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., 03/19/2019
E.g., 03/19/2019
E.g., 03/19/2019
Date the forecast was published:sort descending Bottom Line
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 2018-12-24
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 2018-12-25
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 2018-12-26
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 2018-12-27
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 2018-12-28
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 2018-12-29
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 2018-12-30
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 2018-12-31
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 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 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 2019-01-04
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 2019-01-05
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 2019-01-06
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 2019-01-07
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 2019-01-08
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 2019-01-09
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 2019-01-10
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 2019-01-11
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 2019-01-12
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 2019-01-13
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 2019-01-14
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 2019-01-15
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 2019-01-16
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 2019-01-17
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 2019-01-18
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 2019-01-19
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 2019-01-20
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 2019-01-21
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 2019-01-22
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 2019-01-23
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 2019-01-24
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 2019-01-25
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 2019-01-26
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 2019-01-27
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 2019-01-28
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 2019-01-29
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 2019-01-30
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 2019-01-31
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 2019-02-01
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 2019-02-02
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 2019-02-03
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 2019-02-04
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 2019-02-05
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 2019-02-06
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 2019-02-07
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 2019-02-08
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 2019-02-09
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 2019-02-09
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 2019-02-10
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 2019-02-11
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 2019-02-12
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 2019-02-13
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 2019-02-14
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 2019-02-15
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 2019-02-16
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 2019-02-17
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 2019-02-18
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 2019-02-19
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 2019-02-20
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 2019-02-21
February 21, 2019 at 6:59

In near and above treeline terrain, the avalanche danger is MODERATE today due to the potential for wind slabs in some terrain. Below treeline the avalanche danger is LOW.

Click here to see the full forecast for 2019-02-22
February 22, 2019 at 6:51

A few areas of MODERATE avalanche danger linger near treeline and above treeline due to small wind slabs. Below treeline, LOW avalanche danger continues.

Click here to see the full forecast for 2019-02-23
February 23, 2019 at 6:45

Avalanche danger is LOW for all elevations. Watch for isolated areas of wind slab instability if blowing and drifting snow is encountered.

Click here to see the full forecast for 2019-02-24
February 24, 2019 at 6:52

MODERATE avalanche danger will exist due to a wind slab avalanche problem in near and above treeline terrain.  Human triggered wind slab avalanches will be possible today.  Low avalanche danger will continue in below treeline areas.

Click here to see the full forecast for 2019-02-25
February 25, 2019 at 6:50

MODERATE avalanche danger will exist in near and above treeline terrain due to a wind slab avalanche problem.  Human triggered wind slab avalanches remain possible.  Low avalanche danger will continue in protected below treeline terrain.  Avalanche danger is expected to dramatically increase this evening.  This forecast is good for 12 hours and will be updated by 7pm.

Click here to see the full forecast for 2019-02-25
February 25, 2019 at 18:00

A major Pacific storm will impact our forecast region tonight through Thursday.  HIGH avalanche danger will exist at all elevations throughout the night due to wind slab and storm slab avalanche problems.  Travel in, near, or below avalanche terrain is not recommended.

Click here to see the full forecast for 2019-02-26
February 26, 2019 at 7:00

Gale force winds and periods of high-intensity snowfall (especially tonight) will keep HIGH avalanche danger in near and above treeline terrain. The avalanche danger is CONSIDERABLE in below treeline terrain. Avalanche activity is very likely. Travel in avalanche terrain is not recommended. 

Click here to see the full forecast for 2019-02-27
February 27, 2019 at 6:57

HIGH avalanche danger continues in near treeline and above treeline areas due to a wind slab avalanche problem. CONSIDERABLE avalanche danger continues below treeline due to a storm slab avalanche problem and isolated wind slabs. Natural and human triggered avalanche activity is expected. Travel in near treeline and above treeline avalanche terrain is not recommended.

Click here to see the full forecast for 2019-02-28
February 28, 2019 at 6:50

CONSIDERABLE avalanche danger exists at all elevations due to a combination of wind slab, storm slab, and loose wet avalanche problems. Human triggered avalanches should not be a surprise to backcountry travelers today.

Click here to see the full forecast for 2019-03-01
March 1, 2019 at 6:54

MODERATE avalanche danger will exist at all elevations with wind slab and loose wet avalanche problems.  Periods of intense sunshine along with rapid warming could increase the amount of avalanche activity today.  Avalanche danger is expected to rise tomorrow as another storm impacts our forecast area.

Click here to see the full forecast for 2019-03-02
March 2, 2019 at 6:50

Another Pacific storm will impact our forecast region today and into Sunday.  CONSIDERABLE avalanche danger will exist due to wind slab, storm slab, and loose wet avalanche problems at all elevations.  Natural and human triggered avalanches will be likely today.

Click here to see the full forecast for 2019-03-03
March 3, 2019 at 6:48

MODERATE avalanche danger exists at all elevations today due to wind slab and loose wet avalanche problems.

Click here to see the full forecast for 2019-03-04
March 4, 2019 at 6:46

MODERATE avalanche danger continues at all elevations due to lingering wind slab and expected loose wet avalanche problems today.

Click here to see the full forecast for 2019-03-05
March 5, 2019 at 6:48

MODERATE avalanche danger will exist due to wind slab and loose wet avalanche problems as another warm storm impacts our forecast area starting this afternoon.  Human triggered avalanche activity remains possible.

Click here to see the full forecast for 2019-03-06
March 6, 2019 at 6:58

CONSIDERABLE avalanche danger will exist at all elevations due to wind slab, storm slab, and loose wet avalanche problems.  Dangerous avalanche conditions could occur with natural and human triggered avalanches likely.   

Click here to see the full forecast for 2019-03-07
March 7, 2019 at 6:59

MODERATE avalanche danger exists at all elevations today due to wind slab and storm slab avalanche problems. Human-triggered avalanches large enough to have consequences remain possible today. If the clouds part today, the strong March sunshine could exacerbate the existing avalanche problems and could allow wet snow instabilities to form. 

Click here to see the full forecast for 2019-03-08
March 8, 2019 at 6:59

Wind slab avalanche problems will keep the avalanche danger at MODERATE in near and above treeline terrain today. Human-triggered avalanches large enough to have consequences are possible. 

Click here to see the full forecast for 2019-03-09
March 9, 2019 at 6:59

The avalanche danger remains MODERATE in near and above treeline terrain due to the possibility of lingering wind slab avalanche problems. Human-triggered avalanches large enough to have consequences may remain possible in some areas. 

Click here to see the full forecast for 2019-03-10
March 10, 2019 at 6:56

A wind slab avalanche problem is expected to continue today in near treeline and above treeline areas. MODERATE avalanche danger exists near and above treeline. LOW avalanche danger exists below treeline.

Click here to see the full forecast for 2019-03-11
March 11, 2019 at 6:48

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

Click here to see the full forecast for 2019-03-12
March 12, 2019 at 6:49

MODERATE avalanche danger continues near treeline and above treeline due to the possibility of encountering unstable wind slabs. Below treeline avalanche danger is LOW.

Click here to see the full forecast for 2019-03-13
March 13, 2019 at 6:50

MODERATE avalanche danger will continue due to a wind slab avalanche problem in near and above treeline areas.  LOW avalanche danger exists in below treeline terrain.

Click here to see the full forecast for 2019-03-14
March 14, 2019 at 6:58

MODERATE avalanche danger exists at all elevations today. Wind slab and loose wet avalanche problems are possible. Either of these problems could have consequences for backcountry travelers.

Click here to see the full forecast for 2019-03-15
March 15, 2019 at 6:59

MODERATE avalanche danger exists at all elevations today mainly due to loose wet avalanche problems. An unlikely but not impossible wind slab problem may still linger in some isolated places as well.

Click here to see the full forecast for 2019-03-16
March 16, 2019 at 6:58

LOW avalanche danger will exist at all elevations this morning while the snowpack remains frozen. As the overnight refreeze melts, the danger will increase to MODERATE at all elevations due to the possibility of loose wet avalanche problems. 

Click here to see the full forecast for 2019-03-17
March 17, 2019 at 6:41

LOW avalanche danger early this morning will give way to MODERATE avalanche danger at all elevations today as a loose wet avalanche problem develops in response to rapid daytime warming.

Click here to see the full forecast for 2019-03-18
March 18, 2019 at 6:47

LOW avalanche danger early this morning will give way to MODERATE avalanche danger at all elevations today as a loose wet avalanche problem develops in response to rapid daytime warming.

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