Avalog
Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Register
Login
Archived

Avalanche Forecast

Apr 10th, 2018–Apr 11th, 2018
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Lizard-Flathead.

Be aware of the potential for moist or wet snow avalanches during the heat of the day, or if the sun makes an appearance. And pay attention to overhead hazards, like cornices.

Confidence

Moderate -

Weather Forecast

TONIGHT: Cloudy, precipitation trace. Ridge wind moderate to strong, southwest. Alpine temperature near 0. Freezing level lowering to 1500 m.WEDNESDAY: Mix of sun and cloud. Ridge wind moderate, southwest. Alpine temperature near -2. Freezing level 1800 m.THURSDAY: Cloudy, flurries. Accumulation 5-10 cm. Ridge wind light to moderate, southwest. Alpine temperature near -5. Freezing level 1500 m.FRIDAY: Mostly sunny. Ridge wind moderate to strong, west. Alpine temperature near -2. Freezing level 2000 m.

Avalanche Summary

On Monday there was a report of a natural size 2.5 loose, wet avalanche that failed overnight on a northeasterly aspect in the alpine and ran for 600 m.  Widespread storm slab and loose wet avalanche activity up to size 2.5 was reported on Sunday following Saturday's storm. The new snow was reactive to skier and explosive triggers on all aspects above 1400 m. And one natural size 2.5 was reported on an easterly aspect at 1550 m.On Friday skier's reported a close call on wind-loaded slope on a southeast aspect at 1940 m. Read their MIN report here.

Snowpack Summary

Rising freezing levels have caused the recent 25 cm of storm snow to become moist up to ridge top elevations, with minimal overnight re-freeze. Below 1400 m, rain has soaked the snow surface.There are some reports of a surface hoar layer roughly 100 cm deep on north aspects at treeline, but no recent avalanche activity on this layer. Below this, the mid-pack is generally well settled and strong.A layer of sugary facets around a crust exists near the bottom of the snowpack, but this layer has been inactive for some time.

Avalanche Problems

Loose Wet

Rising freezing levels and daytime warming have been triggers for recent large, loose, wet avalanches. Once moving, a loose, wet release may have the potential to trigger a slab on a deeper weak layer.
Use extra caution on slopes if the snow is moist or wet.Cornices become weak with daytime heating. Be sure to give them a wide berth.Minimize exposure to sun exposed slopes when the solar radiation is strong.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 2.5