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, December 11, 2017
E.g., Monday, December 11, 2017
E.g., Monday, December 11, 2017
Date the advisory was published:sort ascending
Click here to see the full advisory for 2017-04-05
April 5, 2017 at 8:20

I was sure nice to see the sunshine yesterday! I dug a snowpit yesterday north of Schweitzer mountain in the Selkirks (6200ft). There is 30-40cm crust near the surface that is very supportive. I don't see the avalanche danger increasing until that thick crust gets broken down. Rain and warm temperatures might try to break down the crust layer but my feeling is that overnight temperatures will be cold enough to keep it intact for the extent of this forecast.

Advisory
Click here to see the full advisory for 2017-04-05
April 5, 2017 at 8:20

I was sure nice to see the sunshine yesterday! I dug a snowpit yesterday north of Schweitzer mountain in the Selkirks (6200ft). There is 30-40cm crust near the surface that is very supportive. I don't see the avalanche danger increasing until that thick crust gets broken down. Rain and warm temperatures might try to break down the crust layer but my feeling is that overnight temperatures will be cold enough to keep it intact for the extent of this forecast.

Advisory
Click here to see the full advisory for 2017-03-31
March 31, 2017 at 7:22

The snowpack has gone isothermic. That means the temperature outside will be a good indicator for figuring out the avalanche danger. Right now freezing temperatures over night are keeping the avalanche danger low. An increase in temperature could increase instabilities. For now, enjoy the spring riding!

Advisory
Click here to see the full advisory for 2017-03-31
March 31, 2017 at 7:22

The snowpack has gone isothermic. That means the temperature outside will be a good indicator for figuring out the avalanche danger. Right now freezing temperatures over night are keeping the avalanche danger low. An increase in temperature could increase instabilities. For now, enjoy the spring riding!

Advisory
Click here to see the full advisory for 2017-03-31
March 31, 2017 at 7:05

Welcome to Spring! The snowpack in the Selkirks and Cabinets has gone isothermic. If we see an increase in temperature there could be an increased avalanche danger but right now overnight temperatures are cold enough to keep snow from moving.

Advisory
Click here to see the full advisory for 2017-03-28
March 28, 2017 at 17:24

Temperatures are on the warm side and new snow is accumulating with westerly winds.  Watch wind loading on lee aspects.  Weak layers may form as changes in density new snow.  The pack may be getting a little rotten and that increases your chances of setting off loose wet sloughs. 

Advisory
Click here to see the full advisory for 2017-03-28
March 28, 2017 at 17:05

With no major concerns for weak layers in the existing pack the thing to watch is the accumulation of new snow and wind.  The mountains have received about 3 inches of new snow in the last 24 hours and winds have loaded lee aspects more deeply.  Look for weak layers between changes in density.  More snow and wind forecast for tomorrow.

Advisory
Click here to see the full advisory for 2017-03-24
March 24, 2017 at 7:38

Currently Crust on Surface with warming temps and snow today which could lead to loose wet slides on steeper terrain over 32 degrees on all aspects.  Avalanche hazard is being held in check by the melt/freeze conditions from the last few days and nights.  The pack is isothermal and there are no serious lingering weak layers in the upper 3 feet above the thick crust.  New snow and warming temperatures will be your main concern later today and this weekend.

Advisory
Click here to see the full advisory for 2017-03-24
March 24, 2017 at 7:08

Avalanche hazard is being held in check by the melt/freeze conditions from the last few days and nights.  The pack is isothermal and there are no serious lingering weak layers in the upper 3 feet above the thick crust.  New snow and warming temperatures will be your main concern later today and this weekend.

Advisory
Click here to see the full advisory for 2017-03-22
March 22, 2017 at 9:24
Advisory
Click here to see the full advisory for 2017-03-22
March 22, 2017 at 9:24
Advisory
Click here to see the full advisory for 2017-03-17
March 17, 2017 at 7:53

Mid 20 temperatures at night have helped the avalanche danger. The snow pack is just barely seeing cold enough nights to keep it in place. Look for a weaker snow pack to develop quickly when temps warm up.  

Advisory
Click here to see the full advisory for 2017-03-17
March 17, 2017 at 7:37

Even though we've seen a lot of rain in the snow pack at 6000', temperatures at night have been cold enough to keep the upper portions of the pack mostly frozen. Rain has percolated through the pack about 60-90cm down.  Temperatures in the mid 20's at night are helping keep the snow pack locked in place. If temps. warm up it could quickly become a different story. 

Advisory
Click here to see the full advisory for 2017-03-14
March 14, 2017 at 20:22
Advisory
Click here to see the full advisory for 2017-03-14
March 14, 2017 at 20:22
Advisory
Click here to see the full advisory for 2017-03-10
March 10, 2017 at 7:20

Melissa and MIiles found about 110cm of new snow since the rain 3 weeks ago. So far, it has all landed right side up and settling. Snowfall yesterday was already beginning to get denser as they were headed out.  Concerns are windslabs in the N-NE-E aspects near and above treeline and the recent storm slabs.  

Advisory
Click here to see the full advisory for 2017-03-10
March 10, 2017 at 7:02

We've received about 1 foot of snow on the level since last week and steady westerly winds have piled it up even deeper on lee aspects.  Warming temperatures with the most recent accumulation of several inches last night will have created an unstable situation at the surface, particularly in those wind-loaded areas.  Touching off a small slab in steep terrain could step down to lower layers.  

Advisory
Click here to see the full advisory for 2017-03-07
March 7, 2017 at 13:18

MODERATE avalanche danger today for mid and upper elevations for the entire forecast region with isolated areas of considerable in steep exposed terrain near ridgetops on windloaded aspects N, NE, E.  With increase in wind, snow and temperatures watch for heavier snow on lighter snow in the upcoming storms producing 1.5 feet of new storm snow weak layers.

Advisory
Click here to see the full advisory for 2017-03-07
March 7, 2017 at 13:18

MODERATE avalanche danger today for mid and upper elevations for the entire forecast region with isolated areas of considerable in steep exposed terrain near ridgetops on windloaded aspects N, NE, E.  With increase in wind, snow and temperatures watch for heavier snow on lighter snow in the upcoming storms producing 1.5 feet of new storm snow weak layers.

Advisory
Click here to see the full advisory for 2017-03-03
March 3, 2017 at 11:32

In the Bitteroots near Lookout Pass we have 3 feet recent storm snow which has a decent bond to the 8 inch icecrust from 3 weeks ago with some instability within the top 3 feet of storm snow due minor snow density changes between these storms.  Things are starting to consolidate.  The upper few inches of snow have some wind affect in most areas with more on steep exposed upper elevations.  

Advisory
Click here to see the full advisory for 2017-03-03
March 3, 2017 at 11:32

In the Bitteroots near Lookout Pass we have 3 feet recent storm snow which has a decent bond to the 8 inch icecrust from 3 weeks ago with some instability within the top 3 feet of storm snow due minor snow density changes between these storms.  Things are starting to consolidate.  The upper few inches of snow have some wind affect in most areas with more on steep exposed upper elevations.  

Advisory
Click here to see the full advisory for 2017-03-03
March 3, 2017 at 7:00

In the Cabinet Mountains near Lunch peak we found 9 feet of snow with calm winds and below freezing temperatures.  Above the thick icecrust formed 3 weeks ago, we have received 3 feet of low density fluff with the top 3 inches starting to slab up from the recent winds since Wednesday.  

Advisory
Click here to see the full advisory for 2017-02-06
February 6, 2017 at 15:50

High avalanche danger exists across the forecast area. Travel in avalanche terrain is not recommended.  Stay  off slopes steeper than 30 degrees above the 4,000 foot elevation.  

 

Advisory
Click here to see the full advisory for 2017-02-06
February 6, 2017 at 15:50

High avalanche danger exists across the forecast area. Travel in avalanche terrain is not recommended.  Stay  off slopes steeper than 30 degrees above the 4,000 foot elevation.  

 

Advisory

Pages