Avalanche forecast

Jasper

Apr 4, 2012Parks Canada
View on map
Archived · expired 14 years ago

Avalanche danger

Thu
Fri
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
3 · Considerable

Highlights

A snowfall warning has been issued for Saskatchewan crossing and South starting late Tuesday night with precipitation into Thursday. An intense spring storm from NW U.S. may produce 10-25cm which may start out as rain before turning to snow.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3
    Moderate to strong variable direction winds continue to build slabs on lee slopes. No avalanches have been noted on this layer but bonds have not been tested. Another 10-25cm may arrive Wednesday into Thursday adding to this layer.
  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    The snowpack will remain warm overnight with the possibility of rain on Wednesday eventually turning to snow. Expect avalanche activity at lower elevations.
  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–4
    This layer appears to be waking up as the snowpack absorbs heat. There have been numerous reports of large avalanches especially to the south of us. Triggering is more likely from shallow areas on the slope. Easy time to be caught off guard.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain on Wednesday

Regions covered