Increased Avalanche Danger Prompts Warning

Media Release

Backcountry snow enthusiasts keen to hit the mountains following the recent snowfall are being encouraged by NZ Mountain Safety Council (MSC) to be patient, as the avalanche danger has increased across the motu.

The storm system that swept over the country earlier this week has significantly increased the avalanche danger across most mountainous areas, says MSC, which operates the New Zealand Avalanche Advisory (NZAA). The NZAA avalanche danger is currently rated ‘considerable’ for most of the country.  

The three-day storm brought significant snowfall to alpine regions throughout the mid-to-lower South Island, in particular to South Canterbury, and the Mackenzie Country and Southern Lakes.  

“A ‘considerable’ rating requires careful snowpack evaluation, cautious route-finding and conservative decision-making.” said MSC Chief Executive Mike Daisley. “Only highly experienced and well-equipped people should consider backcountry travel in avalanche terrain during this time.”

Avalanche forecasts on the NZAA, which cover 13 backcountry alpine regions around Aotearoa, are updated on a daily basis, or as conditions change and new information becomes available. For Thursday, Taranaki, Tongariro, Mt Hutt, Aoraki/Mt Cook, Ohau, Two Thumbs, Wānaka and Aspiring all have a ‘considerable’ rating.

“While ski fields have been carrying out avalanche control work for their patrons, this does not extend to the backcountry. Time is required for the snowpack to settle and stabilise,” says Mike.

Areas that have seen high winds in the wake of the storm are reporting ‘wind slab’ avalanche concerns in the alpine.

“Our forecasters will be undertaking careful investigation to better understand this hazard as the weather improves and will be updating the avalanche advisory accordingly,” says Mike.

“If you’re heading into the backcountry, it’s essential to check the avalanche advisory for the most up-to-date information and follow the guidance. It’s also important to get #AvalancheReady, which means getting the training and the gear too before venturing out.”