Avalanche Forecast
Issued: Nov 25th, 2020 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs, Loose Dry and Persistent Slabs.
Deryl Kelly,
An early season refresh of low density new snow has hidden any lingering, exposed hazards. Excellent riding can be found throughout the forecast region.
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Summary
Weather Forecast
Alpine temps expected to remain steady (-10 to -15) with intermitted, light flurries over the next couple of days. Moderate sw winds at tree line (TL). A further 20mm (~10cm)Â forecast, beginning Friday afternoon, and tampering off by Saturday am. Excellent skiing can be found at TL and, in sheltered areas through the forecast region.Â
Snowpack Summary
The snowpack is highly variable depending on location. Height of snow at Parkers is ~100cm at treeline. The Nov.4 crust found up to 2600m, and is ~70cm deep. Test results on this crust have shown a mix of mod sudden/resistent planar results. Continued wind slab develop on N and E aspects ridge top down into treeline. Basal layers continue to weaken
Avalanche Summary
Avalanche control at Parkers Ridge today produced numerous, loose dry slides and a very healthy sz 2 that swept across the road. Dimensions of the slab, 100m x 200m x 60-100cms depth. Continued, moderate loading from steady sw winds and light HST observed after mid-day.
Confidence
Problems
Wind Slabs
New snow and strong winds have created freshly formed wind slabs in immediate lee's.
- Be careful with wind loaded pockets while approaching and climbing ice routes.
- Use caution in lee areas. Recent wind loading have created wind slabs.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Dry
New HST lingering on cliff sides and ice climbs. Ice Climbers be wary of this over head hazard.
- 874
- Be careful with wind loaded pockets while approaching and climbing ice routes.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
Pockets of previous wind deposited snow overlies the Nov 4 rain crust. Test results are mixed on this layer but appears to be becoming more reactive with increased loads and continued faceting
- Pockets of persistent slabs linger on alpine lee features.
Aspects: North, North East, East, South East, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Nov 26th, 2020 4:00PM
