Avalanche Forecast

Issued: Apr 3rd, 2019 4:22PM

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

mbender, Avalanche Canada

Sea To Sky.

There is a lull between weather systems on Thursday. The taps are expected to turn on Friday and Saturday again.

Summary

Confidence

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

Weather Forecast

WEDNESDAY Night: Mainly cloudy with scattered flurries / moderate southwest wind / alpine temperature -3 C / freezing level 1400 mTHURSDAY: Mainly cloudy with sunny breaks / light to moderate south wind / alpine temperature 2 C / freezing level 2000 mFRIDAY: Flurries, accumulation 5-10 cm at upper elevations / moderate to strong south wind / alpine temperature -1 C / freezing level 1600 mSATURDAY: Snow, accumulation 20-30 cm at upper elevations / moderate to strong south wind / alpine temperature -2 C / freezing level 1400 m

Avalanche Summary

No new avalanche activity to report.

Snowpack Summary

5-15 cm of new snow falling Wednesday has been redistributed at upper elevations by southwesterly winds. This sits on a melt-freeze crust or wet snow depending on elevation, except for north aspects above 2000 m where it may be sitting on dry snow and/or weak feathery surface hoar. Below 1800 m the entire lower snowpack is either moist or wet.

Problems

Wind Slabs

Precipitation falling as snow at uppermost elevations with predominantly southerly winds is expected to develop thin wind slabs in the lee of terrain features.

Be cautious as you transition into wind affected terrain.Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

Aspects: North, North East, East, North West.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 1.5

Valid until: Apr 4th, 2019 2:00PM