Archived

Avalanche Forecast

Mar 22nd, 2017–Mar 23rd, 2017

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

4: High

The avalanche danger rating in the alpine will be high

Treeline

4: High

The avalanche danger rating at treeline will be high

Below Treeline

3: Considerable

The avalanche danger rating below treeline will be considerable

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

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

Regions: South Coast.

Uncertainty exists with the freezing level in the coming days. Expect to see rain to mountain top except in the highest reaches of the region.

Confidence

Moderate - Intensity of incoming weather systems is uncertain on Friday

Weather Forecast

THURSDAY: Flurries or rain showers, accumulation 5-10cm / Moderate to strong south wind / Alpine temperature 0 / Freezing level 1200mFRIDAY: Snow and rain, accumulation 20-30cm / Moderate to strong southwest wind / Alpine temperature -1 / Freezing level 1100mSATURDAY: Flurries, accumulation 5cm / Moderate to strong southwest wind / Alpine temperature -4 / Freezing level 1000m

Avalanche Summary

No recent avalanches have been reported in the region. Expect thin loose wet avalanches in the alpine and tree line elevation bands in the coming days. In the highest alpine areas where the latest precipitation may have fallen as snow expect to see reactive storm and wind slabs.

Snowpack Summary

On Wednesday there was heavy rain up to approximately 1400m. The rain has fallen on already moist or wet snow sitting above a strong and well settled snowpack. In the highest elevation terrain expect storm and or wind slabs to be sitting above a a strong rain crust.

Avalanche Problems

Loose Wet

With rain to 1400m expected for Wednesday expect to see small loose wet avalanches at upper elevations. The expected size of avalanches will increase with elevation; the largest size range being higher in the alpine elevation band.

Watch for terrain traps where small amounts of snow will acumulate into deep deposits.Be alert to conditions that change with elevation.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Wind Slabs

Be cautious as you transition into wind affected terrain.Minimize exposure during periods of heavy loading from new snow and wind.

Aspects: North, North East, East, South East.

Elevations: Alpine.

Likelihood: Possible - Likely

Expected Size: 1 - 3