Wind slabs can step down to deeply buried weak layers, creating very large avalanches.
Choose smaller, low-consequence terrain.
Northeast outflow winds in the past 24 hours have created fresh pockets of wind slabs in southwest-facing terrain. Wind slabs may overlie a weak layer of facets and could remain reactive for longer than usual.
Cornices are large, looming, and may trigger large persistent slabs on slopes below.
There are multiple persistent weak layers of facets or crust/facets combinations in the top 200 cm of the snowpack. Avoid steep, rocky, and wind-affected areas where triggering these slabs is more likely.
A very large avalanche resulted in a fatality on March 22 near Mt McDonell. More information can be found here.
Cornices are large and looming. Avoid travelling underneath them.
Strong northeast winds have created wind-affected surfaces and wind slabs over a weak layer of crust/facets that have recently been reactive to human triggers.
There are multiple persistent weak layers of facets or crust/facets combinations in the top 200 cm of the snowpack. These layers are most likely to trigger in wind-affected areas or a shallow or thick-to-thin snowpack.
Tuesday Night
Mostly clear skies. 40 to 50 km/h northeast ridgetop wind. Treeline temperature -12 °C.
Wednesday
Sunny. 15 to 30 km/h northeast ridgetop wind. Treeline temperature -17 °C.
Thursday
Sunny. 20 km/h northeast ridgetop wind. Treeline temperature -17 °C.
Friday
Sunny. 20 km/h northeast ridgetop wind. Treeline temperature -15 °C.
More details can be found in the Mountain Weather Forecast.
