Avalanche Advisory published on January 23, 2018 @ 6:38 am
This Avalanche Advisory expires in 14 hours, 52 minutes
This advisory is valid for 24 hours
Issued by Jeff Thompson - Idaho Panhandle Avalanche Center

Kootenai
Selkirks/Cabinets

bottom line

The buried surface hoar layers that has kept us at an elevated avalanche danger rating is still alive and well. Don't let your guard down...in fact, we might see an increase in danger as this next storm arrives and puts a bigger a load on top of the weak layers.  The storm that has arrives looks to strong with the likelyhood of producing up to 2' of snow at upper elevations by Friday. Stay tuned...We'll keep you updated.

How to read the advisory

Kootenai
Selkirks/Cabinets

How to read the advisory

The buried surface hoar layers that has kept us at an elevated avalanche danger rating is still alive and well. Don't let your guard down...in fact, we might see an increase in danger as this next storm arrives and puts a bigger a load on top of the weak layers.  The storm that has arrives looks to strong with the likelyhood of producing up to 2' of snow at upper elevations by Friday. Stay tuned...We'll keep you updated.

3. Considerable

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Above Treeline
Dangerous avalanche conditions. Careful snowpack evaluation, cautious route-finding and conservative decision-making essential.

3. Considerable

?

Near Treeline
Dangerous avalanche conditions. Careful snowpack evaluation, cautious route-finding and conservative decision-making essential.

2. Moderate

?

Below Treeline
Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
    Dangerous avalanche conditions. Careful snowpack evaluation, cautious route-finding and conservative decision-making essential.
Avalanche Problem 1: Persistent Slab
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With the arrival of strong system of snow and wind, we could see a significant increase in load especially in wind loaded areas. A new load of snow will increase the tension being put on the weak layers in the snowpack. 

Avalanche Problem 2: Storm Slab
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An arriving system of snow looks like it will deposit a signifigant amount of snow over a short period of time.  Expect to see over 12'' of snow above 4500' by Satuarday 

 

 

 

 

Avalanche Problem 3: Wind Slab
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 This storm looks like it will produce high winds which helps increase the load on leeward slopes. Be aware and newly loaded leeward slopes. 

Weather and CURRENT CONDITIONS
Weather observations from the Region
0600 temperature: 21 deg. F.
Max. temperature in the last 24 hours: 27 deg. F.
Average wind direction during the last 24 hours: W
Average wind speed during the last 24 hours: 20 mph
Maximum wind gust in the last 24 hours: 61 mph
New snowfall in the last 24 hours: 2-8'' inches
Total snow depth: 220cm inches
Two-Day Mountain Weather Forecast Produced in partnership with the Spokane NWS
For 2000 ft. to 4000 ft.
Today Tonight Wednesday
Weather: Snow Snow Snow
Temperatures: 35 deg. F. 33 deg. F. 37 deg. F.
Wind Direction: becoming NE E SW
Wind Speed: 5-8 5-8 7-9
Expected snowfall: >1'' in. 3-5'' in. 1-3'' in.
For 4000 ft. to 6000 ft.
Today Tonight Wednesday
Weather: Snow Snow Snow
Temperatures: 25 deg. F. 20 deg. F. 31 deg. F.
Wind Direction: S S S
Wind Speed: 15-18 15-18 18-20
Expected snowfall: 2-4'' in. 9-13'' in. 4-8'' 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.

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