The snowpack has seen a significant amount of new snow + wind.
The avalanche hazard is considerable today and expert terrain/snowpack analysis is essential for backcountry travel.
Use the ski resorts in the morning then ease into simple terrain if exiting the boundary.
Expect significant loading around terrain features on all aspects. This is due the changing wind direction and high speeds.
Treat all areas of loading with caution and avoid slopes with a poor run out.
Bonding will be slow with the cold temperatures today. Allow time for the snowpack to settle.
Minimal observations from within the region with most operators closed with yesterdays high winds.
20-30cm of new snow from this storm in the region. Depths tapering to 10-15 at low elevations/the Sub Alpine.
There has been extensive wind effect from the SW and S in the past 48 hours. Loading on lee slopes up to 150cm deep. Expect loading around significant terrain features on all aspects in the Alpine and High Alpine. This is due to the high wind speeds and changes in direction.
Treat ridges with caution as cornices are likely to have formed lee to the Sth.
Exposed slopes will be stripped to a slick old surface. The snowpack is still thin and hidden hazards are widespread.
Snow showers clearing to fine. Cold temps with moderate to strong S winds easing. FAFL 400m rising to 1000.
Slopes exposed to the wind will be stripped back to a slick old surface. These should be easily avoided.
Moderate
New Zealand Avalanche Advisory (NZ Mountain Safety Council)
