Avalanche Forecast
Issued: Dec 22nd, 2018 3:48PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
mconlan,
Avalanche Canada
Snowfall amounts for Saturday night and Sunday are uncertain. Treat the hazard as HIGH if you find more than 30 cm of accumulation.
Summary
Confidence
Moderate - Timing, track, or intensity of incoming weather system is uncertain
Weather Forecast
SATURDAY NIGHT: Cloudy with snowfall, accumulation 20 to 30 cm, moderate to strong southwest winds, freezing level 800 m.SUNDAY: Cloudy with snowfall, accumulation 10 to 20 cm, moderate southwest winds, treeline temperature -1 C, freezing level 1000 m.MONDAY: Clearing over the day, light south winds, treeline temperature -2 C, freezing level 1000 m.TUESDAY: Sunny with afternoon clouds, light northwest winds, treeline temperature -3 C, freezing level 700 m.
Avalanche Summary
Although reports are limited in this region there were no signs of avalanche activity around Seymour on Friday, as described in a MIN report here. In the neighbouring Sea to Sky region, many natural and explosive-controlled avalanches have been reported through the last several days in alpine terrain. Similar avalanche activity is likely to be found at high elevations in the South Coast region.
Snowpack Summary
New snow on Saturday and Sunday are falling on a melt-freeze crust that was formed during Thursday’s storm. The new snow may not bond well to the crust. Expect the deepest deposits in lee terrain features around treeline and alpine elevations.
Problems
Storm Slabs
New snow may not bond well to an underlying hard crust. Observe for the bond of the new snow before committing to larger or steeper terrain features. If you get the snow moving, it could entrain substantial amounts of snow and travel far.
Avoid travel near cliffs or gullies, where small avalanches may have severe consequences.Use caution in lee areas. Recent wind loading have created wind slabs.Cornices are large and unstable. Give cornices a wide berth.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 23rd, 2018 2:00PM
