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Archived

Avalanche Forecast

Jan 21st, 2017–Jan 22nd, 2017
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
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
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

Regions: South Coast.

Be alert to conditions that change with elevation. Lots of rain at lower elevations might mean lots of snow up high.

Confidence

Moderate - Timing, track, or intensity of incoming weather system is uncertain on Sunday

Weather Forecast

Unsettled weather and slightly warmer than seasonal temperatures for Sunday; a mix of sun and cloud for early next week. SUNDAY: Up to 15cm Saturday overnight into Sunday at higher elevations. Mainly cloudy with flurries possibly bringing an additional 5-10 cm during the day. Moderate southeasterly wind and freezing level around 1200m. Alpine high temperatures to -2 Celsius. MONDAY: Cloudy with sunny periods. Winds light northerly and freezing level around 1300m. TUESDAY: Cloudy with sunny periods. Winds light northwesterly and freezing level around 1000m.

Avalanche Summary

No new observed.

Snowpack Summary

At treeline elevations (1200m) and above, 20-35cm of heavy snow from Thursday-Friday sits on the rain-soaked snow from last week's warmup. This new snow is bonding well to the previous rain-soaked snow surface. At alpine elevations fresh wind slabs could be touchy, especially if we do get as much snow as some forecasts suggest (up to 25cm by Sunday afternoon). The cooling trend early next week is expected to stabilize the snowpack - locking up the moist snow at treeline and below. The mid and lower snowpack are well settled and stable.

Avalanche Problems

Storm Slabs

If you do encounter areas with >20 cm new snow, rein in your terrain use as storm slabs may also trigger deeper, weaker layers.
Minimize overhead exposure during periods of heavy loading from new snow, wind.Minimize exposure to overhead avalanche terrain, large avalanches may reach run out zones.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3