Belledonne
Considerable Ski resorts in this massif: Chamrousse, Les 7 Laux, Le Collet d'Allevard, Saint-Colomban-des-Villards, Le Barioz Alpin
Source: Météo-France
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Avalanche risk assessment bulletin
(valid outside marked and open slopes)
MASSIF : Belledonne
written on Tuesday, March 31, 2026 at 4 p.m.
Risk assessment for Wednesday, April 01, 2026
WINTER SNOWPACK, WITH NUMEROUS WIND SLABS FORMING LEEWARD AT ALTITUDE
Risk indices: 5 very high - 4 high - 3 considerable - 2 moderate - 1 low -- In black: the most dangerous slopes
Above 2600m considerable risk index evolving to moderate, lower down moderate index.
Spontaneous releases: Some slab failures possible on wind-loaded slopes
Skier-triggered avalanches: Wind slabs more numerous at altitude, generally thin but reactive
Snowpack stability until Wednesday, April 01 evening
Typical avalanche situation:
Wind slab
Triggered releases: New slabs are still forming this Wednesday under the North to North-East wind, especially above 2600m where it is stormy. These instabilities are found even far from the ridges / down to the bottom of slopes and on all aspects, but are generally more numerous on broad South aspects. Slabs often remain narrow and thin, but are very reactive during the wind episode. In the afternoon, the wind weakens and is no longer strong enough to effectively transport snow and form new instabilities. Slabs formed in the morning stabilize progressively. Observables: Transport in progress, accumulation, wind-sculpted snow. Spontaneous releases: Especially above 2600m, on wind-loaded slopes (generally broad South) a few small to medium-sized slab failures remain possible until the end of the wind episode, around midday. In the afternoon, small sluffs are possible under rocks catching the sun, especially at low altitude.
Snow quality
Snow cover quality: Snow cover is good at low altitude, and even very good from 1800 / 2000m but with fairly heterogeneous distribution due to the wind. Little sub-layer below 1700m on full South aspects.
Skiable limits: Around 1000 / 1200m depending on the aspect, with caution on South / under the fir trees
Snow quality Wednesday: Snow of very variable quality across the massif. Alternation of wind-hardened / wind-crusted snow and scoured areas, revealing very hard / crusted old snow. Some lenses of looser snow are sometimes present (often synonymous with slabs). Ridges and slopes exposed to the North wind are often stripped. On South aspects, in some sheltered bowls and at the bottom of slopes / forest sectors, the snow has sometimes remained powdery, with still some good skiing in places.
Weather overview for Wednesday, April 01
| night | morning | afternoon | evening | |
|---|---|---|---|---|
 |  |  |  | |
| Fairly clear skies in the morning, with a few clouds near the summits, under a North-East wind that is still storm-force. In the afternoon, clouds will build up, clinging to the summits, under a weaker wind. | ||||
| Rain-Snow | - | - | - | - |
| Iso 0°C | 1200 m | 1300 m | 1600 m | 1400 m |
| Wind 2000 m | 30 km/h | 30 km/h | 20 km/h | 15 km/h |
| Wind 3000 m | 85 km/h | 80 km/h | 40 km/h | 40 km/h |
Off-piste snow depth
Precipitation at 1800 m
Trend for Thursday, April 02
Moderate risk index
Thursday, moderate risk. The few slabs present at altitude continue their stabilization.
Nivo-meteorological conditions for the last 7 days
Last 7 days
| Wed. 25/03 | Thu. 26/03 | Fri. 27/03 | Sat. 28/03 | Sun. 29/03 | Mon. 30/03 | Tue. 31/03 | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | |
| Weather |  |  |  |  |  | |  |  |  |  | |  |  | |  |  |  |  |  |  |  | |  | | |  |  |  |
| Wind (km/h) at 3000m | 25 | 55 | 80 | 100 | 95 | 90 | 80 | 80 | 90 | 70 | 40 | 35 | 40 | 50 | 50 | 35 | 45 | 35 | 20 | 25 | 40 | 60 | 70 | 85 | 90 | 100 | 100 | 100 |
| Wind (km/h) at 2000m | 10 | 30 | 55 | 70 | 65 | 60 | 65 | 60 | 55 | 50 | 35 | 25 | 30 | 40 | 40 | 25 | 40 | 25 | 15 | 20 | 30 | 50 | 60 | 65 | 60 | 60 | 60 | 60 |
Iso 0°CRain-snow limit | ||||||||||||||||||||||||||||
Altitude (m) 2400 1600 800 0 | ||||||||||||||||||||||||||||
| Wed. 25/03 | Thu. 26/03 | Fri. 27/03 | Sat. 28/03 | Sun. 29/03 | Mon. 30/03 | Tue. 31/03 | ||||||||||||||||||||||
Fresh snow (6h) | ||||||||||||||||||||||||||||
| Avalanche Risk | ||||||||||||||||||||||||||||
Snow cover North and South at 1500m··· 2000m- - - 2500m | ||||||||||||||||||||||||||||
Total snow depth (cm) 400 320 240 160 80 0 | ||||||||||||||||||||||||||||
| Wed. 25/03 | Thu. 26/03 | Fri. 27/03 | Sat. 28/03 | Sun. 29/03 | Mon. 30/03 | Tue. 31/03 | ||||||||||||||||||||||
Snow limit - North face Snow limit - South face | ||||||||||||||||||||||||||||
Snow limit (m) 1800 1500 1200 900 600 300 0 | ||||||||||||||||||||||||||||
| Wed. 25/03 | Thu. 26/03 | Fri. 27/03 | Sat. 28/03 | Sun. 29/03 | Mon. 30/03 | Tue. 31/03 | ||||||||||||||||||||||
| Iso 0°C | RSL | Weather at 1800m |
Wind at 2000m |
Wind at 3000m |
||
|---|---|---|---|---|---|---|
| Wed. 25/03 | 03h | 2 600 | - | | 10 | 25 |
| 09h | 2 400 | - | | 30 | 55 | |
| 15h | 1 400 | 1 100 | | 55 | 80 | |
| 21h | 1 000 | 600 | | 70 | 100 | |
| Thu. 26/03 | 03h | 1 000 | 600 | | 65 | 95 |
| 09h | 800 | 500 | | 60 | 90 | |
| 15h | 1 000 | 500 | | 65 | 80 | |
| 21h | 800 | 400 | | 60 | 80 | |
| Fri. 27/03 | 03h | 800 | 400 | | 55 | 90 |
| 09h | 900 | - | | 50 | 70 | |
| 15h | 1 300 | - | | 35 | 40 | |
| 21h | 1 200 | - | | 25 | 35 | |
| Sat. 28/03 | 03h | 1 200 | - | | 30 | 40 |
| 09h | 1 300 | - | | 40 | 50 | |
| 15h | 1 300 | 1 000 | | 40 | 50 | |
| 21h | 1 100 | 800 | | 25 | 35 | |
| Sun. 29/03 | 03h | 800 | 600 | | 40 | 45 |
| 09h | 1 000 | - | | 25 | 35 | |
| 15h | 1 400 | - | | 15 | 20 | |
| 21h | 1 300 | - | | 20 | 25 | |
| Mon. 30/03 | 03h | 1 200 | - | | 30 | 40 |
| 09h | 1 300 | - | | 50 | 60 | |
| 15h | 1 400 | 1 100 | | 60 | 70 | |
| 21h | 1 300 | 900 | | 65 | 85 | |
| Tue. 31/03 | 03h | 1 400 | 1 000 | | 60 | 90 |
| 09h | 1 200 | - | | 60 | 100 | |
| 15h | 1 500 | - | | 60 | 100 | |
| 21h | 1 200 | - | | 60 | 100 | |
| Avalanche risk |
Snow limit | Snow depth at 2000m |
Fresh snow at 1800m |
|||
| Wed. 25/03 | N : 1 000 m S : 1 400 m | N : 255 cm S : 135 cm | 30 cm | |||
| Thu. 26/03 | N : 1 000 m S : 1 000 m | N : 270 cm S : 150 cm | 20 cm | |||
| Fri. 27/03 | N : 1 000 m S : 1 000 m | N : 290 cm S : 170 cm | 7 cm | |||
| Sat. 28/03 | N : 800 m S : 900 m | N : 290 cm S : 170 cm | 5 cm | |||
| Sun. 29/03 | N : 800 m S : 1 100 m | N : 290 cm S : 165 cm | 2 cm | |||
| Mon. 30/03 | N : 800 m S : 1 100 m | N : 290 cm S : 165 cm | 10 cm | |||
| Tue. 31/03 | N : 800 m S : 1 100 m | N : 290 cm S : 165 cm | ||||
| French | Translation & Notes |
|---|---|
| MANTEAU HIVERNAL, AVEC DE NOMBREUSES PLAQUES SE FORMANT SOUS LE VENT EN ALTITUDE | Winter snowpack, with numerous slabs forming on lee slopes at altitude. Manteau hivernal refers to the seasonal snow cover. Plaques is the general term for slabs. Sous le vent (under the wind) means leeward slopes where snow accumulates. |
| Déclenchements provoqués : De nouvelles plaques se forment encore ce mercredi sous le vent de Nord à Nord-Est, surtout au-dessus de 2600m où il est tempétueux. | Triggered releases: New slabs are still forming this Wednesday on lee slopes from North to North-East winds, especially above 2600m where the wind is storm-force. Déclenchements provoqués means avalanches started by a person or trigger. Tempétueux indicates very high wind speeds (storm-force), which is critical for rapid slab formation. |
| Ces instabilités se retrouvent même loin des crêtes / jusque dans les bas de pentes et en tout versant, mais sont de manière générale plus nombreuses en large Sud. | These instabilities can be found even far from the ridges, extending down to the base of slopes and on all aspects, but are generally more numerous across a wide South sector. Versant means aspect or slope direction. En large Sud means the general South-facing sector (SE to SW). |
| Les plaques restent souvent peu larges et peu épaisses, mais sont très réactives pendant l'épisode de vent. | The slabs often remain narrow and thin, but are highly reactive during the wind episode. Réactives means easily triggered by the weight of a skier. |
| L'après-midi, le vent faiblit et n'est plus suffisamment fort pour transporter efficacement de la neige et former de nouvelles instabilités. | In the afternoon, the wind weakens and is no longer strong enough to effectively transport snow and form new instabilities. Faiblit (weakens) and transporter (transport/drift) are key weather-avalanche links. |
| Les plaques formées en matinée se stabilisent progressivement. | The slabs formed in the morning will gradually stabilize. Progressivement suggests that danger doesn't vanish instantly, but the trend is improving. |
| Observables : Transport en cours, accumulation, neige sculptée par le vent. | Observables: Ongoing transport, accumulations, wind-sculpted snow. These are visual clues skiers should look for on the surface. |
| Départs spontanés : Surtout au-dessus de 2600m, dans les pentes chargées par le vent (généralement en large Sud) quelques ruptures de plaques de tailles petites à moyennes restent possible jusqu'à la fin de l'épisode de vent, autour du milieu de journée. | Natural releases: Especially above 2600m, in slopes loaded by the wind (generally across a wide South sector), a few slab failures of small to medium sizes remain possible until the end of the wind episode around midday. Départs spontanés are natural avalanches. Chargées par le vent means wind-loaded. |
| L'après-midi, de petites coulées sont possibles sous les rochers qui prennent le soleil, surtout à basse altitude. | In the afternoon, small sluffs are possible under rocks that catch the sun, especially at low altitude. Coulées usually refers to small loose-snow slides. This points to a secondary solar-warming problem. |
| Ciel assez dégagé en matinée, avec quelques nuages près des sommets, sous un vent de Nord-Est encore tempétueux. | Fairly clear skies in the morning, with a few clouds near the summits, under a North-East wind that is still storm-force. Dégagé means clear. This confirms good visibility for observing wind transport. |
| L'après-midi les nuages bourgeonnent, accrochant les sommets, sous un vent plus faible. | In the afternoon, clouds will build up, clinging to the summits, under a weaker wind. Bourgeonnent (literally 'budding') is a common French term for convective cloud growth. |
| Qualification de l’enneigement : L'enneigement est bon à basse altitude, et même très bon dès 1800 / 2000m mais avec des répartitions assez hétérogènes à cause du vent. | Snowpack Assessment: The snowpack is good at low altitude, and even very good from 1800-2000m, but with quite heterogeneous distribution due to the wind. Hétérogène refers to the uneven snow depths caused by wind scouring and drifting. |
| Peu de sous couche sous 1700m en plein Sud. | Little base layer below 1700m on full South aspects. Sous couche refers to the existing, older snow layers needed for a skiable base. |
| Limites skiables : Vers 1000 / 1200m selon le versant, avec prudence en Sud / sous les sapins | Skiable limits: Around 1000-1200m depending on the aspect, with caution on South slopes and under fir trees. Sous les sapins (under the fir trees) implies that snow depth might be shallow or thin due to canopy interception. |
| Qualité de la neige mercredi : Neige de qualité très variable sur le massif. | Snow quality Wednesday: Very variable snow quality across the massif. A warning that skiing conditions will change rapidly based on terrain. |
| Alternance de neige durcie / cartonnée par le vent et de zones pelées, faisant ressortir une vieille neige très dure / croûtée. | Alternation of wind-hardened/packed snow and scoured areas, revealing very hard old snow or crust. Cartonnée (cardboard-like) is the classic term for wind-affected snow that is unpleasant to ski. |
| Certaines lentilles de neige plus meubles sont parfois présentes (souvent synonyme de plaques). | Some lenses of softer snow are occasionally present (often synonymous with slabs). Lentilles refers to isolated deposits of soft wind-drifted snow, which are dangerous because they are the 'slabs' mentioned earlier. |
| Les crêtes et pentes exposées au vent de Nord sont souvent dégarnie. | Ridges and slopes exposed to the North wind are often stripped bare. Dégarnie means the snow has been blown away, leaving rocks or old ice. |
| En versants Sud, dans certaines combes abritées et en bas de pentes / secteurs forestiers, la neige est parfois restée poudreuse, avec encore du bon ski par endroits. | On South aspects, in certain sheltered bowls and at the bottom of slopes or forested sectors, the snow has sometimes remained powder, with good skiing still possible in places. Combes are bowl-shaped valley features. Abritées means sheltered from the wind. |
| French Term | English Term | Definition |
|---|---|---|
| Risque 3 - Marqué | 3 - Considerable | Snowpack is moderately to poorly bonded on many steep slopes. Triggering is possible even from low additional loads, particularly on indicated steep slopes. In certain situations, some large natural avalanches are possible. |
| Risque 4 - Fort | 4 - High | Snowpack is poorly bonded on most steep slopes. Triggering is likely even from low additional loads on many steep slopes. In some situations, many medium and sometimes large natural avalanches are expected. |
| Indices de risque | Risk Indices | The European Avalanche Danger Scale: 1 (Low) = generally stable; 2 (Moderate) = possible on steep slopes; 3 (Considerable) = triggering possible even by a single skier; 4 (High) = likely even from low loads, natural releases expected; 5 (Very High) = widespread natural avalanches, extremely dangerous. |
| Plaque à vent | Wind slab | A cohesive layer of wind-deposited snow on the lee side of ridges, crests, or obstacles. Often hard or stiff on the surface but resting on a weaker layer beneath. Can be triggered by a single skier. |
| Départ spontané | Natural release | An avalanche that releases without human intervention, triggered by natural factors such as new snowfall, wind loading, warming, or rain. Indicates the snowpack is unstable enough to fail on its own. |
| Déclenchement provoqué | Skier-triggered release | An avalanche caused by the weight of a person (skier, snowboarder, hiker) or by explosives. The additional load collapses a weak layer, causing the slab above to fracture and slide. |
| Manteau neigeux | Snowpack | The total accumulation of all snow layers on the ground. Its structure — the arrangement and bonding of different layers — determines avalanche risk. |
| Plaque | Slab | A cohesive layer of snow that can fracture and slide as a unit when a weak layer beneath it collapses. Slabs can be soft or hard, and vary from small to enormous. |
| sous le vent | lee slope | The side of a mountain or ridge that is sheltered from the wind; where wind-blown snow accumulates into drifts and slabs. |
| tempétueux | storm-force | Extremely strong winds capable of massive snow transport and rapid slab formation. |
| versant | aspect | The compass direction that a slope faces. |
| neige sculptée | wind-sculpted snow | Snow surfaces eroded by wind into shapes like sastrugi or waves, indicating high wind exposure. |
| coulée | sluff / small slide | A small avalanche of loose snow, often triggered by warming or steep terrain. |
| bourgeonner | build up (clouds) | The vertical growth of clouds, typical of convection or changing weather patterns. |
| cartonnée | wind-packed / wind-crust | Snow that has been compressed by the wind into a stiff, often breakable layer that is difficult to ski. |
| pelée / dégarnie | scoured / stripped bare | Terrain where the snow has been completely or mostly removed by strong winds. |
Bulletin d'estimation du risque d'avalanche
(valable en dehors des pistes balisées et ouvertes)
MASSIF : Belledonne
rédigé le mardi 31 mars 2026 à 16 h.
Estimation des risques pour le mercredi 01 avril 2026
MANTEAU HIVERNAL, AVEC DE NOMBREUSES PLAQUES SE FORMANT SOUS LE VENT EN ALTITUDE
Indices de risque : 5 très fort - 4 fort - 3 marqué - 2 limité - 1 faible -- En noir : les pentes les plus dangereuses
Au-dessus de 2600m indice de risque marqué évoluant en limité, plus bas indice limité.
Départs spontanés : Quelques ruptures de plaques possibles dans les pentes chargées par le vent
Déclenchements skieurs : Plaques à vent plus nombreuses en altitude, généralement peu épaisses mais réactives
Stabilité du manteau neigeux jusqu'au mercredi 01 avril au soir
Situation avalancheuse typique :Neige ventée
Déclenchements provoqués : De nouvelles plaques se forment encore ce mercredi sous le vent de Nord à Nord-Est, surtout au-dessus de 2600m où il est tempétueux. Ces instabilités se retrouvent même loin des crêtes / jusque dans les bas de pentes et en tout versant, mais sont de manière générale plus nombreuses en large Sud. Les plaques restent souvent peu larges et peu épaisses, mais sont très réactives pendant l'épisode de vent. L'après-midi, le vent faiblit et n'est plus suffisamment fort pour transporter efficacement de la neige et former de nouvelles instabilités. Les plaques formées en matinée se stabilisent progressivement. Observables : Transport en cours, accumulation, neige sculptée par le vent. Départs spontanés : Surtout au-dessus de 2600m, dans les pentes chargées par le vent (généralement en large Sud) quelques ruptures de plaques de tailles petites à moyennes restent possible jusqu'à la fin de l'épisode de vent, autour du milieu de journée. L'après-midi, de petites coulées sont possibles sous les rochers qui prennent le soleil, surtout à basse altitude.
Qualité de la neige
Qualification de l’enneigement : L'enneigement est bon à basse altitude, et même très bon dés 1800 / 2000m mais avec des répartitions assez hétérogènes à cause du vent. Peu de sous couche sous 1700m en plein Sud.
Limites skiables : Vers 1000 / 1200m selon le versant, avec prudence en Sud / sous les sapins
Qualité de la neige mercredi : Neige de qualité très variable sur le massif. Alternance de neige durcie / cartonnée par le vent et de zones pelées, faisant ressortir une vieille neige très dure / croûtée. Certaines lentilles de neige plus meubles sont parfois présentes (souvent synonyme de plaques). Les crêtes et pentes exposées au vent de Nord sont souvent dégarnie. En versants Sud, dans certaines combes abritées et en bas de pentes / secteurs forestiers, la neige est parfois restée poudreuse, avec encore du bon ski par endroits.
Aperçu météo pour le mercredi 01 avril
| nuit | matin | après-midi | soir | |
|---|---|---|---|---|
| | | | |
| Ciel assez dégagé en matinée, avec quelques nuages près des sommets, sous un vent de Nord-Est encore tempétueux. L'après-midi les nuages bourgeonnent, accrochant les sommets, sous un vent plus faible. | ||||
| Pluie-Neige | - | - | - | - |
| Iso 0°C | 1200 m | 1300 m | 1600 m | 1400 m |
| Vent 2000 m | 30 km/h | 30 km/h | 20 km/h | 15 km/h |
| Vent 3000 m | 85 km/h | 80 km/h | 40 km/h | 40 km/h |
Epaisseur de neige hors-piste
Précipitations à 1800 m
Tendance du jeudi 02 avril
Indice de risque limité
Jeudi, risque limité. Les quelques plaques présentes en altitude poursuivent leur stabilisation.
Conditions nivo-météo des 7 derniers jours
Les 7 derniers jours
| mer. 25/03 | jeu. 26/03 | ven. 27/03 | sam. 28/03 | dim. 29/03 | lun. 30/03 | mar. 31/03 | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | 03h | 09h | 15h | 21h | |
| Météo | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Vent (km/h) à 3000m | 25 | 55 | 80 | 100 | 95 | 90 | 80 | 80 | 90 | 70 | 40 | 35 | 40 | 50 | 50 | 35 | 45 | 35 | 20 | 25 | 40 | 60 | 70 | 85 | 90 | 100 | 100 | 100 |
| Vent (km/h) à 2000m | 10 | 30 | 55 | 70 | 65 | 60 | 65 | 60 | 55 | 50 | 35 | 25 | 30 | 40 | 40 | 25 | 40 | 25 | 15 | 20 | 30 | 50 | 60 | 65 | 60 | 60 | 60 | 60 |
Iso 0°CLimite pluie-neige | ||||||||||||||||||||||||||||
Altitude en m 2400 1600 800 0 | ||||||||||||||||||||||||||||
| mer. 25/03 | jeu. 26/03 | ven. 27/03 | sam. 28/03 | dim. 29/03 | lun. 30/03 | mar. 31/03 | ||||||||||||||||||||||
Neige fraîche (6h) | ||||||||||||||||||||||||||||
| Risque d'Avalanche | ||||||||||||||||||||||||||||
Enneigement versant Nord et Sud à 1500m··· 2000m- - - 2500m | ||||||||||||||||||||||||||||
Hauteur totale de neige (cm) 400 320 240 160 80 0 | ||||||||||||||||||||||||||||
| mer. 25/03 | jeu. 26/03 | ven. 27/03 | sam. 28/03 | dim. 29/03 | lun. 30/03 | mar. 31/03 | ||||||||||||||||||||||
Limite de l'enneigement - Versant Nord Limite de l'enneigement - Versant Sud | ||||||||||||||||||||||||||||
Limite d'enneigement (m) 1800 1500 1200 900 600 300 0 | ||||||||||||||||||||||||||||
| mer. 25/03 | jeu. 26/03 | ven. 27/03 | sam. 28/03 | dim. 29/03 | lun. 30/03 | mar. 31/03 | ||||||||||||||||||||||
| Iso 0°C | LPN | Météo à 1800m |
Vent à 2000m |
Vent à 3000m |
||
|---|---|---|---|---|---|---|
| mer. 25/03 | 03h | 2 600 | - | | 10 | 25 |
| 09h | 2 400 | - | | 30 | 55 | |
| 15h | 1 400 | 1 100 | | 55 | 80 | |
| 21h | 1 000 | 600 | | 70 | 100 | |
| jeu. 26/03 | 03h | 1 000 | 600 | | 65 | 95 |
| 09h | 800 | 500 | | 60 | 90 | |
| 15h | 1 000 | 500 | | 65 | 80 | |
| 21h | 800 | 400 | | 60 | 80 | |
| ven. 27/03 | 03h | 800 | 400 | | 55 | 90 |
| 09h | 900 | - | | 50 | 70 | |
| 15h | 1 300 | - | | 35 | 40 | |
| 21h | 1 200 | - | | 25 | 35 | |
| sam. 28/03 | 03h | 1 200 | - | | 30 | 40 |
| 09h | 1 300 | - | | 40 | 50 | |
| 15h | 1 300 | 1 000 | | 40 | 50 | |
| 21h | 1 100 | 800 | | 25 | 35 | |
| dim. 29/03 | 03h | 800 | 600 | | 40 | 45 |
| 09h | 1 000 | - | | 25 | 35 | |
| 15h | 1 400 | - | | 15 | 20 | |
| 21h | 1 300 | - | | 20 | 25 | |
| lun. 30/03 | 03h | 1 200 | - | | 30 | 40 |
| 09h | 1 300 | - | | 50 | 60 | |
| 15h | 1 400 | 1 100 | | 60 | 70 | |
| 21h | 1 300 | 900 | | 65 | 85 | |
| mar. 31/03 | 03h | 1 400 | 1 000 | | 60 | 90 |
| 09h | 1 200 | - | | 60 | 100 | |
| 15h | 1 500 | - | | 60 | 100 | |
| 21h | 1 200 | - | | 60 | 100 | |
| Risque avalanche |
Limite enneigement | Enneigement à 2000m |
Neige fraîche à 1800m |
|||
| mer. 25/03 | N : 1 000 m S : 1 400 m | N : 255 cm S : 135 cm | 30 cm | |||
| jeu. 26/03 | N : 1 000 m S : 1 000 m | N : 270 cm S : 150 cm | 20 cm | |||
| ven. 27/03 | N : 1 000 m S : 1 000 m | N : 290 cm S : 170 cm | 7 cm | |||
| sam. 28/03 | N : 800 m S : 900 m | N : 290 cm S : 170 cm | 5 cm | |||
| dim. 29/03 | N : 800 m S : 1 100 m | N : 290 cm S : 165 cm | 2 cm | |||
| lun. 30/03 | N : 800 m S : 1 100 m | N : 290 cm S : 165 cm | 10 cm | |||
| mar. 31/03 | N : 800 m S : 1 100 m | N : 290 cm S : 165 cm | ||||