Boletín de aludes

Vancouver Island

Jan 5 – 8, 2018VIAC
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Archivado · caducó 9 years ago

Peligro de aludes

Sat
Sun
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Very Likely
    Tamaño
    1–3
  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3
  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Certain
    Tamaño
    1–3

Confidence

Moderate- few alpine but good treeline and below treeline observations, weather forecast models mainly in agreement.

Travel/Terrain Advice

Friday avoid exposure to terrain traps as wet loose slides tend to pack a punch. Stay away from gullies, and don't travel above cliffs, trees, rocks, and depressions that are exposed to large steep slopes above. Give avalanche paths and their runout zones a wide berth as wet sides tend to travel further than we expect. Sunday avoid convex, unsupported and steep open slopes in the alpine especially on north-west aspects where the wind will load start zones significantly. Take extra caution when moving up from one elevation band into the next.

Past Weather

No new snow in the forecast area with light-moderate (16-26 km/h) south to south east winds. Daytime temps were warm from 0 to 10 degrees in the alpine and treeline with cold temps only lingering near valley bottom. Light to moderate rain began late afternoon on Thursday all the way up into the alpine.

Avalanche Summary

No new avalanche activity was reported.

Snowpack Description

Surface - freezing levels and warm temps during the day have caused moist surface snow conditions on all aspect and elevations. Upper - Previous new snow has settled rapidly with the warm temps and is moist on all aspects and at all elevations. This snow is bonding well to the December 15 crust. Mid - Well settled. Snow pit tests produced only hard results on the mid November crust and concerns are limited even more by the bridging December 15 crust above. Lower - Well settled.

Weather Forecast

Warm temps, high freezing levels and rain Friday will begin to wain mid afternoon to the north and in the evening to the west and south. New snow will fall in the mountains late Friday and Saturday in light to moderate amounts. Saturday night-Sunday a new big system will arrive with strong south east winds and incredible new snow. Forecast amounts for this bulletin time frame show a potential of 14-50 cm of new. Yeah! Fri - 15-40 mm of rain tapering into 2-10 cm of new snow. Winds moderate-strong 20-50 km/h from variable directions. Freezing levels of 2400-750 m Sat - 2-10 cm of snow. Winds light early on from the west-south west, increasing to strong 40-50 km/h from the southeast, pushing our wonderful snow filled system our way Freezing levels of 500-800 m Sun - 10-30 cm of new snow. Winds strong south east tapering to light 45-13 km/h. Freezing levels of 550-900 m

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