Bollettino valanghe

Coquihalla

Apr 19 – 20, 2023Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 3 years ago

Pericolo valanghe

Fri
Sat
Alta quota
1 · Debole
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole

In sintesi

Continue practicing safe travel habits, including staying well back from cornices.

Problemi valanghivi

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1.5–2.5

    Use caution when travelling along ridgelines, as cornices are very large at this time of year.

Confidence

High

Avalanche Summary

A few small (size 1) wet loose avalanches were observed out of steep and rocky terrain on Wednesday. Riders also triggered some small (size 1) wind slabs on Tuesday.

Looking forward, small wet loose avalanches could be triggered during periods of sunny skies but they are unlikely to impact riders. Use plenty of caution along alpine ridges, where cornices may be large.

Snowpack Summary

Around 5 to 10 cm of dry snow overlies a hard melt-freeze crust. The snow may moisten on sun-exposed slopes during sunny conditions and freeze into a melt-freeze crust overnight.

The remainder of the snowpack is strong with varying hard snow layers and bonded melt-freeze crusts. Cornices are large along many alpine ridges.

Weather Summary

Wednesday Night

Mostly cloudy with isolated flurries, accumulation 1 to 3 cm, 20 to 30 km/h southwest wind, treeline temperature -6 °C.

Thursday

Mostly cloudy with periods of sunny skies and no precipitation, 20 km/h southwest wind, treeline temperature -3 °C, freezing level 1500 m.

Friday

Cloudy with snowfall, accumulation 5 to 10 cm, 30 to 40 km/h southwest wind, treeline temperature -4 °C, freezing level 1400 m.

Saturday

Cloudy with rain or snow, accumulation 5 cm, 30 to 40 km/h southwest wind, treeline temperature 0 °C, freezing level 1900 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Minimize exposure to sun-exposed slopes when the solar radiation is strong.

Regioni coperte