The last avalanche forecast for the 2023-2024 season posted on April 21st. Thank you to all who contributed to the avalanche center this season through observations, volunteer time, and/or financial contributions.
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.
Date the forecast was published: | Bottom Line | |
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Click here to see the full forecast for 2016-03-21 |
March 21, 2016 at 6:46 MODERATE avalanche danger continues for all elevations and aspects on slopes 35 degrees and steeper. Wind slabs are building in near treeline and above treeline areas on NW-N-NE-E-SE aspects. Rain on snow is keeping the possibility of loose wet avalanche activity ongoing. Increasing avalanche danger will occur this evening through the overnight hours with CONSIDERABLE avalanche danger expected and HIGH avalanche danger possible. The likelihood of natural and human triggered slab avalanches will steadily increase today and tonight. |
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Click here to see the full forecast for 2016-03-20 |
March 20, 2016 at 6:48 MODERATE avalanche danger exists today for all aspects both above and below treeline on slopes 35 degrees and steeper due to expected poor snow surface refreeze last night and rain on snow this afternoon. Increasingly hazardous avalanche conditions are expected this evening into tomorrow as wind slabs begin to form in near and above treeline areas on NW-N-NE-E-SE aspects. |
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Click here to see the full forecast for 2016-03-19 |
March 19, 2016 at 6:55 Daytime warming will create enough wet snow on sun-exposed E-SE-S-SW-W aspects for MODERATE avalanche danger to develop on slopes steeper than 35 degrees at all elevations. Loose wet snow avalanches including roller balls, pinwheels, and point releases will be possible today. Most of these loose wet snow instabilities should remain small, but some of them could entrain enough snow to pose a threat to backcountry travelers especially those that occur around terrain traps. |
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Click here to see the full forecast for 2016-03-18 |
March 18, 2016 at 7:00 MODERATE avalanche danger will form on sun exposed E-SE-S-SW-W aspects steeper than 35 degrees at all elevations as daytime warming creates wet snow on these aspects. Loose wet snow avalanches including roller balls, pinwheels, and point releases will be possible today. While cornice failure has become unlikely, it is not impossible and today's warming could also weaken some of the large overhanging cornices that exist on the NW-N-NE-E-SE aspects along exposed ridgelines on isolated terrain features as well. |
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Click here to see the full forecast for 2016-03-17 |
March 17, 2016 at 7:00 MODERATE avalanche danger will form on sun exposed E-SE-S-SW-W aspects steeper than 35 degrees as wet snow forms on these aspects due to daytime warming. Loose wet snow avalanches including roller balls, pinwheels, and point releases will be possible today. This warming will also weaken the large overhanging cornices that exist on the NW-N-NE-E-SE aspects along exposed ridgelines making it possible for them to fail as well. |
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Click here to see the full forecast for 2016-03-16 |
March 16, 2016 at 6:55 Moderate avalanche danger continues due to ongoing wind slab problems on NW-N-NE-E-SE aspects near and above treeline on slopes steeper than 35 degrees. As daytime warming occurs, avalanche danger will also increase to moderate on E-SE-S-SW-W aspects at all elevations due to the possibility of loose wet avalanches. Human triggered avalanches continue to be possible today. |
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Click here to see the full forecast for 2016-03-15 |
March 15, 2016 at 6:55 Moderate avalanche danger exists on NW-N-NE-E-SE aspects near and above treeline on slopes steeper than 35 degrees due to ongoing wind slab problems. As daytime warming occurs, moderate avalanche danger will also become possible on E-SE-S-SW-W aspects at all elevations due to loose wet avalanches. Evaluate snow and terrain carefully, identify features of concern. |
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Click here to see the full forecast for 2016-03-14 |
March 14, 2016 at 6:50 Areas of CONSIDERABLE avalanche danger are expected today near treeline and above treeline on NW-N-NE-E-SE aspects on slopes 35 degrees and steeper due to ongoing wind slab problems. For all other areas, MODERATE avalanche danger exists on slopes 35 degrees and steeper due to potential storm slabs. Loose wet avalanche problems may or may not develop this afternoon on E-SE-S-SW-W aspects depending on cloud cover. Natural and human triggered avalanches remain possible to likely today. |
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Click here to see the full forecast for 2016-03-13 |
March 13, 2016 at 7:05 HIGH avalanche danger is expected today near treeline and above treeline on NW-N-NE-E-SE aspects on slopes 35 degrees and steeper, especially along the Sierra Crest due to ongoing formation of wind slabs and storm slabs. For all other areas CONSIDERABLE avalanche danger exists on slopes 35 degrees and steeper. Natural and human triggered avalanches are expected today and should not be a surprise to backcountry travelers.Travel in or below avalanche terrain is not recommended. Large destructive avalanches may occur. |
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Click here to see the full forecast for 2016-03-12 |
March 12, 2016 at 7:00 MODERATE avalanche danger exists on slopes steeper than 35 degrees on near and above treeline NW-N-NE-E-SE aspects due newly formed wind slabs. Most wind slabs will exist along the Sierra Crest above 7500 ft. where more snow accumulated. Evaluate snow and terrain carefully, and identify areas where avalanche problems exist. The avalanche danger will increase quickly as more snow and wind impact the region starting this evening with wind slabs and storm slabs becoming more problematic during the storm. |
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Click here to see the full forecast for 2016-03-11 |
March 11, 2016 at 7:01 MODERATE avalanche danger exists on slopes steeper than 35 degrees on all aspects due to the possibility of loose wet avalanches below 8500 ft. and wind slabs on near and above treeline W-NW-N-NE-E-SE aspects above 8500 ft. Some human triggered avalanches will be possible today. Evaluate snow and terrain carefully, and identify areas where avalanche problems might exist. |
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Click here to see the full forecast for 2016-03-10 |
March 10, 2016 at 6:59 MODERATE avalanche danger exists on slopes steeper than 35 degrees on all aspects due to the possibility of loose wet avalanches in near and below treeline terrain and wind slabs in near and above treeline terrain above 8500 ft. Some human triggered avalanches will be possible today. Evaluate snow and terrain carefully, and identify areas where avalanche problems might exist. |
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Click here to see the full forecast for 2016-03-09 |
March 9, 2016 at 6:52 Moderate avalanche danger exists due to the possibility of wind slabs and loose wet avalanches. Ongoing SW winds could continue to build wind slabs on NW-N-NE-E-SE aspects near and above treeline. Loose wet avalanches will become possible throughout the day as temperatures warm and snow levels increase on all aspects below treeline. Evaluate snow and terrain carefully, identify areas of concern. |
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Click here to see the full forecast for 2016-03-08 |
March 8, 2016 at 6:56 Early this morning, moderate avalanche danger exists on all aspects and elevations due to the continuing possibility of wind slabs and storm slabs. As sunny skies and solar radiation affect the snowpack later this morning, avalanche danger will rise to considerable on E-SE-S-SW-W aspects due to loose wet avalanches and the possibility of wet slabs. Increasing SW-W winds throughout the day will form new wind slabs on NW-N-NE-E-SE-S aspects near and above treeline. |
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Click here to see the full forecast for 2016-03-07 |
March 7, 2016 at 6:56 On the heels of another period of HIGH avalanche danger last night, CONSIDERABLE avalanche danger will exist today near and above treeline on all aspects on slopes 35 degrees and steeper due to ongoing wind slab formation. In wind protected areas below treeline, MODERATE avalanche danger exists on slopes 35 degrees and steeper due to potential storm slabs. Large human triggered avalanches remain likely today. Natural avalanches are possible. |
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Click here to see the full forecast for 2016-03-06 |
March 6, 2016 at 6:45 Following a period of HIGH avalanche danger last night, CONSIDERABLE avalanche danger will exist today near and above treeline on all aspects on slopes 35 degrees and steeper due to newly formed wind slabs. In wind protected areas below treeline, MODERATE avalanche danger exists on slopes 35 degrees and steeper due to storm slabs. Large human triggered avalanches are likely today. Another period of HIGH avalanche danger is expected tonight into early tomorrow morning with natural avalanches likely. |
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Click here to see the full forecast for 2016-03-05 |
March 5, 2016 at 7:00 MODERATE avalanche danger exists on all aspects and elevations today due to newly formed wind slabs on wind loaded slopes above 8000 ft. and rain on snow creating loose wet snow instabilities on slopes below 8000 ft. Human triggered avalanches will be possible today. Expect the avalanche danger to rise quickly as the next storm impacts the region tonight. Periods of HIGH avalanche danger may occur tonight as natural wind slab avalanches and storm slab avalanches become likely after midnight. |
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Click here to see the full forecast for 2016-03-04 |
March 4, 2016 at 7:01 Increased cloud cover and winds combined with cooler daytime highs should keep the avalanche danger LOW for all elevations and aspects today. Some small loose wet snow instabilities may still form on isolated terrain features on slopes that receive rain today. Use normal caution in the backcountry. As a series of storms starts impacting the forecast area this afternoon and evening, the avalanche danger will increase quickly and avalanche problems like wind slabs and storm slabs will begin to form. |
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Click here to see the full forecast for 2016-03-03 |
March 3, 2016 at 6:57 The avalanche danger will remain LOW today. As the day warms up, some small loose wet snow instabilities may still form on isolated terrain features below 8500 ft. on sun-exposed aspects, on slopes where wet snow exists on top of drier snow, or on slopes that receive rain today. Use normal caution when traveling in the backcountry. |
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Click here to see the full forecast for 2016-03-02 |
March 2, 2016 at 6:50 Through the morning hours, avalanche danger will be Low on all aspects and elevations. As daytime warming occurs, avalanche danger will rise to Moderate on E-SE-S-SW-W aspects on slopes steeper than 35 degrees due to the possibility of loose wet avalanches. Isolated areas of loose wet instabilities may also form on NW-N-NE aspects. |
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Click here to see the full forecast for 2016-03-01 |
March 1, 2016 at 6:56 Low avalanche danger exists through the early morning hours on all aspects and elevations. As daytime warming occurs, avalanche danger will rise to Moderate on E-SE-S-SW-W aspects on slopes steeper than 35 degrees due to the possibility of loose wet instabilities. |
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Click here to see the full forecast for 2016-02-29 |
February 29, 2016 at 6:51 Early this morning, avalanche danger is LOW for all elevations and aspects. Areas of MODERATE avalanche danger are expected to form in response to daytime warming at all elevations on E-SE-S-SW-W aspects on slopes 35 degrees and steeper due to the possibility of loose wet avalanches. Isolated areas of loose wet instability may form on NW-N-NE aspects as well. |
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Click here to see the full forecast for 2016-02-28 |
February 28, 2016 at 6:53 Early this morning, LOW avalanche danger exists for all elevations and aspects. Areas of MODERATE avalanche danger are exected to form at all elevations on SE-S-SW aspects on slopes 35 degrees and steeper in response to daytime warming. Isolated areas of loose wet instability may occur on W-NW-N-NE-E aspects as well. |
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Click here to see the full forecast for 2016-02-27 |
February 27, 2016 at 7:00 The avalanche danger should remain LOW today due to increased cloud cover and winds, slightly cooler temperatures, and a prolonged melt-freeze cycle. Some small loose wet avalanches could still form on isolated terrain features on any aspect where wet snow exists. If the forecasted cloud cover does not materialize, the avalanche danger could rise to MODERATE on sun exposed slopes at all elevations due to loose wet avalanche issues. |
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Click here to see the full forecast for 2016-02-26 |
February 26, 2016 at 7:01 This morning the avalanche danger remains LOW for all elevations and aspects. MODERATE avalanche danger will form on E-SE-S-SW-W aspects steeper than 35 degrees as human triggered loose wet avalanches become possible. Some small isolated wet snow instabilities may also form on northerly aspects. Most loose wet snow instabilities should remain small today but some could be large enough to pose a danger to backcountry travelers especially on slopes that receive direct sun and less wind today. |
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Click here to see the full forecast for 2016-02-25 |
February 25, 2016 at 7:37 This morning LOW avalanche danger exists on all elevations and aspects. MODERATE avalanche danger will form on E-SE-S-SW-W aspects steeper than 35 degrees as human triggered loose wet avalanches become possible due to daytime warming. Small roller balls, pinwheels, and loose wet point releases will represent the majority of the loose wet instabilities today but some of them could be large enough to pose a danger to backcountry travelers. |
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Click here to see the full forecast for 2016-02-24 |
February 24, 2016 at 6:48 Avalanche danger is low for all aspects and elevations through the early morning hours. As daytime warming occurs, avalanche danger will rise to Moderate on E-SE-S-SW-W aspects on slopes steeper than 35 degrees due to the possibility of loose wet avalanches. Isolated loose wet instability may occur on some NW-N-NE aspects as well. |
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Click here to see the full forecast for 2016-02-23 |
February 23, 2016 at 6:52 Avalanche danger will be Low during the early morning hours. As daytime warming occurs, Moderate avalanche danger could become possible on E-SE-S-SW-W aspects on slopes steeper than 35 degrees due to loose wet avalanches. Small wind slabs may form on SE-S-SW-W-NW aspects near and above treeline due to recent N-NE winds. |
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Click here to see the full forecast for 2016-02-22 |
February 22, 2016 at 6:45 Early this morning, LOW avalanche danger exists for all elevations and aspects. Small wind slabs may form today near and above treeline on SE-S-SW-W-NW aspects. Areas of MODERATE avalanche danger may form in response to daytime warming mainly on E-SE-S-SW-W aspects on slopes 35 degrees and steeper due to the possibility of loose wet avalanches. Isolated loose wet instability may occur in some areas on NW-N-NE aspects as well. |
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Click here to see the full forecast for 2016-02-21 |
February 21, 2016 at 6:46 Early this morning, LOW avalanche danger exists for all elevations and aspects. Areas of MODERATE avalanche danger will form in response to daytime warming mainly on E-SE-S-SW-W aspects on slopes 35 degrees and steeper due to the possibility of loose wet avalanches. Isolated loose wet instability may occur in some areas on NW-N-NE aspects as well. |
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Click here to see the full forecast for 2016-02-20 |
February 20, 2016 at 6:53 MODERATE avalanche danger still exists on wind loaded near and above treeline NW-N-NE-E-SE aspects steeper than 35 degrees due to lingering wind slabs. Depending on the amount of daytime warming that occurs today, enough wet snow may form on the E-SE-S-SW-W aspects steeper than 35 degrees for the avalanche danger to rise to MODERATE on those slopes as well due to loose wet snow instabilities. Human triggered avalanches remain possible today. |
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Click here to see the full forecast for 2016-02-19 |
February 19, 2016 at 6:59 Pockets of CONSIDERABLE avalanche danger still linger on wind loaded near and above treeline NW-N-NE-E-SE aspects steeper than 35 degrees due wind slabs. MODERATE avalanche danger exists on all other slopes steeper than 35 degrees due to a combination of wind slabs and isolated storm slabs. Large human triggered avalanches remain possible today and may remain likely in some areas. Identify where wind slabs and lingering isolated storm slabs exist and avoid them and their run out zones. |
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Click here to see the full forecast for 2016-02-18 |
February 18, 2016 at 7:00 UPDATED at 8:30 am. CONSIDERABLE avalanche danger exists on NW-N-NE-E-SE aspects steeper than 35 degrees at all elevations with MODERATE danger elsewhere due wind slabs and storm slabs. Large human triggered avalanches that run long distances and involve large amounts of snow are likely today and natural avalanches may remain possible this morning. Careful snowpack evaluation, cautious route-finding and conservative decision-making are essential. Identify where wind slabs and storm slabs exist and avoid them and their run out zones. |
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Click here to see the full forecast for 2016-02-17 |
February 17, 2016 at 6:50 Avalanche danger remains low on all aspects and elevations through the daytime hours today. Normal caution is advised. As the incoming storm arrives, avalanche danger will quickly rise into tonight and through tomorrow. Natural avalanche activity will become likely this evening and into the early morning hours. |
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Click here to see the full forecast for 2016-02-16 |
February 16, 2016 at 6:33 Avalanche danger for today is Low on all aspects and elevations. In the afternoon hours, isolated human triggered loose wet avalanches could become possible on E-SE-S-SW aspects on slopes steeper than 37 degrees. Normal caution is advised. |
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Click here to see the full forecast for 2016-02-15 |
February 15, 2016 at 6:49 LOW avalanche danger continues for all elevations and aspects. Isolated human triggered loose wet avalanches may occur this afternoon on E-SE-S-SW aspects on slopes 37 degrees and steeper. Normal caution is advised. |
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Click here to see the full forecast for 2016-02-14 |
February 14, 2016 at 6:48 LOW avalanche danger continues for all elevations and aspects. Human triggered loose wet avalanches may occur this afternoon in isolated areas on E-SE-S-SW aspects on slopes 37 degrees and steeper. Normal caution is advised. |
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Click here to see the full forecast for 2016-02-13 |
February 13, 2016 at 6:47 LOW avalanche danger is expected today for all elevations and aspects. Human triggered loose wet avalanches could still occur in isolated areas this afternoon on E-SE-S-SW aspects on slopes 37 degrees and steeper. Normal caution is advised. |
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Click here to see the full forecast for 2016-02-12 |
February 12, 2016 at 6:40 LOW avalanche danger exists this morning while the snowpack remains frozen. As the day warms up and last night's refreeze melts, pockets of MODERATE danger will quickly form slopes steeper than 35 degrees on E-SE-S-SW aspects due to the possibility of loose wet avalanches. Small human triggered roller balls, pinwheels, and point-releases should comprise most of the loose wet activity, but some loose wet avalanches could involve enough snow to cause problems for backcountry travelers. |
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Click here to see the full forecast for 2016-02-11 |
February 11, 2016 at 6:58 This morning the avalanche danger is LOW. As the day warms up, pockets of MODERATE danger will quickly form on E-SE-S-SW aspects due to the possibility of loose wet avalanches. Some small loose wet issues may form on near and below treeline N-NE aspects in isolated or extreme terrain. Small human triggered roller balls, pinwheels, and point-releases should comprise most of the loose wet activity, but some loose wet avalanches could involve enough snow to cause problems for backcountry travelers. |
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Click here to see the full forecast for 2016-02-10 |
February 10, 2016 at 6:44 Low avalanche danger will exist on all aspects and elevations in the early morning hours. As daytime warming begins, pockets of Moderate avalanche danger will become possible on E-SE-S-SW aspects at all elevations due to loose wet avalanche instabilities. On W-NW-N-NE aspects at all elevations, avalanche danger will remain Low throughout the day. |
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Click here to see the full forecast for 2016-02-09 |
February 9, 2016 at 6:58 Early this morning, low avalanche danger exists on all aspects and elevations. As daytime warming begins, pockets of moderate avalanche danger will form on E-SE-S-SW aspects at all elevations due to loose wet avalanche problems. Avalanche danger will remain low on W-NW-N-NE aspects at all elevations. |
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Click here to see the full forecast for 2016-02-08 |
February 8, 2016 at 6:46 Early this morning, LOW avalanche danger exists for all elevations and aspects. Pockets of MODERATE avalanche danger will form quickly in response to daytime warming on E-SE-S-SW aspects at all elevations on slopes 35 degrees and steeper. On W-NW-N-NE aspects, avalanche danger will remain LOW. Isolated wind slabs may exist above treeline on S-SW-W-NW-N aspects, but are not expected to be a widespread avalanche problem today. |
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Click here to see the full forecast for 2016-02-07 |
February 7, 2016 at 6:50 Early this morning, LOW avalanche danger exists for all elevations and aspects. Pockets of MODERATE avalanche danger will form quickly in response to daytime warming on SE-S-SW aspects at all elevations on slopes 35 degrees and steeper. On W-NW-N-NE-E aspects, avalanche danger will remain LOW with small, isolated human triggered loose wet avalanche activity unlikely but not impossible below 8,000' on slopes 35 degrees and steeper. |
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Click here to see the full forecast for 2016-02-06 |
February 6, 2016 at 6:56 LOW avalanche danger exists this morning. As the day warms up, some pockets of MODERATE danger may form on sun-exposed SE-S-SW aspects steeper than 35 degrees up to 9500 ft. due to the possibility of some small loose wet snow instabilities like pinwheels, roller-balls, and point release avalanches. Most of these loose wet snow instabilities should remain small and isolated, but a few could entrain enough snow to create issues for backcountry travelers on slopes that experience the most warming. |
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Click here to see the full forecast for 2016-02-05 |
February 5, 2016 at 6:56 This morning the avalanche danger is LOW on all aspects and elevations. Some pockets of MODERATE avalanche danger may form below 9000 ft. on sun-exposed SE-S-SW aspects steeper than 35 degrees as the day warms up, and some small loose wet snow instabilities become possible. The amount of warming that actually occurs today will dictate how widespread these possible wet snow instabilities may be. |
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Click here to see the full forecast for 2016-02-04 |
February 4, 2016 at 7:00 MODERATE avalanche danger may form on sun-exposed near and below treeline E-SE-S-SW-W aspects as well as on some above treeline SE-S-SW aspects due to the possibility of loose wet snow instabilities. Wet surface snow and small instabilities like pin wheels and roller balls can indicate that loose wet avalanches have become possible. The amount of warming that actually occurs today will dictate how widespread these possible wet snow instabilities may be. |
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Click here to see the full forecast for 2016-02-03 |
February 3, 2016 at 6:54 Avalanche danger remains Moderate on NW-N-NE-E-SE aspects near and above treeline due to potential wind slab avalanche problems. S-SW-W aspects at all elevations and all aspects below treeline are rated Low avalanche danger. Evaluate snow and terrain carefully and look for areas of unstable snow. |
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Click here to see the full forecast for 2016-02-02 |
February 2, 2016 at 6:55 Moderate avalanche danger exists on all aspects near treeline and above treeline due to existing wind slabs and new wind slab development due to shifting winds. Low avalanche danger exists on all aspects below treeline. Evaluate snow and terrain carefully, identify features of concern. |
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Click here to see the full forecast for 2016-02-01 |
February 1, 2016 at 6:58 MODERATE avalanche danger exists for all elevations and all aspects on slopes 35 degrees and steeper. New wind slabs formed near treeline and above treeline last night under gale force NE wind conditions. In wind protected areas below treeline, loose dry avalanche activity remains likely and small storm slabs remain possible. Don't let an absence of obvious clues of instability lull your party into a sense of security today. |
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Click here to see the full forecast for 2016-01-31 |
January 31, 2016 at 6:48 Upper end MODERATE avalanche danger exists today for all elevations and aspects on slopes 35 degrees and steeper due to a combination of newly formed wind slab, storm slab, and loose dry avalanche problems. Natural avalanche activity in not expected today, but isolated natural activity is certainly not out of the question. Human triggered avalanches are expected today and should not be a surprise to backcountry travelers. |
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Click here to see the full forecast for 2016-01-30 |
January 30, 2016 at 7:00 CONSIDERABLE avalanche danger exists in near and above treeline terrain on NW-N-NE-E-SE aspects on slopes steeper than 35 degrees due to newly formed wind slabs. MODERATE avalanche danger exists elsewhere. The largest wind slabs will exist above 8700 ft. where more snow has accumulated. Human triggered wind slab avalanches are likely today, and some small sluffs may be possible. People traveling in the backcountry should make careful snowpack evaluations and use cautious route-finding and conservative decision-making. |
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Click here to see the full forecast for 2016-01-29 |
January 29, 2016 at 6:59 CONSIDERABLE avalanche danger exists on all aspects and elevations on slopes steeper than 35 degrees due to a combination of wet snow instabilities caused by rain on snow and newly formed wind slabs at the upper elevations. Human triggered loose wet avalanches and wind slab avalanches are likely today and some isolated wet slab avalanches may be possible. People traveling in the backcountry should make careful snowpack evaluations, use cautious route-finding and conservative decision-making, and expect to get very wet. |
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Click here to see the full forecast for 2016-01-28 |
January 28, 2016 at 7:00 LOW avalanche danger exists on all elevations and aspects today. Some unstable snow could exist on isolated terrain features. As the next storm impacts the region tonight and tomorrow expect the avalanche danger to increase quickly. |
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Click here to see the full forecast for 2016-01-27 |
January 27, 2016 at 6:40 Avalanche danger remains low on all aspects and elevations. Isolated areas of instability may exist. Normal caution is advised. |
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Click here to see the full forecast for 2016-01-26 |
January 26, 2016 at 6:58 Avalanche danger is low on all aspects and elevations. Watch for unstable snow on isolated terrain features. Normal caution is advised. Small isolated wind slabs could form on SE-S-SW-W-NW aspects above treeline. Very isolated deep slab avalanches are unlikely but not impossible on N-NE-E aspects near treeline and below treeline. |
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Click here to see the full forecast for 2016-01-25 |
January 25, 2016 at 6:56 MODERATE avalanche danger is expected today above treeline on SE-S-SW-W-NW aspects on slopes 35 degrees and steeper in areas where new wind slabs form this morning. For all other areas, LOW avalanche danger exists. Normal caution is advised. Very isolated deep persistent slab avalanches are unlikely but not impossible in open near treeline and below treeline areas on N-NE-E aspects on slopes 32 degrees and steeper. |
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Click here to see the full forecast for 2016-01-24 |
January 24, 2016 at 6:59 Areas of MODERATE avalanche danger remain near and above treeline on NW-N-NE-E-SE aspects on slopes 35 degrees and steeper due to recently formed wind slabs. Below treeline, there is LOW avalanche danger with pockets of MODERATE avalanche danger in open areas below treeline and near treeline on N-NE-E aspects on slopes 32 degrees and steeper due to deep persistent slabs. |
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Click here to see the full forecast for 2016-01-23 |
January 23, 2016 at 6:59 Human triggered avalanches are likely today on NW-N-NE-E aspects and some W and SE aspects at all elevations on slopes steeper than 32 degrees due to newly formed wind slabs and the possibility of deep persistent slabs. The avalanche danger is CONSIDERABLE today. Today's avalanches could be large and have severe consequences and may occur in areas traditionally considered safe especially in the case of the deep persistent slabs. Careful snowpack evaluation, cautious route-finding and conservative decision-making are essential. |
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Click here to see the full forecast for 2016-01-22 |
January 22, 2016 at 6:57 Despite becoming increasingly difficult to trigger, human triggered avalanches remain possible on some W-NW-N-NE-E-SE aspects at all elevations on slopes steeper than 32 degrees due to persistent slabs and old wind slabs. The avalanche danger is MODERATE today, but it will quickly increase to CONSIDERABLE due to added weight on the persistent slabs and new wind slabs resulting from more snow and wind impacting the region tonight and tomorrow. Some natural avalanche activity may start to occur during the night. |
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Click here to see the full forecast for 2016-01-21 |
January 21, 2016 at 7:00 Even though avalanches have become more difficult to trigger, human triggered avalanches remain possible on some NW-N-NE-E-SE aspects at all elevations due to lingering persistent slabs and wind slabs. The persistent slabs could occur on slopes steeper than 32 degrees, while the wind slabs would be more problematic on slopes steeper than 35 degrees. The avalanche danger is MODERATE today, but the consequences of a human triggered avalanche would be serious. Evaluate snow and terrain carefully; identify features of concern. |
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Click here to see the full forecast for 2016-01-20 |
January 20, 2016 at 6:54 Moderate avalanche danger exists on NW-N-NE-E-SE aspects, on slopes steeper than 32 degrees, at all elevations, due to wind slabs and persistent slabs. On S-SW-W aspects at all elevations, low avalanche danger exists. Human triggered avalanches are possible today. Evaluate snow and terrain carefully, identify features of concern. |
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Click here to see the full forecast for 2016-01-19 |
January 19, 2016 at 6:58 Moderate avalanche danger exists on all aspects and elevations through the morning hours. As the incoming storm intensifies by mid day, avalanche danger will rise to considerable. Wind slabs will develop on NW-N-NE-E-SE aspects near and above treeline and persistent slabs will be possible on N-NE-E aspects near treeline and below treeline on slopes 32 degrees or steeper. Natural avalanche activity will become possible this afternoon with human triggered avalanche activity possible to likely all day. |
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Click here to see the full forecast for 2016-01-18 |
January 18, 2016 at 7:02 CONSIDERABLE avalanche danger exists today both above treeline on NW-N-NE-E-SE aspects and near and below treeline on N-NE-E aspects on slopes 32 degrees and steeper due to a combination of wind slabs, storm slabs, and persistent slabs. For all other areas avalanche danger is MODERATE. Natural avalanche activity is possible during the morning hours. Human triggered avalanches will remain possible to likely all day. In some cases, avalanches could be large and destructive. |
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Click here to see the full forecast for 2016-01-17 |
January 17, 2016 at 7:01 MODERATE avalanche danger continues at all elevations on NW-N-NE-E-SE aspects on slopes 32 degrees and steeper due to a combination of persistent slabs and storm slabs. Human triggered avalanches remain a near daily occurrence within the forecast area. Identify the necessary differences between managing wind slab and persistent slab avalanche problems and adjust terrain selection and travel practices accordingly. Increasing avalanche danger is expected tonight into tomorrow morning. |
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Click here to see the full forecast for 2016-01-16 |
January 16, 2016 at 7:11 On slopes steeper than 32 degrees, MODERATE avalanche danger exists on NW-N-NE-E-SE aspects at all elevations due to lingering persistent slabs and wind slabs sitting on persistent weak layers. Large human triggered avalanches remain possible today. Unusual avalanche conditions exist. Avalanches on steeper slopes could be remotely triggered by a person standing in lower angle terrain or may be triggered in places traditionally considered safe. Evaluate snow and terrain carefully; identify features of concern. |
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Click here to see the full forecast for 2016-01-15 |
January 15, 2016 at 7:00 On slopes steeper than 30 degrees, CONSIDERABLE avalanche danger exists on NW-N-NE-E-SE aspects at all elevations due to a combination of wind slabs and persistent slabs. Large human triggered avalanches are likely and natural avalanches are possible. Unusual avalanche conditions exist. Avalanches on steeper slopes could be remotely triggered by a person standing in lower angle terrain or may be triggered in places traditionally considered safe. Careful snowpack evaluation, cautious route finding and conservative decision making are essential. |
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Click here to see the full forecast for 2016-01-14 |
January 14, 2016 at 7:02 On slopes steeper than 32 degrees, CONSIDERABLE avalanche danger still persists on NW-N-NE-E-SE aspects in near and above treeline terrain due to a combination of wind slabs and persistent slabs. Even though the window for natural avalanches may have passed, human triggered avalanches remain likely. Unusual avalanche conditions exist. Avalanches on steeper slopes could be remotely triggered by a person standing in lower angle terrain. Careful snowpack evaluation, cautious route finding and conservative decision making are essential. |
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Click here to see the full forecast for 2016-01-13 |
January 13, 2016 at 6:59 Considerable avalanche danger exists on NW-N-NE-E-SE aspects at all elevations due to persistent slabs and newly forming wind slabs. On S-SW-W aspects at all elevations Moderate avalanche danger exists. Careful snowpack evaluation, cautious route finding and conservative decision making are essential today. |
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Click here to see the full forecast for 2016-01-12 |
January 12, 2016 at 6:52 Pockets of Moderate avalanche danger exists on N-NE-E-SE aspects near treeline and below treeline due to the Jan 5 buried surface hoar layer. Persistant slabs are possible today in terrain where this weak layer occurs. In areas where this weak layer is absent, Low avalanche danger exists. Evaluate snow and terrain carefully, identify features of concern.
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Click here to see the full forecast for 2016-01-11 |
January 11, 2016 at 6:57 Unusual avalanche conditions persist with pockets of MODERATE avalanche danger in open areas at and below treeline on N-NE-E-SE aspects on slopes 35 degrees and steeper. Persistent slabs associated with the Jan 5 buried surface hoar layer exist in some areas. Where this weak layer is absent, LOW avalanche danger exists. Avoid steep terrain adjacent to areas of recent avalanche activity, even if the crown and debris are covered under a couple inches of new snow and now look old. |
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Click here to see the full forecast for 2016-01-10 |
January 10, 2016 at 6:59 Unusual avalanche conditions exist with pockets of MODERATE avalanche danger in open areas at and below treeline on N-NE-E-SE aspects on slopes 35 degrees and steeper. This is due to persistent slabs associated with the Jan 5 buried surface hoar layer. For all other areas, LOW avalanche danger exists. Avoid steep terrain adjacent to areas of recent avalanche activity, even if the crown and debis are covered under a couple inches of new snow and now look old. |
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Click here to see the full forecast for 2016-01-09 |
January 9, 2016 at 7:00 Human triggered avalanches remain possible today due to new wind slabs and old and new persistent slabs. Persistent slabs exist on open slopes in near and below treeline terrain on W-NW-N-NE-E aspects. Wind slabs will exist on wind loaded NW-N-NE-E-SE aspects in near and above treeline terrain. MODERATE avalanche danger exists in those areas on slopes 32 degrees and steeper. Remotely triggered avalanches and avalanches that propagate long distances are possible today especially in near and below treeline terrain. |
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Click here to see the full forecast for 2016-01-08 |
January 8, 2016 at 7:00 Human triggered avalanches remain possible today due to lingering wind slabs and storm slabs. MODERATE avalanche danger exists on all elevations on NW-N-NE-E-SE aspects on slopes 35 degrees and steeper. Evaluate snow and terrain carefully before committing to any slopes. |
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Click here to see the full forecast for 2016-01-07 |
January 7, 2016 at 7:02 Human triggered avalanches remain possible today due to lingering wind slabs and storm slabs. MODERATE avalanche danger exists on all elevations and aspects on slopes 35 degrees and steeper. Evaluate snow and terrain carefully before committing to any slopes. |
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Click here to see the full forecast for 2016-01-06 |
January 6, 2016 at 7:03 Considerable avalanche danger exists on all aspects and elevations today on slopes steeper than 32 degrees. Wind slabs and storm slabs have been forming since yesterday and will continue to grow in size and sensitivity. Storm slabs have shown the possibility for remote triggering and propagation across long distances. Natural avalanches are possible and human triggered avalanches are likely today. Dangerous avalanche conditions exist, cautious route finding and conservative decision making are essential today. |
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Click here to see the full forecast for 2016-01-05 |
January 5, 2016 at 6:54 Avalanche danger will rise to considerable today on slopes 32 degrees and steeper on all aspects and elevations due to wind slabs and storm slabs. Natural avalanches are possible and human triggered avalanches will be likely today. Areas of greatest danger will be along the Sierra Crest and South of Hwy. 50. For other areas avalanche danger will range from Moderate to Considerable. Dangerous avalanche conditions exist, cautious route finding and conservative decision making will be essential today. |
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Click here to see the full forecast for 2016-01-04 |
January 4, 2016 at 6:56 For most of today, LOW avalanche danger is expected to continue for all elevations and aspects. Minor wind slabs not large enough to bury or injure a person remain an issue near and above treeline on NW-N-NE aspects. As additional snowfall accumulates, wind slab size will increase and avalanche danger is expected to increase to MODERATE danger sometime late today or tonight with a further increase in avalanche danger expected during the day tomorrow. |
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Click here to see the full forecast for 2016-01-03 |
January 3, 2016 at 6:56 LOW avalanche danger continues for all elevations and aspects. Small wind slabs are a lingering issue today near and above treeline on NW-N-NE aspects. These wind slabs might remain sensitive to human triggering in isolated areas. Avalanche size is expected to remain too small to bury a person unless highly defined terrain traps are involved. Normal caution is advised. |
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Click here to see the full forecast for 2016-01-02 |
January 2, 2016 at 7:00 The avalanche danger remains LOW on all aspects and elevations. While avalanches remain unlikely, some unstable snow could linger on isolated terrain features. Small isolated avalanches can still have consequences depending on the terrain where they occur. Continue to use normal caution when traveling in the backcountry. |
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Click here to see the full forecast for 2015-12-31 |
December 31, 2015 at 6:53 This advisory will cover Dec. 31 and Jan. 1. The next update to the avalanche advisory will occur on Jan. 2 at 7:00 am. The avalanche danger remains low on all aspects and elevations. While avalanches remain unlikely, some unstable snow could linger on isolated terrain features. Continue to use normal caution when traveling in the backcountry. |
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Click here to see the full forecast for 2015-12-30 |
December 30, 2015 at 6:59 Avalanche danger remains low on all aspects and elevations. Changing wind directions over the last several days have redistributed snow near and above treeline. Watch for unstable snow on isolated terrain features. Normal caution is advised. |
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Click here to see the full forecast for 2015-12-29 |
December 29, 2015 at 6:41 Avalanche danger is low for all aspects and elevations. Watch for unstable snow on isolated terrain features. Normal caution is advised today-use basic travel techniques to minimize risk. |
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Click here to see the full forecast for 2015-12-28 |
December 28, 2015 at 6:42 LOW avalanche danger exists for all elevations and aspects. Isolated areas of instability may exist. Normal caution is advised. |
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Click here to see the full forecast for 2015-12-27 |
December 27, 2015 at 6:50 MODERATE avalanche danger continues above treeline on all aspects and near treeline on NW-N-NE-E-SE-S aspects on slopes 35 degrees and steeper. For all other areas expect LOW avalanche danger. Wind slabs remain an ongoing problem with two small human triggered wind slab avalanches reported yesterday. |
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Click here to see the full forecast for 2015-12-26 |
December 26, 2015 at 7:00 Human triggered avalanches will remain possible today on slopes 35 degrees and steeper on all aspects above treeline and on NW-N-NE-E-SE aspects and in near treeline terrain. MODERATE avalanche danger exists in those areas. Shifting winds mean that wind slabs could exist in any of these areas. Evaluate snow and terrain carefully before committing to a slope. |
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Click here to see the full forecast for 2015-12-25 |
December 25, 2015 at 7:01 Human triggered avalanches will remain possible today on slopes 35 degrees and steeper at all elevations on NW-N-NE-E-SE aspects and in above treeline terrain on all aspects. Wind slabs, loose dry avalanches, and some isolated storm slabs represent the main avalanche problems today with deep slabs on NW-N-NE aspects representing a very unlikely but not impossible problem. Evaluate snow and terrain carefully before committing to a slope. |
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Click here to see the full forecast for 2015-12-24 |
December 24, 2015 at 7:01 Human triggered avalanches will become likely today and natural avalanches will become possible as a winter storm impacts the forecast area. On slopes 35 degrees and steeper, CONSIDERABLE avalanche danger will form on NW-N-NE-E-SE aspects in near and above treeline terrain with MODERATE danger in all other areas. Wind slabs and loose dry avalanches represent the main avalanche problems today with deep slabs on NW-N-NE aspects representing a third unlikely but not impossible problem. |
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Click here to see the full forecast for 2015-12-23 |
December 23, 2015 at 7:02 Avalanche danger is moderate on all aspects and elevations on slopes steeper than 35 degrees due to wind slabs and deep persistent slabs. Our snowpack has doubled in size in most areas with a heavy, wet, dense layer of new snow. Human triggered avalanches are possible today with large destructive avalanches possible in some areas. Evaluate snow and terrain carefully. |
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Click here to see the full forecast for 2015-12-22 |
December 22, 2015 at 7:01 Avalanche danger is considerable on NW-N-NE-E-SE aspects at all elevations on slopes steeper than 32 degrees. Moderate avalanche danger exists on S-SW-W aspects at all elevations. Natural avalanches are possible and human triggered avalanches are likely due to winds slabs, storm slabs and persistent slabs. We have received 2 to 3' of wet, dense, heavy snow over the last 24 hours. Dangerous avalanche conditions exist. Careful snowpack evaluation, cautious route finding, and conservative decision making are essential today. |
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Click here to see the full forecast for 2015-12-21 |
December 21, 2015 at 7:00 Increasing avalanche danger will occur throughout the day today and tonight. CONSIDERABLE avalanche danger will exist today both near and above treeline on NW-N-NE-E-SE aspects as well as below treeline on NW-N-NE aspects on slopes 32 degrees and steeper. For all other areas, MODERATE avalanche danger exists. HIGH avalanche danger is expected to form tonight and last into the pre dawn hours tomorrow. |
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Click here to see the full forecast for 2015-12-20 |
December 20, 2015 at 6:56 MODERATE avalanche danger exists both near treeline and above treeline on NW-N-NE-E-SE aspects on slopes 35 degrees and steeper due to ongoing wind slab development. For all other areas, LOW avalanche danger exists. Persistent slab avalanches are unlikely but not impossible in open areas below treeline and near treeline on NW-N-NE aspects. |
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Click here to see the full forecast for 2015-12-19 |
December 19, 2015 at 7:00 MODERATE avalanche danger exists at all elevations on NW-N-NE aspects and in near and above treeline terrain on E-SE aspects on slopes 32 degrees and steeper due to the combination of wind slabs and persistent slabs. Where persistent slabs exist avalanches could occur on lower angle slopes as shallow as 25 degrees. Evaluate snow and terrain carefully before committing to a slope. If more snow falls than forecast, the avalanche danger could increase. Human triggered avalanches are possible today. |
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Click here to see the full forecast for 2015-12-18 |
December 18, 2015 at 6:57 The avalanche danger will remain LOW for all elevations and aspects today. LOW avalanche danger means that while avalanche activity may be unlikely, it is not impossible. Unstable snow in the form of small isolated persistent slabs could still exist on isolated terrain features especially in complex or extreme terrain or on pockets of sheltered NW-N-NE aspects. The avalanche danger will increase tonight and tomorrow as another winter storm impacts the region. |
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Click here to see the full forecast for 2015-12-17 |
December 17, 2015 at 7:00 The avalanche danger has decreased to LOW for all elevations and aspects. LOW avalanche danger means that while avalanche activity may be unlikely, it is not impossible. Unstable snow in the form of small isolated wind slabs or persistent slabs could still exist on isolated terrain features especially in complex or extreme terrain. |
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Click here to see the full forecast for 2015-12-16 |
December 16, 2015 at 7:00 Isolated pockets of moderate avalanche danger will exist throughout the forecast area today. Wind slabs and persistent slabs remain a lingering concern on all aspects above treeline and NW-N-NE aspects near treeline and below treeline. Low danger exists for all other areas. Human triggered avalanches will remain possible in isolated terrain. Evaluate snow and terrain carefully and use proper travel techniques to help mitigate risk. |
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Click here to see the full forecast for 2015-12-15 |
December 15, 2015 at 6:58 Pockets of Moderate avalanche danger exist on all aspects above treeline and on NW-N-NE aspects near treeline and below treeline. Low danger exists for all other areas. Avalanche problems for today consist of wind slabs and persistent slabs. In isolated areas, human triggered avalanches are possible today. Evaluate snow and terrain carefully, identify features of concern. |
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Click here to see the full forecast for 2015-12-14 |
December 14, 2015 at 6:56 MODERATE avalanche danger exists on slopes 32 degrees and steeper above treeline on all aspects, near treeline on NW-N-NE aspects, and below treeline NW-N-NE aspects. For other areas LOW avalanche danger exists. Today's avalanche problems are a combination of persistent slabs and wind slabs. Natural avalanches are unlikely today. Human triggered avalanches are possible and to a significant degree expected today near treeline and below treeline on NW-N-NE aspects where areas of buried surface hoar have not yet collapsed. |
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Click here to see the full forecast for 2015-12-13 |
December 13, 2015 at 7:05 CONSIDERABLE avalanche danger will form today above and below treeline on NW-N-NE-E-SE aspects on slopes 32 degrees and steeper. MODERATE avalanche danger for all other areas. Wind slabs and persistent slabs are todays avalanche problems. Significant uncertainty surrounds the potential for buried surface hoar below treeline on NW-N-NE aspects. Where surface hoar is buried, avalanche danger may exceed the regional rating of CONSIDERABLE and avalanche activity may occur on low angle slopes down to 25 degrees. |
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Click here to see the full forecast for 2015-12-12 |
December 12, 2015 at 6:54 MODERATE avalanche danger exists on slopes steeper than 32 degrees on NW-N-NE-E-SE aspects in near and above treeline terrain and on NW-N-NE aspects in below treeline terrain. Wind slabs will linger on wind loaded slopes, and the potential for persistent slabs still remains on some sheltered northerly aspects today. Evaluate snow and terrain carefully, and identify features of concern before committing to a slope. While avalanches will be more difficult to trigger today, human triggered avalanches will remain possible. |