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., Monday, January 27, 2020
E.g., Monday, January 27, 2020
E.g., Monday, January 27, 2020
Date the advisory was published:sort descending Bottom Line
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 2019-03-11
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 2019-03-13
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 2019-03-15
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 2019-03-18
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 2019-03-20
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 2019-03-22
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 2019-03-25
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 2019-03-27
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 2019-03-29
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 2019-04-01
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 2019-04-03
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 2019-04-05
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 2019-12-10
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 2019-12-14
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 2019-12-18
December 18, 2019 at 7:43
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 2019-12-21
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 2019-12-23
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 2019-12-25
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 2019-12-27
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 2019-12-28
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 2019-12-30
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 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 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 2020-01-04
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 2020-01-06
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 2020-01-08
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 2020-01-10
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 2020-01-11
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 2020-01-12
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 2020-01-13
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 2020-01-14
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 2020-01-15
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 2020-01-17
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 2020-01-18
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 2020-01-20
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 2020-01-22
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 2020-01-24
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 2020-01-25
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 2020-01-27
January 27, 2020 at 7:20

The Avalanche Danger is MODERATE above 7,000 feet.  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. 

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