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Issued at 24/07/2014 3:27pm. Valid till 25/07/2014 6pm

Craigieburn Range

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
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 danger rating remains on Moderate for the Alpine and High Alpine in the coming 24 hours. South Westerly winds will continue to blow and move any available snow onto lee slopes further building wind slabs. These slabs are expected to be reactive to single person loads as they overlie a weak pack which is made up of early season crust and facets. Keep an eye out for any signs of fresh wind loaded snow especially on Easterly aspects or cross loaded around rock features. Although snow totals are low if caught in even a small slide the consequence may be high with so much rock around.

Recent Avalanche Activity

Recent Avalanche Activity
Porters ski area have reported cracking and whumphing on a Easterly aspect yesterday at 1800m. A size 1.5 released as patrol staff were touring up hill and propagated 80m from their ski tips. This slide has not run far due to low angle terrain.

There has been new reports in the back country today. If you are heading out please let us know your observations through the link on the left of this page.

Current Snowpack Conditions

Current Snowpack Conditions
There appears to be higher snow totals in the south of the range. Warmer temps today and in the coming days will help the pack and promote settlement within buried persistent weak layers. However at this time the snow on the ground remains weak. A thin total snow amount has resulted in a weak faceted layer above early season rain crusts. This interface in conjunction with an overlying rime event have resulted in a persistent weak layer which is reactive to single person loads. Reports suggest propagation is starting in thin areas around rock features and shooting out into wind slabs created on lee slopes for the South Westerly winds from earlier in the week.

Mountain Weather

Mountain Weather
The weather should remain fine with South West winds overnight tonight(Thursday) easing into Friday and the freezing level rising. Morning cloud should hopefully burn off as the day continues. The met service link below will reveal all.


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

Forecast by Ronan Maguire

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