Lawinenlagebericht

Banff Yoho Kootenay

Apr 30 – May 1, 2014Parks Canada
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Archiviert · abgelaufen 12 years ago

Lawinengefahr

Fri
Sat
Hochgebirge
4 · Gross
Waldgrenze
4 · Gross
Unterhalb
4 · Gross
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Kernpunkte

There will not be a strong freeze tonight - skies will be cloudy with some clear periods and freezing levels will only dip to approximately 2500 m.  Crusts will not form well tonight and will break down early.

Lawinenprobleme

  • Loose Wet

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    1–3
    Expect loose avalanches in steep sun affected terrain initiating from cornice failures or snow falling off cliffs/rocks.

  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    3–4
    Without a good freeze tonight and warm temps on Thursday, it would not be a surprise to see the odd large avalanche on this layer.

Weather Forecast

There will not be a strong freeze tonight.  Freezing levels will only dip to 2500 m for a short period tonight and a slight temperature inversion is expected.  Thurs will be cloudy with some sun alpine temps of 10-14C &  showers/flurries move in overnight. Friday temperatures will drop through the day, with 5-10 cm/day forecasted for Fri/Sat & Sun.

Snowpack Summary

A solid melt freeze crust to exists up to 2400 m, a little lower on North aspects. Dry uncrusted snow with up to 10cm of settled powder exists only steeper North aspects. Isolated, small windslabs exist in leeward areas in the high alpine. Crusts will not be as strong Thursday with a lack of overnight freeze and a slight inversion forecasted.

Avalanche Summary

Several loose snow avalanches to size 2.5 pouring off cliffs with sun affect as early as 8 am.

Confidence

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