Avalanche Forecast
Issued: Nov 10th, 2020 8:00AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
Kate Ryan,
Extra caution on steep solar aspects in the alpine, where recent North winds have deposited pockets of windslab on a sun crust.
Sharpen your edges and cat-like reflexes for travel at treeline and below.
Summary
Weather Forecast
Cool and unsettled conditions across the province today.
Today: Cloudy with scattered flurries accumulating to 4cm. Alpine high -9*C, freezing level 900m. Winds Light-NW.
Tonight: Cloudy with clear periods. Alpine low -12*C, freezing level at valley bottom. Winds Light-NW.
Wednesday: A mix of sun and cloud. Freezing level 600m. Winds Light-W.
Snowpack Summary
The 5cm received overnight adds to the dust on crust to treeline. Last week's storm gave heavy rain as high as 2500m, and over 50cm of snow accompanied by extreme W winds at upper elevations. The weekend saw strong N'ly winds, causing reverse loading of storm snow into S'ly lees.
Avalanche Summary
No new avalanches reported yesterday. See the MIN for a recent Sa size 1 on a steep south aspect, where the recently formed windslab was triggered on top of the Nov 5 crust.
A significant loose wet avalanche cycle occurred with the last storm with slides up to size 3; the debris from this is now refrozen and presents a significant hazard to skiers.
Confidence
Problems
Wind Slabs
Reverse loading from outlfow winds has built small pockets of windslab in immediate lees. These sit on a firm crust below 2500m and higher on steep solar aspects.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Use safe ski cutting techniques to enter your line.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Nov 11th, 2020 8:00AM
