Tendance du jeudi 04 d\u00e9cembre
Indice de risque limit\u00e9
sque en hausse. Instabilit\u00e9s faciles \u00e0
clencher en versants ombrag\u00e9s d'altitude.
", "valid_from": null, "valid_until": null, "tendency_type": "increasing"}], "tendency_lead": null, "weather_review": null, "weather_forecast": null, "avalanche_activity": {"comment": "au-dessus de 2000 m environ, \u00e9ventuelles petites avalanches en pente raide, rarement moyenne en zone d\u2019accumulation, au fil de chutes et avec le
transport par le vent.
au-dessus de 2000 m environ, plaques g\u00e9n\u00e9ralement superficielles en formation. Ces instabilit\u00e9s principalement pr\u00e9sentes en versants ombrag\u00e9s
(ouest, nord, est) sont faciles \u00e0 d\u00e9clencher. G\u00e9n\u00e9ralement petite avalanche mais pouvant en pente raide d\u00e9stabiliser un skieur / randonneur. Plus rarement de taille moyenne
en zone d\u2019accumulation. En effet les faibles chutes de neige vent\u00e9e pr\u00e9vues peuvent se d\u00e9poser sur de la neige sans coh\u00e9sion en versants ombrag\u00e9s, faisant d\u00e9sormais office
de couche fragile persistante.
", "highlights": "NOUVELLES PLAQUES SUPERFICIELLES EN FORMATION"}, "snowpack_structure": "neige vent\u00e9e couche fragile persistante
D\u00e9clenchements provoqu\u00e9s : au-dessus de 2000 m environ, plaques g\u00e9n\u00e9ralement superficielles en formation. Ces instabilit\u00e9s principalement pr\u00e9sentes en versants ombrag\u00e9s
(ouest, nord, est) sont faciles \u00e0 d\u00e9clencher. G\u00e9n\u00e9ralement petite avalanche mais pouvant en pente raide d\u00e9stabiliser un skieur / randonneur. Plus rarement de taille moyenne
en zone d\u2019accumulation. En effet les faibles chutes de neige vent\u00e9e pr\u00e9vues peuvent se d\u00e9poser sur de la neige sans coh\u00e9sion en versants ombrag\u00e9s, faisant d\u00e9sormais office
de couche fragile persistante.
D\u00e9parts spontan\u00e9s : au-dessus de 2000 m environ, \u00e9ventuelles petites avalanches en pente raide, rarement moyenne en zone d\u2019accumulation, au fil de chutes et avec le
transport par le vent.
"}, "danger": {"key": "moderate", "number": "2", "ratings": [{"key": "moderate", "period": "all_day", "elevation": {"lower": 2000, "upper": null, "treeline": false, "treeline_side": null}, "subdivision": null}, {"key": "low", "period": "all_day", "elevation": {"lower": null, "upper": 2000, "treeline": false, "treeline_side": null}, "subdivision": null}], "subdivision": null}, "source": "METEOFRANCE", "traits": [{"prose": null, "title": "Dry avalanches", "band_id": null, "category": "dry", "problems": [{"extras": {}, "aspects": ["N", "W"], "elevation": {"lower": 2000, "upper": null, "treeline": false, "treeline_side": null}, "frequency": null, "time_period": "", "comment_html": "", "problem_type": "wind_slab", "avalanche_size": null, "avalanche_type": null, "core_zone_text": null, "snowpack_stability": null, "danger_rating_value": "moderate"}, {"extras": {}, "aspects": ["N", "W"], "elevation": {"lower": 2000, "upper": null, "treeline": false, "treeline_side": null}, "frequency": null, "time_period": "", "comment_html": "", "problem_type": "persistent_weak_layers", "avalanche_size": null, "avalanche_type": null, "core_zone_text": null, "snowpack_stability": null, "danger_rating_value": "moderate"}, {"extras": {}, "aspects": ["N", "W"], "elevation": {"lower": 2000, "upper": null, "treeline": false, "treeline_side": null}, "frequency": null, "time_period": "", "comment_html": "", "problem_type": "no_distinct_avalanche_problem", "avalanche_size": null, "avalanche_type": null, "core_zone_text": null, "snowpack_stability": null, "danger_rating_value": "moderate"}], "elevation": null, "geography": {"source": "problems"}, "time_period": "all_day", "danger_level": 2}], "version": 8, "metadata": {"lang": "fr", "valid_from": "2025-12-02T15:00:00+00:00", "next_update": null, "unscheduled": false, "valid_until": "2025-12-03T23:59:59+00:00", "publication_time": "2025-12-02T14:53:04+00:00"}, "danger_patterns": []}