{"type": "Feature", "geometry": null, "properties": {"lang": "fr", "regions": [{"name": "Aravis", "regionID": "FR-02"}], "weather": {"wind": [{"speeds": [30, 30, 15, 15], "altitude": "2000m"}], "comment": "Aper\u00e7u m\u00e9t\u00e9o pour le vendredi 23 janvier\nnuit matin apr\u00e8s-midi soir\ndes\nLe ciel est couvert en journ\u00e9e. En soir\u00e9e, faibles chutes de neige (3-7 cm). Vent assez fort sur les\nsommets", "isotherm0": [1700, 1800, 1700, 1000]}, "tendency": [{"comment": "

km/h 25 km/h 25 km/h

Tendance du samedi 24 janvier

Indice de risque limit\u00e9

ossibles petites coul\u00e9es de neige fra\u00eeches

ndant/apr\u00e8s les chutes de la nuit. La

uche fragile persistante reste sollicitable.

", "dangerRating": "moderate", "tendencyType": "steady"}], "validTime": {"endTime": "2026-01-23T23:59:59+00:00", "startTime": "2026-01-22T15:00:00Z"}, "bulletinID": "FR-02-2026-01-23-20260122145559", "customData": {"MF": {"date": "2026-01-23", "massif": "ARAVIS", "redigeAt": "2026-01-22T16:00:00", "triggered": "

* Au-dessus de 2000 m

pr\u00e9sence d'une couche fragile persistante dans d'assez nombreuses pentes des versants Nord/Est/Ouest. Elle peut \u00eatre d\u00e9clench\u00e9e \u00e0 distance et parfois

dans les pentes d\u00e9j\u00e0 ski\u00e9es. Risque de cassure \u00e9paisse et longue. Taille 2, (moyenne) plus rarement 3 (grande). Possibilit\u00e9 d'avalanches en cascade.

", "historical": {"wind": {"2000m": [30, 20, 20, 35, 25, 25, 25, 30, 40, 40, 10, 20, 10, 5, 10, 20, 10, 20, 10, 10, 10, 10, 15, 20, 10, 15, 10, 15], "2500m": [55, 40, 40, 50, 45, 40, 40, 50, 60, 50, 25, 30, 25, 20, 25, 30, 20, 30, 20, 20, 20, 20, 30, 35, 25, 25, 20, 20]}, "snowLine": {"north": [900, null, null, 900, null, 900, null], "south": [null, 1000, null, 1000, null, 1000, null]}, "freshSnow": [0, 0, 0, 0, 0, 2, 0]}, "source_file": "BRA.ARAVIS.2026-01-22.pdf", "spontaneous": "

moyenne).

", "typicalAvalancheSituations": ["couche fragile persistante", "couche fragile"]}}, "highlights": "INSTABILIT\u00c9S ENFOUIES, POUVANT DONNER UNE GRANDE AVALANCHE.", "dangerRatings": [{"valid": true, "elevation": {"lowerBound": null, "upperBound": null}, "mainValue": "moderate"}], "publicationTime": "2026-01-22T14:55:59Z", "avalancheActivity": {"comment": "

moyenne).

dans les pentes d\u00e9j\u00e0 ski\u00e9es. Risque de cassure \u00e9paisse et longue. Taille 2, (moyenne) plus rarement 3 (grande). Possibilit\u00e9 d'avalanches en cascade.

", "highlights": "INSTABILIT\u00c9S ENFOUIES, POUVANT DONNER UNE GRANDE AVALANCHE."}, "avalancheProblems": [{"order": 1, "aspects": ["N", "W"], "satLabel": "couche fragile persistante", "elevation": {"lowerBound": 2000}, "frequency": "many", "problemType": "persistent_weak_layers", "avalancheSize": "2"}, {"order": 2, "aspects": ["N", "W"], "satLabel": "couche fragile", "elevation": {"lowerBound": 2000}, "frequency": "many", "problemType": "no_distinct_avalanche_problem", "avalancheSize": "2"}], "snowpackStructure": {"comment": "

Situation avalancheuse typique

couche fragile persistante

D\u00e9clenchements provoqu\u00e9s :

dans les pentes d\u00e9j\u00e0 ski\u00e9es. Risque de cassure \u00e9paisse et longue. Taille 2, (moyenne) plus rarement 3 (grande). Possibilit\u00e9 d'avalanches en cascade.

D\u00e9parts spontan\u00e9s :

moyenne).

"}}}