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Archived

Avalanche Forecast

Mar 11th, 2021–Mar 12th, 2021
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
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
1: Low
The avalanche danger rating below treeline will be low

Regions: Glacier.

The sun will be the main input today, recent new snow will be most reactive where it is preserved over a sun crust

Weather Forecast

A ridge of high pressure building from the SW will keep the park dry for the next few days but the freezing level will rise each day.

Thursday: light W wind, high of -9, freezing level 1000m

Friday: light SW wind, high -2, freezing level 1600m

Saturday: mod SW wind, high -1, freezing level 1900m

Snowpack Summary

5cm new snow Wednesday night brings the total to 20cm in the last 3 days and 48cm since Saturday. A breakable suncrust can be found down 15cm in open areas and a second crust down 25cm on all aspects to treeline, higher on solar aspects

Avalanche Summary

A skier triggered sz 1 windslab was reported from Balu Pass in a NE immediate lee and another on the Youngs Traverse on an E aspect on Wednesday. Several small loose wets were triggered by the sun on Tuesday

Confidence

Due to the number and quality of field observations

Avalanche Problems

Loose Wet

15cm of recent snow may release on the crust below it if it gets enough sun

  • Use extra caution on solar slopes or if the snow is moist or wet.

Aspects: South, South West, West.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 2

Wind Slabs

Small, isolated wind slabs can be found in immediate lee areas and ridge crests in the alpine

  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

Aspects: North, North East, East, West, North West.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2