{"type": "Feature", "geometry": null, "properties": {"lang": "fr", "regions": [{"name": "Maurienne", "regionID": "FR-09"}], "weather": {"wind": [{"speeds": [35, 50, 50, 40], "altitude": "2000m"}, {"speeds": [65, 75, 75, 70], "altitude": "3000m"}], "comment": "Aper\u00e7u m\u00e9t\u00e9o pour le jeudi 12 f\u00e9vrier\nqui nuit matin apr\u00e8s-midi soir\nm, en\nge \u00e0 Episode temp\u00e9tueux remarquable : neige forte continue et vent fort.\nbois\nPluie-Neige 1 500 m 1 200 m 1 200 m 1 100 m", "isotherm0": [2100, 1600, 1700, 1500]}, "tendency": [{"comment": "<p>Tendance du vendredi 13 f\u00e9vrier</p><p>Indice de risque fort</p><p>sque accidentel demeurant maximal :</p><p>paisse couche de neige r\u00e9cente n&#x27;est pas</p><p>abilis\u00e9. Les d\u00e9parts spontan\u00e9s deviennent</p><p>us rares. Grandes avalanches possibles,</p><p>\u00eame \u00e0 distance.</p>", "dangerRating": "high", "tendencyType": "steady"}], "validTime": {"endTime": "2026-02-12T23:59:59+00:00", "startTime": "2026-02-11T16:00:00Z"}, "bulletinID": "FR-09-2026-02-12-20260211155909", "customData": {"MF": {"date": "2026-02-12", "massif": "MAURIENNE", "redigeAt": "2026-02-11T17:00:00", "triggered": "<p>RISQUE ACCIDENTEL MAXIMAL. Plaques nombreuses et \u00e9paisses, tr\u00e8s r\u00e9actives d\u00e9clenchables localement comme \u00e0 distance. Risque g\u00e9n\u00e9ralis\u00e9</p><p>dans tous les versants, plut\u00f4t au-dessus de 1800m. Grandes avalanches (taille 3) possibles.</p>", "historical": {"wind": {"2000m": [5, 10, 20, 25, 30, 20, 15, 10, 5, 0, 0, 5, 15, 25, 25, 20, 10, 10, 10, 10, 10, 15, 25, 35, 40, 40, 30, 30], "3000m": [20, 20, 30, 35, 40, 35, 25, 20, 15, 10, 10, 15, 20, 30, 30, 25, 15, 15, 15, 15, 20, 30, 40, 50, 55, 55, 45, 45]}, "snowLine": {"north": [900, null, null, 900, null, 900, null], "south": [null, 900, null, 900, null, 900, null]}, "freshSnow": [15, 2, 0, 0, 1, 15, 0]}, "source_file": "BRA.MAURIENNE.2026-02-11.pdf", "spontaneous": "<p>avalanches de plaque possibles en tous versants. GRANDES AVALANCHES (TAILLE 3). D\u00e9clenchements possibles autant dans la nuit de mercredi \u00e0 jeudi</p><p>que JEUDI TOUTE LA JOURNEE.</p>", "typicalAvalancheSituations": ["neige fra\u00eeche", "couche fragile persistante", "couche fragile"]}}, "highlights": "FORTE ACTIVIT\u00c9 AVALANCHEUSE NATURELLE ET RISQUE ACCIDENTEL MAXIMAL.", "dangerRatings": [{"valid": true, "elevation": {"lowerBound": null, "upperBound": null}, "mainValue": "high"}], "publicationTime": "2026-02-11T15:59:09Z", "avalancheActivity": {"comment": "<p>avalanches de plaque possibles en tous versants. GRANDES AVALANCHES (TAILLE 3). D\u00e9clenchements possibles autant dans la nuit de mercredi \u00e0 jeudi</p><p>que JEUDI TOUTE LA JOURNEE.</p><p>RISQUE ACCIDENTEL MAXIMAL. Plaques nombreuses et \u00e9paisses, tr\u00e8s r\u00e9actives d\u00e9clenchables localement comme \u00e0 distance. Risque g\u00e9n\u00e9ralis\u00e9</p><p>dans tous les versants, plut\u00f4t au-dessus de 1800m. Grandes avalanches (taille 3) possibles.</p>", "highlights": "FORTE ACTIVIT\u00c9 AVALANCHEUSE NATURELLE ET RISQUE ACCIDENTEL MAXIMAL."}, "avalancheProblems": [{"order": 1, "aspects": [], "satLabel": "neige fra\u00eeche", "elevation": {"lowerBound": 1800}, "frequency": "many", "problemType": "new_snow", "avalancheSize": "3"}, {"order": 2, "aspects": [], "satLabel": "couche fragile persistante", "elevation": {"lowerBound": 1800}, "frequency": "many", "problemType": "persistent_weak_layers", "avalancheSize": "3"}, {"order": 3, "aspects": [], "satLabel": "couche fragile", "elevation": {"lowerBound": 1800}, "frequency": "many", "problemType": "no_distinct_avalanche_problem", "avalancheSize": "3"}], "snowpackStructure": {"comment": "<h2>Situation avalancheuse typique</h2><p>neige fra\u00eeche couche fragile persistante</p><p>RISQUE ACCIDENTEL MAXIMAL. RISQUE NATUREL PR\u00c9OCCUPANT.</p><p>D\u00e9parts spontan\u00e9s : avalanches de plaque possibles en tous versants. GRANDES AVALANCHES (TAILLE 3). D\u00e9clenchements possibles autant dans la nuit de mercredi \u00e0 jeudi</p><p>que JEUDI TOUTE LA JOURNEE.</p><p>D\u00e9clenchements provoqu\u00e9s : RISQUE ACCIDENTEL MAXIMAL. Plaques nombreuses et \u00e9paisses, tr\u00e8s r\u00e9actives d\u00e9clenchables localement comme \u00e0 distance. Risque g\u00e9n\u00e9ralis\u00e9</p><p>dans tous les versants, plut\u00f4t au-dessus de 1800m. Grandes avalanches (taille 3) possibles.</p>"}}}