Avalanche Forecast
Issued: Apr 23rd, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Loose Wet and Wind Slabs.
istorm,
Avalanche Canada
Expect continued rain down low, and a sloppy mixture of rain and snow up high. Warm temperatures, rain, and the lack of overnight freeze zaps the strength out of the snow..
Summary
Confidence
Avalanche Summary
No new reports of avalanches on Friday or Saturday. Please remember there are few eyes out in the mountains still submitting regular reports.
Storm Slab or Wind Slab avalanches may occur Monday ion the highest peaks if more than 20 cm of new snow accumulates. At low elevations avalanche activity may increase if snow becomes saturated by rain.
Snowpack Summary
Generally, spring is advancing and the winter snowpack is melting away, at least at lower elevations.
Dry, powder snow may remain at the highest elevations on north-facing terrain, along with the potential for fresh wind and storm slabs. While melt-freeze crusts or moist snow are likely to be found on steep solar slopes and at lower elevations.
Avalanche danger will be closely coupled to warm temperatures, rain, and melting. The more the crust weakens, and the deeper the wetness goes, the greater the hazard from wet loose avalanches.
The mid- and lower-snowpack is generally well-settled. In some areas, the lower snowpack may have a layer of weak facets near the ground.
Weather Summary
Sunday Overnight
Cloudy. Precipitation 5 to 10 mm falling as snow in the alpine, rain down low, and sloppy snow in between . Light to moderate southwest winds. Treeline temperatures around zero and freezing level around 2000 m.
Monday
Mostly cloudy. Trace to 5 mm water equivalent of precipitation (rain low, sloppy snow around treeline, snow alpine). Freezing level remaining between 1500 to 2000m. Treeline temperature around zero. Light westerly wind.
Tuesday
Generally clearing up and drying out kind of day. Trace of precipitation. Ridgetop wind light but gusting moderate from the west. Treeline temperatures near zero in the moring rising to +8 late in the day. Freezing level around 2000 m rising to 2300 m.
Wednesday
Increasing sun and warming up. No preciptiation. Moderate to strong westerly wind, freezing level rising to around 2700 m, treeline temperature could rise as high as +12 C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- The more the snowpack warms-up and weakens, the more conservative you`ll want to be with your terrain selection.
- The more the snow feels like a slurpy, the more likely loose wet avalanches will become.
- Shooting cracks, whumphs and recent avalanches are strong indicators of an unstable snowpack.
Problems
Loose Wet
Temperatures are rising, and staying above zero overnight, which combined with rain zaps the strength out of the snow. Wet loose avalanches will become more likely in steep terrain.
Aspects: All aspects.
Elevations: Treeline, Below Treeline.
Likelihood
Expected Size
Wind Slabs
Expect wind slabs to be most reactive in higher elevation areas that received more recent snow.
Aspects: North, North East, East, South East, West, North West.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 24th, 2023 4:00PM
