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., 02/20/2019
E.g., 02/20/2019
E.g., 02/20/2019
Date the forecast was published:sort ascending Bottom Line
Click here to see the full forecast for 2019-02-20
February 20, 2019 at 6:58

MODERATE avalanche danger still exists near and above treeline due to the potential for lingering wind slabs in some terrain. Below treeline the avalanche danger is LOW.

Click here to see the full forecast for 2019-02-19
February 19, 2019 at 6:59

MODERATE avalanche danger still exists at all elevations due to a combination of new and old wind slabs and some potential loose dry avalanches. Human triggered avalanches remain possible today.

Click here to see the full forecast for 2019-02-18
February 18, 2019 at 6:55

MODERATE avalanche danger will exist due to wind slab and storm slab avalanche problems.  Human triggered avalanches remain possible at all elevations.

Click here to see the full forecast for 2019-02-17
February 17, 2019 at 6:49

CONSIDERABLE avalanche danger will exist today due to wind slab and storm slab avalanche problems.  Human triggered avalanches are likely today with natural triggered avalanches possible.  Dangerous avalanche conditions exist.

Click here to see the full forecast for 2019-02-16
February 16, 2019 at 6:45

HIGH avalanche danger continues for another 24 hours at all elevations. Travel in or below avalanche terrain is not recommended. Maintain awareness of your location relative to avalanche terrain and keep a wide margin for error. Remain clear of avalanche runout zones.

Click here to see the full forecast for 2019-02-15
February 15, 2019 at 6:49

HIGH avalanche danger continues for all elevations. Travel in or below avalanche terrain is not recommended. Maintain awareness of your location relative to avalanche terrain and keep a wide margin for error. Remain clear of avalanche runout zones.

Click here to see the full forecast for 2019-02-14
February 14, 2019 at 6:59

HIGH avalanche danger exists at all elevations. Dangerous and complex avalanche conditions exist. Natural avalanches are likely and human-triggered avalanches are very likely. Large destructive avalanches could occur. Travel in, near or below avalanche terrain is not recommended. Rain on snow could also cause dangerous roof-avalanches under roofs that have not already unloaded.

Click here to see the full forecast for 2019-02-13
February 13, 2019 at 6:56

The hazard will rise to HIGH avalanche danger today. Large natural avalanches will become likely and human triggered avalanches will be very likely today and tonight. Rain on snow, heavy snow, and gale force winds will create a complicated and dangerous mix of wind slab, storm slab, and loose wet avalanche problems at all elevations. Travel in, near or below avalanche terrain is not recommended. Rain on snow could also cause dangerous roof-avalanches as roofs still holding snow unload. 

Click here to see the full forecast for 2019-02-12
February 12, 2019 at 6:59

MODERATE avalanche danger exists in near and above treeline terrain due to wind slab avalanche problems. Human-triggered avalanches will remain possible today. Expect avalanche conditions to become more complex and dangerous as a winter storm arrives tomorrow.  

Click here to see the full forecast for 2019-02-11
February 11, 2019 at 6:52

MODERATE avalanche danger will exist today throughout the forecast region.  Human triggered wind slab and storm slab avalanches will be possible at all elevations. 

Click here to see the full forecast for 2019-02-10
February 10, 2019 at 6:45

CONSIDERABLE avalanche danger will exist today due to wind slab and storm slab avalanche problems.  Dangerous avalanche conditions are expected.  Human and natural triggered avalanches could occur at all elevations today.  

Click here to see the full forecast for 2019-02-09
February 9, 2019 at 16:28

HIGH avalanche danger is developing rapidly above and below treeline as the next wave of the current storm cycle moves into the region. Travel in or below avalanche terrain is not recommended. Please note that this forecast is valid until 7 am Sunday. The next update will occur by that time.

Click here to see the full forecast for 2019-02-09
February 9, 2019 at 6:58

CONSIDERABLE avalanche danger exists today in near treeline and above treeline areas due to a wind slab avalanche problem. MODERATE avalanche danger exists below treeline due to possible storm slabs. Please note that this advisory is valid for 12 hours. The next update to this advisory will occur at 7 pm this evening. Increasing avalanche danger is expected tonight.

Click here to see the full forecast for 2019-02-08
February 8, 2019 at 6:56

MODERATE avalanche danger exists today as drifting snow forms new wind slabs near treeline and above treeline. Below treeline, LOW avalanche danger continues. Expect increasing avalanche danger at all elevations over the weekend.

Click here to see the full forecast for 2019-02-07
February 7, 2019 at 6:59

MODERATE avalanche danger exists in near and above treeline terrain due to some lingering wind slabs. The avalanche danger is LOW below treeline. Human-triggered avalanches may remain possible today.

Click here to see the full forecast for 2019-02-06
February 6, 2019 at 6:59

MODERATE avalanche danger exists in near and above treeline terrain due to a wind slab avalanche problem. LOW danger exists in below treeline areas. Human-triggered avalanches remain possible today.

Click here to see the full forecast for 2019-02-05
February 5, 2019 at 6:59

CONSIDERABLE avalanche danger exists at all elevations due to widespread wind slabs and some storm slabs. Large human-triggered avalanches could occur today. More avalanche fatalities occur at the CONSIDERABLE danger rating than at higher danger ratings.

Click here to see the full forecast for 2019-02-04
February 4, 2019 at 6:50

HIGH avalanche danger will continue as a powerful winter storm impacts our forecast area today and through tonight.  Very dangerous avalanche conditions will exist.  Travel in, near, or below avalanche terrain is not recommended.

Click here to see the full forecast for 2019-02-03
February 3, 2019 at 6:58

HIGH avalanche danger will continue as the next storm impacts the forecast region today and through tonight.  Very dangerous avalanche conditions will exist.  Travel in or near avalanche terrain is not recommended.

Click here to see the full forecast for 2019-02-02
February 2, 2019 at 6:45

Avalanche danger will increase to HIGH danger this morning. Natural and human triggered avalanches are very likely today. Travel in or below avalanche terrain is not recommended.

Click here to see the full forecast for 2019-02-01
February 1, 2019 at 6:46

LOW avalanche danger will occur for most of today at all elevations. Following the onset of precipitation, the trend of increasing avalanche danger will begin with MODERATE avalanche danger forming tonight as wind slabs develop near treeline and above treeline. An avalanche watch has been issued for expected periods of HIGH avalanche danger Saturday morning into Tuesday morning.

Click here to see the full forecast for 2019-01-31
January 31, 2019 at 6:59

The avalanche danger remains LOW for all elevations. Continue to use normal caution while traveling in the backcountry.

Click here to see the full forecast for 2019-01-30
January 30, 2019 at 6:50

LOW avalanche danger exists at all elevations. Continue to use normal caution while traveling in the backcountry.

Click here to see the full forecast for 2019-01-29
January 29, 2019 at 6:59

The avalanche danger remains LOW for all elevations. Continue to use normal caution while traveling in the backcountry.

Click here to see the full forecast for 2019-01-28
January 28, 2019 at 6:48

LOW avalanche danger continues throughout the forecast region.  Normal caution is advised at all elevations.

Click here to see the full forecast for 2019-01-27
January 27, 2019 at 6:45

LOW avalanche danger continues throughout the forecast area at all elevations.  Normal caution is advised.

Click here to see the full forecast for 2019-01-26
January 26, 2019 at 6:46

LOW avalanche danger continues for all elevations. Isolated areas of unstable snow may exist. Consider how terrain exposure may increase the consequences of a small unexpected avalanche.

Click here to see the full forecast for 2019-01-25
January 25, 2019 at 6:52

LOW avalanche danger exists for all elevations. Manage risk to minimize the consequences of triggering an unexpected avalanche. Plan for how terrain features may increase the consequences of a small avalanche.

Click here to see the full forecast for 2019-01-24
January 24, 2019 at 7:00

LOW avalanche danger exists for all elevations today. "LOW danger" does not mean "no danger". Continue to use normal caution while traveling in the backcountry to minimize the chances of an unpleasant surprise.

Click here to see the full forecast for 2019-01-23
January 23, 2019 at 6:59

MODERATE avalanche danger exists in near and above treeline terrain with LOW danger in below treeline areas. Lingering wind slabs and unlikely but not impossible deep slabs represent today's avalanche problems. Human triggered avalanches may still remain possible in some areas.

Click here to see the full forecast for 2019-01-22
January 22, 2019 at 6:59

MODERATE avalanche danger exists at all elevations due to new and old wind slabs and a possible lingering deep slab problem. Human triggered avalanches remain possible today. 

Click here to see the full forecast for 2019-01-21
January 21, 2019 at 6:55

CONSIDERABLE avalanche danger will exist today due to wind slab, storm slab, and deep slab avalanche problems at all elevations.  Human triggered avalanches will remain likely today.  Dangerous avalanche conditions will exist with large and destructive avalanches possible.

 

Click here to see the full forecast for 2019-01-20
January 20, 2019 at 6:58

CONSIDERABLE avalanche danger will exist through the morning and into the afternoon due to wind slab, storm slab, and deep slab avalanche problems.  As the storm intensifies this afternoon, avalanche danger will rise to HIGH and continue overnight.  Dangerous avalanche conditions will exist with large and destructive avalanches possible.  Travel in avalanche terrain is not recommended.

Click here to see the full forecast for 2019-01-19
January 19, 2019 at 6:53

MODERATE avalanche danger exists at all elevations due to lingering wind slab and deep slab avalanche problems. Large destructive slab avalanches remain possible in isolated areas. Small loose wet avalanches may occur today in steep terrain.

Click here to see the full forecast for 2019-01-18
January 18, 2019 at 6:43

CONSIDERABLE avalanche danger exists at all elevations due to a wind slab avalanche problem and uncertainty associated with continued storm slab and deep slab avalanche problems. Large destructive avalanches remain possible today.

Click here to see the full forecast for 2019-01-17
January 17, 2019 at 6:59

HIGH avalanche danger exists at all elevations. Widespread, large destructive natural avalanche activity is likely and human-triggered avalanches are very likely. Very dangerous and complex avalanche conditions continue due to a mix of wind slabs, storm slabs, and deep persistent slabs. Travel in, below, or near avalanche terrain is not recommended.

Click here to see the full forecast for 2019-01-16
January 16, 2019 at 7:00

CONSIDERABLE avalanche danger will exist at all elevations today. This afternoon it will increase to HIGH avalanche danger as the next strong winter storm arrives over the region. Expect large widespread avalanche activity during this storm. Dangerous and complex avalanche conditions exist with a mix of wind slabs, storm slabs, and deep persistent slabs.

Click here to see the full forecast for 2019-01-15
January 15, 2019 at 6:59

3pm UPDATE - Due to higher than forecasted snowfall amounts the avalanche danger has increased to CONSIDERABLE. The avalanche danger will remain CONSIDERABLE through the night. Check back at 7 am tomorrow for the next update.

 MODERATE avalanche danger will continue. Large persistent slabs remain a concern. Wind slabs and storms slabs could become possible this afternoon and during the night as new snow and wind impact the region.

Click here to see the full forecast for 2019-01-14
January 14, 2019 at 6:50

MODERATE avalanche danger continues with a persistent slab avalanche problem at all elevations.  Large and destructive avalanches are still a concern throughout the forecast region.  Avalanche danger is expected to further rise over the next few days.

Click here to see the full forecast for 2019-01-13
January 13, 2019 at 6:50

MODERATE avalanche danger continues at all elevations due to a persistent slab avalanche problem.  Large destructive avalanches remain possible today.

Click here to see the full forecast for 2019-01-12
January 12, 2019 at 6:58

Avalanche danger has been elevated from yesterday's LOW danger back up to MODERATE danger for today at all elevations due to uncertainty associated with a lingering persistent slab avalanche problem. Large destructive avalanches are possible again today, mainly in response to large triggers.

Click here to see the full forecast for 2019-01-11
January 11, 2019 at 6:52

Avalanche danger is LOW for all elevations. Normal caution is advised.

Click here to see the full forecast for 2019-01-10
January 10, 2019 at 7:00

The avalanche danger is MODERATE in near and above treeline areas with LOW danger below treeline. Some lingering wind slabs may still exist and persistent slabs have become unlikely but not impossible.

Click here to see the full forecast for 2019-01-09
January 9, 2019 at 6:54

CONSIDERABLE avalanche danger exists today at all elevations. Wind slab, persistent slab, and possibly storm slab avalanche problems are expected in the backcountry. Large high consequence avalanches could occur today.

Click here to see the full forecast for 2019-01-08
January 8, 2019 at 6:55

MODERATE avalanche danger will exist at all elevations throughout the forecast region due to wind slab and persistent slab avalanche problems.  Large destructive human triggered avalanches could be possible today. 

Click here to see the full forecast for 2019-01-07
January 7, 2019 at 6:58

CONSIDERABLE avalanche danger exists at all elevations throughout the forecast region due to wind slab and storm slab avalanche problems.  Dangerous avalanche conditions exist with the potential for large destructive avalanches today. 

Click here to see the full forecast for 2019-01-06
January 6, 2019 at 7:01

CONSIDERABLE avalanche danger will exist at all elevations this morning due to wind slab and storm slab avalanche problems. The avalanche danger will increase to HIGH around midday as a second storm impacts the forecast area bringing blizzard conditions. HIGH danger will last through the night. Travel in avalanche terrain is not recommended.

Click here to see the full forecast for 2019-01-05
January 5, 2019 at 6:57

LOW avalanche danger continues this morning for all elevations. Following the onset of snowfall, an increase to CONSIDERABLE avalanche danger will occur at all elevations this afternoon and continue through the overnight hours. Wind slab and storm slab avalanche problems will develop.

Click here to see the full forecast for 2019-01-04
January 4, 2019 at 6:54

LOW avalanche danger continues today for all elevations. Avalanche danger will increase significantly tomorrow at all elevations following the onset of new snowfall.

Click here to see the full forecast for 2019-01-03
January 3, 2019 at 6:50

LOW avalanche danger continues at all elevations throughout the forecast region.  Avalanche activity is unlikely today.  Normal caution is advised. 

Click here to see the full forecast for 2019-01-02
January 2, 2019 at 6:50

LOW avalanche danger will continue throughout the forecast region at all elevations.  Normal caution is advised.

Click here to see the full forecast for 2018-12-31
December 31, 2018 at 7:00

LOW avalanche danger exists for all elevations through New Year's Day. Even though avalanche activity is unlikely, other problems could arise resulting from the firm and challenging snow surface conditions on most exposed slopes. This forecast will be updated again on January 2, 2019.

Click here to see the full forecast for 2018-12-30
December 30, 2018 at 7:00

LOW avalanche danger exists for all elevations today. While some difficult (but not impossible) to trigger wind slabs may still lurk in isolated near and above treeline terrain, human-triggered avalanches should remain unlikely in most places today.

Click here to see the full forecast for 2018-12-29
December 29, 2018 at 6:46

Avalanche danger is LOW for all elevations. Difficult to trigger wind slabs exist in recently wind loaded areas, mainly near treeline and above treeline. Human triggered avalanches are unlikely today but not impossible.

Click here to see the full forecast for 2018-12-28
December 28, 2018 at 6:47

MODERATE avalanche danger continues near treeline and above treeline in specific areas where blowing snow has formed new wind slabs. In wind protected areas below treeline, LOW avalanche danger exists.

Click here to see the full forecast for 2018-12-27
December 27, 2018 at 6:48

Strong winds will keep the avalanche danger at Moderate due to a wind slab avalanche problem.  Wind slab avalanches will be possible in wind exposed near treeline and above treeline terrain.  Low avalanche danger will exist in below treeline terrain.

Click here to see the full forecast for 2018-12-26
December 26, 2018 at 6:50

Moderate Avalanche Danger will exist as continued high winds affect our region today and tonight.  Wind slab avalanches will be possible in near and above treeline terrain.  Low Avalanche Danger will exist in below treeline terrain.

Click here to see the full forecast for 2018-12-25
December 25, 2018 at 6:59

Human-triggered avalanches will be likely today in near and above treeline terrain due to a wind slab avalanche problem. The avalanche danger is CONSIDERABLE. Some loose dry avalanches may also be possible in more sheltered terrain. 

Click here to see the full forecast for 2018-12-24
December 24, 2018 at 7:00

The avalanche danger will rise to MODERATE during the day as new wind slabs form in near and above treeline terrain. Human-triggered avalanches will become possible. Overnight the avalanche danger will continue rising to CONSIDERABLE as wind slabs become larger and more widespread and storm slabs may become possible in below treeline terrain. 

Click here to see the full forecast for 2018-12-23
December 23, 2018 at 6:59

The avalanche danger will remain LOW today. In the unlikely but not impossible event an avalanche does occur today, it would be a wind slab on an isolated terrain feature. The avalanche danger will increase tomorrow.

Click here to see the full forecast for 2018-12-22
December 22, 2018 at 6:54

LOW avalanche danger exists today for all elevations. A wind slab avalanche problem lingers near and above treeline. Human triggered avalanches are not impossible today.

Click here to see the full forecast for 2018-12-21
December 21, 2018 at 6:58

MODERATE avalanche danger continues in near treeline and above treeline terrain due to old and new wind slabs. LOW avalanche danger exists in wind protected areas below treeline.

Click here to see the full forecast for 2018-12-20
December 20, 2018 at 6:50

Moderate Avalanche Danger will continue today due to a wind slab avalanche problem as gale force winds with the possibility of light snow returns to our forecast area.  Wind slab avalanches will continue to be possible in near and above treeline terrain.  Low Avalanche Danger will exist in below treeline terrain.  

Click here to see the full forecast for 2018-12-19
December 19, 2018 at 6:54

Moderate Avalanche Danger will exist today due to a wind slab avalanche problem.  Wind slab avalanches will remain possible in near and above treeline terrain.  Low Avalanche Danger will exist in below treeline terrain.

Click here to see the full forecast for 2018-12-18
December 18, 2018 at 6:57

MODERATE avalanche danger still exists in near and above treeline terrain, due to the possibility of lingering wind slabs. Human-triggered avalanches may remain possible today. Create a plan with safety margins to avoid the avalanche problems and maintain awareness of the conditions and terrain to stick to these safety margins while traveling in the backcountry.

Click here to see the full forecast for 2018-12-17
December 17, 2018 at 7:00

Human-triggered avalanches will be possible today due to wind slab and storm slab avalanche problems. MODERATE avalanche danger exists at all elevations. Maintain awareness of the conditions and terrain while traveling in the backcountry and use this information to create safety margins that avoid the avalanche problems. 

Click here to see the full forecast for 2018-12-16
December 16, 2018 at 6:50

The avalanche danger will remain LOW and avalanche activity will remain unlikely until it starts snowing this evening. Continue to use normal caution when traveling in the backcountry especially in areas where old firm wind slabs may linger. The avalanche danger will increase quickly as snow starts to accumulate tonight and could reach CONSIDERABLE during the night.

Click here to see the full forecast for 2018-12-15
December 15, 2018 at 6:53

LOW avalanche danger continues for all elevations. Avalanche activity is unlikely, but remain cautious if traveling in areas of firm wind slab.

Click here to see the full forecast for 2018-12-14
December 14, 2018 at 6:45

LOW avalanche danger continues for all elevations. Avalanche activity remains unlikely, but keep an eye out for isolated instability in any areas where drifting snow accumulates.

Click here to see the full forecast for 2018-12-13
December 13, 2018 at 6:48

Low Avalanche Danger is expected throughout the forecast region today.  Normal caution is advised. 

Click here to see the full forecast for 2018-12-12
December 12, 2018 at 6:48

Moderate Avalanche Danger is expected today throughout the forecast region due to a wind slab avalanche problem.  Increased winds overnight and through today will make wind slab avalanches possible in near and above treeline terrain.  Low avalanche danger will exist in below treeline terrain.

Click here to see the full forecast for 2018-12-11
December 11, 2018 at 6:59

New wind slabs could have formed during the night and old wind slabs with a fragile weak layer (surface hoar) below them may still linger on isolated slopes in very wind-exposed near and above treeline terrain. The avalanche danger is MODERATE. Human triggered avalanches may be possible today.

Click here to see the full forecast for 2018-12-10
December 10, 2018 at 6:59

Some wind slabs may exist on top of a buried weak layer in some areas in very wind-exposed near and above treeline terrain. The avalanche danger is MODERATE. Human triggered avalanches may be possible today.

Click here to see the full forecast for 2018-12-09
December 9, 2018 at 6:57

Increased winds during the night and continued windy conditions today may mean that growing wind slabs could exist on top of a buried weak layer. The avalanche danger is MODERATE in near and above treeline terrain. Human triggered avalanches may be possible today.

Click here to see the full forecast for 2018-12-08
December 8, 2018 at 6:45

Avalanche danger has risen to MODERATE danger near treeline and above treeline. Increased SW winds last night may have created new wind slabs and loaded the Dec 4 buried surface hoar layer. LOW avalanche danger exists below treeline.

Click here to see the full forecast for 2018-12-07
December 7, 2018 at 6:50

LOW avalanche danger exists for all elevations. Normal caution is advised.

Click here to see the full forecast for 2018-12-06
December 6, 2018 at 6:45

Low avalanche danger is expected throughout the forecast area today.  Buried surface hoar exists under 3-5'' of storm snow from yesterday in many areas, but this small amount of additional load is not enough to warrant an avalanche concern at this time.  Normal caution is advised in the backcountry today.

Click here to see the full forecast for 2018-12-05
December 5, 2018 at 6:59

Moderate Avalanche danger will exist throughout the forecast region today due to a persistent slab avalanche problem.  Widespread surface hoar has been reported throughout the area this past week.  Light amounts of new snow occurred overnight and are expected into tomorrow.  Most avalanches associated with this buried surface hoar are expected to be small, but even small avalanches can have severe consequences with our early season snow coverage.  Evaluate snow and terrain carefully today, identify areas of concern.    

Click here to see the full forecast for 2018-12-04
December 4, 2018 at 6:59

The avalanche danger will remain at MODERATE today due to the possibility of unstable storm slabs still lingering in some areas. Significant uncertainty remains concerning these storm slabs. If any doubts exist about the stability of a slope, avoid it and move on to something lower angle with less uncertainty. New snow expected tonight may allow storm slabs to become more widespread.

Click here to see the full forecast for 2018-12-03
December 3, 2018 at 6:57

MODERATE avalanche danger exists at all elevations today. Human triggered avalanches remain possible. Some unstable storm slabs and wind slabs may still linger in some areas. If any doubts exist about the stability of a slope, avoid it and move on to something lower angle with less uncertainty.

Click here to see the full forecast for 2018-12-02
December 2, 2018 at 6:48

MODERATE avalanche danger exists at all elevations today due to lingering wind slabs and possibly some remaining storm slabs. Human triggered avalanches will remain possible today. If any doubts exist about the stability of a slope, avoid it and move on to something lower angle with less uncertainty.

Click here to see the full forecast for 2018-12-01
December 1, 2018 at 6:52

Avalanche danger will quickly rise to CONSIDERABLE danger this morning at all elevations as new wind slab and storm slab avalanche problems develop. Anticipate areas of unstable snow both above and below treeline today. Snowpack instability is expected to increase rapidly. 

Click here to see the full forecast for 2018-11-30
November 30, 2018 at 6:42

Areas of MODERATE avalanche danger exist near treeline and above treeline due to recently formed wind slabs. Below treeline, avalanche danger is LOW. Avalanche danger is expected to increase on Saturday at all elevations.

Click here to see the full forecast for 2018-11-29
November 29, 2018 at 6:50

High Avalanche Danger will exist today as heavy snowfall with gale force winds impact our forecast region.  Wind slab and storm slab avalanche problems will become very likely today in near treeline and above treeline terrain where previous snow cover existed.  Considerable Avalanche danger will exist in below treeline terrain at lower elevations with minimal previous snow cover.  Dangerous avalanche conditions will exist today, travel in avalanche terrain is not recommended.

Click here to see the full forecast for 2018-11-27
November 27, 2018 at 14:18

Early Season Conditions Update #2

Ongoing periods of precipitation are expected through the end of the week with several feet of new snow possible over the mid and upper elevations. Early season conditions exist along with some avalanche concerns. Daily avalanche advisories will begin on Nov 29 if the storms materialize as forecast. 

Click here to see the full forecast for 2018-11-21
November 21, 2018 at 9:03

Early Season Conditions Update #1

Our first series of winter storms for the season are approaching our region today through Saturday.  In areas that receive the most snowfall, isolated wind slabs and minor loose wet avalanches could become possible.  Practice safe travel protocols when in or near avalanche terrain.  Daily avalanche advisories will begin as the snowpack builds.  

Click here to see the full forecast for 2018-11-07
November 7, 2018 at 11:36

Stoked for winter. Getting things up and running.

Click here to see the full forecast for 2018-10-08
October 8, 2018 at 11:55

Starting to think about winter? So are we. The forecasters are currently working on continuing education at ISSW. SAC would love to see you at the upcoming California Avalanche Workshop on Oct 20th. Check the events page for details and registration.

Click here to see the full forecast for 2018-04-23
April 23, 2018 at 5:43

General Spring Avalanche Statement

We have stopped issuing daily avalanche advisories for the 2017-2018 season. A big thanks to all who supported the avalanche center this season. Avalanche activity will invariably occur this spring. Continued daily wet snow melt-freeze cycles will occur and additional storm cycles may impact the forecast area. Some information and resources to aid in trip planning and decision making have been assembled on the advisory page.

Click here to see the full forecast for 2018-04-22
April 22, 2018 at 6:32

Areas of MODERATE avalanche danger will exist today at all elevations. A loose wet avalanche problem will develop quickly this morning in areas where a poor snow surface refreeze occurred last night. Avoid travel in or below avalanche terrain on slopes with marginally supportable to unsupportable wet snow conditions or on slopes where roller balls are occurring. This is the last avalanche advisory of the 2017/2018 season.

Click here to see the full forecast for 2018-04-21
April 21, 2018 at 6:38

Areas of MODERATE avalanche danger will exist today at all elevations as a loose wet avalanche problem occurs in response to daytime warming and snow surface melt. Avoid travel in or below avalanche terrain on slopes with marginally supportable to unsupportable wet snow conditions or on slopes where roller balls are occurring.

Click here to see the full forecast for 2018-04-20
April 20, 2018 at 6:51

CONSIDERABLE avalanche danger will develop today at all elevations as rapid warming of recent storm snow creates a loose wet avalanche problem. Avoid travel in or below avalanche terrain on slopes with marginally supportable to unsupportable wet snow conditions or on slopes where roller balls are occurring.

Click here to see the full forecast for 2018-04-19
April 19, 2018 at 6:57

Periods of intense April sun this morning may cause enough warming for some small loose wet instabilities to form in isolated areas. MODERATE avalanche danger would result from this expected warming. If the forecasted cloud cover materializes sooner than expected, loose wet instabilities may be unlikely and less avalanche danger would exist. 

Click here to see the full forecast for 2018-04-18
April 18, 2018 at 6:56

MODERATE avalanche danger could exist at all elevations today due to periods of sunshine causing rapid warming of the recent snow. Any amount of April sun could cause conditions to change in a matter of minutes and allow loose wet avalanches to become possible on sun-exposed slopes. Once any signs of warming snow or wet snow exist it is time to move to colder aspects, lower angle slopes, or switch an activity that does not involve snow.

Click here to see the full forecast for 2018-04-17
April 17, 2018 at 7:00

MODERATE avalanche danger exists at all elevations today due to rapid warming allowing loose wet avalanches to become possible and lingering wind slabs on wind-loaded slopes. The April sun will help destabilize the snowpack and conditions could change in a matter of minutes once the sun hits the new snow. Once any signs of warming snow or wet snow exist it is time to move to colder aspects, lower angle slopes, or switch an activity that does not involve snow.

Click here to see the full forecast for 2018-04-16
April 16, 2018 at 6:48

CONSIDERABLE avalanche danger exists near treeline and above treeline today. MODERATE avalanche danger exists below treeline. Today's wind slab and storm slab avalanche problems have the potential to be exacerbated by rapid warming. Loose wet avalanches are unlikely today, but could become an issue if the sun comes out from behind the clouds. The avalanche situation could be fairly complex in the backcountry today. If in doubt, seek low angle terrain without steeper terrain above.

Click here to see the full forecast for 2018-04-15
April 15, 2018 at 6:48

MODERATE avalanche danger will exist for most of today at all elevations due to a loose wet avalanche problem. As new snowfall and wind impact the forecast area this evening, avalanche danger will increase to CONSIDERABLE danger near treeline and above treeline due to a wind slab avalanche problem.

Click here to see the full forecast for 2018-04-14
April 14, 2018 at 6:49

MODERATE avalanche danger will exist at all elevations today as a loose wet avalanche problem develops in response to daytime warming. Monitor snow surface conditions and avoid travel in or below avalanche terrain in areas where the snow surface is marginally supportable to unsupportable, where human triggered roller balls are occurring, or where loose wet avalanches are actively occurring.

Click here to see the full forecast for 2018-04-13
April 13, 2018 at 6:59

The avalanche danger is MODERATE today. Rapid warming will make loose wet avalanches a more widespread problem today. In addition to the loose wet avalanches that are possible today, some small wind slabs may exist near ridgelines. 

Click here to see the full forecast for 2018-04-12
April 12, 2018 at 6:50

MODERATE avalanche danger exists at all elevations due to wind slab problems and some possible storm slab avalanche problems. Human triggered slab avalanche activity will be possible today. If less clouds develop than forecasted today, wind slab and storm slab avalanches may be easier to trigger on sun-expsosed slopes and some loose wet instabilities could also form.

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