Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1–2.5
Contuined Moderate to Strong SW winds are creating wind slabs
Bollettino valanghe
Vedi sulla mappaJasper
Feb 25 – 26, 2021
Archiviato · scaduto 6 years ago
Pericolo valanghe
Fri
Sat
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
2 · Moderato
In sintesi
Another pulse of precipitation and wind will keep the hazard elevated for a few days. Watch for wind effected terrain. Dig down to assess the bond of the new/old snow interface.
Problemi valanghivi
Loose Dry
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1–1.5
Loose dry in steep terrain remain a hazard for ice climbers. Small sluffs could have big consequences in the wrong terrain.
Deep Persistent Slabs
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Unlikely - Possible
- Dimensione
- 1.5–3
Caution in thin snowpack areas where triggering is more likely. This is a low probability but high consequence problem.
Weather Forecast
An additional 10cm of snow is forecasted in the Parkers ridge area over the next 36 hours. This will yet again be accompanied with Moderate to Strong South Westerly winds. Temperatures will be -8 and cooling off to -20 for the weekend
Snowpack Summary
Mod to Strong ridge top winds from the SW have created wind slabs or hard surface conditions in Alp & TL. Wind slabs overlie facets which will bond poorly. In sheltered areas the top 30-60cm is faceted snow over a supportive mid-pack where the snowpack is deeper. Thin snowpack areas are weak, un-supportive, and facetted.
Avalanche Summary
Forecasters down south on 93N noted wide spread wind effect in all alpine and exposed tree line features with strong to extreme snow transport at ridge tops today. Small loose dry observed with the suns help at the heat of the day on South West-West aspects.