Haute-Tarentaise — Avalanche Forecast

Storm Slab

Above 2400m

Wind Slab

Above 2200m

Persistent Slab

Above 2300m

Problems extracted by AI from bulletin text. May be inaccurate.

New wind-driven instabilities. Triggering by people: - Above 2700/2800 m, a few new instabilities in wind-transported recent snow. These few small instabilities in loose or wind-compacted snow are maintained by the small snowfalls up to Sunday morning and by fairly strong south-west sector wind throughout the day. These slabs cause small avalanches, size 1. - On north-facing slopes above 2800/3000 m, the persistent weak layers are still not deeply buried and therefore can be triggered. Breaks generally 30/40 cm, and up to 50 cm in better snow-covered areas, Col du Petit Saint Bernard sector. The extent of the slabs is still limited by the modest snow cover, so size 1 is expected above all; in well-exposed, smooth terrain, the rare size 2 can be reached. - Below 2800/3000 m, the snowpack is thin and any instabilities are modest. Natural releases: - Rare small releases of wind-affected snow cannot be ruled out near ridgelines and slope breaks, on north aspects above 2700 m over the course of the day, with wind transport and the thickening of the slabs. Small avalanches, size 1.- Rare small sluffs in steep, sunny terrain during the day.

Snow cover: the dusting of the alpine meadows does not hide the snow-cover deficit very well, except in high mountains with a slightly more wintry appearance. Skiable limit: only on north aspects on the meadows beyond 2400 m, or on glaciers (not too crevassed). Snow quality: dusting from 1800/2000 m; the night snowfall from Saturday to Sunday brings 3/10 cm of wind-affected fresh snow without a weak layer at 2200 m. In the north, the thickness of recent snow becomes significant from 2600 m (7/15 cm), then quickly 20/30 cm from 3000 m. Recent snow is often powdery over a hard surface, becoming wind-worked. Weak layer from 2300/2800 m. In the south, you need to go above 2800 m to find wind-affected recent snow and often wind crusted snow.