Spring Avalanche Statement

At the tail end of this historic winter, we have stopped issuing daily avalanche advisories for the 2016-2017 season. For more info explaining the chosen end date, click here. Avalanche activity will invariably occur this spring. Continued daily wet snow melt-freeze cycles and additional storm cycles will impact the forecast area. Some information and resources to aid in trip planning and decision making have been assembled on the advisory page.

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