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, July 22, 2019
E.g., Monday, July 22, 2019
E.g., Monday, July 22, 2019
Date the advisory was published:sort ascending
Click here to see the full advisory for 2019-04-12
April 12, 2019 at 14:48
Advisory
Click here to see the full advisory for 2019-04-12
April 12, 2019 at 14:48
Advisory
Click here to see the full advisory for 2019-04-12
April 12, 2019 at 14:48
Advisory
Click here to see the full advisory for 2019-04-05
April 5, 2019 at 6:52

Great sliding conditions exist out there right now.  The lack of an overnight freeze may have things slighty slushy, say that six times fast, but above 6,ooo feet the snow is more supportive.  You'll also find 4-6 inches of powder on northerly aspects above 6,000 feet so make your mission to seek the fresh before its gone.

Advisory
Click here to see the full advisory for 2019-04-05
April 5, 2019 at 6:37

We are heading into a rain/snow mixed precipitation cycle this weekend. Expect avalanche danger to trend upwards through Saturday and Sunday as we recieve snow at the highest elevations and rain down lower. This is the last regular forecast of the season. 

Advisory
Click here to see the full advisory for 2019-04-05
April 5, 2019 at 5:24

Last forecast of the year!! We have a stable snowpack with a 4-7" of fresh snow at upper elevations. With a nice little shot of late season powder at upper elevations and more light moisture on the way expect to find powder riding above 6,000' and the potential for small, loose-wet slides below this elevation.  This weekend may be a good time to tear up the last bit of pow for the season!

Advisory
Click here to see the full advisory for 2019-04-02
April 2, 2019 at 6:30

We have entered a nice spring pattern with freezing temperatures at night and warm ups during the day. Expect to find Low avalanche danger in the morning and for it to rise as the mercury rises on the sunny aspects. Watch for loose wet slides as the day heats up and avoid any glide crack or cornice areas. Get in and get out of avalanche terrain early. 

Advisory
Click here to see the full advisory for 2019-04-02
April 2, 2019 at 6:30

We have entered a nice spring pattern with freezing temperatures at night and warm ups during the day. Expect to find Low avalanche danger in the morning and for it to rise as the mercury rises on the sunny aspects. Watch for loose wet slides as the day heats up and avoid any glide crack or cornice areas. Get in and get out of avalanche terrain early. 

Advisory
Click here to see the full advisory for 2019-04-02
April 2, 2019 at 4:46

Avalanche danger will continue to be driven by the sun on Tuesday. Expect to find firm surfaces and LOW avalanche danger in the mornings followed by the potential for small, loose-wet slides to develop in the afternoon on steep, rocky terrain that is exposed to the sun on south and west aspects. Continue to pay attention to objective hazards above you such as Glide Cracks and Cornices that may be getting weak in the sun.

Advisory
Click here to see the full advisory for 2019-03-29
March 29, 2019 at 4:34

Avalanche danger will continue to be driven by the sun right now. Expect to find firm surfaces and LOW avalanche danger in the mornings followed by the potential for small, loose-wet slides to develop in the afternoon on steep, rocky terrain that is exposed to the sun. Continue to pay attention to objective hazards above you such as Glide Cracks and Cornices that may be getting weak in the sun.

Advisory
Click here to see the full advisory for 2019-03-26
March 26, 2019 at 7:10

We've started to return to more of a normal spring cycle; freezing temperatures at night then warmer days. The cloud cover and lower temperatures will help reduce the potential for wet, loose slides.  Be aware that the danger rises as the sun comes out.  Plan to hit the slopes early on the warm days and leave when pinwheels start showing up.  

Advisory
Click here to see the full advisory for 2019-03-26
March 26, 2019 at 6:58

We've started to return to more of a normal spring cycle; freezing temperatures at night then warmer days. The cloud cover and lower temperatures will help reduce the potential for wet, loose slides.  Be aware that the danger rises as the sun comes out.  Plan to hit the slopes early on the warm days and leave when pinwheels start showing up.  

Advisory
Click here to see the full advisory for 2019-03-26
March 26, 2019 at 6:43

The daytime temperatures have been above freezing for a week or so, which creates melting and ultimately a more avalanche prone snowpack. Fortunately, the cooler nights have been refreezing the surface of the snowpack which has been saving us. The best plan now is to get out early when the surface is still firm and frozen. Stay away from sun soked slopes with signs of melting.

Advisory
Click here to see the full advisory for 2019-03-26
March 26, 2019 at 6:43

The daytime temperatures have been above freezing for a week or so, which creates melting and ultimately a more avalanche prone snowpack. Fortunately, the cooler nights have been refreezing the surface of the snowpack which has been saving us. The best plan now is to get out early when the surface is still firm and frozen. Stay away from sun soked slopes with signs of melting.

Advisory
Click here to see the full advisory for 2019-03-26
March 26, 2019 at 6:36

We've started to return to more of a normal spring cycle; freezing temperatures at night then warmer days. The cloud cover and lower temperatures will help reduce the potential for wet, loose slides.  Be aware that the danger rises as the sun comes out.  Plan to hit the slopes early on the warm days and leave when pinwheels start showing up.  

Advisory
Click here to see the full advisory for 2019-03-26
March 26, 2019 at 5:45

Cloud cover and lower temperatures will reduce the potential hazard of wet slides  on Tuesday. Expect the wet slide potential to rise again on Wednesday on slopes exposed to solar radiation on Wednesday as sunshine returns.

Advisory
Click here to see the full advisory for 2019-03-22
March 22, 2019 at 6:42

Today is another sunny one, which makes 5 days in a row that we haven't recieved freezing temperatures at our highest SNOTELS.  The avalanche danger is directly related to this warming period.  Expect the danger to rise as the day progresses; if the snow turns sloppy, it's time to beat feet out of avalanche terrain.  While the temperatures are going to cool a bit on Saturday and Sunday, rain at the mid and low elevations will keep the danger increased.  

Advisory
Click here to see the full advisory for 2019-03-22
March 22, 2019 at 6:42

Today is another sunny one, which makes 5 days in a row that we haven't recieved freezing temperatures at our highest SNOTELS.  The avalanche danger is directly related to this warming period.  Expect the danger to rise as the day progresses; if the snow turns sloppy, it's time to beat feet out of avalanche terrain.  While the temperatures are going to cool a bit on Saturday and Sunday, rain at the mid and low elevations will keep the danger increased.  

Advisory
Click here to see the full advisory for 2019-03-22
March 22, 2019 at 6:05

Get ready for one more day of unseasonably warm temperatures, before a cooler weather system shows up.  I expect to see unstable snow conditions today in the backcountry, as the snowpack warms up. Be especially aware of slopes that have long exposere to the sun.  Practice safe travel techniques, stay away from terrain traps and look for signs of a weakening snow. 

Advisory
Click here to see the full advisory for 2019-03-22
March 22, 2019 at 5:49

You will see small avalanches in steep terrain that is being cooked in the sun on Friday. By the weekend incoming weather will provide cloud cover and reduce the danger of loose wet slides in steep and solar affected slopes. Stay safe by moving to lower angle terrain  or shaded aspects when the sun comes out.

Advisory
Click here to see the full advisory for 2019-03-19
March 19, 2019 at 6:45

The mountain weather forecast is dipping barely below freezing at nights above 5000' for the next couple of days. Day time temperatures are predicted to be downright blazing, which will cause rapid change on the snowpack.  Expect the wet slide potential to increase as the day warms up.  If you are seeing natural pinwheels and rollerballs, head to the cooler side. If there isn't a cooler side, head to mellower slopes.  

Advisory
Click here to see the full advisory for 2019-03-19
March 19, 2019 at 6:32

Spring conditions are here in full force! We've had many reports of wet avalanche activity across the region.  Expect to see the avalanche danger increase throughout the day. As air temperatures rise so does the avalanche danger. Be particularly careful on solar aspects (E-S-W). I anticipate seeing a increase in avalanche activity over the the next 48-72 hours.  Enjoy the sun but keep it safe!

Advisory
Click here to see the full advisory for 2019-03-19
March 19, 2019 at 4:53

The avalanche danger will fluctuate from LOW in the mornings to CONSIDERABLE in the afternoon as the sun warms the slopes and reduces the strength of the snowpack. You will see small avalanches in steep terrain that is being cooked in the sun. Stay safe by moving to lower angle terrain when the sun comes out.

Advisory
Click here to see the full advisory for 2019-03-15
March 15, 2019 at 7:39

With cool nights and daytime temps hovering at the freezing level and sunny days, solar aspects will be most affected towards the middle of the day warming the upper snowpack especially on steeper slopes where the sun angle is the greatest.  

Advisory
Click here to see the full advisory for 2019-03-15
March 15, 2019 at 6:43

The weather looks like we've solidly hit spring weather for the extended forecast!  The sun beating down on the snow will make the instability increase  through the daytime due to the potential for wet avalanches.  Beat this by playing the game of aspects.  Hit your SE-S-W aspects in the morning before they heat up and head to the North as the day progresses.  And don't forget your sunscreen!

Advisory
Click here to see the full advisory for 2019-03-15
March 15, 2019 at 5:23

The primary weakness right now is 11" below the surface. It will likely cause problems in isolated locations or on slopes that are exposed to the heat of the sun. Asses the stability and consequence of steep slopes individually before diving in headfirst. Now that is is March pay attention to the effects of the sun and move off of steep slopes that are exposed to the sun as the days heat up! 

Advisory
Click here to see the full advisory for 2019-03-12
March 12, 2019 at 6:45

A winter storm will deliver up to 14" of heavy snow by Wednesday morning.  Expect the avalanche danger to increase as the storm accumulates, hitting CONSIDERABLE by tomorrow. The main concern will be wind slabs on the N - E aspects.  Watch for storm slabs as well; this snow will be falling on crust on the W - E aspects from all the sun we recieved over the weekend and patches of surface hoar in sheltered areas on the N.

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

People get ready, there's a change a comin.  Warmer temperatures, wind, and new snow will fall on a firm snow surface on many aspects and also a patchy layer of surface hoar.  The storm just began about 4AM so conditions have not reached a problem level yet, but expect the hazard to rise to Considerable or High by later today and last into tomorrow.

Advisory
Click here to see the full advisory for 2019-03-12
March 12, 2019 at 4:51

Tuesday will bring more snow and southwest winds. Expect windslabs to continue being the main concern on North and East aspects in steep alpine terrain. The new snow may form thin storm slabs as well that will take a couple of days to bond. Use caution in steep terrain and loading zones where even small slabs may take you for a ride.

Advisory
Click here to see the full advisory for 2019-03-08
March 8, 2019 at 6:35

The Wednesday/Thursday storm came in warm and cooled down, bonding well to the old snow and leaving us with a new, clean, fluffy riding and sliding surface.  Winds are back to our prevailing direction, so heads up for wind slabs in the NW-E aspects.  

Advisory
Click here to see the full advisory for 2019-03-08
March 8, 2019 at 6:13

The recent cold temperatures have kept the snowpack from showing any signs of spring. Don't worry...it's coming! As the sun gets higher in the sky and air temperatures start to rise, be ready for a rapid warm up and melt. For now...enjoy the good sliding surface and keep an eye out for wind slabs.

 

 

 

 

Advisory
Click here to see the full advisory for 2019-03-08
March 8, 2019 at 4:59

With a modest dose of fresh snow and strong south west winds we will continue to list WINDSLAB as the main concern. Expect to find dense slabs of snow near ridgelines and steep rolls. Watch for shooting cracks in the surface of the snowpack and be very wary of steep, unsupported terrain on north and easterly aspects when dropping off of ridglelines this weekend. 

Advisory
Click here to see the full advisory for 2019-03-05
March 5, 2019 at 6:46

The current challenge is to find good snow that hasn't been hammered by the winds over the last week.  To avoid the wind slab problem on our SW - N aspects, search out cold powder that is lingering in the timbered areas that have been protected from the winds. 

Advisory
Click here to see the full advisory for 2019-03-05
March 5, 2019 at 5:07

We are currently enjoying good general snowpack stability with windslab problems on specific terrain features. Strong east winds have loaded west aspects just below ridgelines and cross-loaded chutes on north and south aspects. For the best and safest riding conditions look for soft snow in timbered areas where the surface snow hasn't been hammered by the wind!

Advisory
Click here to see the full advisory for 2019-03-04
March 4, 2019 at 19:59

Continuing cool weather and no recent snowfall has helped maintain and stabilize the snowpack.  The snowpack has settled and consolidated losing over a foot of overall snowdepth creating more stable snowpack.  Cool air temperatures have been sucking the moisture out of the upper pack and breaking down some of the weaker windslabs creating recycled powder.  

Advisory
Click here to see the full advisory for 2019-03-01
March 1, 2019 at 6:36

Your biggest concern today and this weekend will be windslabs that may be touchy in steeper terrain.  They exist on all aspects and many are very firm and solid.  Be wary of breakable windslabs on steep, convex terrain.  The great sliding conditions continue with cold temperatures and light additions of new snow.  Overall, the upper pack (3-4 feet) is gaining density with depth and is structurally solid.  Get out before the next deep freeze arrives. 

Advisory
Click here to see the full advisory for 2019-03-01
March 1, 2019 at 6:19

The old proverb of "In like a lion" seems to be holding true for us.  The cold weather is still sticking around, which means lots of light, fluffy snow avaliable for wind transport. Wind slab growth will continue through the weekend with cold, windy weather.  Stick around until the end of March and we'll see then if the rest of the proverb holds true as well.  

Advisory
Click here to see the full advisory for 2019-03-01
March 1, 2019 at 4:49

General snowpack stability is improving area wide on the Kootenai and the primary avalanche concern will continue to be windslabs this weekend. With southwest flow today followed by another incoming cold front expect to find new wind slabs developing on any aspect at upper elevations. The likely trigger spots will be below ridgelines, steep and cross-loaded chutes or steep convex rolls. 

Advisory
Click here to see the full advisory for 2019-02-26
February 26, 2019 at 6:50

This cold weather keeps lingering around, as do the winds from directions that aren't our prevailing direction.  Over the past day we've seen winds from the E-SE and N, and they are supposed to be from the E - NE today and tomorrow. Heads up for wind slabs in the steep terrain below ridges, convex rollovers, and crossloading.  Avoid these areas by entering the slopes low in the sheltered timber.

Advisory
Click here to see the full advisory for 2019-02-26
February 26, 2019 at 6:31

Strong north winds are going to dominate the weather pattern, for the next couple of days. We'll continue to see cold temperatures and small amounts of snow over the next 48 hours. The snowpack is pretty strong and supportable in most places. The cold temps have kept the surface snow loose and light providing good sliding conditions in protected or sheltered places.  

Advisory
Click here to see the full advisory for 2019-02-26
February 26, 2019 at 4:35

Strong northeasterly winds have created windslabs in atypical locations and they will continue to build through the day Tuesday. Use caution in steep terrain below ridgelines, steep and convex rolls and cross-loaded chutes. Better snow, less wind and safer conditions can be found in the sheltered protection of the timber right now. 

Advisory
Click here to see the full advisory for 2019-02-22
February 22, 2019 at 6:27

The snow from last week has continued to strengthen over the past several days without any new loading on top of it.  We still have reactive wind slabs on multiple aspects as we've had varied wind directions this week.   And our buried persistent weak layers are still down there lurking in the pack.  Assess your riding area before committing to steep, complicated terrain.

Advisory
Click here to see the full advisory for 2019-02-22
February 22, 2019 at 5:09

Generally stable snowpack conditions exist right now but there are hazards at isolated locations in steep terrain at treeline and above. Take the time to assess each slope individually before committing to any steep chute or exposed ribs where a small pocket of slab may wreck your day. 

Advisory
Click here to see the full advisory for 2019-02-21
February 21, 2019 at 22:20

New snow has had time to bond with minimal new snow this week.  Light accumulations expected the next few days.  Watch for wind loading on Saturday.  Variability is key to remember as persistent slabs still exist in pockets with high consequence.  

Advisory
Click here to see the full advisory for 2019-02-19
February 19, 2019 at 7:04

Cold temperatures have stiffen and settled the snow near the surface. Most areas I traveled to yesterday. had very supportable snow with 3-5'' of light snow blowing around on the surface.  I observed a lot of erratic wind loading from many different directions so becareful around terrain your familiar with...it may have taken on a different character over the past week or so

Advisory
Click here to see the full advisory for 2019-02-19
February 19, 2019 at 6:47

The snow from last week has continued to strengthen as it settles but with moderate winds from multiple directions over the weekend, expect to find wind slabs on all aspects below the ridgelines. Also look for cross loading on steep, open terrain that has been exposed to the winds.  

Advisory
Click here to see the full advisory for 2019-02-19
February 19, 2019 at 4:34

The area has been exposed to strong winds blowing from multiple directions the last few days at all elevations. With ample loose snow available for transport this has created windslabs directly below ridgelines and in steep, cross loaded terrain that is open and exposed to the winds. Use caution in these terrain features.

Advisory
Click here to see the full advisory for 2019-02-15
February 15, 2019 at 6:22

Big week for storm snow riders!  Shifting winds this week have loaded multiple aspects and storm slabs are touchy.  Steep, windloaded areas below ridges and cornices will be the most hazardous areas today and this weekend.  Don't approach cornices from above or below since cornices have built up to the breaking point this week.

Advisory
Click here to see the full advisory for 2019-02-15
February 15, 2019 at 6:04

The snowpack is still adjusting to the heavy loading we had earlier in the week; add to that the new snow and high winds we got last night and we have a snowpack that is still working on stabilizing. It is still possible to trigger slides that are 1 to 3 ft in depth, especially in wind loaded areas.  With all the new snow out there settling some; riding and sliding is great in terrain that is under 30 degrees.  

Advisory
Click here to see the full advisory for 2019-02-15
February 15, 2019 at 5:39

Tuesdays storm snow is slowly settling and gaining strength but more is on the way over the next two days.  Your best choice right now is to continue choosing conservative terrrain through the weekend. Watch for wind slab development on all aspects at treeline and above in steep terrain near ridgelines and in gullies.

Advisory
Click here to see the full advisory for 2019-02-13
February 13, 2019 at 8:15

Heavy snow combined with strong winds will create widespread areas of unstable snow and HIGH AVALANCHE DANGER at all elevations and aspectsAvalanches may run long distances and into flat areas. Avoid travelling on or below any terrain that is steeper than 30 degrees. Travel in avalanche terrain is not recommended. 

Advisory
Click here to see the full advisory for 2019-02-13
February 13, 2019 at 8:15

Heavy snow combined with strong winds will create widespread areas of unstable snow and HIGH AVALANCHE DANGER at all elevations and aspectsAvalanches may run long distances and into flat areas. Avoid travelling on or below any terrain that is steeper than 30 degrees. Travel in avalanche terrain is not recommended. 

Advisory
Click here to see the full advisory for 2019-02-13
February 13, 2019 at 8:15

Heavy snow combined with strong winds will create widespread areas of unstable snow and HIGH AVALANCHE DANGER at all elevations and aspectsAvalanches may run long distances and into flat areas. Avoid travelling on or below any terrain that is steeper than 30 degrees. Travel in avalanche terrain is not recommended. 

Advisory
Click here to see the full advisory for 2019-02-12
February 12, 2019 at 7:26

Significant snow accumulations today with 9-13 inches expected on top of the 7 plus inches reported.  Temperatures and snow densities are low.  Expect hazard to increase with developing storm throughout the day and assess winds, temperature and precipitation "rapid" changes!

Advisory
Click here to see the full advisory for 2019-02-12
February 12, 2019 at 6:30

CONSIDERABLE avalanche danger on all elevations and aspects with danger rising through the day. We have made it through the other side of the cold tunnel! Unfortunately that means the warmer storms coming in are depositing heavier, denser snow over the light stuff we experienced this weekend. And a lot of new loading it is, with forecasts up to 2ft of additional snow on top of last night's 8inches by Wednesday. Stay conservative until this system has time to stabilize. 

Advisory
Click here to see the full advisory for 2019-02-12
February 12, 2019 at 4:34

CONSIDERABLE avalanche danger exists on all aspects and elevations. Expect the conditions to worsen throughout the day Tuesday as the latest storm rolls through. Heavy storm snow and sensitive wind slabs will create touchy conditions on all steep terrain through Wednesday. This week is a good time to make conservative terrain choices!

Advisory
Click here to see the full advisory for 2019-02-08
February 8, 2019 at 7:10

NOAA is calling the forecast blustery! In avalanche terms this translates to cold snow and windy conditions. Watch out for wind slabs on all aspects as we've had swirling winds this week with the cold front. The light density snow will be easy to trigger loose slides in our steep terrain. And we are still seeing a buried persistent weak layer down there is isolated areas. 

Advisory
Click here to see the full advisory for 2019-02-08
February 8, 2019 at 6:11

Watch windloaded ridgelines that could exist on multiple aspects today, now under a little more snow load.  We saw some natural windslab avalanches on windloaded ridges yesterday on Gunsight and Monday near Trestle Peak.  It snowed all night!  Temperatures are in the single digits up high so the new snow is light.  More snow with extreme cold expected today.  Avalanche danger will increase this weekend due to strong NE winds.

Advisory
Click here to see the full advisory for 2019-02-08
February 8, 2019 at 5:12

We continue to see reactive surface hoar buried 2' below the surface on sheltered (north and east) aspects between 5,000' to 6,000'. These slabs will be difficult to trigger but will cause large avalanches if triggered. High alpine terrain will harbor thin and soft windslabs in steep, cross-loaded chutes and below ridgelines. In steep terrain (over 40°) loose snow will slough easily and may be dangerous in areas where cliffs or trees may cause bodily harm. 

Advisory
Click here to see the full advisory for 2019-02-07
February 7, 2019 at 15:43

NOAA is calling the forecast blustery! In avalanche terms this translates to cold snow and windy conditions. Watch out for wind slabs on all aspects as we've had swirling winds this week with the cold front. The light density snow will be easy to trigger loose slides in our steep terrain. And we are still seeing a buried persistent weak layer down there is isolated areas. 

Advisory
Click here to see the full advisory for 2019-02-05
February 5, 2019 at 6:40

Brrrrrr!  The weekends storms came in warm and left cold which helped them bond well to the crust underneath.  Heads ups for wind slabs in different locations than usual, the winds have been coming out of the north with this cold weather.  The cold also means the snow is very low density, loose dry slides could be a problem that can knock you off your feet in steep terrain.  And we can't forget to mention our buried persistent weak layer

Advisory
Click here to see the full advisory for 2019-02-05
February 5, 2019 at 6:16

Good morning! It's a chilly one out there! Plan on staying bundled up for a while. This cold front looks like it will stick around through the weekend. The snowpack doesn't like the cold either. I expect we'll see the snowpack develop some weaknessess, as a result of this weather. 

Advisory
Click here to see the full advisory for 2019-02-05
February 5, 2019 at 5:13

We continue to see reactive surface hoar buried 2' below the surface on sheltered (north and east) aspects between 5,000' to 6,000'. These slabs will be difficult to trigger but will cause large avalanches if triggered. In steep terrain (over 40°) loose snow will slough easily and may be dangerous in areas where cliffs or trees may cause bodily harm. Stay on your feet and make sure you can manage the "loose-dry" problem before committing to steep terrain.

Advisory
Click here to see the full advisory for 2019-02-01
February 1, 2019 at 7:00

Snowpack was very stable in the Selkirks yesterday and avalanches are unlikely to occur, however we did find the elusive surface hoar a foot deep on an East aspect at 6000 feet. We did not find it on South or North aspects and have not seen it in other areas of the southern Selkirks.

Advisory
Click here to see the full advisory for 2019-02-01
February 1, 2019 at 6:51

A week with no precipitation has given the snowpack time to stabilize, but there are still certain watch-outs.  The buried surface hoar is reactive in sheltered and shaded areas, there are a few lingering wind slabs, and as the temperature rises the potential for wet avalanches will increase.  Check out the descriptions of each below to see how they differ by aspect and elevation and keep your head on a swivel. Avalanche danger will rise to Considerable on Saturday.

Advisory
Click here to see the full advisory for 2019-02-01
February 1, 2019 at 5:01

Buried surface hoar persists in the snowpack but has become less reactive. Use caution in steep protected openings and draws below 6,500'.

Expect avalanche hazard to rise to CONSIDERABLE by Saturday if the predicted storm brings more snow and wind into the area. The new snow will fall on a fresh layer of surface hoar below treeline and crust layers above treeline creating reactive conditions this weekend.

Advisory
Click here to see the full advisory for 2019-01-29
January 29, 2019 at 8:33

Another day of sun for the panhandle! Today looks like a beautiful day to be in the mountains. Think about the effects of the sun, while your out today. South facing slopes are going to heat up the fastest. Signs of instability on solar effected slopes are pinwheels, roller balls and observed loose snow avalanches. It looks like a good chance for snow later this week...cross your fingers!

Advisory
Click here to see the full advisory for 2019-01-29
January 29, 2019 at 6:38

Sunny weather and no new precipitation over the weekend has helped the snowpack stabilize, but there are still pockets of instability out there.  Heads up for isolated areas of buried surface hoar, especially in sheltered areas on the NW-N-NE aspects at the mid elevations.  Several human triggered avalanches were reported over the weekend on this buried persistent weak layer.

Advisory
Click here to see the full advisory for 2019-01-29
January 29, 2019 at 5:45

The buried surface hoar can still be found below 6,500' in elevation. It has become less reactive in most locations but it is still possible to trigger a slide on this weak layer. Use caution in steep and sheltered drainage locations where you could trigger a small slide on surface hoar under last Wednesdays' storm snow.

Advisory
Click here to see the full advisory for 2019-01-25
January 25, 2019 at 6:56

Buried surface hoar on top of a stout crust is still reactive in sheltered areas near treeline in the mid elevations creating pockets of considerable avalanche danger. When you are travelling up through elevation to get to your destination, be gathering lots of data as you go.  Moderate winds with the new snow have created small wind slabs on the leeward ridges and peaks.  We have a complicated snowpack out there that requires lots of consideration on your part. 

Advisory
Click here to see the full advisory for 2019-01-25
January 25, 2019 at 6:14

The mid-elevation danger rating is moderate with pockets of considerable because of a buried surface hoar layer we found only on sheltered north and east aspects in the 5,500-6,000 foot range.  Other weak layers were associated with the more recent snowfall and were failing in the upper foot of snowpack on all aspects that we tested.  West winds may be building touchy slabs up high on easterly aspects.

Advisory
Click here to see the full advisory for 2019-01-25
January 25, 2019 at 5:12

Buried surface hoar under a cohesive slab layer are prevalant at treeline and below across the forest. The avalanche Danger will be CONSIDERABLE at treeline and below in the Purcells and East Cabinets. In the West Cabinets the danger is MODERATE with pockets of CONSIDERABLE danger. Use caution and practice safe travel habits to minimize exposure and likelihood of triggering this weak layer.

Advisory
Click here to see the full advisory for 2019-01-23
January 23, 2019 at 9:18

Substantial snowfall, strong winds and some very reactive weak layers are creating HIGH AVALANCHE DANGER at treeline and below. Avoid travelling on or below all terrain that is steeper than 30°. 

Advisory
Click here to see the full advisory for 2019-01-23
January 23, 2019 at 9:18

Substantial snowfall, strong winds and some very reactive weak layers are creating HIGH AVALANCHE DANGER at treeline and below. Avoid travelling on or below all terrain that is steeper than 30°. 

Advisory
Click here to see the full advisory for 2019-01-23
January 23, 2019 at 9:18

Substantial snowfall, strong winds and some very reactive weak layers are creating HIGH AVALANCHE DANGER at treeline and below. Avoid travelling on or below all terrain that is steeper than 30°. 

Advisory
Click here to see the full advisory for 2019-01-22
January 22, 2019 at 6:36

Soft storm slabs are resting on slippery crust and buried surface hoar layer in many locations. Storms coming in later today will add more weight to these slabs at all elevations.  Avalanche danger is going to rise Wednesday with the predicted amounts of snowfall and strong winds hitting the region.  Winter Storm Warning tonight! Play it safe and dial it back.  

Advisory
Click here to see the full advisory for 2019-01-22
January 22, 2019 at 6:06

You'll notice a "crust cake" in the upper two feet of snowpack with light snow in between each crust.  Some weak layers still exist in the light snow which has not fully settled due to the cold weather.  Be cautious in steep, convex terrain where you could trigger these upper weak layers today.  Winter Storm Warning issued tonight!

Advisory
Click here to see the full advisory for 2019-01-18
January 18, 2019 at 7:02

Mid-week's weather left us with a snowpack with a bed surface of crust and surface hoar.  The new storm is falling on this weak, slippery layer and will cause the avalanche danger to increase through the weekend as more snow accumulates.  Expect to find reactive storm slabs at all elevations. Watch for indication of these in the flat areas with shooting cracks and whumphing.  

Advisory
Click here to see the full advisory for 2019-01-18
January 18, 2019 at 7:02

Mid-week's weather left us with a snowpack with a bed surface of crust and surface hoar.  The new storm is falling on this weak, slippery layer and will cause the avalanche danger to increase through the weekend as more snow accumulates.  Expect to find reactive storm slabs at all elevations. Watch for indication of these in the flat areas with shooting cracks and whumphing.  

Advisory
Click here to see the full advisory for 2019-01-18
January 18, 2019 at 5:35

The stable snow conditions of the past week will deteriorate as new snow falls on a bed surface of crust and well developed surface hoar. Thin, soft snow slabs will be wide spread and reactive Friday and likely to build through the weekend. Use caution in steep terrain and pay attention to the potential consequences of being caught in small slides as you travel. Avalanche danger has the potential to rise this weekend if predicted snowfall materializes!

Advisory
Click here to see the full advisory for 2019-01-15
January 15, 2019 at 6:27

Warm temperatures the past several days have helped the snowpack stabilize. Still of concern is the November buried surface hoar layer where we have areas of thin snowpack at the highest elevations and around rock outcrops.  Weather patterns will be changing Thursday, but until then enjoy the stability and the visibility.

Advisory
Click here to see the full advisory for 2019-01-15
January 15, 2019 at 6:11

A couple days of sunshine and warm temperatures, have helped settle and consolidate the snowpack. A rain crust on the surface doesn't provide the best traveling surface, but there's something to be said for good stability and visibility! Be especially heads after the next significant snow storm. Even though the sun is helping heal the pack right now, it will leave a firm slide surface in it's wake.  

Advisory
Click here to see the full advisory for 2019-01-15
January 15, 2019 at 5:19

Last weeks warm temperatures and rain were followed by high pressure and cooler conditions. This combo has effectively set us up for stable snowpack conditions in the short term. Expect this to change by Thursday as more snow moves into the area and falls on a layer of growing surface hoar and thick rain crust. Continue to keep an eye out for potential trouble spots in extreme terrain and areas of thin snow at the highest elevations.

Advisory
Click here to see the full advisory for 2019-01-11
January 11, 2019 at 6:27

This week was a good one for new snow accumulation.  Temperatures warmed on Wednesday and we saw rain and heavy snow to the mountaintops which created a wet layer on top yesterday.  The wet snow over the lighter snow will create some concerns as you gain elevation today since the wet snow layer will be freezing up high.  Triggering the wet stuff could release a weak layer in the light snow so be cautious around steeper terrain on any aspect.  

Advisory
Click here to see the full advisory for 2019-01-11
January 11, 2019 at 6:27

This week was a good one for new snow accumulation.  Temperatures warmed on Wednesday and we saw rain and heavy snow to the mountaintops which created a wet layer on top yesterday.  The wet snow over the lighter snow will create some concerns as you gain elevation today since the wet snow layer will be freezing up high.  Triggering the wet stuff could release a weak layer in the light snow so be cautious around steeper terrain on any aspect.  

Advisory
Click here to see the full advisory for 2019-01-11
January 11, 2019 at 5:27

Another warm and wet storm has brought high mountain snow above treeline and rain below. Expect to encounter storm slabs above treeline on all aspects and crusty snow conditions below 6,000'. In the Purcell Range continue to keep an eye on the persistent weaknesses at treeline and above. Stability will improve as temperatures drop and the wet snow locks together at lower elevations.

Advisory
Click here to see the full advisory for 2019-01-08
January 8, 2019 at 6:37

New snow and wind loading are the topics of the day! The forecast area recieved a new blanket of snow over the past 48 hours, with more to come. 

Advisory
Click here to see the full advisory for 2019-01-08
January 8, 2019 at 6:37

New snow and wind loading are the topics of the day! The forecast area recieved a new blanket of snow over the past 48 hours, with more to come. 

Advisory
Click here to see the full advisory for 2019-01-08
January 8, 2019 at 4:58

Sunday nights storm dropped 12-18" of snow on the Cabinet Mountains. This new snow formed sensitive storm slabs that will be reactive in steep terrain, give the new snow time to settle and strengthen before venturing into steep terrain this week. In the Purcells the "persistent slab" problem continues to lurk, it is a low-likelihood/high consequence scenario. Practice safe travel habits and use caution in likely "trigger spots" such as steep, convex rolls and areas where the snowpack is thin.

Advisory
Click here to see the full advisory for 2019-01-04
January 4, 2019 at 6:22

Heavy snow and high winds will create wind and storm slabs on a dense snow pack with increasing avalanche hazard.  The overall hazard rating is considerable for the Selkirk and Cabinets.  

Advisory
Click here to see the full advisory for 2019-01-04
January 4, 2019 at 5:28

Strong south-westerly winds combined with additional snowfall will create sensitive windslabs on steep, leeward terrain. These slabs will continue to build through Friday. New storm snow will also raise the avalanche hazard going into the weekend as new, dense snow will create a cohesive slab layer and add stress to the existing weak layers within the snowpack. Give the snowpack time to adjust to this change and avoid steep terrain (over 30°) through the weekend.

Advisory
Click here to see the full advisory for 2019-01-04
January 4, 2019 at 5:13

With just enough snow and wind yesterday, wind slabs will be our main concern today and through the weekend.  Pay attention to our traditional start zones on the N-NE-E aspects as they will be sensitive. Also, our couple of problem layers keep getting buried a little deeper each storm, but it is important to keep those in mind as we get further into the new year.  Pay attention to your terrain choices and watch for signs of instability.

Advisory
Click here to see the full advisory for 2019-01-01
January 1, 2019 at 6:13

Happy New Year everyone!  Looks like we have a beautiful day today for sliding in the mountains with a little fresh snow to touch things up.  Just remember, even though it's a new year and conditions are good, accidents can still happen.  The bottom line is we have some wind slabs on easterly aspects and a couple deeper weak layers to keep in mind.  Pay attention to your terrain choices and watch for signs of instability.

Advisory
Click here to see the full advisory for 2019-01-01
January 1, 2019 at 6:13

Happy New Year everyone!  Looks like we have a beautiful day today for sliding in the mountains with a little fresh snow to touch things up.  Just remember, even though it's a new year and conditions are good, accidents can still happen.  The bottom line is we have some wind slabs on easterly aspects and a couple deeper weak layers to keep in mind.  Pay attention to your terrain choices and watch for signs of instability.

Advisory
Click here to see the full advisory for 2019-01-01
January 1, 2019 at 6:13

Happy New Year everyone!  Looks like we have a beautiful day today for sliding in the mountains with a little fresh snow to touch things up.  Just remember, even though it's a new year and conditions are good, accidents can still happen.  The bottom line is we have some wind slabs on easterly aspects and a couple deeper weak layers to keep in mind.  Pay attention to your terrain choices and watch for signs of instability.

Advisory
Click here to see the full advisory for 2019-01-01
January 1, 2019 at 5:50

The most recent storm has created wind slabs on north-easterly facing terrain at treeline and above. Avoid steep terrrain on these aspects near ridge-lines and pay attention to gullies that may be "cross-loaded" in steep, open terrain. The recent loading has also caused the persistent weak layers to become more reactive in areas where the snowpack is thin and weak. Use caution in areas where the snow is thin and pay attention to collapsing and cracking snow as you travel.  

Advisory
Click here to see the full advisory for 2018-12-28
December 28, 2018 at 6:03

The colder air temperature and minimal winds from the past couple days has kept the snow surface nice and fluffy! Even though the weather has been pretty stable, we're still seeing changes happen in the snowpack.  Current snow conditions (thick stiff slab of snow with light new snow on top) are making backcountry travel a little easier right now, so don't be tempted to travel in places your gut is telling you to stay off of.  

Advisory
Click here to see the full advisory for 2018-12-28
December 28, 2018 at 6:03

The colder air temperature and minimal winds from the past couple days has kept the snow surface nice and fluffy! Even though the weather has been pretty stable, we're still seeing changes happen in the snowpack.  Current snow conditions (thick stiff slab of snow with light new snow on top) are making backcountry travel a little easier right now, so don't be tempted to travel in places your gut is telling you to stay off of.  

Advisory
Click here to see the full advisory for 2018-12-28
December 28, 2018 at 6:03

The colder air temperature and minimal winds from the past couple days has kept the snow surface nice and fluffy! Even though the weather has been pretty stable, we're still seeing changes happen in the snowpack.  Current snow conditions (thick stiff slab of snow with light new snow on top) are making backcountry travel a little easier right now, so don't be tempted to travel in places your gut is telling you to stay off of.  

Advisory
Click here to see the full advisory for 2018-12-28
December 28, 2018 at 5:15

Generally stable snowpack conditions exist below treeline. Above treeline there are still persistent weak-layers within the snowpack, the Purcell Mountains are where you are most likely to find these weak layers. Human triggered avalanches are not likely; but, will be large and have high consequences if triggered. Moving forward into the weekend there is the potential for stability to decline if the next predicted storm materializes. Continue to practice safe travel habits and keep an eye on the weather.

Advisory

Pages