Two ThumbsЛавинный прогноз

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четверг, 13 августа 2026 г.
Опубликован: 12 авг., 07:07
Максимальный уровень опасности
2 · УМЕРЕННЫЙ
Two ThumbsNZ-two-thumbs
2

Перевод выполняется — показан язык оригинала

The storm is here! Northerly strong wind, rain and snow above 1700-2000m until Thursday (13 Aug) afternoon. Wait until the precipitation subsides and travel away from steep and lee terrain. Consider loose wet avalanches on South-east aspects!

Опасность по высоте

Альпийская зона2Умеренный
Граница леса2Умеренный
Ниже границы леса1Низкий

Активные лавинные проблемы

Мокрый снег
Мокрый снег
Уровень леса и выше
Размер2/5
ЧастотаВероятно
СтабильностьПлохая
Ветровая доска
Ветровая доска
Альпийская зона
Размер2/5
ЧастотаВозможно
СтабильностьУдовлетворительная

No avalanche observations from the Two Thumbs Range.  In Aoraki / Mt Cook National Park closer to the Main Divide loose wet activity was observed on Monday 10 Aug If you see any activity on the Two Thumb Range, please make a public observation. It helps us to produce accurate forecasts. Rain about the Divide, easing in the morning. Isolated showers elsewhere, clearing in the afternoon as fine spells increase.WIND AT 1000m: Northerly 60 km/h, easing to northwesterly 30 km/h before dawn.WIND AT 2000m: Northwesterly gale 75 km/h, easing to westerly 30 km/h in the afternoon.FREEZING LEVEL: 2400m, lowering to 1900m about the Mackenzie Basin in the afternoon.The meteoblue AI supported forecast model has produced some of the better forecast for our region recently. We may get an ok day in the Southern Two Thumbs, with the North to Northwest winds easing back in the late morning and about 5-10cm of wet new snow above approximately 1700m.The further North, the longer the weather will stick around and the more snow will fall above the 1700m elevation. Maybe 10-15cm at Stag Saddle and potentially over 30cm from Captains Peak North.  The warm weather  and the rain that appears to have started from evening of 12 Aug have softened all surfaces. In the South in particular, slick snow and icy patches exposed by the south-west gales are still about. A slip or fall on steep terrain could have serious consequences, particularly above bluffs, in gullies or where runouts are confined. Take extra care when travelling on hard snow, assess runout zones before committing to steep slopes, and carry equipment appropriate for firm alpine conditions, such as crampons and an ice axe. Conservative route selection remains the most effective way to manage these hazards.

Southern end of range — south of Stag Saddle Ridge-lines and slopes exposed to the south-west, have been heavily scoured, and mostly stripped back to old crusts, or even bare rocks and scree on upper ridges. Firm crusts and areas of wind-affected snow are widespread, with the most scoured and variable conditions found in the high alpine, and at the southern end of the range.  Sheltered terrain above 1600m continues to hold soft snow. Sunny slopes have been softening from late morning. Snow depth varies from 40-70cm, with deeper accumulations of 100-120cm in sheltered areas. Small facets (weak sugary crystals) have begun developing around crusts in the upper snowpack and between layers of old wind slab, particularly on shallow shaded slopes. At present, these are not posing a significant problem. Below the crusts, the lower snowpack is well settled. Northern end of range — north of Stag Saddle The snowpack north of Stag Saddle is not well understood, with no direct observations.  We expect that deep snow will have accumulated in sheltered areas above 1800m.

Источник: New Zealand Avalanche Advisory · Открыть оригинал

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