Watch for fresh storm slabs building, their size and sensitivity to triggering will likely increase throughout the day.
New storm snow may not be bonded well to an underlying crust above 1300 m. The most reactive slabs are expected on north and east facing slopes below ridgetops due to forecast strong to extreme winds.
No recent avalanches have been reported, although several avalanches occurred last week during the warm sunny weather.
The incoming storm is expected to elevate the avalanche danger, increasing the likelihood of human-triggered avalanches.
If you visit the backcountry, please submit your observations to the Mountain Information Network.
10 to 25 cm of new snow is expected to accumulate at upper elevations by the end of the day Wednesday. This new snow may be poorly bonded to an underlying crust.
Strong to extreme southwesterly winds are expected to build thicker and more reactive slabs on lee north and east-facing slopes near ridgetops.
Wet surface snow or an isothermal snowpack may be found below the rain/snow line which is expected between 1000 and 1300m throughout the day.
The mid and lower snowpack is generally settled and strong, with no concerns at this time.
Tuesday Night
Cloudy with 0 to 5 cm of new snow possible. 50 to 60 km/h southeast ridgetop wind. Treeline temperature drops to around -1 °C. Freezing level drops to around 1000 m.
Wednesday
Cloudy with 10 to 25 cm of new snow/moderate to heavy rain. Up to 80 km/h southwest ridgetop wind. Treeline temperature around 0 °C. Freezing level rising to around 1300 m.
Thursday
Cloudy with 2 to 10 cm of new snow possible. 30 to 40 km/h southeast ridgetop wind. Treeline temperature around 0 °C. Freezing level rising to 1200 m.
Friday
Mostly cloudy with 0 to 3 cm of new snow/light rain. 10 to 20 km/h east ridgetop wind. Treeline temperature around 1 °C. Freezing level rising to 1500 m.
More details can be found in the Mountain Weather Forecast.
