Thabor
Moderate Ski resorts in this massif: Serre Chevalier (Briançon/Chantemerle/Villeneuve/Le Monêtier), Montgenèvre, Névache
Source: Météo-France
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Avalanche risk assessment bulletin
(valid outside marked and open runs)
MASSIF : Thabor
written on Tuesday 31 March 2026 at 4 p.m.
Risk assessment for Wednesday 01 April 2026
SOME SLABS AT ALTITUDE IN RECENT WIND-DRIFTED SNOW
Risk indices: 5 very high - 4 high - 3 considerable - 2 moderate - 1 low -- In black: the most dangerous slopes
Above 2000m moderate risk index, lower down low index.
Spontaneous releases: a wind-loaded slab may release spontaneously. Limited size.
Skier-triggered releases: instabilities in wind-drifted snow, more numerous towards Savoie.
Snowpack stability until Wednesday 01 April evening
Typical avalanche situation:
Wind slab
Triggered releases: hard slabs in place in recent wind-drifted snow and maintained by the moderate Lombarde wind. Present above approximately 2000 m in a wide northern sector (west, north and northeast), these slabs are nevertheless more numerous and sensitive towards Savoie where the amounts of new snow are slightly higher. Easily triggered by a skier, these instabilities generate small to medium-sized avalanches (size 1 to 2). Spontaneous releases: rare failures due to wind loading (e.g. cornice failure). Small to medium avalanche (size 1 to 2).
Snow quality
Snow cover is close to normal for the end of March.
Snow depths observed around 2500 m: 173 cm in the Chardonnet valley, 125 cm at the Rochilles nivose, 84 cm at the Galibier Nivose (heavily wind-blown sectors).
Skiable snow limit: from 1400 m on favorable north-facing slopes (grassy terrain, forest tracks), 1800/1900 m on south-facing slopes that are not too steep.
Surface snow condition: 3/5 cm of new snow near Savoie, heavily hardened and worked by the strong wind or still locally light in well-sheltered sectors. On the ridges, thick cornices sit alongside wind-scoured areas. On southern slopes, crusted snow below 2500 m.
Weather overview for Wednesday 01 April
| night | morning | afternoon | evening | |
|---|---|---|---|---|
 |  |  |  | |
| Dry and still windy weather. 0°C at 2000 m and -8°C at 3000 m. | ||||
| Rain-Snow | - | - | - | - |
| Iso 0°C | 1400 m | 1600 m | 2000 m | 1500 m |
| Wind 2000 m | 25 km/h | 25 km/h | 35 km/h | 30 km/h |
| Wind 3000 m | 40 km/h | 40 km/h | 50 km/h | 45 km/h |
Off-piste snow depth
Precipitation at 1800 m
Trend for Thursday 02 April
Moderate risk index
Maintenance of a moderate risk with residual slabs at altitude. Resumption of wetting on southern slopes.
Snow-weather 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 | 30 | 50 | 70 | 80 | 90 | 90 | 80 | 70 | 65 | 50 | 30 | 30 | 30 | 40 | 50 | 60 | 45 | 20 | 30 | 30 | 30 | 50 | 80 | 90 | 80 | 60 | 50 | 45 |
| Wind (km/h) at 2000m | 15 | 25 | 70 | 70 | 60 | 55 | 50 | 45 | 40 | 35 | 15 | 15 | 20 | 30 | 40 | 35 | 35 | 20 | 30 | 25 | 30 | 40 | 60 | 80 | 70 | 50 | 40 | 35 |
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) 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) 2400 2100 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 | 2 500 | - | | 15 | 30 |
| 09h | 2 400 | - | | 25 | 50 | |
| 15h | 2 000 | 1 700 | | 70 | 70 | |
| 21h | 1 000 | 500 | | 70 | 80 | |
| Thu. 26/03 | 03h | 700 | 300 | | 60 | 90 |
| 09h | 700 | 300 | | 55 | 90 | |
| 15h | 900 | 500 | | 50 | 80 | |
| 21h | 700 | 400 | | 45 | 70 | |
| Fri. 27/03 | 03h | 800 | 400 | | 40 | 65 |
| 09h | 900 | - | | 35 | 50 | |
| 15h | 1 600 | - | | 15 | 30 | |
| 21h | 1 800 | - | | 15 | 30 | |
| Sat. 28/03 | 03h | 1 900 | - | | 20 | 30 |
| 09h | 2 000 | - | | 30 | 40 | |
| 15h | 2 000 | - | | 40 | 50 | |
| 21h | 1 500 | - | | 35 | 60 | |
| Sun. 29/03 | 03h | 1 300 | 900 | | 35 | 45 |
| 09h | 1 300 | - | | 20 | 20 | |
| 15h | 2 000 | - | | 30 | 30 | |
| 21h | 2 000 | - | | 25 | 30 | |
| Mon. 30/03 | 03h | 2 000 | - | | 30 | 30 |
| 09h | 2 100 | - | | 40 | 50 | |
| 15h | 2 300 | - | | 60 | 80 | |
| 21h | 1 700 | 1 000 | | 80 | 90 | |
| Tue. 31/03 | 03h | 1 500 | 800 | | 70 | 80 |
| 09h | 1 200 | - | | 50 | 60 | |
| 15h | 1 800 | - | | 40 | 50 | |
| 21h | 1 200 | - | | 35 | 45 | |
| Avalanche risk |
Snow limit | Snow depth at 2000m |
Fresh snow at 1800m |
|||
| Wed. 25/03 | N : 1 400 m S : 1 900 m | N : 120 cm S : 50 cm | 10 cm | |||
| Thu. 26/03 | N : 1 300 m S : 1 300 m | N : 125 cm S : 50 cm | 5 cm | |||
| Fri. 27/03 | N : 1 300 m S : 1 600 m | N : 120 cm S : 50 cm | 0 cm | |||
| Sat. 28/03 | N : 1 300 m S : 1 600 m | N : 120 cm S : 50 cm | 10 cm | |||
| Sun. 29/03 | N : 1 300 m S : 1 600 m | N : 120 cm S : 50 cm | 1 cm | |||
| Mon. 30/03 | N : 1 400 m S : 1 700 m | N : 120 cm S : 50 cm | 10 cm | |||
| Tue. 31/03 | N : 1 300 m S : 1 300 m | N : 120 cm S : 50 cm | ||||
| French | Translation & Notes |
|---|---|
| QUELQUES PLAQUES EN ALTITUDE DANS LA NEIGE RÉCENTE VENTÉE | SOME WIND SLABS AT ALTITUDE IN RECENT WIND-DRIFTED SNOW The title identifies the primary concern: plaques (slabs) and neige récente ventée (recent wind-drifted snow). |
| Déclenchements provoqués : plaques dures en place dans la neige récente ventée et entretenues par la Lombarde modérée. | Triggered releases: hard slabs in place in recent wind-drifted snow and maintained by the moderate Lombarde wind. Déclenchements provoqués refers to skier-triggered avalanches. The Lombarde is a specific easterly/south-easterly wind common in this region of the French Alps. |
| Présentes au-dessus de 2000 m environ dans les orientations d'un large secteur nord (ouest, nord et nord-est) , ces plaques sont néanmoins plus nombreuses et sensibles vers la Savoie où les quantités de neige fraîche sont un peu plus importantes. | Present above approximately 2000 m on orientations in a wide northern sector (west, north, and northeast), these slabs are nevertheless more numerous and sensitive towards Savoie where fresh snow quantities are slightly higher. Orientations refers to slope aspects. Sensibles means the slabs are reactive or easy to trigger. |
| Facilement déclenchables par le passage d'un skieur, ces instabilités génèrent des avalanches de taille petite à moyenne (taille 1 à 2). | Easily triggered by the passage of a skier, these instabilities generate small to medium-sized avalanches (size 1 to 2). Déclenchables means 'triggerable'. The scale refers to the European D-size (Destructive size) scale. |
| Départs spontanés : rares ruptures par surcharge du au vent (rupture de corniche par exemple). | Spontaneous releases: rare failures due to wind overload (cornice failure for example). Départs spontanés are natural avalanches. Surcharge means 'overload' or 'stress' added to the snowpack. |
| Avalanche petite à moyenne (taille 1 à 2). | Small to medium avalanche (size 1 to 2). Reiteration of the expected size for natural releases. |
| Temps sec et encore venté. | Dry and still windy weather. Venté is the adjective for windy. |
| 0° à 2000 m et -8° à 3000 m. | 0°C at 2000 m and -8°C at 3000 m. Standard air temperature forecast for different altitudes. |
| L'enneigement est proche des normales pour une fin mars. | The snow depth is close to normal for the end of March. Enneigement can mean 'snowfall' or 'snow cover/depth' depending on context; here it refers to current snow depths. |
| Hauteurs de neige observées vers 2500 m : 173 cm dans le vallon du Chardonnet, 125 cm à la nivôse des Rochilles, 84 cm à la Nivôse du Galibier (secteurs fortement ventés). | Observed snow heights around 2500 m: 173 cm in the Chardonnet valley, 125 cm at the Rochilles nivose station, 84 cm at the Galibier nivose station (strongly wind-scoured sectors). Nivôse is the term for Météo-France's automated high-altitude weather and snow stations. |
| Limite d'enneigement skiable : dès 1400 m en ubacs favorables (terrains herbeux, pistes forestières), 1800/1900 m en adrets pas trop raides. | Skiable snow line: from 1400 m on favorable shaded slopes (grassy terrain, forest tracks), 1800/1900 m on sunny slopes that are not too steep. Ubac means North-facing/shaded; Adret means South-facing/sunny. |
| État de la neige de surface : 3/5 cm de neige fraîche à proximité de la Savoie, fortement durcie et travaillée par le fort vent ou encore localement légère dans les secteurs bien abrités. | Surface snow condition: 3/5 cm of fresh snow near Savoie, strongly hardened and worked by the strong wind or still locally light in well-sheltered sectors. Travaillée par le vent (wind-worked) describes snow that has been transported or compacted by wind. |
| Sur les crêtes, d'épaisses corniches côtoient des zones pelées par le vent. | On the ridges, thick cornices sit alongside areas scoured by the wind. Pelées (literally 'peeled') describes areas where wind has stripped away the snow down to the crust or ground. |
| En versant sud, neige croutée sous 2500 m. | On southern slopes, crusted snow below 2500 m. Croutée (crusted) usually implies a freeze-thaw crust or a wind crust. |
| French Term | English Term | Definition |
|---|---|---|
| Taille 1 | Size 1 | Small avalanche (sluff). Unlikely to bury a person but can knock you off your feet or carry you into terrain traps. |
| Taille 2 | Size 2 | Medium avalanche. Can bury, injure, or kill a person. |
| Risque 2 - Limité | 2 - Moderate | Snowpack is moderately well bonded on some steep slopes, otherwise generally well bonded. Triggering is possible with high additional loads, particularly on indicated steep slopes. Large natural avalanches unlikely. |
| 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. |
| Corniche | Cornice | An overhanging mass of wind-deposited snow on the edge of a ridge or crest. Can break off unexpectedly and trigger avalanches on the slope below. |
| Surcharge | Additional load | Extra weight applied to the snowpack — a skier, group of skiers, new snowfall, or rain. Even a single person can be enough to trigger a slab avalanche on an unstable slope. |
| 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. |
| La Lombarde | Lombarde wind | A specific easterly or south-easterly wind that blows across the border ridges of the Alps, often transporting significant snow from Italy into France. |
| nivôse | nivose station | An automated remote weather station in the French mountains that measures snow depth, temperature, and other meteorological data. |
| pelées par le vent / ventés | wind-scoured | Terrain where strong winds have removed the surface snow, often leaving behind a hard crust or bare ground. |
| limite d'enneigement | snow line | The lowest elevation at which snow cover is present. |
| ubac | shaded slope | The north-facing or shaded side of a mountain, which stays colder and retains snow longer. |
| adret | sunny slope | The south-facing or sunny side of a mountain, which receives more direct solar radiation. |
| neige croutée | crusted snow | Snow that has a hard surface layer, often created by sun-melt followed by refreezing (melt-freeze crust) or by wind action. |
Bulletin d'estimation du risque d'avalanche
(valable en dehors des pistes balisées et ouvertes)
MASSIF : Thabor
rédigé le mardi 31 mars 2026 à 16 h.
Estimation des risques pour le mercredi 01 avril 2026
QUELQUES PLAQUES EN ALTITUDE DANS LA NEIGE RÉCENTE VENTÉE
Indices de risque : 5 très fort - 4 fort - 3 marqué - 2 limité - 1 faible -- En noir : les pentes les plus dangereuses
Au-dessus de 2000m indice de risque limité, plus bas indice faible.
Départs spontanés : une plaque surchargée par le vent peut céder spontanément. Taille limitée.
Déclenchements skieurs : instabilités dans la neige ventée, plus nombreuses vers la Savoie.
Stabilité du manteau neigeux jusqu'au mercredi 01 avril au soir
Situation avalancheuse typique :Neige ventée
Déclenchements provoqués : plaques dures en place dans la neige récente ventée et entretenues par la Lombarde modérée. Présentes au-dessus de 2000 m environ dans les orientations d'un large secteur nord (ouest, nord et nord-est) , ces plaques sont néanmoins plus nombreuses et sensibles vers la Savoie où les quantités de neige fraîche sont un peu plus importantes. Facilement déclenchables par le passage d'un skieur, ces instabilités génèrent des avalanches de taille petite à moyenne (taille 1 à 2). Départs spontanés : rares ruptures par surcharge du au vent (rupture de corniche par exemple). Avalanche petite à moyenne (taille 1 à 2).
Qualité de la neige
L'enneigement est proche des normales pour une fin mars.
Hauteurs de neige observées vers 2500 m : 173 cm dans le vallon du Chardonnet, 125 cm à la nivôse des Rochilles, 84 cm à la Nivôse du Galibier (secteurs fortement ventés).
Limite d'enneigement skiable : dès 1400 m en ubacs favorables (terrains herbeux, pistes forestières), 1800/1900 m en adrets pas trop raides.
État de la neige de surface : 3/5 cm de neige fraîche à proximité de la Savoie, fortement durcie et travaillée par le fort vent ou encore localement légère dans les secteurs bien abrités. Sur les crêtes, d'épaisses corniches côtoient des zones pelées par le vent. En versant sud, neige croutée sous 2500 m.
Aperçu météo pour le mercredi 01 avril
| nuit | matin | après-midi | soir | |
|---|---|---|---|---|
| | | | |
| Temps sec et encore venté. 0° à 2000 m et -8° à 3000 m. | ||||
| Pluie-Neige | - | - | - | - |
| Iso 0°C | 1400 m | 1600 m | 2000 m | 1500 m |
| Vent 2000 m | 25 km/h | 25 km/h | 35 km/h | 30 km/h |
| Vent 3000 m | 40 km/h | 40 km/h | 50 km/h | 45 km/h |
Epaisseur de neige hors-piste
Précipitations à 1800 m
Tendance du jeudi 02 avril
Indice de risque limité
Maintien d'un risque limité avec des plaques résiduelles en altitude. Reprise de l'humidification en sud.
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 | 30 | 50 | 70 | 80 | 90 | 90 | 80 | 70 | 65 | 50 | 30 | 30 | 30 | 40 | 50 | 60 | 45 | 20 | 30 | 30 | 30 | 50 | 80 | 90 | 80 | 60 | 50 | 45 |
| Vent (km/h) à 2000m | 15 | 25 | 70 | 70 | 60 | 55 | 50 | 45 | 40 | 35 | 15 | 15 | 20 | 30 | 40 | 35 | 35 | 20 | 30 | 25 | 30 | 40 | 60 | 80 | 70 | 50 | 40 | 35 |
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) 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) 2400 2100 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 | 2 500 | - | | 15 | 30 |
| 09h | 2 400 | - | | 25 | 50 | |
| 15h | 2 000 | 1 700 | | 70 | 70 | |
| 21h | 1 000 | 500 | | 70 | 80 | |
| jeu. 26/03 | 03h | 700 | 300 | | 60 | 90 |
| 09h | 700 | 300 | | 55 | 90 | |
| 15h | 900 | 500 | | 50 | 80 | |
| 21h | 700 | 400 | | 45 | 70 | |
| ven. 27/03 | 03h | 800 | 400 | | 40 | 65 |
| 09h | 900 | - | | 35 | 50 | |
| 15h | 1 600 | - | | 15 | 30 | |
| 21h | 1 800 | - | | 15 | 30 | |
| sam. 28/03 | 03h | 1 900 | - | | 20 | 30 |
| 09h | 2 000 | - | | 30 | 40 | |
| 15h | 2 000 | - | | 40 | 50 | |
| 21h | 1 500 | - | | 35 | 60 | |
| dim. 29/03 | 03h | 1 300 | 900 | | 35 | 45 |
| 09h | 1 300 | - | | 20 | 20 | |
| 15h | 2 000 | - | | 30 | 30 | |
| 21h | 2 000 | - | | 25 | 30 | |
| lun. 30/03 | 03h | 2 000 | - | | 30 | 30 |
| 09h | 2 100 | - | | 40 | 50 | |
| 15h | 2 300 | - | | 60 | 80 | |
| 21h | 1 700 | 1 000 | | 80 | 90 | |
| mar. 31/03 | 03h | 1 500 | 800 | | 70 | 80 |
| 09h | 1 200 | - | | 50 | 60 | |
| 15h | 1 800 | - | | 40 | 50 | |
| 21h | 1 200 | - | | 35 | 45 | |
| Risque avalanche |
Limite enneigement | Enneigement à 2000m |
Neige fraîche à 1800m |
|||
| mer. 25/03 | N : 1 400 m S : 1 900 m | N : 120 cm S : 50 cm | 10 cm | |||
| jeu. 26/03 | N : 1 300 m S : 1 300 m | N : 125 cm S : 50 cm | 5 cm | |||
| ven. 27/03 | N : 1 300 m S : 1 600 m | N : 120 cm S : 50 cm | 0 cm | |||
| sam. 28/03 | N : 1 300 m S : 1 600 m | N : 120 cm S : 50 cm | 10 cm | |||
| dim. 29/03 | N : 1 300 m S : 1 600 m | N : 120 cm S : 50 cm | 1 cm | |||
| lun. 30/03 | N : 1 400 m S : 1 700 m | N : 120 cm S : 50 cm | 10 cm | |||
| mar. 31/03 | N : 1 300 m S : 1 300 m | N : 120 cm S : 50 cm | ||||