Avalanche Forecast
Issued: Mar 29th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Loose Wet.
CB,
Avalanche Canada
Avalanche hazard will increase over the day as daytime warming and solar input weaken the upper snowpack. Pay attention to changing snow conditions on solar aspects if the snow becomes moist or wet.
Isolated glide slab avalanches have been observed in the past few days. Pay attention to these unpredictable hazards and minimize your exposure to terrain below them.
Summary
Confidence
Avalanche Summary
On Wednesday, one sz 3 glide slab avalanche was observed in the Tupper Minor avalanche path.
On Tuesday, one large sz 3.5, glide slab avalanche was observed in the Mounds avalanche path off Mt. Tupper. As well as isolated, wet loose natural avalanches up to size 2 from solar aspects.
On Monday, one glide slab avalanche, sz 2.5 was observed.
Snowpack Summary
Diurnal temperature swings are creating solid crusts on solar aspects in the morning. Strong solar inputs are breaking down crusts, turning the snow to moist in the afternoon. 5-15cm of recent HST can be found on polar aspects.
The snowpack is generally strong and settled, however, the basal weakness of rounding facets/decomposing crust near the ground will remain a concern until the end of the season.
Weather Summary
High pressure ridge holds till Friday when a frontal system brings light precip, mod S'erly winds, and fz lvls ~1200m.
Tonight: Clear, -5*C, light winds, Fz lvl 1000m
Thurs: Sun and cloud, Alp high -1*C, light winds, Fz lvl 1900m
Fri: Cloudy isolated flurries, Alp High -5*C, light SW gusting to mod winds, Fz lvl 1200m
Terrain and Travel Advice
- Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet
- Use appropriate sluff management techniques.
- Minimize your exposure time below cornices.
Problems
Loose Wet
Solar inputs from spring sun are still warming up the snowpack during the heat of the day. Loose wet avalanches are possible in steep terrain. As well, watch for sluffing in steep terrain where the snow is dry.
Aspects: South, South West, West.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Mar 30th, 2023 4:00PM
