Persistent Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Unlikely
- Taille
- 3
It's spring... the fight between winter and summer and we've seen the full meal deal of weather conditions and that means the snowpack's been all over the map. From warm to warmer and then downright hot, the snow surface turned damp and unsupportable. But just like a superhero, the mid week storm and much colder air saved us in the nick of time, allowing the pack to knit together, tighten up, become stronger, and it's returned to its happy place. In essence, the persistent weak layer or PWL has gained strength and hardness and the snow above it is solidly refrozen. The good news is... this increased strength makes it pretty unlikely that you can trigger an avalanche that breaks around our now dormant problem child the PWL.