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Archived

Avalanche Forecast

Mar 29th, 2023–Mar 30th, 2023
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
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
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

It will likely still be warm with a mix of sun and cloud on Thursday. If the sun stays out for an extended time think about an increase in the likelihood of loose wet avalanches running in steep terrain facing the sun.

Confidence

High

Avalanche Summary

No significant avalanches were reported in the past few days.

Snowpack Summary

There is likely a thin crust on steep slopes facing the sun right up into the alpine. Any recent new snow has been redistributed by northeast winds. On high north-facing terrain wind slabs may sit over facets and surface hoar.

The mid-snowpack is generally strong. There continues to be a weak layer of facets from November at the base of the snowpack. This layer remains a concern in rocky, shallow, or thin to thick snowpack areas at treeline and above.

Weather Summary

Wednesday Night

Mostly cloudy. Light northeast wind. High of -9 °C at treeline. Freezing level at valley bottom.

Thursday

Mostly cloudy with sunny breaks. Light northeast wind. High of -1 °C at treeline. Freezing level at 1700m.

Friday

Mostly cloudy with scattered flurries. Light to moderate southwest wind. High of -4 °C at treeline. Freezing level 1400m.

Saturday

Mostly cloudy with flurries. Light southwest wind. High of -4 °C at treeline. Freezing level 1300m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet
  • In areas where deep persistent slabs may exist, avoid shallow or variable depth snowpacks and unsupported terrain features.

Avalanche Problems

Deep Persistent Slabs

A weak layer of facets exists near the base of the snowpack. The likelihood of human triggering is low given the layer's depth. Suspect terrain for human triggering includes steep, shallow, and rocky terrain where the snowpack transitions from thin to thick.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 2.5 - 3.5