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Avalanche Forecast

Archived

Feb 25th, 2024–Feb 26th, 2024

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural and human triggered avalanches likely.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.

Regions

North Island.

We have limited field observations since Saturday's snowfall so if you go out, be sure to assess conditions as you travel. And then share what you find on the Mountain Information Network!

Confidence

Low

Avalanche Summary

No new avalanches have been reported.

Snowpack Summary

20 to 30 cm of dry new snow sits over a crust or moist snow. At upper elevations the new snow has likely been redistributed by wind.

The mid and lower snowpack is generally uniform, with no significant layers of concern.

Below treeline, most areas are below threshold for avalanches.

Weather Summary

Sunday night

Mostly cloudy. 40 to 60 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 500 m.

Monday

A mix of sun and cloud. 30 to 50 km/h northwest ridgetop wind. Treeline temperature -2 °C. Freezing level 500 m.

Tuesday

Mostly cloudy. 20 to 40 km/h northwest ridgetop wind. Treeline temperature -2 °C. Freezing level 300 m.

Wednesday

20 to 40 cm of new snow. 70 to 90 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1200 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • The new snow may require another day to settle and stabilize.
  • Closely monitor how the new snow is bonding to the crust.
  • Start on smaller terrain features and gather information before committing to bigger terrain.
  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.