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Avalanche Forecast

Mar 30th, 2023–Mar 31st, 2023
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: West Island.

Avalanche danger will increase throughout the day on Friday as new snow and wind will form unstable slabs at upper elevations.

Confidence

Moderate

Avalanche Summary

No recent avalanches have been reported on the west side of the island. On the east side of the island there have been reports of small wet loose avalanches on slopes facing the sun over the past few days. Storm and wind slabs will be the main concern as new snow accumulates.

Snowpack Summary

20 to 40 cm of new snow will fall on Friday, with deeper deposits in lee terrain. In most areas this snow is falling on moist or crusty snow layers, except shaded terrain above roughly 1600 m where the snow has remained dry over the past week. The middle and lower snowpack are strong and bonded.

Weather Summary

Thursday night

Cloudy, scattered flurries starting after midnight with 5 to 10 cm of snow, 40 to 50 km/h south wind, treeline temperatures around -4 °C with freezing level dropping to 400 m.

Friday

Flurries increasing in intensity in the afternoon, 20 to 40 cm of snow, 60 to 80 km/h south wind, treeline temperatures around -2 °C with freezing level around 400 m.

Saturday

Scattered flurries with 5 to 10 cm of snow, 30 km/h southwest wind, treeline temperatures around -2 °C with freezing level around 500 m.

Sunday

Scattered flurries with 5 cm of snow, light wind, treeline temperatures around -1 °C with freezing level around 600 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for avalanche hazard to increase throughout the day.
  • Minimize exposure during periods of heavy loading from new snow and wind.
  • Choose low-angled, sheltered terrain where new snow hasn't been wind-affected.

Avalanche Problems

Storm Slabs

New slabs will rapidly form on Friday. Pay attention to snowfall rates and to where the wind is depositing snow.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Very Likely

Expected Size: 1 - 2