Cornices
N
NE
E
SE
S
SW
W
NW
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Likely
- Dimensione
- 1.5–3
Rising temperatures are causing cornices to fall triggering slopes below. Give them a wide berth.
Bollettino valanghe
Vedi sulla mappaJasper
Apr 24 – 25, 2018Parks Canada
Archiviato · scaduto 8 years ago
Pericolo valanghe
Thu
Fri
Alta quota
Senza grado
Limite del bosco
Senza grado
Sotto il limite
Senza grado
In sintesi
Avalanche control is planned for Parker ridge area in late afternoon on Wednesday. Check Alberta 511.
Problemi valanghivi
Persistent Slabs
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Likely
- Dimensione
- 2–3
Triggering this slab would have serious consequences. Cornice failures are acting as triggers.
Loose Wet
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Likely
- Dimensione
- 1–2.5
The next few nights and days will be progressively warmer increasing the probability of loose wet avalanches. Start and end early plus be vigilant of overhead hazard as these avalanches have been gaining mass and running far.
Weather Forecast
This week will be sunny and very warm. Wednesday will be 2600m freezing level but then rise up to 3500m Thursday and Friday.
Snowpack Summary
Sun or temperature crusts extend to treeline and into the alpine on southerly slopes. Persistent slabs can be found on most aspects at treeline and above. These have been reactive to large triggers like cornice failures. Below 1,900m the snowpack is going isothermal on a daily basis.
Avalanche Summary
Tuesday observed a few loose wet avalanches below treeling up to the low alpine. Also a couple of fresh size 2-2.5's slabs were noted in the alpine. The mountains are waking up with the rising temperatures.