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., Saturday, January 25, 2020
E.g., Saturday, January 25, 2020
E.g., Saturday, January 25, 2020
Date the advisory was published:sort ascending Bottom Line
Click here to see the full advisory for 2020-01-25
January 25, 2020 at 7:34

The Avalanche Danger is MODERATE.  Natural avalanches are unlikely but human triggered avalanches remain possible.  Shallow wind and storm slabs are possible on leeward slopes.  You may also trigger avalanches on layers buried from 1 foot to several feet.  Our deep persistent layers are buried 6-9 feet deep but should still be in the  back of your mind as you choose steeper terrain.  Rain in the lower elevations may increase the potential for wet avalanches starting tonight and through Sunday.

Click here to see the full advisory for 2020-01-24
January 24, 2020 at 6:51

The Avalanche Danger is MODERATE. Natural avalanches are unlikely today but human triggered avalanches remain possible.  Shallow wind slabs are possible  on wind loaded or leeward slopes. You may also be able to trigger deeper avalanches on several other layers in the snow pack.  These layers will be most sensitive on slopes with a thinner snowpack.  Rain in the lower elevations may increase the potential for wet avalanches through the weekend.

Click here to see the full advisory for 2020-01-22
January 22, 2020 at 7:10

The Avalanche Danger is MODERATE. Natural avalanches are unlikely today but human triggered avalanches remain possible.  You may trigger a wind slab on any wind loaded or leeward facing slope. You may also be able to trigger deeper avalanches on several other layers in the snow pack.  These layers may be sensitive on some slopes but not on others.  Safe travel techniques and careful snow pack evaluation are essential right now.

 

Click here to see the full advisory for 2020-01-20
January 20, 2020 at 7:04

The Avalanche Danger is MODERATE today. Natural avalanches are unlikely today but human triggered avalanches remain possible especially on specific features or slopes.  You may trigger a wind slab on any wind loaded or leeward facing slope. You may also be able to trigger deeper avalanches on several other layers in the snow pack.  These layers may be sensitive on some slopes but not on others.  Safe travel techniques and careful snow pack evaluation are essential right now.

 

Click here to see the full advisory for 2020-01-18
January 18, 2020 at 7:22

The Avalanche Hazard is MODERATE today. Moderate Hazard means that natural avalanches are unlikely today but human triggered avalanches remain possible especially on specific features or slopes.   You may trigger a wind slab on any wind loaded or leeward facing slope. You may also be able to trigger deeper avalanches on several other layers in the snowpack.  These layers may be sensitive on some slopes but not on others.  Safe travel and careful snowpack evaluation are essential right now.

 

Click here to see the full advisory for 2020-01-17
January 17, 2020 at 7:34

The Avalanche danger is Considerable in the upper elevations. Strong winds and light new snow have formed wind slabs on multiple aspects.  Expect storm slabs 8-12 inches that will also be sensitive to the weight of a skier or snowmobiler from last nights snowfall.  While the most sensitive snow lies in the upper snow pack, it remains possible to trigger an avalanche in older weak layers that are now buried 3-5 feet deep or more.

Click here to see the full advisory for 2020-01-15
January 15, 2020 at 6:53

The Avalanche danger is Considerable in the upper elevations. Strong winds and light new snow have formed Wind slabs and storm slabs.  Loose dry snow Avalanches or sluffs are possible on all sunny and steep terrain today.  The most sensitive snow lies in the upper snow pack, but you could trigger an avalanche in older weak layers that are now buried 3-5 feet deep or more.

 

Click here to see the full advisory for 2020-01-14
January 14, 2020 at 6:34

The Avalanche danger is High in the upper elevations. Strong winds and light new snow have formed Wind slabs and storm slabs.  Loose dry snow Avalanches are likely on all steep terrain today.  The most sensitive snow lies in the upper snow pack, but you could trigger an avalanche in older weak layers that are now buried 3-5 feet deep or more.

 

Click here to see the full advisory for 2020-01-13
January 13, 2020 at 6:59

High Avalanche Danger remains. Wind slab and storm slab avalanches are likely on all steep terrain today.  Strong South/Southwest winds upwards of 30 MPH and snow are continuing in upper elevations. Most of the danger, and the most sensitive snow lies in the upper snow pack, but you could trigger an avalanche in older weak layers that are now buried 3-5 feet deep or more.

 

Click here to see the full advisory for 2020-01-12
January 12, 2020 at 7:31

High Avalanche Danger remains in the upper elevations. Wind slab and storm slab avalanches are likely on all steep terrain today.  Most of the danger, and the most sensitive snow lies in the upper snow pack, but you could trigger an avalanche in older weak layers that are now buried 3-5 feet deep or more.  Expect High avalanche danger to rise through the day and continue through Monday.

Click here to see the full advisory for 2020-01-11
January 11, 2020 at 7:22

 A combination of wind slab and storm slab avalanches are likely on all steep terrain today.  Most of the hazard and the most sensitive snow lies in the upper snowpack, but you could trigger an avalanche in one of older weak layers that are now buried 2-4 feet deep.  These persistent layers are widespread throughout the area and will be getting a serious stability test with the weight of this storms snow.  Expect avalanche hazard to rise through the day.

Click here to see the full advisory for 2020-01-10
January 10, 2020 at 7:25

Expect significant changes and increasing avalanche hazard over the next few days.  A series of winter storms will bring 20+ inches of snow to the West Central Mountains this weekend.  New snow and gusty winds will add to the wind slab problem.  New storm slabs will also be likely and the potential for larger avalanches failing 2-4 feet down on persistent weak layers will increase as snow totals rise.

Click here to see the full advisory for 2020-01-08
January 8, 2020 at 7:17

Human triggered avalanches remain possible today. New snow and Southwest winds may create small natural avalanches, and wind slabs that are sensitive to the weight of a person. Human triggered avalanches on persistent weak layers at the mid and ground level of the snow pack are getting harder to trigger, but have large danger potential if triggered.  Avoid steep, wind loaded terrain, and steep, rocky terrain.

Click here to see the full advisory for 2020-01-06
January 6, 2020 at 7:04

Human triggered avalanches remain possible today. New snow and Southern winds will help increase the likely hood of triggering Wind Slabs near ridge tops. You may be able to trigger avalanches on a layer of buried surface hoar 18-24 inches down in the snow pack.  A deeper layer may be reactive to large triggers or triggers in shallow areas on a layer of facets near the November crust near the ground.  Avoid steep, wind loaded terrain, and steep, rocky terrain.

Click here to see the full advisory for 2020-01-04
January 4, 2020 at 7:56

Human triggered avalanches remain possible today.  You may be able to trigger avalanches on a layer of buried surface hoar 18-24 inches down in the snowpack. Widespread natural activity has been reported this week on multiple aspects with reports of both skier and snowmobile triggered avalanches on this layer.  A deeper layer may be reactive on a layer of facets near the November crust.  Wind loading this morning will add to the problem near ridgetops.  Avoid steep, wind loaded terrain.

Click here to see the full advisory for 2020-01-03
January 3, 2020 at 7:17

Human triggered avalanches remain possible today. Skiers and Snowmobilers will be able to trigger storm and wind slab avalanches 1-3 feet thick on a layer of buried surface hoar 18-24 inches down in the snowpack. Widespread natural activity was reported yesterday on multiple aspects with reports of both skier and snowmobile triggered avalanches on this layer.  A deeper and more dangerous layer may be reactive on a layer of facets above the November crust.  Avoid steep, and wind loaded terrain.

Click here to see the full advisory for 2020-01-01
January 1, 2020 at 7:10

Human triggered avalanches remain possible. New snow and gusty winds will create storm slabs upwards of a foot that may be sensitive. Buried Surface Hoar 1-2 feet deep and deeper Crusts/facets may be reactive. Wind slabs will be a growing problem.  Persistent weak layers have created low probability/high consequence scenario... avoid steep, and wind loaded terrain.

Click here to see the full advisory for 2019-12-30
December 30, 2019 at 7:15

Human triggered avalanches remain possible on buried Surface Hoar 1-2 feet deep, and where the snow is shallow and rocky basal facets may be reactive. Shallow wind slabs 2-6 inches are not bonded, and are failing under the weight of a person. You are most likely to trigger avalanches in steep, wind loaded, or wind protected slopes where surface hoar is still intact. Your decision making should reflect the conditions.

Click here to see the full advisory for 2019-12-28
December 28, 2019 at 7:17

Human triggered avalanches remain possible.  During the last week, skiers have triggered avalanches on multiple aspects.  You are most likely to trigger avalanches on wind loaded or wind protected slopes where surface hoar is still intact or where the snowpack is shallow and basal facets are still reactive to human triggers.  New soft storm slabs are building and should be expected on all steep slopes. Our snowpack is complex and variable and your decision making should reflect the conditions.

Click here to see the full advisory for 2019-12-27
December 27, 2019 at 7:33

Human triggered avalanches remain possible.  During the last week, skiers have triggered avalanches on multiple aspects.  You are most likely to trigger avalanches on wind loaded or wind protected slopes where surface hoar is still intact or where the snowpack is shallow and basal facets are still reactive to the weight of a skier or snowmobile.  Our snowpack is complex and variable and your decision making should reflect the conditions.

Click here to see the full advisory for 2019-12-25
December 25, 2019 at 7:46

Human triggered avalanches remain possible in wind loaded terrain, and wind protected terrain.  This week, Skiers have been able to trigger avalanches on multiple aspects, and we are finding persistent weak layers on all aspects.  The snow pack is shallow and rocky still, and complex...Make conservative choices in your route finding and avoid steep wind loaded terrain and protected terrain.

Click here to see the full advisory for 2019-12-23
December 23, 2019 at 6:58

Human triggered avalanches remain possible in wind loaded terrain.  The spring like temps over the last few days have helped our snowpack begin to heal but we are not out of the woods yet.  Observations from across the West Central Mountains show improving stability but concerns about structure and the persistent weak layers within the snowpack.  Make conservative choices in your route finding and avoid steep wind loaded terrain.

Click here to see the full advisory for 2019-12-21
December 21, 2019 at 7:10

Human triggered avalanches are likely in wind affected areas. Triggering a shallow wind slab could result in a deeper avalanche that is able to step down into the layer of buried surface hoar or to the rotten facets near the ground.  Avoid wind affected terrain or slopes steep enough to slide.   Lower elevations still have a shallow, early season snowpack with a different set of hazards.

Click here to see the full advisory for 2019-12-20
December 20, 2019 at 6:34

Human triggered avalanches are likely in wind affected areas. Triggering a shallow wind slab could result in a deeper avalanche that is able to step down into the layer of buried surface hoar or to the rotten facets near the ground. Avoid wind affected terrain or slopes steep enough to slide.   Lower elevations still have a shallow, early season snowpack with a different set of hazards.

Click here to see the full advisory for 2019-12-18
December 18, 2019 at 7:43
Click here to see the full advisory for 2019-12-14
December 14, 2019 at 9:36

Early season, shallow snowpack is the name of the game across the West Central Mountains.  We have a fairly complex and problematic snowpack right now with multiple weak layers.  The old October and early November snow has turned into a sugary junk pile near the ground with 2 additional weak layers above including buried surface hoar.  Avoid steep slopes especially on protected northerly slopes.  Our next update will be out on Wednesday, Dec 18.

Click here to see the full advisory for 2019-12-10
December 10, 2019 at 12:31

Be cautious in avalanche terrain as we have heard second hand reports of a snowmobile triggered slide this week, just South West of Payette Lake in the Coppet Creek area that went all the way to the Ground.

Click here to see the full advisory for 2019-04-05
April 5, 2019 at 7:43

The Avalanche Hazard is Moderate today.  The possibility of loose, wet avalanches will be increasing over the next few days as temperatures remain near or above freezing and snow lines fluctuate.  Moderate to strong winds will also begin creating wind slabs later today and through tomorrow.  In addition, cornices are sagging and just beginning to fail.  Avoid travel under large cornices while the temperatures are above freezing.

Click here to see the full advisory for 2019-04-03
April 3, 2019 at 6:56

The Avalanche Hazard is Moderate Today. Use caution in or around steep terrain between 5,000 feet and 7,000 feet. Temperatures have been above freezing and rain will continue to fall on the snow surface making human triggered wet-loose avalanches possible. 

Click here to see the full advisory for 2019-04-01
April 1, 2019 at 6:26

The Avalanche Hazard is Low Today. Use caution in or around wind-loaded, steep terrain. Shallow wind slabs with poor bonds exist in upper elevations. Wet-loose avalanche possibility will linger in the lower elevations today, and will be on the rise tomorrow as warm temperatures persist.  

Click here to see the full advisory for 2019-03-29
March 29, 2019 at 7:09

The Avalanche Hazard is Moderate Today. Gusty winds and around a foot of new snow have formed wind slabs in upper elevation leeward and exposed terrain, and may be sensitive to the weight of a skier or rider. Use caution in or around wind-loaded, steep terrain. Some of the new snow may not bond well to older Sun and rain crusts and may produce loose dry sluffs on slopes steeper than 30 degrees.

Click here to see the full advisory for 2019-03-27
March 27, 2019 at 7:08

The Avalanche Hazard is Considerable Today. Gusty winds will continue to form wind slabs in upper elevation leeward and exposed terrain, and may be sensitive to the weight of a skier or rider. Natural avalanches are possible, especially in wind-loaded, steep terrain. Some of the new snow may not bond well to older Sun and rain crusts and may produce loose dry sluffs.

Click here to see the full advisory for 2019-03-25
March 25, 2019 at 6:44

The Avalanche Hazard is Low today. Loose wet avalanches are possible as the snow pack receives sunlight, and daytime temperatures warm up. Avoid steep, rocky slopes that are getting the direct influence of the sun.  Later in the day, South winds around 30 MPH will be transporting snow and forming shallow wind slabs.

Click here to see the full advisory for 2019-03-22
March 22, 2019 at 7:10

The Avalanche Hazard is Low today. Loose wet avalanches are possible as the snowpack recieves sunlight, and daytime temperatures warm up. Avoid steep, rocky slopes that are getting the direct influence of the sun.  Later in the day, South winds around 24 MPH will be transporting snow and forming shallow wind slabs.

Click here to see the full advisory for 2019-03-20
March 20, 2019 at 7:06

The Avalanche Hazard is Moderate today, The hazard will rise as the Sun and ambient temperature heats up the snow. The heat may produce cornice failures, rollerballs, and wet-loose slides on steep solar influenced slopes, especially near rocks.  Be cautious, and avoid sunny steep slopes that are receiving an excessive amount of heat where you are sinking above your boot tops.  Choose cooler aspects that are not receiving direct Sun.

Click here to see the full advisory for 2019-03-18
March 18, 2019 at 6:12

The Avalanche Hazard will rise to Moderate as the Sun will increase the hazard throughout the day and heat up the snow, along with a warming trend which may produce cornice failures, rollerballs and wet-loose slides on steep solar influenced slopes.  Wind slabs are a possibility in upper elevation exposed terrain.  Be cautious, and avoid sunny steep slopes that are receiving an excessive amount of heat. 

Click here to see the full advisory for 2019-03-15
March 15, 2019 at 7:08

The Avalanche Hazard is Moderate today.  The Sun will increase the hazard throughout the day and heat up the snow, along with a warming trend which may produce cornice failures, rollerballs and wet-loose slides on steep solar influenced slopes.  Wind slabs are a possibility in upper elevation exposed terrain.  Stay off sunny steep slopes that are receiving an excessive amount of heat. 

Click here to see the full advisory for 2019-03-13
March 13, 2019 at 7:19

The Avalanche Hazard is Moderate today.  Expect fresh wind slabs from gusty Northwest winds upwards of 28 MPH that are forecasted to continue through this evening. The Sun will heat up the snow today, along with a warming trend and likely produce wet-loose slides on steep solar influenced slopes. 

Click here to see the full advisory for 2019-03-11
March 11, 2019 at 6:16

The Avalanche Hazard is Moderate today.  Human triggered soft slab, avalanches up to 1 1/2 feet deep are possible on steep slopes that have been protected from the wind and Sun, where buried surface hoar is supporting a soft slab, and might be waiting for a trigger. Buried weak layers exist in the top 2 feet of the snow pack including surface hoar and graupel.  Cornices are overhanging and should be avoided right now.

Click here to see the full advisory for 2019-03-06
March 6, 2019 at 7:26

The Avalanche Hazard is Considerable at all elevations. Up to 2 Feet of new snow by Friday along with gusty winds in the 20 MPH range are going to make Natural Avalanches possible and Human triggered avalanches likely. Use Good travel protocols like spreading out, and travel to avoid slopes steeper than 35 degrees. Lower elevation terrain, especially near rocks may produce small, loose-wet point releases, and or roller balls as the rain may creep up to 6,000 feet.

Click here to see the full advisory for 2019-03-04
March 4, 2019 at 5:20

The Avalanche Hazard is Moderate on all upper elevation wind exposed, loaded, and cross loaded steep terrain where Human triggered avalanches are possible. The upper snow pack,  4-6 inches, or more is denser and overlying a layer of graupl that is not bonding well.  Good travel protocols like spreading out, and traveling one at a time on slopes steeper than 35 degrees. Solar aspects, especially near rocks may produce small, loose-wet point releases, and or roller balls.

Click here to see the full advisory for 2019-02-27
February 27, 2019 at 7:05

The Avalanche Hazard is Considerable. Natural Avalanches are Possible and Human Triggered Avalanches are likely. Warmer and heavier snow is sitting on top of older loose snow. Strong South winds have created Wind slab hazard on wind loaded, and exposed slopes.  Storm slabs are likely in sheltered areas.  Travel cautiously in Avalanche terrain, and avoid wind loaded slopes.

Click here to see the full advisory for 2019-02-25
February 25, 2019 at 6:16

The Avalanche Hazard is Considerable. Natural Avalanches are Possible and Human Triggered Avalanches are likely. Warmer and heavier snow is sitting on top of older loose snow. Strong South winds have created Wind slab hazard on wind loaded, and exposed slopes.  Storm slabs are likely in sheltered areas.  Travel cautiously in Avalanche terrain, and avoid wind loaded slopes.

Click here to see the full advisory for 2019-02-22
February 22, 2019 at 7:19

The Avalanche Hazard is Moderate today. Natural Avalanches are unlikely and human caused Avalanches are possible.  Wind slab hazard exists on upper elevation, wind loaded, and exposed slopes.  Sluffing in the light density new snow is the biggest concern today and will be more likely in steep, rocky areas as the sun warms the surface of the snowpack.  Another series of storms will bring significant snowfall beginning tonight and will likely increase the hazard through the weekend.

Click here to see the full advisory for 2019-02-22
February 22, 2019 at 7:05

The Avalanche Hazard is Moderate today. Natural Avalanches are unlikely and human caused Avalanches are possible.  Wind slab hazard exists on upper elevation, wind loaded, and exposed slopes.  Sluffing in the light density new snow is the biggest concern today and will be more likely in steep, rocky areas as the sun warms the surface of the snowpack.  Another series of storms will bring significant snowfall beginning tonight and will likely increase the hazard through the weekend.

Click here to see the full advisory for 2019-02-20
February 20, 2019 at 6:58

The Avalanche Hazard is Moderate today. Natural Avalanches are unlikely and Human caused Avalanches are possible.  Wind slab hazard exists on upper elevation, wind loaded, and exposed slopes. It may be difficult to recognize wind slabs as they have been hidden by new snow.  Travel cautiously in and around Cornices and wind loaded terrain.

Click here to see the full advisory for 2019-02-18
February 18, 2019 at 7:08

The Avalanche Hazard is Considerable today. Natural Avalanches are possible and Human caused Avalanches are likely.  Strong winds and heavy snow have created wind slabs on upper elevation, exposed slopes that may be hidden under the latest snow.  The Sun may produce some loose wet Avalanches on solar aspects today.

Click here to see the full advisory for 2019-02-15
February 15, 2019 at 6:54

The Avalanche Hazard is High today. Natural Avalanches are likely and Human caused avalanches are very likely.  Strong winds and heavy snow have created dangerous wind slabs on upper elevation, exposed slopes that will continue today with a little more wind and snow.  Storm slabs are also likely on slopes over 30 degrees. Wait for the storm to calm down and allow the snow pack to adjust and re-freeze. Cooling temperatures today could make slabs initially brittle and reactive? 

Click here to see the full advisory for 2019-02-14
February 14, 2019 at 6:10

The Avalanche Hazard is High today.  Heavy snowfall combined with multiple days of strong winds have created dangerous wind slabs on upper elevation, exposed slopes.  Sluffing and storm slabs are also likely on slopes over 30 degrees. Warming temperatures and the possibility of rain on snow  this afternoon will add to the problem. Natural and Human caused avalanches are likely today.    

Click here to see the full advisory for 2019-02-13
February 13, 2019 at 6:55

The Avalanche Hazard is High today.  Heavy snowfall combined with multiple days of strong winds have created dangerous wind slabs on upper elevation, exposed slopes.  Sluffing and storm slabs are also likely on slopes over 30 degrees. Natural and Human caused avalanches are likely today.  Cornices are getting large and brittle, and will likely fail.  Travel in, or near avalanche terrain is not recommended today.

Click here to see the full advisory for 2019-02-12
February 12, 2019 at 5:52

The Avalanche Hazard is High today.  Natural avalanches are likely and Human triggered avalanches are Very Likely. Over 2 feet of snow is forecasted and ridge tops will see gusts upwards of 30 MPH over the next couple days that will continue to create wind slabs.  It is also possible to trigger soft storm slabs in the upper 2 feet. Cornices are growing, and will likely fail.  Travel in, or near avalanche terrain is not recommended today.

Click here to see the full advisory for 2019-02-11
February 11, 2019 at 6:58

The Avalanche Hazard is High today.  Natural avalanches are likely and Human triggered avalanches are Very Likely. Over 2 feet of snow is forecasted and ridge tops will see gusts upwards of 30 MPH over the next couple days that will continue to create wind slabs.  It is also possible to trigger soft storm slabs in the upper 2 feet. Cornices are growing, and will likely fail.  Travel in, or near avalanche terrain is not recommended today.

Click here to see the full advisory for 2019-02-08
February 8, 2019 at 7:04

The Avalanche Hazard is Moderate today.  Human triggered avalanches are possible today near ridgetops where isolated wind slabs exist.  It is also possible to trigger soft slabs in the upper 2 feet of the snowpack.  The most important factor to consider is the arrival of the next storm later today.  12+ inches will fall on Near Surface Facets and Surface Hoar on some slopes.  Expect the hazard to increase as we add more snow into the equation through the weekend.

Click here to see the full advisory for 2019-02-06
February 6, 2019 at 7:01

The Avalanche Hazard is Considerable.  Human triggered avalanches are still possible in steep terrain. Gusty winds around 22 MPH out of the South West along with over 2 feet of new snow over the last few days, have created wind slabs that are not well bonded to the older snow.  Be smart, use safe travel protocols avoid steep terrain, and be aware of changes in the snow pack throughout the day on different aspects.  

Click here to see the full advisory for 2019-02-04
February 4, 2019 at 6:33

The Avalanche Hazard is High.  Natural Avalanches are Likely, and Human triggered avalanches are very likely. With over a foot of new snow in the last 24 hours and gusty winds around 22 MPH out of the South West have created wind slabs that are not bonding to the older snow.  Be smart, use safe travel protocols avoid steep terrain, and be aware of changes in the snow pack throughout the day on different aspects.  

Click here to see the full advisory for 2019-02-01
February 1, 2019 at 6:36

The Avalanche Hazard is Low.  Shallow wind slabs are possible near ridge tops and on exposed terrain.  Low hazard does not mean NO hazard.  Be smart, use safe travel protocols including 1 at a time on steep terrain and be aware of changes in the snow pack throughout the day on different aspects.  Watch for changing conditions over the next 72 hours as a series of storms move through the area.

Click here to see the full advisory for 2019-01-30
January 30, 2019 at 7:04

The Avalanche Hazard is Low. Shallow wind slabs are possible near ridge tops and on exposed terrain.  Don't let your guard down, be smart, use safe travel protocols including 1 at a time on steep terrain and be aware of changes in the snow pack throughout the day on different aspects.

Click here to see the full advisory for 2019-01-28
January 28, 2019 at 6:58

The Avalanche Hazard is MODERATE in upper elevation wind loaded terrain. Shallow wind slabs are possible near ridge tops and on exposed terrain.  Small, loose/dry snow avalanches or sluffs are also possible in shady, very steep, wind/sun protected terrain.  Roller balls and other types of loose/wet activity will increase throughout the day on slopes affected by warming temperatures and direct solar effect.  Use safe travel protocols, and be aware of changes in the snow pack on different aspects. 

Click here to see the full advisory for 2019-01-26
January 26, 2019 at 7:05

The Avalanche Hazard is MODERATE in upper elevation wind loaded terrain. Shallow wind slabs are possible near ridge tops and on exposed terrain.  Small, loose/dry snow avalanches or sluffs are also possible in very steep, wind protected terrain.  Roller balls and other types of loose/wet activity will increase throughout the day on slopes affected by warming temperatures and direct solar effect.  Use safe travel protocols, be aware of changes in the snowpack on different aspects and enjoy a strengthening snowpack.

Click here to see the full advisory for 2019-01-24
January 24, 2019 at 7:04

The Avalanche Hazard is Moderate today.  Human triggered avalanches are possible in wind loaded terrain. Wind slabs that formed early this week are not bonded well and are resting on a variety of old snow surfaces, and may be hidden under newer lighter snow.  Loose, Dry human triggered avalanches are possible in steep terrain within the new snow.

Click here to see the full advisory for 2019-01-20
January 20, 2019 at 21:33

The Avalanche Hazard is Considerable today.  Natural avalanches are possible on steep solar aspects. Over a foot of snow and strong winds over the weekend have created fresh wind slabs that are resting on a variety of old snow surfaces.  Storm slabs will also be likely where new snow has not bonded to the older snow below.    

Click here to see the full advisory for 2019-01-18
January 18, 2019 at 7:23

The Avalanche Hazard is Considerable today on steep slopes.   New snow and strong winds have made avalanches likely on upper elevation slopes where fresh wind slabs are resting on a variety of old snow surfaces.  Storm slabs will also be likely where new snow has not bonded to the older snow below.  Additional storms through Monday will bring more snow.  Expect avalanche conditions to rise through the weekend.

Click here to see the full advisory for 2019-01-16
January 16, 2019 at 7:02

The Avalanche danger is Low today.  Thursday, the wind and snow will pick up from the South and begin to form new Wind Slabs and Cornice avalanche danger.  

Click here to see the full advisory for 2019-01-14
January 14, 2019 at 6:07

The Avalanche Hazard is Moderate today.  Wind Slabs and Cornices remain a concern on exposed slopes and vary in their reactivity to skiers and snowmobiles.  Some of the wind slabs are resting on Graupel and weak layers persist deeper in the snow pack. Use caution in areas where wind slabs are present especially where the snow pack is still shallow.  Loose/Wet Avalanches will be a consideration on slopes affected by the Sun.

Click here to see the full advisory for 2019-01-11
January 11, 2019 at 7:16

The Avalanche Hazard is Moderate today.  Wind Slabs and Cornices have formed on exposed slopes and vary in their reactivity to skiers and snowmobiles.  Some of the wind slabs are resting on Grauple and weak layers persist deeper in the snowpack. Use caution in areas where wind slabs are present especially where the snowpack is still shallow.  Loose/Wet Avalanches will be a consideration on slopes affected by the sun and warming temperatures over the next few days.

Click here to see the full advisory for 2019-01-09
January 9, 2019 at 7:07

Considerable Avalanche hazard exists throughout the West Central Mountains.  Fresh wind Slabs have formed and will be likely in the upper elevations, and wet slides may be possible from a warming trend and forecasted rain in the lower elevations. More snow and moderate wind is forecasted today and tonight above 5-6,000 feet.

Click here to see the full advisory for 2019-01-07
January 7, 2019 at 7:21

Considerable Avalanche hazard exists throughout the West Central Mountains.  Wind Slabs exist in exposed, upper elevation terrain, and have potential to "step down" into weak layers deeper in the snow pack.  Avalanches are also possible in wind protected areas where Storm Slabs have formed, and where buried weak layers exist.  Your safest option is to avoid steep, wind loaded terrain, and  areas where the snow pack is still thin enough to trigger the sugary, faceted layer near the ground.

Click here to see the full advisory for 2019-01-04
January 4, 2019 at 7:02

Moderate Avalanche hazard exists throughout the West Central Mountains.  Wind Slabs are the primary concern and exist in exposed, upper elevation terrain.  These slabs have potential to "step down" into weak layers deeper in the snowpack.  Avalanches are also possible in wind protected areas where buried weak layers exist within the snow pack.  Your safest option is to avoid steep terrain, especially areas where the snow pack is still thin enough to trigger the sugary, faceted layer near the ground.

Click here to see the full advisory for 2019-01-02
January 2, 2019 at 7:05

Moderate Avalanche hazard exists throughout the West Central Mountains.  It is possible to trigger an avalanche. The snow pack is widely variable right now.  Wind Slabs may be found in exposed, upper elevation terrain.  Human triggered avalanches are also possible in wind protected areas where buried weak layers exist within the snow pack.  Your safest option is to avoid steep terrain, especially areas where the snow pack is still thin enough to trigger the sugary, faceted layer near the ground.

Click here to see the full advisory for 2018-12-31
December 31, 2018 at 6:35

 Moderate Avalanche hazard exists throughout the West Central Mountains.  The snowpack is widely variable right now.  Wind Slabs may be found in wind exposed, upper elevation terrain.  Human triggered avalanches are also possible in wind protected areas where buried weak layers exist within the snowpack.  Your safest option is to avoid steep terrain, especially areas where the snowpack is still thin enough to trigger the sugary, faceted layer near the ground.

Click here to see the full advisory for 2018-12-29
December 29, 2018 at 7:01

 Moderate Avalanche hazard exists throughout the West Central Mountains.  The snowpack is widely variable right now.  Wind Slabs may be found in wind exposed, upper elevation terrain.  Human triggered avalanches are also possible in wind protected areas where buried weak layers exist within the snowpack.  Your safest option is to avoid steep terrain, especially areas where the snowpack is still thin enough to trigger the sugary, faceted layer near the ground.

Click here to see the full advisory for 2018-12-28
December 28, 2018 at 6:41

Moderate Avalanche hazard exists throughout the West Central Mountains.  Wind Slabs exist in wind exposed, upper elevation terrain.  Human triggered avalanches are also possible in many areas where buried weak layers exist within the snowpack.  Your safest option is to avoid steep terrain, especially areas where the snowpack is still thin enough to trigger the sugary, faceted layer near the ground and pay attention to which slopes are being affected by the wind.

Click here to see the full advisory for 2018-12-26
December 26, 2018 at 6:56

The Avalanche danger is Moderate. Human triggered avalanches are still possible. Winds from around the Compass have continued to form slabs on leeward facing terrain.  Within our variable snow pack, multiple persistent weak layers exist including a well preserved layer of buried surface hoar and basal facets Be Patient and Give the snow pack a VERY healthy dose of respect right now until conditions change, which may be a couple of weeks or more

Click here to see the full advisory for 2018-12-24
December 24, 2018 at 6:55

The Avalanche danger is Moderate.  Wind slabs can be found on leeward facing terrain, additional snow and wind today will add to the problem.  Within our variable snow pack, multiple weak layers exist including a well preserved layer of buried surface hoar and basal facets.   Give the snow pack a VERY healthy dose of respect right now until conditions change. If triggered, avalanches have the possibility of spreading out over large areas. 

Click here to see the full advisory for 2018-12-24
December 24, 2018 at 6:54

The Avalanche danger is Moderate.  Wind slabs can be found on leeward facing terrain, additional snow and wind today will add to the problem.  Within our variable snow pack, multiple weak layers exist including a well preserved layer of buried surface hoar and basal facets.   Give the snow pack a VERY healthy dose of respect right now until conditions change. If triggered, avalanches have the possibility of spreading out over large areas. 

Click here to see the full advisory for 2018-12-22
December 22, 2018 at 5:57

Our snowpack is widely variable right now and so are our avalanche problems.  Multiple weak layers exist within our snowpack including a well preserved layer of buried surface hoar and basal facets.  Wind slabs can be found on leeward facing terrain, additional snow and wind will add to the problem.  Give the snowpack a VERY healthy dose of respect right now until conditions change. If triggered, avalanches have the possibility of spreading out over large areas. 

Click here to see the full advisory for 2018-12-21
December 21, 2018 at 6:59

Our snowpack is widely variable right now and so are our avalanche problems.  Multiple weak layers exist within our snowpack including a well preserved layer of buried surface hoar and basal facets.  Wind slabs have also been building on leeward facing terrain over the last 3 days. Give the snowpack a VERY healthy dose of respect right now until conditions change. If triggered, avalanches have the possibility of spreading out over large areas.

Click here to see the full advisory for 2018-12-19
December 19, 2018 at 6:29

The Avalanche danger is Considerable. Use caution and good travel protocols near slopes above 30 degrees! The new snow has created a sensitive storm slab on all aspects. There are still multiple weak layers including buried surface hoar, and basal facets creating a VERY weak snow pack in some areas.  Strong South winds created Wind slabs on NW, N and NE slopes.  

Click here to see the full advisory for 2018-12-17
December 17, 2018 at 6:27

 Use caution in upper elevation areas today. Northerly slopes contain deeper snowpacks and multiple weak layers including buried surface hoar a foot from the surface and basal facets creating a VERY weak snowpack in some areas.   New windslabs formed in the last 48 hours on NW, N and NE slopes.  With multiple weak layers, widespread variability and newly created wind slabs, avalanche season has begun and may be on the rise this week given more snow load.  

Click here to see the full advisory for 2018-12-15
December 15, 2018 at 7:40

 Use caution in upper elevation areas today.  Northerly slopes contain deeper snowpacks and multiple weak layers including buried surface hoar and basal facets creating a VERY weak snowpack in some areas.   New windslabs formed in the last 24 hours on NW, N and NE slopes.  With multiple weak layers, widespread variability and newly created wind slabs, avalanche season has begun.  We will be collecting more data over the next few days and begin issuing advisories next week.

Click here to see the full advisory for 2018-12-12
December 12, 2018 at 8:36
Click here to see the full advisory for 2018-03-31
March 31, 2018 at 7:07

The Avalanche Hazard is generally Low today.  The potential for small loose/wet avalanches and failing cornices will increase as temperatures warm later in the day.  Steep, rocky slopes on the southern half of the compass will have the highest potential for wet slides.  Small, isolated wind slabs may also be found near ridgetops in east and north facing terrain.

Click here to see the full advisory for 2018-03-30
March 30, 2018 at 6:47

The Avalanche Hazard is Low today.  The potential for small loose/wet avalanches and failing cornices will increase later in the day as temperatures warm.  Steep, rocky slopes on the southern half of the compass will have the highest potential for wet slides.  Indicators of increasing instability include: roller balls and cinnamon rolls or a change from a supportable crust to  an unsupportable one.  If you notice these signs, it is time to move to a cooler slope.

Click here to see the full advisory for 2018-03-25
March 25, 2018 at 6:38

The avalanche hazard is LOW today.  2 days of cooling temperatures have made for a generally stable snowpack.  Small loose/wet avalanches are possible IF the sun makes an appearance over the next couple of days but these will be confined to steep, rocky areas that are getting direct sun affect.  Shallow wind slabs may still be found on northerly aspects.  Remember, LOW hazard does not mean no hazard, keep your eyes open for variable conditions.

Click here to see the full advisory for 2018-03-24
March 24, 2018 at 6:58

The Avalanche Hazard is MODERATE today throughout the West Central Mountains.  Cooling temperatures following Thursday's rainy warmup have started to stabilize and refreeze the snowpack. The upper elevations have already seen a significant refreeze while middle and lower elevation slopes are still in the process of a solid refreeze.  Shallow, stiff wind slabs may be encountered on upper elevation, wind exposed terrain.  

Click here to see the full advisory for 2018-03-23
March 23, 2018 at 7:16

Loose/wet avalanches are possible on all slopes steep enough to slide today.  The Avalanche Hazard is Considerable. Over the last 48 hours snow and rain fell at all but the highest elevations, adding weight to the snowpack and significantly reducing stability.  Natural wet avalanches were occurring on multiple aspects yesterday especially where a stout melt freeze crust was present 10-12 inches down.  Play it safe and avoid steep slopes until a solid refreeze has occurred. 

Click here to see the full advisory for 2018-03-18
March 18, 2018 at 6:53

Over a foot of new snow combined with winds have created Considerable avalanche hazard. Wind and storm slabs are not bonding well, but resting on slick crusts. Lingering persistent weak layers are buried 2 to 4 feet below the surface, and are mixed into layers of crusts, graupel, and facets.  Natural avalanches are possible, and Human triggered avalanches are likely today. 

Click here to see the full advisory for 2018-03-17
March 17, 2018 at 6:15

Considerable avalanche hazard exists due to recently formed storm slabs that are not bonding well, but resting on slick crusts. Lingering persistent weak layers are buried 1 to 3 feet below the surface mixed into layers of crusts, graupel, and facets. Added snow load today will increase the possibility of Natural avalanches, and make Human triggered avalanches likely. 

Click here to see the full advisory for 2018-03-16
March 16, 2018 at 7:00

Spring is arriving in the valleys, but it’s still winter in the mountains. A moderate avalanche hazard exists due to recently formed storm slabs and strengthening, but still lingering persistent weak layers that are buried 1 to 3 feet below the surface. Human triggered avalanches remain possible today and you should steer clear of terrain where the consequences of being caught in an avalanche would be significant, such as cliff bands, terrain traps, or slopes that abruptly end. 

Click here to see the full advisory for 2018-03-11
March 11, 2018 at 7:24

Moderate Avalanche Hazard exists throughout the West Central Mountains, human triggered avalanches are possible today.  New wind slabs formed in the last 24 hours.  Older wind slabs from last week's storms still exist as well and may be overlying a weak layer of facets or in some areas a combination of crust and facets.  Watch for visual clues of where these new slabs have formed and where old wind slabs still exist.

Click here to see the full advisory for 2018-03-10
March 10, 2018 at 7:21

Moderate Avalanche Hazard exists throughout the West Central Mountains, human triggered avalanches are possible today.  New wind slabs formed in the last 24 hours.  Older wind slabs from last week's storms still exist as well and may be overlying a weak layer of facets or in some areas a combination of crust and facets.  Watch for visual clues of where these new slabs have formed and where old wind slabs still exist.

Click here to see the full advisory for 2018-03-09
March 9, 2018 at 6:41

Moderate Avalanche Hazard exists throughout the West Central Mountains, human triggered avalanches are possible today.  New wind slabs have formed in the last 24 hours and will continue to build through the day today.  Older wind slabs from last week's storms are still possible and may be overlying a weak layer of facets above the early February rain crust.  Watch for visual clues of where these new slabs are forming and where old wind slabs still exist.

Click here to see the full advisory for 2018-03-04
March 4, 2018 at 7:00

Human triggered avalanches are possible at all elevations. Pockets of areas where human triggered avalanches are likely exist at upper elevations due to wind slabs that formed during and after the last storm cycle. These avalanches may occur on isolated terrain features where recent snow has loaded and they may be large enough to bury a person. Yesterday, a human triggered avalanche north of Brundage Ski Area demonstrated that the snowpack is still highly variable and sensitive to human triggers. 

Click here to see the full advisory for 2018-03-03
March 3, 2018 at 7:07

The Avalanche Hazard is Considerable on upper elevation, wind affected ridges and slopes.  Strong winds combined with recent snowfall have created sensitive wind slabs on both windward and leeward slopes affected by SE, SW and S winds over the last few days.  Avoid traveling on or near corniced ridgelines as newly formed cornices are very sensitive and breaking farther back than you might expect. Loose snow avalanches or sluffs are likely on terrain over 35 degrees.

Click here to see the full advisory for 2018-03-02
March 2, 2018 at 7:11

The avalanche hazard is HIGH on upper elevation slopes where a combination of new snow and strong winds have created very sensitive wind slabs.  A very tender storm slab exists on wind protected slopes where over a foot of new snow has fallen in the last 2 days.  Human triggered avalanches ranging in size from a few inches to over 2 feet are very likely today.  Avoid steep wind affected terrain and all slopes over 35 degrees.

Click here to see the full advisory for 2018-02-25
February 25, 2018 at 5:00

Natural and Human triggered Loose snow avalanches/sluffs are likely on slopes over 35 degrees. Wind slab hazard will be increasing, and may be found on upper and middle elevation, wind exposed slopes. Be careful near ridgelines and cornices that may be tender and overhanging.  Numerous natural and human caused avalanches occurred in the last 6 days, most of these failed in wind loaded areas where faceted snow was resting on a crust below.

Click here to see the full advisory for 2018-02-24
February 24, 2018 at 7:14

Human triggered avalanches are possible today where isolated wind slabs may be found on upper and middle elevation, wind exposed slopes.  The new snow we received this week may be hiding older wind slabs left from  strong winds earlier this week.  Loose snow avalanches/sluffs are likely on slopes over 35 degrees.  Numerous natural and human caused avalanches occurred in the last 6 days, most of these failed in wind loaded areas where faceted snow was resting on a crust below.

Click here to see the full advisory for 2018-02-23
February 23, 2018 at 7:19

Human triggered avalanches are possible today where isolated wind slabs may be found on upper and middle elevation, wind exposed slopes.  The new snow we received this week may be hiding older wind slabs left from last week's strong winds.  Loose snow avalanches are likely on slopes over 35 degrees.  Numerous natural and human caused avalanches occurred in the last 6 days, most of these failed in wind loaded areas where faceted snow was resting on a stout crust below.

Click here to see the full advisory for 2018-02-18
February 18, 2018 at 6:58

Strong winds and a combination of denser snow on top of light density snow has created Considerable wind slab avalanche hazard in lee terrain, and terrain exposed to the swirling mountain winds.  Moderate to high W/SW winds hammered the upper elevations over the last 2 days forming sensitive wind slabs on leeward slopes.  Slopes protected from the wind will be prone to storm slab avalanches.  Steep, especially wind protected terrain may also be prone to loose sluffing.

Click here to see the full advisory for 2018-02-17
February 17, 2018 at 7:02

Conditions are changing in the mountains right now and you will need to change your mindset to match the conditions.  A combination of light density snow, wind and rising temperatures will elevate the avalanche hazard today.  Moderate to high W/SW winds hammered the upper elevations yesterday forming sensitive wind slabs on leeward slopes.  Slopes protected from the wind will be prone to loose, dry avalanches.   As temperatures rise today storm slabs will become a problem on all protected slopes.

 

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