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 28/08/2016 4:52pm. Valid till 29/08/2016 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
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:
Backcountry hazard advisory is moderate for Wind slab that exists on North East, East, South East and Southerly aspects. These Wind slabs can be found up to 50cm deep in sheltered terrain and have proved stubborn to trigger with the weight of a skier. Heavy loads could still initiate an avalanche in steep and unsupported terrain. With the forecasted fine weather expect these wind slabs to continue to consolidate and gain strength becoming more stubborn by the day.

Secondary Avalanche Danger

Dangerous Aspects
high
Danger Rose
1
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:
Chance of solar input on sunny aspects later in the day. Watch for roller balling and loss of surface cohesion.

Recent Avalanche Activity

Recent Avalanche Activity
Explosive work at the Ski fields produced avalanches up to size 1.5, mainly in the Northern part of the region. No Natural avalanche activity reported over the past 24hrs.

Current Snowpack Conditions

Current Snowpack Conditions
Another hit of sporadic snowfall with moderate to strong Westerly and South Westerly winds produced a stiff wind slab up to 50cm deep on lee slopes above 1600m on the North Western area of forecast region. This wind slab was reactive to explosive testing producing results up to size 1.5 however unreactive to the weight of a skier. Wind slab exists in the South West area of the Tongariro region however this proved unreactive to large loads.

Mountain Weather

Mountain Weather
A large high pressure system looks to dominate the country for the start of the week. This will initiate a melt freeze cycle later in the week. South Westerly winds tomorrow becoming fresh with intermittent snow showers. Freezing level around 2200m.


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

Sliding Danger

Slide For Life
Very icy conditions currently exist on windward slopes and where the rain saturated snowpack has refrozen with dropping freezing level. Crampons and Ice axe are a must at the moment.

Forecast by Richard Te Ua

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