Avalanche Forecast

Issued: Feb 14th, 2013 9:59AM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is low. Known problems include Wind Slabs and Loose Wet.

jlammers, Avalanche Canada

Sea To Sky.

Summary

Confidence

Fair - Timing or intensity of solar radiation is uncertain on Friday

Weather Forecast

Friday: Mix of sun and cloud / Light to moderate southwest winds / Freezing level at 2100mSaturday: Very light snowfall / Moderate southwest winds / Freezing level at 1100mSunday: Mix of sun and cloud / Light and variable winds / Freezing level at 1000m

Avalanche Summary

There have been no reports of recent avalanche activity.

Snowpack Summary

Relatively small pockets of stiff wind slab have formed at higher elevations in response to recent light snowfall and strong to extreme southwest winds. In shaded areas at treeline and below the new snow may overlie surface hoar which is reported to be reactive in the Meager Group (upper Lillooet). Several crusts can be found in the snowpack, especially on solar aspects; however, reports indicate these interfaces have settled out fairly rapidly in most areas. The mid and lower snowpack layers are generally strong and well settled. Total snow depths vary from around 400 cm in the south to around 180 cm in the north.

Problems

Wind Slabs

Strong winds have built small yet stiff wind slabs behind ridges and ribs in exposed areas.

Be cautious as you transition into wind affected terrain.>

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

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 2

Loose Wet

Rising freezing levels and the probability of clear weather will increase the likelihood of loose wet avalanche activity on sun-exposed slopes.

Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet.>

Aspects: North, North East, East.

Elevations: All elevations.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Feb 15th, 2013 2:00PM