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., Sunday, March 26, 2017
E.g., Sunday, March 26, 2017
E.g., Sunday, March 26, 2017
Date the advisory was published:sort ascending Bottom Line
Click here to see the full advisory for 2017-03-26
March 26, 2017 at 6:53

Moderate avalanche danger exists due to wind slab and loose wet avalanche problems.  Wind slabs continue to exist on steep slopes in near treeline and above treeline terrain with new wind slab formation expected late this afternoon.  Loose wet avalanche activity will be possible at all elevations as rapid warming and/or rain occur today.  Human triggered avalanches remain possible. 

Click here to see the full advisory for 2017-03-25
March 25, 2017 at 6:52

Moderate avalanche danger will exist in near treeline and above treeline terrain due to wind slab avalanche problems.  Loose wet avalanches could develop today at all elevations especially if we receive more solar radiation than forecasted.  Human triggered avalanches are possible.  Evaluate snow and terrain carefully, identify features of concern.

Click here to see the full advisory for 2017-03-24
March 24, 2017 at 6:45

Avalanche danger will increase to CONSIDERABLE today as a storm system moves through the forecast area. Wind slab and storm slab avalanche problems are expected today. Loose wet avalanche problems are also a possibility. A gradual increase in snowpack instability is expected this morning, transitioning to a rapid increase in snowpack instability this afternoon. Dangerous avalanche conditions will form today. Identify and avoid potentially unstable slopes.

Click here to see the full advisory for 2017-03-23
March 23, 2017 at 6:58

MODERATE avalanche danger will exist on all aspects today due to rapid warming weakening the recent snow. Widespread loose wet avalanches will be likely today. The warming will also weaken existing slabs making human triggered wind and wet slab avalanches possible today as well.  Evaluate the snowpack and terrain carefully to identify where avalanche problems may exist and plan a route that avoids the potential avalanche problems. 

Click here to see the full advisory for 2017-03-22
March 22, 2017 at 6:49

MODERATE avalanche danger at all elevations is expected today for the vast majority of the forecast area. Isolated, highly localized areas could have greater danger. Wind slab, loose wet, and storm slab avalanche problems are expected today. Identify suspect slopes and avoid areas of concern.

Click here to see the full advisory for 2017-03-21
March 21, 2017 at 6:44

Areas of CONSIDERABLE avalanche danger are expected today at all elevations due to a combination of wind slab, storm slab, loose dry, and loose wet avalanche problems. Dry snow avalanche problems are expected above 7,500' to 8,500' today with wet snow avalanche problems below 7,500' to 8,500'. Dangerous avalanche conditions will exist in the backcountry and areas of instability are expected to form rapidly both above and below treeline.

Click here to see the full advisory for 2017-03-20
March 20, 2017 at 6:44

In below treeline terrain, Low avalanche danger will quickly rise to Moderate avalanche danger as daytime warming occurs and loose wet avalanche activity becomes possible.  Low avalanche danger will exist in near and above treeline terrain through the day.  Avoid traveling in areas below large cornices and glide cracks.  Avalanche danger is expected to rise tonight and tomorrow as the next incoming storm impacts our area.

Click here to see the full advisory for 2017-03-19
March 19, 2017 at 6:47

Low avalanche danger exists at all elevations throughout the forecast area.  Loose wet avalanche activity should remain limited today.  If we receive more rain or more intense sun than forecasted, loose wet avalanches could become possible.  Avoid travel in areas below large cornices and glide cracks.

Click here to see the full advisory for 2017-03-18
March 18, 2017 at 7:00

LOW avalanche danger may only exist for a brief period early this morning due to little to no overnight refreeze. As the day warms up, the avalanche danger will quickly rise to MODERATE as loose wet avalanches become possible. Evaluate snow and terrain carefully and move to less steep slopes or change activities once the snow becomes wet and unsupportable. Avoid slopes below large cornices and glide cracks. 

Click here to see the full advisory for 2017-03-17
March 17, 2017 at 7:00

The avalanche danger will remain low for a brief period early this morning. As the day warms up, the avalanche danger will quickly rise to MODERATE as loose wet avalanches become possible. Evaluate snow and terrain carefully and move to less steep slopes or slopes with colder more frozen snow once the snow becomes wet and unsupportable. Avoid slopes below large cornices and glide cracks. 

Click here to see the full advisory for 2017-03-16
March 16, 2017 at 6:59

LOW avalanche danger exists this morning. The avalanche danger will increase to MODERATE as loose wet avalanches become possible due to daytime warming and intense spring sunshine. Evaluate snow and terrain carefully and move to less steep slopes or slopes with colder more frozen snow once the snow becomes wet and unsupportable. Avoid slopes below large cornices and glide cracks. 

Click here to see the full advisory for 2017-03-15
March 15, 2017 at 6:56

LOW avalanche danger exists today for all elevations. The rate of snow surface melt is expected to be slower today as compared to the past several days. Loose wet avalanches may still occur today, but instability is expected to be less widespread than earlier this week. Avoid travel on or below steep slopes with wet snow and no supportable surface crust.

Click here to see the full advisory for 2017-03-14
March 14, 2017 at 6:49

Early this morning, avalanche danger is LOW for all elevations. MODERATE avalanche danger will form quickly during the mid to late morning hours as loose wet avalanche problems develop at all elevations in response to daytime warming. Start early and exit avalanche terrain early. Avoid travel on or below steep slopes with wet snow and no supportable surface crust.

Click here to see the full advisory for 2017-03-13
March 13, 2017 at 6:50

Low avalanche danger will exist this morning.  As daytime warming occurs, avalanche danger will quickly rise to Moderate due to a loose wet avalanche problem at all elevations.  Look for signs of instability and avoid slopes that have unsupportable snow.

Click here to see the full advisory for 2017-03-12
March 12, 2017 at 6:46

Low avalanche danger exists this morning.  As rapid warming occurs with intense sunshine, avalanche danger will rise to Moderate due to loose wet avalanche problems.  Get an early start to avoid most loose wet avalanche issues and have better travel conditions. 

Click here to see the full advisory for 2017-03-11
March 11, 2017 at 6:56

LOW avalanche danger exists this morning. The avalanche danger will increase to MODERATE as loose wet avalanches become possible due to daytime warming and intense spring sunshine. Evaluate snow and terrain carefully and move to less steep slopes or slopes with colder more frozen snow once signs of loose wet instabilities like roller balls, pinwheels, or sinking above your boots into wet snow start to occur. 

Click here to see the full advisory for 2017-03-10
March 10, 2017 at 6:58

LOW avalanche danger this morning will increase to MODERATE avalanche danger today as loose wet avalanches become possible. If any areas recieve rain today, loose wet avalanche activity will be more widespread in those areas. Evaluate snow and terrain carefully and move to slopes with colder more frozen snow once signs of loose wet instabilities like roller balls, pinwheels, or sinking deep into wet snow start to occur. 

Click here to see the full advisory for 2017-03-09
March 9, 2017 at 6:43

The avalanche danger will rise to MODERATE today as loose wet avalanche become possible. Some of these loose wet avalanches may entrain enough snow to bury a person. Evaluate snow and terrain carefully and move to colder shadier slopes once signs of loose wet instabilities like roller balls, pinwheels, or sinking deep into wet snow start to occur. 

Click here to see the full advisory for 2017-03-08
March 8, 2017 at 6:43

MODERATE avalanche danger exists at all elevations. Loose wet avalanche problems will become increasingly widespread today. A wind slab avalanche problem may linger in isolated areas. Timing is important to avoid unstable wet snow as the loose wet problem will increase in response to daytime warming. Terrain with potential wind slabs will need evaluation on a slope by slope basis as signs of instability prior to an avalanche event will likely be very limited.

Click here to see the full advisory for 2017-03-07
March 7, 2017 at 6:42

MODERATE avalanche danger today for all elevations due to lingering wind slab and developing loose wet avalanche problems. Evaluate terrain and conditions carefully, especially near and above treeline where the wind slab problem exists.

Click here to see the full advisory for 2017-03-06
March 6, 2017 at 6:50

Considerable avalanche danger will continue today due to additional snow and strong to gale force winds.  Dangerous avalanche conditions exist.  Wind slab, storm slab, and loose dry avalanche problems are likely at all elevations.  Natural avalanches are possible and human triggered avalanches are likely.  Evaluate snow and terrain carefully before committing to a slope.

Click here to see the full advisory for 2017-03-05
March 5, 2017 at 6:40

Considerable avalanche danger exists at all elevations due to wind slab, storm slab, and loose dry avalanche problems.  Dangerous avalanche conditions exist with natural triggered and human triggered avalanches likely today.  Cautious route finding and conservative decision making are essential.

Click here to see the full advisory for 2017-03-04
March 4, 2017 at 6:59

LOW avalanche danger exists for all elevations until new snow starts to accumulate this afternoon/evening. Some areas of instability can still exist on isolated terrain features during LOW danger.

Once it begins snowing, the avalanche danger will increase rapidly as WIND SLABS and STORM SLABS form. During the night natural avalanches will become possible and the avalanche danger will rise to CONSIDERABLE. Expect dangerous avalanche conditions in the backcountry tonight and tomorrow. Check back tomorrow morning for the latest updates. 

Click here to see the full advisory for 2017-03-03
March 3, 2017 at 6:59

Loose wet avalanches will become possible at all elevations as the day warms up. The avalanche danger will rise to MODERATE at all elevations today. Other lingering avalanche problems may also still exist like the large cornices above many slopes or instabilities on isolated terrain features in complex or extreme terrain. Identify terrain where avalanche problems may exist and use this information to plan a travel route that avoids the problematic terrain.

Click here to see the full advisory for 2017-03-02
March 2, 2017 at 7:00

Loose wet avalanches will become possible at all elevations as the day warms up. The avalanche danger will rise to MODERATE at all elevations today. Identify terrain where avalanche problems may exist and use this information to plan a travel route that avoids the problematic terrain.

Click here to see the full advisory for 2017-03-01
March 1, 2017 at 6:45

Areas of MODERATE avalanche danger are expected today. Wet loose avalanche activity is possible at all elevations. Some small new wind slabs likely formed above treeline last night due to a shift to E winds. Identify areas of concern and communicate a terrain management plan with travel partners.

Click here to see the full advisory for 2017-02-28
February 28, 2017 at 6:45

MODERATE avalanche danger will exist today at all elevations. Lingering wind slabs and developing wet loose avalanche problems are the concerns to manage today. Identify specific slopes of concern. Account for changing snowpack stability as daytime warming increases the likelihood of wet loose instability in sun exposed areas.

Click here to see the full advisory for 2017-02-27
February 27, 2017 at 6:45

Considerable avalanche danger exists in near treeline and above treeline areas due to wind slab avalanchesModerate avalanche danger exists near and below treeline due to storm slab avalanches.  Natural and human triggered avalanches are likely today.  Cautious route finding and conservative decision making are essential.

Click here to see the full advisory for 2017-02-26
February 26, 2017 at 6:45

Moderate avalanche danger continues today due to a wind slab avalanche problem.  These wind slabs exist in near treeline and above treeline terrain.  Human triggered avalanches remain possible today.  Low avalanche danger continues in below treeline areas. 

Click here to see the full advisory for 2017-02-25
February 25, 2017 at 7:00

Human triggered wind slab avalanches and small loose snow sluffs will remain possible today. MODERATE avalanche danger exists in near and above treeline terrain today with LOW danger in below treeline areas. Carefully evaluate snowpack and terrain before committing to any slopes and identify where avalanche problems may exist. Use this information to avoid slopes where avalanche problems may exist.

Click here to see the full advisory for 2017-02-24
February 24, 2017 at 6:59

MODERATE avalanche danger exists in near and above treeline terrain today with LOW danger in below treeline areas. Human triggered wind slab avalanches and loose snow sluffs will remain possible today. Carefully evaluate snowpack and terrain before committing to any slopes and use this information to avoid slopes where avalanche problems may exist.

Click here to see the full advisory for 2017-02-23
February 23, 2017 at 6:59

MODERATE avalanche danger exists in near and above treeline terrain today with LOW danger in below treeline areas. Human triggered wind slab avalanches and loose snow sluffs will remain possible today. Carefully evaluate snowpack and terrain before committing to any slopes and use this information to avoid slopes where avalanche problems may exist.

Click here to see the full advisory for 2017-02-22
February 22, 2017 at 6:48

Avalanche danger is CONSIDERABLE near treeline and above treeline. Avalanche danger is MODERATE below treeline. Wind slab and storm slab avalanche problems continue today. Backcountry travelers should not be surprised by human triggered avalanche activity at any elevation. Dangerous avalanche conditions exist in many areas. Cautious and conservative terrain decisions and route selection are warranted today. 9:50 am update to add Wet Loose avalanche problem.

 

Click here to see the full advisory for 2017-02-21
February 21, 2017 at 6:51

Areas of HIGH avalanche danger will continue to exist today at all elevations. Localized convective snow showers are expected to create periods of high intensity snowfall. Widespread avalanche activity occurred yesterday and likely continued to occur last night. Wind slabs and storm slabs remain ongoing avalanche problems.

Travel in or below avalanche terrain is not recommended. Avoid avalanche runout zones.

Click here to see the full advisory for 2017-02-20
February 20, 2017 at 6:55

High Avalanche Danger will exist at all elevations due to the strong atmospheric river storm impacting our area.  Wind slab, storm slab, and loose wet avalanche problems will be very likely at all elevations.  Natural and human triggered avalanches are expected.  Travel in avalanche terrain is not recommended.  An avalanche warning has been issued until 7am Tuesday morning. 

Click here to see the full advisory for 2017-02-19
February 19, 2017 at 6:50

Moderate avalanche danger exists at all elevations due to wind slab and loose wet avalanche problems.  Human triggered wind slab avalanches remain possible today in near treeline and above treeline terrain.  Loose wet avalanches are possible in below treeline terrain.  Evaluate snow and terrain carefully and make a plan to avoid areas of concern.

Click here to see the full advisory for 2017-02-18
February 18, 2017 at 6:59

Some human-triggered wind slab avalanches may remain possible today. Near and above treeline MODERATE avalanche danger exists in wind-loaded areas. Evaluate the snowpack and terrain carefully to identify features where problematic wind slabs may exist and plan travel routes to avoid them.

Click here to see the full advisory for 2017-02-17
February 17, 2017 at 6:59

Human-triggered wind slab avalanches will be possible today on wind-loaded slopes. Near and above treeline terrain will hold more widespread and larger wind slabs, but some wind slabs may still linger in below treeline terrain. MODERATE avalanche danger exists at all elevations. Due to unusual wind directions, wind slabs may exist in unusual places. Evaluate the snowpack and terrain carefully to identify where avalanche problems may exist and plan travel routes to avoid them.

Click here to see the full advisory for 2017-02-16
February 16, 2017 at 6:59

Human-triggered wind slab avalanches will be possible today on wind-loaded slopes and some human-triggered storm slab avalanches may be possible on sheltered slopes. MODERATE avalanche danger exists at all elevations. If more snow falls than forecasted, the avalanche danger could rise to CONSIDERABLE. Evaluate the snowpack and terrain carefully to identify where problematic storm slabs and wind slabs may exist and plan travel routes to avoid areas with these avalanche problems.

Click here to see the full advisory for 2017-02-15
February 15, 2017 at 6:51

LOW avalanche danger early this morning will increase to MODERATE danger for all elevations as daytime warming progresses. Wet loose avalanches are possible today. Timing of travel in or below sun exposed avalanche terrain is important.

Click here to see the full advisory for 2017-02-14
February 14, 2017 at 6:43

LOW avalanche danger exists for all elevations. Minor wet loose avalanche activity could occur again today in response to daytime warming. Normal caution is advised.

Click here to see the full advisory for 2017-02-13
February 13, 2017 at 6:45

Moderate avalanche danger exists in below treeline, near treeline, and above treeline terrain due to loose wet and wind slab avalanches.  Loose wet avalanches are possible at all elevations and human triggered wind slabs are becoming unlikely but not impossible in near and above treeline terrain.  Evaluate snow and terrain carefully, identify areas of concern. 

Click here to see the full advisory for 2017-02-12
February 12, 2017 at 6:40

Moderate avalanche danger exists in near treeline and above treeline terrain due to wind slab avalanche problems.  Human triggered wind slab avalanches remain possible today.

Click here to see the full advisory for 2017-02-11
February 11, 2017 at 6:59

MODERATE avalanche danger exists on steep slopes at all elevations due to wind slabs formed during the storm and new wind slabs formed by the NE and E winds today. Human-triggered wind slab avalanches will remain possible today. Identify areas where wind slabs may exist and plan backcountry travel routes to avoid wind-loaded slopes.  

Click here to see the full advisory for 2017-02-10
February 10, 2017 at 6:59

Large human-triggered wind slab avalanches remain likely today due to gale force winds and heavy snow across the forecast area. Today the avalanche danger is CONSIDERABLE in near and above treeline terrain and MODERATE in below treeline. Dangerous avalanche conditions exist. Carefully evaluate the terrain and snowpack before committing to any slope and use this information plan conservative travel routes that avoid the avalanche problems. 

Click here to see the full advisory for 2017-02-09
February 9, 2017 at 7:00

The avalanche danger will rise to CONSIDERABLE today at all elevations as hurricane force winds and heavy precipitation impact the region. Human triggered wind slab avalanches and wet loose avalanches will become likely today. As snow levels lower this afternoon and evening, wind slabs will become more widespread and larger and loose wet snow instabilities will become smaller and more isolated. Natural avalanches will become possible this afternoon and during the night as more snow accumulates. 

Click here to see the full advisory for 2017-02-08
February 8, 2017 at 6:46

MODERATE avalanche danger exists for all elevations today. Wet loose and wind slab avalanche problems remain an ongoing concern. Precipitation intensity will be dramatically less today than yesterday and the snowpack has had time to establish drainage for rain on snow. Human triggered avalanches remain possible today. Natural avalanches are unlikely, but not impossible today in isolated areas. Exercise caution for travel in or below backcountry avalanche terrain.

 

Click here to see the full advisory for 2017-02-07
February 7, 2017 at 6:50

HIGH avalanche danger exists above 8,500' with CONSIDERABLE danger below 8,500'. Wind slab, wet slab, and wet loose avalanche problems are expected today. Travel in or below backcountry avalanche terrain or on or below slopes steeper than 35 degrees is not recommended today. Be aware of avalanche run out zones and the potential for large avalanches coming from high above. An avalanche warning remains in effect until 7 am Wednesday February 8, 2017.

Click here to see the full advisory for 2017-02-06
February 6, 2017 at 7:00

High avalanche danger will exist throughout today due to wind slab, storm slab, and loose wet avalanche problems.  Very dangerous avalanche conditions exist with natural avalanches likely and human triggered avalanches very likely.  Travel in avalanche terrain is not recommended.  Conditions will further deteriorate tonight as an atmospheric river brings additional heavy rain and high elevation snow to our area.

Click here to see the full advisory for 2017-02-05
February 5, 2017 at 6:40

Moderate avalanche danger exists in near treeline and above treeline terrain due to a continuing wind slab avalanche problem.  Low avalanche danger exists in below treeline terrain.  Human triggered wind slab avalanches remain possible for today.  Avalanche danger will rise tonight and through Monday as the first in a series of storms impact our region this week.

Click here to see the full advisory for 2017-02-04
February 4, 2017 at 6:59

CONSIDERABLE avalanche danger exists on near and above treeline slopes and MODERATE danger exists in below treeline areas. Human triggered wind slab avalanches are likely today and storm slab avalanches are possible. Dangerous avalanche conditions exist. Carefully evaluate the snowpack and terrain before committing to any backcountry route and use this information to choose appropriate terrain that avoids the avalanche problems. 

Click here to see the full advisory for 2017-02-03
February 3, 2017 at 6:50

Avalanche danger will increase to considerable today due to wind slab, storm slab, and loose wet avalanche problems.  These avalanche problems will be likely in below treeline, near treeline, and above treeline terrain.  Dangerous avalanche conditions will exist throughout today.  Natural avalanches will be possible and human triggered avalanches will be likely.  Conservative decision making and cautious route finding are essential.

Click here to see the full advisory for 2017-02-02
February 2, 2017 at 6:50

MODERATE avalanche danger is expected today for all elevations due to newly formed wind slab, storm slab, and possible wet loose avalanche problems. Avalanche activity is most likely to occur on slopes 35 degrees and steeper but could occur on lower angle slopes down to 30 degrees in some areas, especially below treeline. Increasing avalanche danger is expected late tonight into early Friday morning with CONSIDERABLE danger to possibly HIGH danger occurring overnight.

Click here to see the full advisory for 2017-02-01
February 1, 2017 at 6:57

LOW avalanche danger continues today for all elevations. Isolated areas of instability may exist. Normal caution is advised. Avalanche danger is expected to increase Thursday morning.

Click here to see the full advisory for 2017-01-31
January 31, 2017 at 6:49

LOW avalanche danger continues for all elevations. Isolated areas of instability may exist. Use normal caution while traveling in the backcountry by utilizing the accepted best practice travel techniques for travel in or below avalanche terrain.

Click here to see the full advisory for 2017-01-30
January 30, 2017 at 6:59

LOW avalanche danger exists at all elevations, but some unstable snow may still linger on isolated terrain features. Evaluate the terrain and snowpack while traveling in the backcountry to identify where these isolated areas of unstable snow may still exist. Use normal caution when traveling in the backcountry.

Click here to see the full advisory for 2017-01-29
January 29, 2017 at 6:59

LOW avalanche danger exists at all elevations. LOW danger does not mean no danger and unstable snow may still linger on isolated terrain features. Small avalanches could still occur in isolated or extreme terrain. Evaluate the terrain and snowpack while traveling in the backcountry to identify where these isolated areas of unstable snow may still exist.

Click here to see the full advisory for 2017-01-28
January 28, 2017 at 6:59

Human triggered wind slab avalanches may remain possible today due to wind slabs lingering in near and above treeline terrain. MODERATE avalanche danger exists on near and above treeline slopes. LOW avalanche danger exists in below treeline areas. Evaluate snow and terrain carefully before committing to a route. Use this information to identify features of concern like wind slabs and plan a route to avoid those areas of concern.

Click here to see the full advisory for 2017-01-27
January 27, 2017 at 6:45

Moderate avalanche danger will continue due to potential wind slab development.  These wind slabs will be possible in near treeline and above treeline terrain on slopes steeper than 35 degrees.  Low avalanche danger continues in all below treeline terrain.  Identify and avoid areas where wind slabs may exist.

Click here to see the full advisory for 2017-01-26
January 26, 2017 at 6:45

Moderate avalanche danger exists in near treeline and above treeline terrain due to the possibility of a wind slab avalanche problem.  Low avalanche danger continues in wind protected below treeline terrain.  Identify and avoid areas where active wind loading is occurring or has previously occurred.

Click here to see the full advisory for 2017-01-25
January 25, 2017 at 6:45

MODERATE avalanche danger exists in near treeline and above treeline areas on slopes 35 degrees and steeper due to the possibility of another round of wind slab development. LOW avalanche danger exists for wind protected areas below treeline.

Click here to see the full advisory for 2017-01-24
January 24, 2017 at 6:34

MODERATE avalanche danger exists near treeline and above treeline due to wind slabs. Below treeline LOW avalanche danger exists in wind protected areas. Areas of instability will exist within greater surrounding areas of seemingly good stability. This could create a false sense of security. Avoid relying on marginal islands of safety or grouping up in runout zones. Evaluate slopes and terrain carefully, especially when changing elevation bands or changing from one aspect to another.

Click here to see the full advisory for 2017-01-23
January 23, 2017 at 6:58

CONSIDERABLE avalanche danger exists at all elevations due to widespread wind slabs and storm slabs. Widespread human-triggered avalanches are likely today, and some natural avalanches may remain possible. These avalanches could be large, deep, and destructive. Dangerous avalanche conditions exist. Carefully evaluate the snowpack and terrain before committing to any slopes and plan routes to avoid avalanche problems using conservative terrain choices. CONSIDERABLE is the danger rating where the most avalanche fatalities occur.

Click here to see the full advisory for 2017-01-22
January 22, 2017 at 6:59

HIGH avalanche danger exists at all elevations. Due to heavy snow, intense snowfall rates, and gale force winds human triggered wind slab avalanches and storm slab avalanches will be very likely today and natural avalanches will be likely. Some avalanches could be large, deep, and destructive. Travel in or near avalanche terrain or in the runout zones of avalanche paths is not recommended.

Click here to see the full advisory for 2017-01-21
January 21, 2017 at 6:58

Human triggered wind slab and storm avalanches are likely today. Natural avalanches are possible. CONSIDERABLE danger exists at all elevations. Some large and destructive avalanches could occur. Dangerous avalanche conditions exist. Carefully evaluate the snowpack and the terrain before committing to any slopes. Use this information to make conservative and cautious decisions and plan safe routes of travel that avoid avalanche problems. As another strong winter storm impacts the region tonight through Monday morning, the avalanche danger will increase.

Click here to see the full advisory for 2017-01-20
January 20, 2017 at 6:50

Considerable avalanche danger will continue throughout the forecast area as another storm impacts our region.  Wind slab and storm slab avalanche problems will be very likely at all elevations.  Natural triggered avalanches will be possible and human triggered avalanches will be likely.  Dangerous avalanche conditions exist.  Conservative decision making and terrain choices are critical today.

Click here to see the full advisory for 2017-01-19
January 19, 2017 at 6:50

Considerable avalanche danger exists at all elevations due to wind slab and storm slab avalanche problems.  Dangerous avalanche conditions exist.  Natural triggered avalanches are possible and human triggered avalanches are likely.  Cautious route finding and conservative decision making are essential today.

Click here to see the full advisory for 2017-01-18
January 18, 2017 at 6:56

LOW avalanche danger continues through the morning hours today. Following the onset of precipitation, MODERATE avalanche danger will exist at all elevations on slopes 35 degrees and steeper. Avalanche danger will further increasing to CONSIDERABLE danger during the evening and overnight hours at all elevations on slopes 30 degrees and steeper. Expect new wind slabs and storm slabs to form during the afternoon and overnight hours. Natural avalanches are possible tonight.

Click here to see the full advisory for 2017-01-17
January 17, 2017 at 6:45

LOW avalanche danger exists for all elevations. Avalanche activity is unlikely, not impossible. Isolated areas of unstable snow may exist. Normal caution is advised.

Click here to see the full advisory for 2017-01-16
January 16, 2017 at 6:59

LOW avalanche danger exists at all elevations. While triggering an avalanche has become unlikely, some unstable snow may still exist on isolated terrain features and small avalanches could still occur in isolated or extreme terrain. Continue to evaluate the terrain and snowpack while traveling in the backcountry to identify where these isolated areas of unstable snow may still exist.

Click here to see the full advisory for 2017-01-15
January 15, 2017 at 6:58

The avalanche danger has decreased to LOW. Low avalanche danger does not mean no avalanche danger. Unstable snow may still exist on isolated terrain features and small avalanches could still occur in isolated or extreme terrain. Continue to evaluate the terrain and snowpack while traveling in the backcountry to identify where these isolated areas of unstable snow may still exist and avoid those slopes.

Click here to see the full advisory for 2017-01-14
January 14, 2017 at 6:54

MODERATE avalanche danger exists at all elevations due to newly formed wind slabs and unlikely but not impossible lingering deep slabs. Human triggered avalanches may remain possible today especially in regards to the wind slabs that formed yesterday. Evaluate the snowpack and terrain carefully before committing to any route and use this information to identify and avoid areas of concern. This data can also help find safer areas to recreate where good snow conditions exist.

Click here to see the full advisory for 2017-01-13
January 13, 2017 at 6:50

Moderate avalanche danger exists throughout the forecast area at all elevations due to wind slab and deep slab avalanche problems.  Human triggered avalanches remain possible today.  Evaluate snow and terrain carefully, identify features of concern. 

Click here to see the full advisory for 2017-01-12
January 12, 2017 at 6:54

Considerable avalanche danger exists at all elevations due to wind slab, storm slab, and deep slab avalanche problems.  Dangerous avalanche conditions exist.  Natural avalanches are possible and human triggered avalanches are likely.  Careful snowpack evaluation, cautious route finding, and conservative decision making are essential today.

Click here to see the full advisory for 2017-01-11
January 11, 2017 at 6:45

HIGH avalanche danger continues for all elevations and aspects due to a combination of wind slab, storm slab, and deep slab avalanche problems. Travel in avalanche terrain, on or below slopes 30 degrees and steeper is not recommended. Avalanches could run into areas of mature forest. A backcountry avalanche warning remains in effect through 5 pm today.

Click here to see the full advisory for 2017-01-10
January 10, 2017 at 6:51

HIGH avalanche danger exists for all elevations and aspects due to a combination of wind slab, storm slab, and deep slab avalanche problems. Travel in avalanche terrain, on or below slopes 30 degrees and steeper is not recommended. Avalanches could run into areas of mature forest. A backcountry avalanche warning is in effect through at least 7 am Wednesday.

Click here to see the full advisory for 2017-01-09
January 9, 2017 at 6:55

Dangerous avalanche conditions still exist and large, deep, destructive human-triggered avalanches remain likely due to deep slabs and wind slabs. CONSIDERABLE avalanche danger exists at all elevations. This danger rating is when the most avalanche fatalities occur. Carefully evaluate the snowpack and terrain and use this information to create safe and conservative travel plans. Avoid areas where avalanche problems may exist. The avalanche danger will rise to HIGH again tonight as more snow and wind impact the forecast area.

Click here to see the full advisory for 2017-01-08
January 8, 2017 at 7:00

Natural and human triggered avalanches are certain today due to the significant amount of rain on snow expected below 9300 ft. and heavy wet snow loading above 9000 ft. Large, deep, destructive wet slab, deep slab, and wind slab avalanches will occur today as well as loose wet avalanches. Avalanches could run farther than expected and involve almost the entire snowpack. Avoid travel in or near avalanche terrain or runout zones today. EXTREME avalanche danger exists at all elevations. 

Click here to see the full advisory for 2017-01-07
January 7, 2017 at 7:00

UPDATED @ 1:30PM 

Due to snow levels rising sooner than expected, natural and human triggered avalanches are likely this afternoon and tonight. Large destructive deep slabs, wind slabs, and wet slabs that run long distances are likely as more rain and snow impact the region. Very dangerous avalanche conditions exist. Travel in or near avalanche terrain is not recommended. The avalanche danger has increased to HIGH at all elevations due to rain, wind, and snow impacting the region.

Click here to see the full advisory for 2017-01-06
January 6, 2017 at 6:54

Moderate avalanche danger exists throughout the forecast area due to deep slab and wind slab avalanches.  Dangerous avalanche conditions continue to be possible with many deep slab avalanches occurring throughout the forecast area within the last 48 hours including a skier triggered deep slab avalanche in the Mt. Rose area yesterday partially burying a skier and a car.  Large avalanches with severe consequences could be human triggered today.   Cautious route finding and conservative decision making are essential.

Click here to see the full advisory for 2017-01-05
January 5, 2017 at 6:55

Considerable avalanche danger exists at all elevations throughout the forecast area.  Dangerous avalanche conditions continue due to wind slabs, storm slabs, and deep slab avalanche problems.  Human triggered avalanches are likely and natural avalanches are possible today.   

Click here to see the full advisory for 2017-01-04
January 4, 2017 at 6:48

HIGH avalanche danger exists at all elevations today. Natural and human triggered avalanches are likely in a variety of areas. Large destructive avalanches could occur. A complex mix of wind slab, storm slab, and deep slab avalanche problems exist. The majority of avalanche activity today is expected on slopes 35 degrees and steeper but could occur on slopes 30 degrees and steeper in isolated areas. A Backcountry Avalanche Warning is in effect until 7 am Thursday.

Click here to see the full advisory for 2017-01-03
January 3, 2017 at 6:58

CONSIDERABLE avalanche danger at all elevations exists today, increasing to HIGH danger this evening. Human triggered avalanches are likely and natural avalanches are possible. A complex mix of wind slab, storm slab, and deep slab avalanche problems exist. The majority of avalanche activity today is expected on slopes 35 degrees and steeper but could occur on slopes 30 degrees and steeper in isolated areas. An Avalanche Warning has been issued starting 4 pm today lasting through 7 am Thursday.

Click here to see the full advisory for 2017-01-02
January 2, 2017 at 7:00

Human triggered avalanches will be possible today at all elevations due to new wind slabs, new storm slabs, and lingering persistent slabs. Some avalanches could be large and have serious consequences. Evaluate the snowpack and terrain carefully; identify areas where instability may exist, and use this information to avoid those areas of concern. MODERATE avalanche danger exists at all elevations. As more snow and wind impact the region this week, the avalanche danger will increase.

Click here to see the full advisory for 2016-12-31
December 31, 2016 at 7:00

THIS ADVISORY WILL BE UPDATED ON JANUARY 2, 2017 at 7:00 am.

Human triggered avalanches will remain possible today and tomorrow on some slopes steeper than 32 degrees. MODERATE avalanche danger exists at all elevations. Evaluate the snowpack and terrain carefully; identify areas where instability may exist, and use this information to avoid those areas of concern. As more snow and wind imapct the region this week the avalanche danger will increase.

Click here to see the full advisory for 2016-12-30
December 30, 2016 at 6:45

Moderate avalanche danger continues to be possible throughout most of the forecast area due to persistent slabs.  These persistent slabs are found on slopes steeper than 32 degrees at all elevations mainly along the Sierra Crest.  Human triggered avalanches remain possible today. 

Click here to see the full advisory for 2016-12-29
December 29, 2016 at 6:45

Moderate avalanche danger continues throughout the forecast area on slopes steeper than 32 degrees at all elevations due to persistent slabs.  Human triggered avalanches remain possible today.  Evaluate snow and terrain carefully, identify features of concern.

Click here to see the full advisory for 2016-12-28
December 28, 2016 at 6:58

Areas of MODERATE avalanche danger continue to exist at all elevations on slopes 32 degrees and steeper due to a combination of wind slabs and persistent slabs. A human triggered wind slab avalanche occurred yesterday with signs of persistent instability present in other areas. Human triggered avalanches are possible again today in a variety of areas. Exercise caution and conservative decision making during backcountry travel.

Click here to see the full advisory for 2016-12-27
December 27, 2016 at 7:00

Areas of MODERATE avalanche danger exist at all elevations on slopes 32 degrees and steeper due to a combination of wind slabs and persistent slabs. Several human triggered avalanches occurred yesterday with signs of persistent instability present in other areas. Human triggered avalanches are possible again today in a variety of areas. Isolated natural avalanche activity is unlikely but not impossible today. Exercise caution and conservative decision making during backcountry travel.

Click here to see the full advisory for 2016-12-26
December 26, 2016 at 6:59

Some human triggered avalanches may remain possible on specific terrain today due to a combination of storm slabs in near and below treeline terrain and lingering wind slabs in wind-loaded near and above treeline terrain. MODERATE avalanche danger exists at all elevations. Evaluate the snowpack and terrain carefully before committing to any slopes.

Click here to see the full advisory for 2016-12-25
December 25, 2016 at 6:55

Human triggered avalanches remain possible at all elevations today due to a combination of storm slabs in near and below treeline terrain, wind slabs in wind-loaded near and above treeline terrain, and loose dry avalanches in non-wind-affected terrain. Remote triggering of the storm slabs and wind slabs may be possible today. MODERATE avalanche danger exists at all elevations. Evaluate the snowpack and terrain carefully and use this data to inform your decision making and route planning.

Click here to see the full advisory for 2016-12-24
December 24, 2016 at 7:00

This advisory is valid until 12/26 at 7am.

Wind slabs in wind-loaded near and above treeline areas mean that human-triggered avalanches remain likely today and will remain possible tomorrow. In near and below treeline areas, human triggered storm slab avalanches will be possible in some areas both today and tomorrow. Evaluate the snowpack and terrain carefully and use this data to inform your route planning. Cautious and conservative decision-making represents the best plan for recreating in the backcountry. 

Click here to see the full advisory for 2016-12-23
December 23, 2016 at 6:58

A fast and powerful winter storm will impact our area starting this morning and continue through tonight.  Avalanche hazard will quickly rise to High as snowfall rates approach 3'' per hour later this morning.  Wind slab and storm slab avalanche problems will be very likely at all elevations throughout the region.  An avalanche warning has been issued for the forecast area until 7am Saturday morning.  Very dangerous avalanche conditions exist.  Travel in avalanche terrain is not recommended.

Click here to see the full advisory for 2016-12-22
December 22, 2016 at 6:50

Low avalanche danger continues across the forecast area for today at all elevations.  Normal caution is advised.  Avalanche danger is expected to increase tomorrow as a significant winter storm moves into our area. An avalanche watch has been issued to reflect this expected increase in avalanche danger.

Click here to see the full advisory for 2016-12-21
December 21, 2016 at 6:47

LOW avalanche danger exists for all elevations. Isolated old wind slabs may linger in near and above treeline terrain. Normal caution is advised.

Click here to see the full advisory for 2016-12-20
December 20, 2016 at 6:50

Areas of MODERATE avalanche danger linger near and above treeline due to old wind slabs. Below treeline, LOW avalanche danger exists. Avalanche activity has been reported in isolated areas each of the past two days.

Click here to see the full advisory for 2016-12-19
December 19, 2016 at 7:10

MODERATE avalanche danger may exist due to possible wind slabs resting on a variety of weak layers on all wind-loaded aspects. Some of these wind slabs are small and some could be large. Human triggered wind slab avalanches may be possible today. A human triggered avalanche that may have been a wind slab was reported in the Mt. Rose backcountry yesterday. Triggering a deep slab avalanche on NW-N-NE aspects above 9000 ft. has become unlikely but not impossible. 

Click here to see the full advisory for 2016-12-18
December 18, 2016 at 7:03

MODERATE avalanche danger may exist on NW-W-SW-S-SE aspects in above treeline terrain due to possible wind slabs created by forecasted NE and E winds. These new wind slabs should remain small but could knock a person off their feet. Triggering a deep slab avalanche on NW-N-NE aspects above 9000 ft. has become unlikely but not impossible. At elevations below 9000 ft. less avalanche danger exists, but firm icy slopes with a dusting of snow may exist on all aspects.

Click here to see the full advisory for 2016-12-17
December 17, 2016 at 7:00

MODERATE avalanche danger exists due to possible wind slabs on all aspects above treeline and on NW-N-NE-E-SE aspects in near and below treeline terrain. Some unlikely but not impossible deep slabs may still linger on high elevation NW-N-NE aspects on slopes steeper than 32 degrees as well. At elevations below 9000 ft. less avalanche danger exists, but firm icy slopes with a dusting of snow may exist on all aspects.

Click here to see the full advisory for 2016-12-16
December 16, 2016 at 6:54

Areas above 8000' where the most snow has fallen will have Considerable avalanche danger.  Wind slabs have and will continue to form throughout today on NW-N-NE-E-SE-S aspects.  Deep persistent slabs will be possible above 9000' on NW-N-NE aspects.  Natural triggered avalanches are possible and human triggered avalanches are likely in these areas.  Large destructive avalanches remain possible throughout today.   Firm icy surfaces exist at the lower elevations and could pose dangerous travel conditions with long sliding falls possible. 

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