AvalancheClarity

Aravis

Danger level 2 Moderate
Bulletin date: Saturday, April 25, 2026 at 04:00 PM
Valid until:

Ski resorts in this massif: La Clusaz, Le Grand-Bornand, Manigod, Saint-Jean-de-Sixt, La Giettaz, La Sambuy, Crest-Voland / Cohennoz, Flumet, Praz-sur-Arly, Cordon, Le Reposoir, Mont-Saxonnex, Seythenex

This is an AI-generated translation and summary. It may contain errors. Always read the full official Météo-France avalanche bulletin before any mountain activity.

Source: Météo-France

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Avalanche risk assessment bulletin

(valid outside of marked and open slopes)

MASSIF: Aravis

written on Saturday, 25 April 2026 at 4 p.m.

Pour consulter la vigilance en cours, veuillez vous rendre sur le site https://vigilance.meteofrance.fr/fr

Risk assessment for Sunday, 26 April 2026

Spring conditions


            Risque détaillé
NESW

Risk indices: 5 very high - 4 high - 3 considerable - 2 moderate - 1 low -- In black: the most dangerous slopes

Low risk index evolving to moderate.

Naturally triggered avalanches: wet snow avalanche

Skier-triggered releases: small wet snow slides under skis

Stability of the snow cover until Sunday, 26 April evening

Typical avalanche situation: Wet snowWet snowFull depth slab avalanchesFull depth slab avalanches

Naturally triggered avalanches: 
* rare wet snow avalanches, becoming more numerous with warming and solar radiation. Size 1 to 2 (small to medium). 
* a few glide slabs in grassy areas or rock slabs, at any time of the day or night. Below 2500 m. Size 2 (medium). Above 2300 m, on east, west and north aspects, small point-release avalanches can trigger a cascading glide slab. Rare size 3 (large).

Skier-triggered releases: 
* wet snow avalanches. Easy to trigger in the sun. Point release under the skis. Size 1 to 2. Caused by warming and solar radiation. 

Snow quality

    Snow conditions: 
For the season, snow conditions are below average below 2500 m 
Skis can be put on above 2000 m on south aspects and 1600 m on north aspects. 

Snow quality this Sunday morning: 
* below 2000 m, firn snow with good overnight refreezing
* above 2000 m, spring snow with good overnight refreezing. 
  

Weather overview for Sunday, 26 April

nightmorningafternoonevening
Sunny. Cumulus clouds over the relief in the afternoon. Maximum of 12°C at 2000 m.
Rain-Snow----
Iso 0°C3200 m3300 m3200 m3200 m
Wind 2000 m 5 km/h 10 km/h 10 km/h 5 km/h
Wind 2500 m 5 km/h 10 km/h 10 km/h 10 km/h

Off-piste snow depth

Sat. 25 April N S 100 cm 2000 m 0 cm 1500 m 0 cm 1000 m 40 cm 2000 m 0 cm 1500 m 0 cm 1000 m Continuous snow cover altitudes: North face : 1600 m South face : 1900 m

Precipitation at 1800 m

Cumulated quantities in 24 hours Fresh snow at 1800m Fresh snow Min Fresh snow Max Rain 5 10 Snow (cm) / Rain (mm) 0 0 0 Wed. 22 at 6h 0 0 0 Thu. 23 at 6h 0 0 0 Fri. 24 at 6h 0 0 0 Sat. 25 at 6h 0 0 0 Sun. 26 at 6h 0 0 0 Mon. 27 at 6h

Outlook for Monday, 27 April

Risk index moderate

Monday: dry weather and rare cumulus in the afternoon. 0°C isotherm around 3000 m. ⇒ continued wetting of the snow cover

Snow-weather conditions for the last 7 days

Last 7 days

Sun. 19/04Mon. 20/04Tue. 21/04Wed. 22/04Thu. 23/04Fri. 24/04Sat. 25/04
03h09h15h21h03h09h15h21h03h09h15h21h03h09h15h21h03h09h15h21h03h09h15h21h03h09h15h21h
Weather
Wind
(km/h)
at 2500m
152025302525202020202020202010101020152010510510152010
Wind
(km/h)
at 2000m
101515101015151010151510101055510101055551010155
Iso 0°CRain-snow limit
Altitude (m)
3200
2400
1600
800
0
Sun. 19/04Mon. 20/04Tue. 21/04Wed. 22/04Thu. 23/04Fri. 24/04Sat. 25/04
Fresh
snow (6h)
0 cm
Avalanche
Risk
Snow cover North and South at  1500m···   2000m- - -   2500m
Total snow
depth (cm)
200
160
120
80
40
0
1010105140130130120120110100
Sun. 19/04Mon. 20/04Tue. 21/04Wed. 22/04Thu. 23/04Fri. 24/04Sat. 25/04
Snow limit - North face   Snow limit - South face
Snow
limit (m)
2400
2100
1800
1500
1200
900
600
300
0
1600160015001500150015001600 1700180018001800180018001900
Sun. 19/04Mon. 20/04Tue. 21/04Wed. 22/04Thu. 23/04Fri. 24/04Sat. 25/04
Iso 0°C RSL Weather
at
1800m
Wind at
2000m
Wind at
2500m
Sun. 19/0403h2 700-
10
15
09h2 700-
15
20
15h2 6002 400
15
25
21h2 600-
10
30
Mon. 20/0403h2 700-
10
25
09h2 600-
15
25
15h2 600-
15
20
21h2 600-
10
20
Tue. 21/0403h2 600-
10
20
09h2 500-
15
20
15h2 500-
15
20
21h2 600-
10
20
Wed. 22/0403h2 600-
10
20
09h2 600-
10
20
15h2 600-
5
10
21h2 600-
5
10
Thu. 23/0403h2 600-
5
10
09h2 700-
10
20
15h2 900-
10
15
21h3 000-
10
20
Fri. 24/0403h3 000-
5
10
09h3 200-
5
5
15h3 200-
5
10
21h3 200-
5
5
Sat. 25/0403h2 900-
10
10
09h2 700-
10
15
15h2 800-
15
20
21h3 000-
5
10
Avalanche
risk
Snow limit Snow depth at
2000m
Fresh snow at
1800m
Sun. 19/04N : 1 600 m
S : 1 700 m
N : 140 cm
S : 80 cm
0 cm
Mon. 20/04N : 1 600 m
S : 1 800 m
N : 130 cm
S : 70 cm
0 cm
Tue. 21/04N : 1 500 m
S : 1 800 m
N : 130 cm
S : 70 cm
0 cm
Wed. 22/04N : 1 500 m
S : 1 800 m
N : 120 cm
S : 60 cm
0 cm
Thu. 23/04N : 1 500 m
S : 1 800 m
N : 120 cm
S : 60 cm
0 cm
Fri. 24/04N : 1 500 m
S : 1 800 m
N : 110 cm
S : 50 cm
0 cm
Sat. 25/04N : 1 600 m
S : 1 900 m
N : 100 cm
S : 40 cm

La documentation utile à la bonne lecture de ce BRA est disponible sur le guide avalanche 2025

Rédigé par Météo-France avec la contribution des observateurs du réseau nivo-météorologique. Partenariat : ANMSM (Maires de Stations de Montagne), DSF (Domaines Skiables de France), ADSP (Directeurs de Pistes et de la Sécurité des Stations de Sports d'Hiver) et autres acteurs de la montagne.

French Translation & Notes
Conditions printanières
Spring conditions
*Printanières* is the adjective for *printemps* (spring). In avalanche terms, this refers to a diurnal cycle of freezing at night and melting during the day.
Départs spontanés :
Spontaneous releases:
*Départs* refers to the start or release of an avalanche. *Spontanés* means natural activity occurring without human triggers.
rares avalanches de neige humide, plus nombreuses au fil du réchauffement et du rayonnement solaire.
rare wet snow avalanches, becoming more numerous as warming and solar radiation increase.
*Neige humide* (wet snow) is the primary concern here. *Au fil du* means 'over the course of' or 'as it progresses.' *Rayonnement solaire* is solar radiation, a major driver of spring instability.
Taille 1 à 2 (petite à moyenne).
Size 1 to 2 (small to medium).
Refers to the standard European avalanche size scale (1-5).
quelques plaques de fond dans les zones herbeuses ou les dalles rocheuses, à toute heure du jour ou de la nuit.
a few glide avalanches in grassy areas or rock slabs, at any hour of the day or night.
*Plaque de fond* literally means 'bottom slab,' the French term for a glide avalanche (where the entire snowpack slides on the ground). *Dalles rocheuses* are smooth rock slabs.
En dessous 2500 m.
Below 2500 m.
*En dessous* means below; note that glide avalanches are often more common at lower/mid altitudes where the ground-snow interface is warmer.
Taille 2 (moyenne).
Size 2 (medium).
Sufficient to bury or injure a person.
Au-dessus de 2300 m, dans les versants est, ouest et nord, de petits départs ponctuels peuvent déclencher, en cascade, une plaque de fond.
Above 2300 m, on east, west and north aspects, small point-releases can trigger, in a cascade, a glide avalanche.
*Versants* means slopes/aspects. *Départs ponctuels* are point-release (loose snow) avalanches. *En cascade* refers to a step-down process where a small surface slide triggers a larger, deeper layer.
Rare taille 3 (grande).
Rare size 3 (large).
Size 3 avalanches can destroy small buildings or snap trees.
Déclenchements provoqués :
Triggered releases:
Refers to avalanches caused by a load, usually a skier or hiker (*provoqué* = induced).
avalanches de neige humide.
wet snow avalanches.
The snow loses its strength as it melts, making it prone to sliding under the weight of a person.
Facile à déclencher au soleil.
Easy to trigger in the sun.
Emphasis on the timing of risk; shaded slopes remain stable while sunny slopes become dangerous.
Départ ponctuel sous les skis.
Point-release under the skis.
Unlike a slab avalanche (*plaque*), a *départ ponctuel* starts from a single point and fans out, often called a 'sluff'.
Taille 1 à 2.
Size 1 to 2.
Indicates that while these may be small, they can still push a skier off balance.
Causé par le réchauffement et le rayonnement solaire.
Caused by warming and solar radiation.
Reiterating that the sun is the primary trigger for this avalanche problem.
ensoleillé.
sunny.
Basic weather descriptor.
Cumulus au-dessus du relief l’après-midi.
Cumulus clouds over the relief in the afternoon.
*Relief* refers to the mountains/terrain. This is common in spring as heat rises from the peaks.
Au maximum 12°C à 2000 m.
Maximum of 12°C at 2000 m.
A very high temperature for 2000m, explaining the rapid snow softening.
Enneigement :
Snow coverage:
Refers to the quantity and distribution of snow on the ground.
Pour la saison, l’enneigement est déficitaire sous 2500 m
For the season, snow coverage is below average below 2500 m
*Déficitaire* means there is a deficit compared to historical norms.
On peut chausser les skis au-dessus de 2000 m en sud et 1600 m en nord.
Skis can be put on above 2000 m on south and 1600 m on north.
*Chausser les skis* literally means 'to put on shoes/skis,' a practical indicator of the snow line.
Qualité de la neige ce dimanche matin :
Snow quality this Sunday morning:
Crucial for planning the 'window' of safe travel before the snow gets too soft.
sous 2000 m, neige de névé avec un bon regel nocturne
below 2000 m, firn/old snow with a good overnight freeze
*Névé* refers to dense, compacted old snow. *Regel nocturne* (night freeze) is the key to spring stability; it creates a hard 'crust' that supports weight.
au-dessus de 2000 m, neige de printemps avec un bon regel nocturne.
above 2000 m, spring snow with a good overnight freeze.
*Neige de printemps* (spring snow) usually implies 'corn snow'—a cycle of melting and freezing that produces a buttery surface when it thaws slightly.
French Term English Term Definition Source
Départ spontané Naturally triggered avalanches Avalanche not caused by external forces, e.g. snowfall or loss in firmness due to weather conditions. European Avalanche Warning Services
Avalanche de fond Full depth slab avalanches An avalanche which glides over the ground, across firn snow or atop a glacier in the fracture zone, sweeping the entire season’s snowpack with it. European Avalanche Warning Services
déclenchable Skier-triggered releases 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. AvalancheClarity Static Glossary
Avalanche de neige mouillèe Wet snow avalanches Avalanche of wet snow masses. European Avalanche Warning Services
Enneigement Snow conditions The depth and distribution of snow on the ground across a mountain range. Varies with elevation, aspect, and snowfall history. AvalancheClarity Static Glossary
ensoleillement solar radiation Light and heat energy from the sun. Much of this is in the Ultraviolet part of the electromagnetic spectrum. Avalanche Center (US)
Avalanche de plaque Slab avalanches The abrupt release of a slab of snow on a mountain slope. European Avalanche Warning Services
marqué 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. European Avalanche Warning Services
reptation Glide Slabs A cohesive slab of snow, often consisting of the entire snowpack, that lacks significant support or friction from the bed surface. Avalanche Canada
Regel Refreezing Overnight freezing of the snow surface forming a hard crust. Refreezing temporarily stabilises the snowpack but strength decreases with daytime warming. AvalancheClarity Static Glossary
Manteau neigeux Snow cover Snow deposited on the ground in a multiplicity of layers. European Avalanche Warning Services
Hauteur de neige Snow depth Thickness of the snowpack measured vertically. European Avalanche Warning Services
Stabilité Stability The strength of a snowpack to withstand internal and external disturbances.Stability is determined by firmness vs. stress inside a snow layer. European Avalanche Warning Services
très fort very high Snowpack is generally unstable. Many large natural avalanches are expected, even on moderately steep terrain. Extremely dangerous conditions — avoid all avalanche terrain. European Avalanche Warning Services
Neige humide Wet snow The wet snow problem is related to the weakening of the snowpack due to the presence of liquid water. Water infiltrates the snowpack due to high radiation impact (sunshine) which leads to melt or rain (advecting energy into the snowpack leading to melt as well). European Avalanche Warning Services
limité 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. European Avalanche Warning Services
Exposition Aspects Direction in which a slope faces as indicated by compass direction of the fall line; i.e. a north slope faces in a northerly direction. European Avalanche Warning Services
moyen medium IACS/UNESCO
Névé Firn Snow accumulated in recent years, mostly atop glaciers, intensely metamorphosed and denser because of melting and refreezing, as well as from pressures of overlying snow masses. European Avalanche Warning Services
Risque Risk Likelihood of occurrence combines mathematical probability, risk exposure and possible damages. European Avalanche Warning Services
faible low Snowpack is generally well bonded and stable. Triggering is generally possible only from high additional loads in a few isolated steep extreme terrain features. Only small natural avalanches possible. European Avalanche Warning Services
sèche dry IACS/UNESCO
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Bulletin d'estimation du risque d'avalanche

(valable en dehors des pistes balisées et ouvertes)

MASSIF : Aravis

rédigé le samedi 25 avril 2026 à 16 h.

Pour consulter la vigilance en cours, veuillez vous rendre sur le site https://vigilance.meteofrance.fr/fr

Estimation des risques pour le dimanche 26 avril 2026

Conditions printanières


            Risque détaillé
NESO

Indices de risque : 5 très fort - 4 fort - 3 marqué - 2 limité - 1 faible -- En noir : les pentes les plus dangereuses

Indice de risque faible évoluant en limité.

Départs spontanés : avalanche de neige humide

Déclenchements skieurs : petits départs en neige humide sous les skis

Stabilité du manteau neigeux jusqu'au dimanche 26 avril au soir

Situation avalancheuse typique :Neige humideNeige humideAvalanches de fondAvalanches de fond

Départs spontanés : 
* rares avalanches de neige humide, plus nombreuses au fil du réchauffement et du rayonnement solaire. Taille 1 à 2 (petite à moyenne).
* quelques plaques de fond dans les zones herbeuses ou les dalles rocheuses, à toute heure du jour ou de la nuit. En dessous 2500 m. Taille 2 (moyenne). Au-dessus de 2300 m, dans les versants est, ouest et nord, de petits départs ponctuels peuvent déclencher, en cascade, une plaque de fond. Rare taille 3 (grande).

Déclenchements provoqués : 
* avalanches de neige humide. Facile à déclencher au soleil. Départ ponctuel sous les skis. Taille 1 à  2. Causé par le réchauffement et le rayonnement solaire. 

Qualité de la neige

    Enneigement : 
Pour la saison, l’enneigement est déficitaire sous 2500 m 
On peut chausser les skis au-dessus de 2000 m en sud et 1600 m en nord. 

Qualité de la neige ce dimanche matin : 
* sous 2000 m, neige de névé avec un bon regel nocturne
* au-dessus de 2000 m, neige de printemps avec un bon regel nocturne. 
  

Aperçu météo pour le dimanche 26 avril

nuitmatinaprès-midisoir
ensoleillé. Cumulus au-dessus du relief l’après-midi. Au maximum 12°C à 2000 m.
Pluie-Neige----
Iso 0°C3200 m3300 m3200 m3200 m
Vent 2000 m 5 km/h 10 km/h 10 km/h 5 km/h
Vent 2500 m 5 km/h 10 km/h 10 km/h 10 km/h

Epaisseur de neige hors-piste

sam. 25 avril N S 100 cm 2000 m 0 cm 1500 m 0 cm 1000 m 40 cm 2000 m 0 cm 1500 m 0 cm 1000 m Altitudes d'enneigement continu : Versant NORD : 1600 m Versant SUD : 1900 m

Précipitations à 1800 m

Quantités cumulées en 24 heures Neige fraîche à 1800m Neige fraîche Min Neige fraîche Max Pluie 5 10 Neige (cm) / Pluie (mm) 0 0 0 mer. 22 à 6h 0 0 0 jeu. 23 à 6h 0 0 0 ven. 24 à 6h 0 0 0 sam. 25 à 6h 0 0 0 dim. 26 à 6h 0 0 0 lun. 27 à 6h

Tendance du lundi 27 avril

Indice de risque limité

Lundi : temps sec et rares cumulus l’après-midi. Isotherme 0°C vers 3000 m. ⇒ poursuite de l’humidification du manteau neigeux

Conditions nivo-météo des 7 derniers jours

Les 7 derniers jours

dim. 19/04lun. 20/04mar. 21/04mer. 22/04jeu. 23/04ven. 24/04sam. 25/04
03h09h15h21h03h09h15h21h03h09h15h21h03h09h15h21h03h09h15h21h03h09h15h21h03h09h15h21h
Météo
Vent
(km/h)
à 2500m
152025302525202020202020202010101020152010510510152010
Vent
(km/h)
à 2000m
101515101015151010151510101055510101055551010155
Iso 0°CLimite pluie-neige
Altitude en m
3200
2400
1600
800
0
dim. 19/04lun. 20/04mar. 21/04mer. 22/04jeu. 23/04ven. 24/04sam. 25/04
Neige
fraîche (6h)
0 cm
Risque
d'Avalanche
Enneigement versant Nord et Sud à  1500m···   2000m- - -   2500m
Hauteur totale
de neige (cm)
200
160
120
80
40
0
1010105140130130120120110100
dim. 19/04lun. 20/04mar. 21/04mer. 22/04jeu. 23/04ven. 24/04sam. 25/04
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
1600160015001500150015001600 1700180018001800180018001900
dim. 19/04lun. 20/04mar. 21/04mer. 22/04jeu. 23/04ven. 24/04sam. 25/04
Iso 0°C LPN Météo
à
1800m
Vent à
2000m
Vent à
2500m
dim. 19/0403h2 700-
10
15
09h2 700-
15
20
15h2 6002 400
15
25
21h2 600-
10
30
lun. 20/0403h2 700-
10
25
09h2 600-
15
25
15h2 600-
15
20
21h2 600-
10
20
mar. 21/0403h2 600-
10
20
09h2 500-
15
20
15h2 500-
15
20
21h2 600-
10
20
mer. 22/0403h2 600-
10
20
09h2 600-
10
20
15h2 600-
5
10
21h2 600-
5
10
jeu. 23/0403h2 600-
5
10
09h2 700-
10
20
15h2 900-
10
15
21h3 000-
10
20
ven. 24/0403h3 000-
5
10
09h3 200-
5
5
15h3 200-
5
10
21h3 200-
5
5
sam. 25/0403h2 900-
10
10
09h2 700-
10
15
15h2 800-
15
20
21h3 000-
5
10
Risque
avalanche
Limite enneigement Enneigement à
2000m
Neige fraîche à
1800m
dim. 19/04N : 1 600 m
S : 1 700 m
N : 140 cm
S : 80 cm
0 cm
lun. 20/04N : 1 600 m
S : 1 800 m
N : 130 cm
S : 70 cm
0 cm
mar. 21/04N : 1 500 m
S : 1 800 m
N : 130 cm
S : 70 cm
0 cm
mer. 22/04N : 1 500 m
S : 1 800 m
N : 120 cm
S : 60 cm
0 cm
jeu. 23/04N : 1 500 m
S : 1 800 m
N : 120 cm
S : 60 cm
0 cm
ven. 24/04N : 1 500 m
S : 1 800 m
N : 110 cm
S : 50 cm
0 cm
sam. 25/04N : 1 600 m
S : 1 900 m
N : 100 cm
S : 40 cm

La documentation utile à la bonne lecture de ce BRA est disponible sur le guide avalanche 2025

Rédigé par Météo-France avec la contribution des observateurs du réseau nivo-météorologique. Partenariat : ANMSM (Maires de Stations de Montagne), DSF (Domaines Skiables de France), ADSP (Directeurs de Pistes et de la Sécurité des Stations de Sports d'Hiver) et autres acteurs de la montagne.