Bollettino valanghe

Jasper

Jan 4 – 5, 2017Parks Canada

Vedi sulla mappa

Archiviato · scaduto 10 years ago

Pericolo valanghe

Wed

Thu

Alta quota

2 · Moderato

Limite del bosco

1 · Debole

Sotto il limite

1 · Debole

Apri la mappa completa

In sintesi

No significant changes expected leading into the weekend.

Problemi valanghivi

Wind Slabs
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Unlikely - Possible
Dimensione
1–3
Cold temperatures and hard slab conditions make triggering less likely. Triggering from shallow spots remains a possibility.
Persistent Slabs
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Unlikely
Dimensione
1–3
It is less clear where this layer remains. Shallow areas are weakening and breaking down this layer by faceting with cold temps. Be diligent in your snowpack investigation.
Loose Dry
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Possible
Dimensione
1–2
Arctic temperatures faceting the surface snow causing it to loose cohesion and release loose dry avalanches in steep alpine rocky terrain. Particularly concerning for ice-climbers in confined terrain.

Weather Forecast

Extremely cold overnight temps through the forecast area Tuesday night. Warming by mid-day to a reasonable -12. Broken skies and light winds. Some light flurries forecasted for Wednesday afternoon.

Snowpack Summary

Surface snow, alpine pockets and loaded lee features are facetting with the arctic temps and rapidly losing cohesion. Southerly slopes in the alpine have been stripped by previous SW winds and hard slab on lee features. At treeline, the snow is faceted that is barely supportive and weak in shallow areas.

Avalanche Summary

Road Patrol in the Maligne Valley. Loose dry slides up to sz 1.5 out of steep rocky terrain. Slabs up to size 2.5 noted on Mt. Cirrus above and close to the Polar Circus ice climb.

Confidence

The weather pattern is stable

Regioni coperte

Jasper