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

Avalanche Forecast

Mar 30th, 2025–Mar 31st, 2025
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
1: Low
The avalanche danger rating in the alpine will be low
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

Regions: East Island, North Island, South Island, Vancouver Island, West Island.

Check for small storm slabs at upper elevations.

Confidence

Moderate

Avalanche Summary

Looking forward, we expect small storm slabs may have formed at upper elevations. Look for deeper and more reactive deposits on north- and west-facing slopes, formed by south and east winds.

Small loose wet avalanches out of steep terrain on treeline and below treeline slopes were reported on Thursday and Friday around Mt Washington.

Snowpack Summary

Between 5 and 15 cm of new snow is expected by the end of the day on Monday. This falls on 20 cm of moist snow at upper elevations and what we now expect to be a crust below 1100 m, from previous above-freezing temperatures and rain.

The mid-pack contains a robust crust formed in early March. The snow above is well bonded to this crust, and below it, the snowpack is well consolidated and strong.

Weather Summary

Sunday Night

Cloudy with 5 mm, falling as snow above 1400 m. 50 km/h southeast ridgetop winds. Treeline temperature 0 °C. Freezing level 1700 m dropping to 1000 m.

Monday

Cloudy with up to 5 mm, falling as snow above 1000 m. 10 km/h east ridgetop wind. Treeline temperature -1 °C.

Tuesday

Mostly cloudy. 20 to 30 km/h northwest ridgetop winds. Treeline temperature 1 °C.

Wednesday

Partly cloudy. 10 to 20 km/h north ridgetop winds. Treeline temperature 0 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.

Avalanche Problems

Storm Slabs

Where dry snow accumulates, check for storm slabs. Deeper deposits may exist around ridges and leeward terrain, formed by east and southeast winds.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2

Loose Wet

Wet loose avalanches are possible at lower elevations where the snowpack is moist or saturated from rain, or where new snow sees sun and warming for the first time.

Aspects: All aspects.

Elevations: Treeline, Below Treeline.

Likelihood: Possible

Expected Size: 1 - 2