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

Avalanche Forecast

Apr 23rd, 2018–Apr 24th, 2018
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
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
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: Northwest Inland.

Sunshine and rising temperatures will elevate the avalanche danger throughout the week. Be aware of changing conditions throughout the day and avoid overhead hazards. This is our final daily forecast for the season which will expire on April 25th.

Confidence

Low - Due to the number of field observations

Weather Forecast

TUESDAY: Mix of sun and cloud. Light to moderate west wind. Alpine temperature +1. Freezing level 1500 m. WEDNESDAY: Sunny. Light northwest wind. Alpine temperature +6. Freezing level rapidly rising to 3000 m. THURSDAY: Sunny. Light southwest wind. Alpine temperature +10. Freezing level 2800 m.

Avalanche Summary

Avalanche reports have been limited due to very few information sources this time of year. If you have been out, please post your observations on the Mountain Information Network (MIN).

Snowpack Summary

Cornices are large and when they fail there is the potential to trigger large avalanches on deeply buried weak layers. Around 40 cm down (up to 100 cm in deeper snowpack areas) there is a weak layer of surface hoar on shaded aspects at high elevations and hard crusts on sun-exposed slopes and below treeline.Sugary facets exist near the base of the snowpack in shallow, rocky snowpack areas.

Avalanche Problems

Loose Wet

Sunshine and warming temperatures will increase the loose wet avalanche activity throughout the week.
Avoid exposure to terrain traps where the consequences of a small avalanche could be serious.Minimize exposure to sun exposed slopes when the solar radiation is strong.Watch for signs that the snow is heating up such as pin-wheeling or the surface snow becoming moist.

Aspects: North, North East, East, South East, South.

Elevations: All elevations.

Likelihood: Likely - Very Likely

Expected Size: 1 - 2

Cornices

Sunshine and warming temperatures will increase the likelihood of cornice failures.
Falling cornices may trigger persistent weak layers deeper in the snowpack.Cornices become weak with daytime heating. Give them a wide berth both from above and below.

Aspects: North, North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1.5 - 3