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Archived

Avalanche Forecast

Apr 12th, 2019–Apr 13th, 2019
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
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
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: South Coast.

A brief return to winter! 20-30 cm of new snow, strong winds, and low freezing levels are forecast to create fresh storm slabs reactive to human triggers by the end of day Saturday.

Confidence

Moderate - Forecast snowfall amounts are uncertain

Weather Forecast

FRIDAY NIGHT: Cloudy / Moderate, southwesterly winds / Alpine low -1 C / Freezing level 1000 m.SATURDAY: Snow; 20-30 cm. (rain below roughly 1000 m.) / Strong, southwesterly winds / Alpine high -1 C / Freezing level 1200 m.SUNDAY: Mostly cloudy / Light, southwesterly winds / Alpine high -1 C / Freezing level 1100 m.MONDAY: Mostly cloudy with flurries; 3-5 cm. / Light, southwesterly winds / Alpine high 2 C / Freezing level 1300 m.

Avalanche Summary

No new avalanches have been reported in the region on Thursday. However, avalanche activity is expected to increase on Saturday with the forecast snow and wind.

Snowpack Summary

10-15 mm. of precipitation on Wednesday fell as moist snow at treeline and rain below which sits on a melt freeze crust. Warm temperatures and wet precipitation are producing a moist, spring snowpack. The snowpack depth decreases rapidly below 1200 m.

Avalanche Problems

Storm Slabs

20-30 cm of new snow, strong winds, and low freezing levels are forecast to create fresh storm slabs reactive to human triggers by the end of day Saturday.
Minimize overhead exposure during periods of heavy loading from new snow and wind.Pay attention to changing conditions with elevation/aspect.Use small slopes without consequence to test the bond of the new snow.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2