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Issued at 3/09/2015 10:37am. Valid till 4/09/2015 6pm

Wanaka

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
Report TutorialPrint Reporthear report

Primary Avalanche Danger

Dangerous Aspects
high
Danger Rose
3
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:
A significant amount of new snow has fallen over the past 48 hours. At the same time, frequent wind shifts through the Westerly 1/2 have occurred and this will continue on Thursday with Southerly winds in the morning swinging back to the NW later in the day. Wind slab is likely to have formed on a range of aspects but especially East facing slopes above about 1500m. Avoid ridge line entry points and other steep terrain if you encounter stiff, wind driven snow. If you are finding decision making challenging, remain on low angled terrain.

Secondary 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
10am - 3pm
Alpine level
High Alpine: Above 2000m
Alpine: 1000 to 2000m
Low Alpine: Below 1000m
Description:
Loose, wet avalanche activity is likely on Thursday particularly if temperatures begin to rise rapidly. Beware narrow gullies and other confined terrain.

Recent Avalanche Activity

Recent Avalanche Activity
No back country avalanches reported in the past 48 hours but storm activity and long spells of poor visibility have hampered observations. Local heli ski operators have recently reported multiple wet slides especially on Northerly aspects above 1800m.

Current Snowpack Conditions

Current Snowpack Conditions
A significant quantity of cold,dry snow has fallen over the past 48 hours and as it is sitting on slick crusts in many places, it will take time to fully bond. The snow which fell last week appears to have bonded well. In general, the mid and lower pack is stable at the moment.The facet layers (loose,sugary snow) which were of concern for some time, are breaking down helped, by a run of warmer temperatures. We are seeing a rapid change to Spring conditions on the solar (North facing) aspects.

Mountain Weather

Mountain Weather
Snow showers to low levels (below 1000m) will continue on Thursday. Winds from the Southerly 1/4 (50kph) will swing back to the NW by nightfall. It is important to remember that even if skies are clear, strong winds can shift snow and quickly create avalanche hazard.


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

Forecast by Simon Howells

Mountain Safety Council
Avalanche Forecast Regions:
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Mountainf Safety Council websiteAdventure Smart websiteNew Zealand Avalanche CenterNational Incedent Database website