Boletín de aludes

Jasper

Feb 4 – 5, 2019Parks Canada
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Archivado · caducó 8 years ago

Peligro de aludes

Tue
Wed
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
3 · Notable

Lo esencial

Extreme cold conditions and road closures make decisions easy for back country activities. Highway 93N remains closed (estimated opening February 4th)

Problemas de aludes

  • Loose Dry

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–1.5
    New low density snow sluffing out of very steep rocky terrain. 
  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–2.5
    Up to 50cm of recent snow followed by strong winds have redistributed the snow into thick slabs well into the terrain.
  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1.5–4
    New snow with strong winds may overload the deep persistent weakness.

Weather Forecast

The deep freeze continues, but with clear skies!Monday: Sunny with cloudy periods with no  precipitation and a  high of -19 C with  light ridge winds.Tuesday: Sunny with cloudy periods with no  precipitation and a low of -22 and High of -14 C with light winds from the North. A detailed mountain weather forecast is available from Avalanche Canada.

Snowpack Summary

50cm new snow in the past 48 hours and recent strong winds. This overlies a variety of surfaces from previous wind effect, sun crust and the Jan 18 surface hoar (most prominent in sheltered locations TL and below). We suspect the recent winds and new snow will be overloading the well settled mid pack and producing large scale avalanches

Avalanche Summary

Limited observations in the forecast region due to highway conditions, poor vis and temperatures too cold to perform helicopter bombing. Forecaster's remote triggered multiple size 1.5 to 2 and had explosive results to size 2 during highway avalanche control yesterday.Help forecast - share observations HERE, on the Mountain Information Network!

Confidence

Regiones cubiertas