Forecast snowfall amounts for Tuesday are highly uncertain. Pay close attention to how much snow falls in your area, and choose terrain accordingly.
Summary
Confidence
Low - Forecast snowfall amounts are uncertain on Tuesday
Weather Forecast
On Tuesday expect 5-15cm of new snow. A dry ridge should ensure mainly sunny skies for Wednesday and Thursday. Ridgetop winds should be extreme from the southwest on Tuesday, becoming light on Wednesday and Thursday. Freezing levels should sit at about 1300m on Tuesday and then climb to about 3300m for Wednesday and Thursday.
Avalanche Summary
Observations were extremely limited on Sunday, but in the neighboring Sea to Sky region we received reports of heat-induced natural loose wet and cornice avalanches to size 1.5. New wind slab activity is expected in response to new wind and snow on Tuesday.
Snowpack Summary
On Sunday night and Monday 5-20cm of new snow fell with the highest accumulations in the southwest of the region. The new snow was shifted by strong southerly winds into fresh wind slabs in wind-exposed terrain. Due to the temperature trend in the storm (warm to cold), the new snow likely developed a reasonable bond to older surfaces which include a mix of hard crusts on high elevation solar aspects, settled dry snow in north-facing alpine terrain, and moist snow everywhere else. Below the new snow, the snowpack is generally strong and well-settled. Cornices are huge and will become weak with future warming and solar radiation.
jlammers,
Avalanche Canada
