OhauBulletin d'avalanche

Valable pour
vendredi 31 juillet 2026
Publié: 29 juil., 05:16
Danger maximum
2 · LIMITÉ
OhauNZ-ohau
2

Traduction en cours — affiché en langue source

Fresh snow and strong NW winds are forecast for Thursday and Friday. Expect increasing avalanche danger as fresh wind slabs develop and rain-on-snow weakens the existing snowpack. Choose conservative terrain, avoid steep wind-loaded slopes and areas affected by rain, and reassess conditions carefully as the storm progresses.

Danger par altitude

Alpin2Limité
Limite forestière2Limité
En dessous de la limite forestière1Faible

Problèmes d'avalanches actifs

Plaque à vent
Plaque à vent
Limite forestière et au-dessus
Taille2/5
FréquenceProbable
StabilitéMauvaise
Neige mouillée
Neige mouillée
Limite forestière
Taille1/5
FréquenceProbable
StabilitéMauvaise

27 July - Two loose wet avalanches were observed on north-facing slopes. 26 July - Several size 1 wind slabs were observed or triggered by ohau ski patrol team below ridge crest on E to SE aspects. Rain, heavy at times about the Divide, spreading elsewhere from afternoon. Snow lowering to 1200 metres.wind at topNorthwesterly 70 km/h easing to 40 km/h early evening.freezing levelLowering to 1500 metres evening. Firm snow conditions are present on west-facing slopes near ridgelines and at lower elevations where a rain crust exists. These hard surfaces may present a sliding hazard, particularly on steep terrain and may be cunningly hidden under new snow.

Approximately 15–20 cm of new snow fell between 23–24 July, accompanied by strong northwesterly winds that later shifted southwest. Since the storm, consecutive cold, clear nights have promoted near-surface faceting, preserving dry, and low-density snow. Strong northwesterly and southwesterly winds formed wind slabs on East to South aspects during the storm cycle. These slabs have continued to stabilise and have shown little to no reactivity in recent stability assessments.

Source: New Zealand Avalanche Advisory · Voir le bulletin d'origine

Original (EN)

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