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Issued at 5/07/2015 6:21pm. Valid till 6/07/2015 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:
We are likely to see snow down to very low levels (200m) over the next 24 hours. Strong Westerly winds are also likely. Snow accumulations prone to avalanching are likely to develop on a range of aspects but particularly lee to the Westerly 1/2 above 1750m. Avoid ridge line entry points and steep slopes if they are becoming loaded with new snow. Wait for conditions to ease unless you possess advanced back country skills.

Secondary 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:
Snow fell to low levels on a couple of occasions during the past few days and severe gales from the Westerly half have pounded the region recently.The formation of hard slab has occurred on a range of aspects but especially on East facing slopes. This recent loading will be sitting on crusts in some areas and weak faceted (loose) snow in other places. As a consequence, bond strength while improving, remains suspect in places. Avoid ridge line entry points, convex shaped slopes and steep ground if you discover that deposits of wind slab have formed. If unsure, remain on low angled slopes and beware of areas exposed to terrain traps.

Recent Avalanche Activity

Recent Avalanche Activity
Avalanche control work on Sunday produced several small soft slab (size 1) results especially in start zones lee to the W1/2 above 1750m. Information regarding activity on the Divide remains limited as the result of ongoing storms.

Current Snowpack Conditions

Current Snowpack Conditions
Areas of stiff wind driven snow overlay crusts in many places on the surface. Potential weaknesses in the form of facet layers (loose,sugary snow) exist mid pack. The lower pack is mostly composed of dense snow sandwiched between robust crusts and thus, is relatively stable at present

Mountain Weather

Mountain Weather
The weather is pretty unstable at the moment as the result of a disturbed Westerly flow. Snowfall to low levels and severe gale Westerly winds are forecast for Monday so think carefully before heading out. Be prepared to reassess your objectives if conditions begin to deteriorate rapidly.


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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