Aoraki/Mt Cook — Avalanche Forecast

Avalanche danger in Aoraki/Mt Cook (New Zealand) is 2 — Moderate, valid for Monday, October 12, 2026. Published by New Zealand Avalanche Advisory.

Valid for
Published:
Maximum Danger
2 · MODERATE
Aoraki/Mt CookNZ-mt-cook
2

With a mixture of some new snow up high and rain on snow down low, we're back to a more cautious approach.  Take the time to check out any new to old bond and beware of saturated sloppy snow at lower elevations.

Danger by Elevation

Alpine2Moderate
Treeline2Moderate
Below treeline1Low

Active Avalanche Problems

Wet Snow
Wet Snow
Treeline
Size1/5
FrequencyLikely
StabilityPoor
Wind Slab
Wind Slab
Alpine
Size2/5
FrequencyPossible
StabilityFair

Multiple Loose Wet avalanches observed from last weeks storm cycle. Nothing new reported over the last 72hrs. Conditions not allowing many observations Saturday PM Showers, easing in the afternoon, clearing in the evening. Snow to 1900 metres at first. Northerly gale 80 km/h, easing to northwest 50 km/h by midday, becoming light in the evening.Freezing level 2300 metres, lifting above 3000 metres in the afternoon.  Near ridgelines there have been strong winds and firm conditions. Expect wind scoured slopes and bullet proof snow on northern and north western. If you're heading into the high alpine take an ice axe and crampons.

The snow pack existing a week or so back consisted of a multi layered sandwhich of crusts and moist grains which had mostly settled out, with some cold snow on high shady elevations from a mid month storm. The 26th -27 brought 55mm rain at 1800m at Mueller hut. Snow above 2000m at first then to valley floor. 2nd-3rd Oct had 5-10cm new snow above 2100, Pretty much settled, Wednesday saw 15-20cm new snow above 2000m and a few cm's later in the week, mostly settled out. 5-15cm expected over Saturday Sunday above 2000m  Below 2100m most of the snow is moist to saturated.

Source: New Zealand Avalanche Advisory · View Original Bulletin

Original (EN)

Frequently asked questions

What does avalanche danger level 2 (Moderate) mean?

Heightened avalanche conditions on some steep slopes — careful route selection and terrain evaluation are needed.

How often is the Aoraki/Mt Cook forecast updated?

Avycast refreshes hourly; the bulletin is republished by New Zealand Avalanche Advisory usually once a day during the season.

Who publishes the Aoraki/Mt Cook avalanche forecast?

New Zealand Avalanche Advisory — the official warning service. Avycast aggregates and translates it; always check the original bulletin.

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