Avalanche forecast

Cariboos

Dec 14 – 15, 2012Avalanche Canada
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Avalanche danger

Sun
Mon
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–5
    Expect buried windslabs in sheltered area and newly formed windslabs in exposed lee slopes and cross-loaded gullies below ridge crests.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely
    Size
    3–6
    The early November rain crust continues to give results in snow pit tests, however it has not been active.

Confidence

Fair - Timing, track, or intensity of incoming weather is uncertain on Monday

Weather Forecast

Overnight and Saturday: Light snowfalls overnight as a ridge of high pressure remains over the region. Strong Southwest winds tonight becoming very strong as an upper trough moves into the region during the day. Expect 15-20 cms during the afternoon and evening on Saturday.Sunday: Another weaker pulse of precipitation is expected to be combined with moderate to strong Southwest winds. Freezing levels should remain at valley bottoms.Monday: A strong frontal system will cross the region spreading moderate to heavy precipitation. Freezing levels may rise to just above valley bottoms. 

Avalanche Summary

No new avalanches were reported for this region. Due to our limited observations for this region at this time, your avalanche observations are welcome at [email protected]

Snowpack Summary

Windslabs should grow slightly tonight in specific areas (Easterly aspects) in the alpine and at treeline with the forecasted light precipitations, moderate winds and the older snow available for transport. The new snow is also burying some older slightly deeper windslabs in sheltered areas. Overall, the top and mid-snowpack is reported to be settling well. The deep persistent instabilities (surface hoar and early November crust) located in the middle and near the bottom of the snowpack are still a concern in this region, however, it is important to know that we have very limited observations for this region at this time. Digging down and making your own observations will be critical to safe slope selection. Any observations from the field are welcome at [email protected].

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