THIS AVALANCHE ADVISORY EXPIRED ON March 9, 2019 @ 6:13 am
Avalanche Advisory published on March 8, 2019 @ 6:13 am
Issued by Jeff Thompson - Idaho Panhandle Avalanche Center

Selkirks/Cabinets

bottom line

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.

 

 

 

 

How to read the advisory

Selkirks/Cabinets

How to read the advisory

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.

 

 

 

 

2. Moderate

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Above Treeline
Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.

2. Moderate

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Near Treeline
Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.

1. Low

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Below Treeline
Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.
    Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
Avalanche Problem 1: Wind Slab
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Winds have been strong from every direction recently. Be heads up about windslabs forming on opposite slopes. The N-NE winds have deposited snow on SW-W-NW slopes as well as normal starting zones.

Avalanche Problem 2: Persistent Slab
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There is a buried persistent weak layer about a meter deep in the snowpack. The layer is pretty wide spread through the Selkirks. Yesterday, the layer of concern was fairly resistant to failure but worth noting.  In some of the pits we dug this week, it was hard to see this layer but it revealed itself while we were conducting tests. Even though is not too reactive now, it is a weakness that can wake up at any moment. 

Weather and CURRENT CONDITIONS
Weather observations from the Region
0600 temperature: 24 deg. F.
Max. temperature in the last 24 hours: 31 deg. F.
Average wind direction during the last 24 hours: SW
Average wind speed during the last 24 hours: 9 mph
Maximum wind gust in the last 24 hours: 33 mph
New snowfall in the last 24 hours: 3'' inches
Total snow depth: 110'' inches
Two-Day Mountain Weather Forecast Produced in partnership with the Spokane NWS
For 2000 ft. to 4000 ft.
Friday Friday Night Saturday
Weather: Snow showers Chance of snow Chance of snow
Temperatures: high 34 deg. F. low 20 deg. F. high 34 deg. F.
Wind Direction: SW SW SE
Wind Speed: 6-8 6-8 6-8
Expected snowfall: >1'' in. >1'' in. >1'' in.
For 4000 ft. to 6000 ft.
Friday Friday Night Saturday
Weather: Chance of snow Chance of snow Chance of snow
Temperatures: High 23 deg. F. Low 14 deg. F. High 23 deg. F.
Wind Direction: SW S SE
Wind Speed: 10-12 G21 10-12 10-12
Expected snowfall: >1'' in. >1'' in. >1'' in.
Disclaimer

Avalanche conditions change for better or worse continually. Backcountry travelers should be prepared to assess current conditions for themselves, plan their routes of travel accordingly, and never travel alone. Backcountry travelers can reduce their exposure to avalanche hazards by utilizing timbered trails and ridge routes and by avoiding open and exposed terrain with slope angles of 30 degrees or more. Backcountry travelers should carry the necessary avalanche rescue equipment such as a shovel, avalanche probe or probe ski poles, a rescue beacon and a well-equipped first aid kit.  For a recorded version of the Avalanche Advisory call (208)765-7323.