New Zealand Mountan Safety Council

Mackenzie

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Issued at 25/06/2017 12:11pm. Valid till 26/06/2017 6pm

Aoraki/Mt Cook

Mountain
Current avalanche advisory
High Alpine

Above 2000 meters

Alpine

1000 to 2000 meters

Sub Alpine

Below 1000 meters

Avalanche Danger Scale
Avalanche Danger Scale
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Primary Avalanche Danger

Dangerous Aspects
high
Danger Rose
2
Highest Danger Rating
Likelihood
indicator
gauge
Certain
Likely
Unlikely
Size
indicator
gauge
Largest
Small
Trend
indicator
gauge
Increasing
No change
Decreasing
Time of day
clock
Time of day
All day
Alpine level
High Alpine: Above 2000m
Alpine: 1000 to 2000m
Low Alpine: Below 1000m
Description:
The size and likelihood of Windslab avalanches on S and E aspects above 2000m is set to increase over the next 36 hours, especially up on the main divide. Avoid steep slopes subject to freshly wind drifted snow and take care to check local layering and conditions as you move through different zones.

Recent Avalanche Activity

Recent Avalanche Activity
Evidence of a few small slab avalanches can be seen on steep SE aspects of the main divide above 2000m. These probably ran 3 or 4 days ago.

Current Snowpack Conditions

Current Snowpack Conditions
Snow cover below 2000m and out east of the divide is still thin and patchy with many slopes below threshold for avalanching. Higher up on and about the Main Divide winter snow accumulations of 1 to 2 m will be found on sheltered slopes. The last week has seen several small snowfalls with predominantly westerly 1/4 winds and a couple of colder southerly snowfalls. Very few direct observations of the higher elevation snowpack have been made but it seems unlikely that any significant weakness will exist deeper in the pack and that any avalanching that does occur will be limited to the upper layers.

Mountain Weather

Mountain Weather
It is fine after a foggy start to the day at Mt Cook. Light westerly winds can be seen shifting a bit of last nights snowfall off exposed ridgelines, but winds are forecast to pick up ahead of the next front.


MetService
For more information go to: http://www.metservice.com/mountain/index

Forecast by Trevor Streat

Avalanche Forecast Regions:
Mountain Safety Council managed websites
Mountainf Safety Council websiteAdventure Smart websiteNew Zealand Avalanche Center