New Zealand Mountan Safety Council

Tongariro

Be kept in the loop:
Email Sign up
YouTube
Join
MetService Getting the goods on the weather forecast is never easy. Get your mountain weather forecast right now!
Link ArrowMet Service
Issued at 25/08/2016 4:16pm. Valid till 26/08/2016 6pm

Tongariro

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:
Current weather conditions and forecast has encouraged us to elevate the hazard rating to CONSIDERABLE for wind slab. Snow showers are forecasted tonight with sever gale winds which will promote the formation of Wind Slab rapidly above 2200m. Wind slab will form on South East, South aspects and later East aspects. Strong possibility an avalanche could be triggered by the weight of a single person. Good chance wind slab may reach 50cm in depth in and around sheltered features above 2000m. Even moderate to light snow fall coupled with wind can produce a slab very fast.

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:
Loose wet instability within the new snow below 2100m becoming present higher up. Incoming precipitation will fall as rain up to 2300m elevation for a time. This will have a direct effect on any pre-existing weaknesses and promote loss of surface cohesion. Avoid steep unsupported slopes till freezing level falls and locks up snowpack.

Recent Avalanche Activity

Recent Avalanche Activity
Reports of natural activity around the Tukino and Turoa ski areas. These events were up to 1.5 wind slabs. Also reports of wet loose size 1 activity in the North West region of forecast area.

Current Snowpack Conditions

Current Snowpack Conditions
During the early hours of this morning misty warm conditions capped and stabilized last nights wind slabs below 2400m. Early morning testing proved that these slabs were non-reactive to the weight of a person ski cutting and only active to explosives (size-1). Lower elevations snowpack has become rain affected and losing cohesive structure.

Mountain Weather

Mountain Weather
A complex low pressure system will move over the North Island during the next couple of days. This will result in severe Gale North Westerly winds and snow above 2000m at first. North Westerly winds will tend Westerly later tomorrow. Freezing level risers to 2800m before slowly falling over the next 36hrs to 1800m.


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

Sliding Danger

Slide For Life

Very icy conditions currently exist in the region on exposed ridgelines and windward slopes. Recommend you carry an ICE AXE with CRAMPONS and know how to use them. A fall in the wrong location could easily result in a 'Slide for Life' situation. Adverse weather conditions coupled with very poor visibility will make it very difficult to assess any hazard and safely navigate.

Forecast by Richard Te Ua

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