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Archived

Avalanche Forecast

Mar 29th, 2019–Mar 30th, 2019
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Northwest Inland.

Now is the time to get up early to get the goods! Warm and sunny weather may produce loose snow avalanches, especially on southerly aspects. The danger is rated for the warmest part of the day.

Confidence

High -

Weather Forecast

FRIDAY NIGHT - Mainly clear / light northwest wind / alpine low temperature near -1 / freezing level 1500 mSATURDAY - A mix of sun and cloud / light northwest wind / alpine high temperature near 0 / freezing level 1500 mSUNDAY - A mix of sun and cloud / light northeast winds / alpine high temperature near 0 / freezing level 1500 mMONDAY - Mainly sunny / northeast winds, 20-30 km/h / alpine high temperature near +1 / freezing level 1600 m

Avalanche Summary

When the sun comes out and temperatures rise during the day, loose wet avalanches will be likely on sun-affected slopes.

Snowpack Summary

Sun exposed slopes in the alpine and all aspects at treeline and below are becoming moist to wet during the heat of the day. In these areas, spring conditions are in effect; the avalanche hazard will fluctuate greatly depending on the strength of the overnight freeze and how quickly the snowpack is warmed up each day. Check out this guide to managing avalanche hazard during spring conditions here.Dry snow may still be found on shady slopes in the alpine. At these locations, 30-50 cm of well settled snow overlies a layer of weak facets that was buried around March 10th. This is currently the primary layer of concern for human triggering persistent slab avalanches, although there have been no recent reports of avalanches on this layer.Lower down in the snowpack, the base is composed of weak facets. Large avalanches initiating on these facets are unlikely, but feasible, as we go through another period of warming. They are most likely to occur on steep, smooth, rocky, terrain in areas where the snowpack depth is shallow.

Avalanche Problems

Loose Wet

When the sun comes out and temperatures rise during the day, loose wet avalanches will be likely on sun-affected slopes.
Cornices become weak with daytime heating, travel early on exposed slopes.Avoid sun exposed slopes when the solar radiation is strong, especially if the snow is moist or wet.Avoid terrain traps such as cliffs and gullies that increase the consequence of small avalanches.

Aspects: East, South East, South, South West, West.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2