Haute-Bigorre
Ski resorts in this massif: Grand Tourmalet (Barèges), Grand Tourmalet (La Mongie), Cauterets, Luz-Ardiden, Gavarnie-Gèdre, Hautacam, Piau-Engaly
Source: Météo-France
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.
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Avalanche risk assessment bulletin
(valid outside marked and open runs)
MASSIF : Haute-Bigorre
written on Tuesday, March 31, 2026 at 4 p.m.
Risk assessment for Wednesday, April 01, 2026
Significant snowfall, formation of thick slabs at altitude resting on an unstable snowpack.
Risk indices: 5 very high - 4 high - 3 considerable - 2 moderate - 1 low -- In black: the most dangerous slopes
Considerable risk index increasing to high.
Natural avalanches: Numerous point-release avalanches on steep slopes as the snowfall continues.
Skier-triggered avalanches: Formation of thick slabs, resting on an unstable snowpack above 2200m.
Snowpack stability until Wednesday evening, April 01
Typical avalanche situation:New snow
Triggered releases: Above 2200m, wind slabs are forming as the snowfall continues this Wednesday on steep slopes, preferably sheltered from the North to North-East wind (broad South sector, including West and East). These wind slabs are becoming increasingly thick with the snowfall and are also likely to be found on other slopes with strong North to North-East winds. They rest on slabs already formed the day before and in place on Wednesday morning, themselves masking the weekend accumulations which are not yet fully stabilized. A single skier can thus easily trigger these slabs, leading to medium to large avalanches from the morning (size 2 to 3), sometimes even very large avalanches (size 4) as the snowfall continues during the day and in significant accumulation zones. Below 2200m, the slabs currently forming rest on the previous day's slabs already in place in the morning, which themselves rest on a hard to refrozen snowpack. They are also easily triggered by a single skier, causing medium to large linear fractures (size 2 to 3) as the snowfall continues throughout the day. Natural avalanches: With the expected snowfall, medium to large avalanches are expected from Wednesday morning on all steep slopes. As the snowfall continues during the day, snow accumulations increase significantly, giving rise to numerous medium to large avalanches (size 2 to 3), or even very large avalanches (size 4), especially starting from heavily loaded couloirs or steep accumulation zones sheltered from the North wind, therefore mostly North-East to South-West sectors. It is also possible to have spontaneous releases of the slabs described above, above 2200m, due to wind loading, resulting in medium to large avalanches (size 2 to 3), sometimes even very large avalanches (size 4) as the snowfall continues during the day.
Snow quality
Snow cover: Correct for the season above 1800m, but remaining rather thin on slopes exposed to North to West winds. Heavy snowfall expected this Wednesday, following Tuesday's, snow accumulations will increase significantly throughout the day. Additional centimeters of snow are expected from 1300m this Wednesday.
Snow condition: Wednesday morning, several centimeters of new snow from the previous day and night. This snow layer will thicken considerably as the day's snowfall continues, covering a generally spring-like snowpack below 2000m, well refrozen. Higher up, the new snow is increasingly worked by the North wind, alternating between hard wind-scoured surfaces and softer accumulations.
Weather overview for Wednesday, April 01
| night | morning | afternoon | evening | |
|---|---|---|---|---|
| Frequent snowfall during the day with significant totals, strong North wind at altitude, snow starting from approximately 1300m. | ||||
| Rain-Snow | 1300m | 1300m | 1500m | 1200m |
| Iso 0°C | 1600 m | 1700 m | 1600 m | 1400 m |
| Wind 2000 m | 40 km/h | 40 km/h | 45 km/h | 60 km/h |
| Wind 3000 m | 75 km/h | 80 km/h | 85 km/h | 90 km/h |
Off-piste snow depth
Precipitation at 1800 m
Trend for Thursday, April 02
High risk index
High risk maintained in a still windy North atmosphere. New snowfall to come.
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 | 70 | 70 | 75 | 80 | 90 | 80 | 75 | 80 | 70 | 70 | 65 | 50 | 45 | 55 | 60 | 85 | 90 | 105 | 85 | 75 | 65 | 70 | 75 | 80 | 70 | 70 | 70 | 90 |
| Wind (km/h) at 2000m | 15 | 10 | 25 | 35 | 35 | 30 | 20 | 30 | 25 | 25 | 25 | 15 | 15 | 20 | 30 | 55 | 65 | 70 | 60 | 40 | 25 | 25 | 35 | 40 | 35 | 35 | 35 | 45 |
Iso 0°CRain-snow limit | ||||||||||||||||||||||||||||
Altitude (m) 3200 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) 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) 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 | 3 100 | - | 15 | 70 | |
| 09h | 3 100 | - | 10 | 70 | ||
| 15h | 1 700 | 1 400 | 25 | 75 | ||
| 21h | 1 200 | 900 | 35 | 80 | ||
| Thu. 26/03 | 03h | 1 000 | 700 | 35 | 90 | |
| 09h | 1 200 | 900 | 30 | 80 | ||
| 15h | 1 200 | 800 | 20 | 75 | ||
| 21h | 900 | 700 | 30 | 80 | ||
| Fri. 27/03 | 03h | 1 100 | - | 25 | 70 | |
| 09h | 1 200 | - | 25 | 70 | ||
| 15h | 1 400 | - | 25 | 65 | ||
| 21h | 1 300 | - | 15 | 50 | ||
| Sat. 28/03 | 03h | 1 300 | - | 15 | 45 | |
| 09h | 1 600 | - | 20 | 55 | ||
| 15h | 1 400 | 1 100 | 30 | 60 | ||
| 21h | 900 | 700 | 55 | 85 | ||
| Sun. 29/03 | 03h | 500 | 400 | 65 | 90 | |
| 09h | 700 | 500 | 70 | 105 | ||
| 15h | 1 100 | 700 | 60 | 85 | ||
| 21h | 1 000 | 700 | 40 | 75 | ||
| Mon. 30/03 | 03h | 1 200 | 700 | 25 | 65 | |
| 09h | 1 900 | 1 000 | 25 | 70 | ||
| 15h | 2 200 | 2 000 | 35 | 75 | ||
| 21h | 2 100 | 1 700 | 40 | 80 | ||
| Tue. 31/03 | 03h | 1 500 | 1 200 | 35 | 70 | |
| 09h | 1 400 | 1 200 | 35 | 70 | ||
| 15h | 1 500 | 1 300 | 35 | 70 | ||
| 21h | 1 500 | 1 200 | 45 | 90 | ||
| Avalanche risk |
Snow limit | Snow depth at 2000m |
Fresh snow at 1800m |
|||
| Wed. 25/03 | N : 1 600 m S : 1 700 m | N : 160 cm S : 45 cm | 5 cm | |||
| Thu. 26/03 | N : 1 500 m S : 1 800 m | N : 160 cm S : 45 cm | 3 cm | |||
| Fri. 27/03 | N : 1 600 m S : 1 800 m | N : 160 cm S : 45 cm | 0 cm | |||
| Sat. 28/03 | N : 1 600 m S : 1 800 m | N : 165 cm S : 50 cm | 15 cm | |||
| Sun. 29/03 | N : 900 m S : 900 m | N : 170 cm S : 55 cm | 5 cm | |||
| Mon. 30/03 | N : 1 200 m S : 1 300 m | N : 185 cm S : 70 cm | 5 cm | |||
| Tue. 31/03 | N : 1 200 m S : 1 300 m | N : 195 cm S : 80 cm | ||||
| French | Translation & Notes |
|---|---|
| Chutes de neige marquées, formation de plaques épaisses en altitude reposant sur un manteau neigeux instable. | Significant snowfall, formation of thick slabs at altitude resting on an unstable snowpack. Chutes de neige means snowfall. Marquées (marked) is used here to mean significant or heavy. Plaques is the standard term for avalanche slabs. Reposant sur means 'resting on'. |
| Au-dessus de 2200m, des plaques à vent se forment au fil des chutes de neige de ce mercredi dans les pentes raides préférentiellement à l'abri du vent de Nord à Nord-Est (large secteur Sud, en y ajoutant l'Ouest et l'Est). | Above 2200m, wind slabs are forming throughout this Wednesday's snowfall on steep slopes, preferentially in areas sheltered from the North to North-East wind (wide Southern sector, including West and East). Plaques à vent are wind slabs. Au fil des means 'throughout' or 'as it goes'. À l'abri du vent means sheltered/lee side. The 'wide southern sector' covers the aspects opposite to the North/NE wind. |
| Ces plaques à vent sont de plus en plus épaisses au fil de chutes de neige et sont aussi susceptibles de se trouver dans les autres versants avec du vent fort de Nord à Nord-Est. | These wind slabs are becoming increasingly thick as the snow falls and are also likely to be found on other aspects due to strong North to North-East winds. De plus en plus épaisses means 'thicker and thicker'. Versants means slopes or aspects. Susceptibles de means 'likely to'. |
| Elles viennent reposer sur des plaques déjà formées la veille et en place mercredi matin, masquant elles-mêmes les accumulations du week-end qui ne sont pas encore totalement stabilisées. | They are resting on slabs already formed the previous day and in place Wednesday morning, which themselves mask the accumulations from the weekend that are not yet fully stabilized. La veille means 'the day before'. Masquant comes from masquer (to hide/mask). This describes a 'sandwich' of different layers of instability. |
| Un simple skieur peut ainsi facilement solliciter ces plaques, et ainsi engendrer des avalanches moyennes à grandes dès la matinée (taille 2 à 3), parfois même de très grandes avalanches (taille 4) au fil des chutes de neige de la journée et dans les zones d'accumulation importantes. | A single skier can thus easily trigger these slabs, thereby causing Size 2 to 3 avalanches (medium to large) from the morning, and sometimes even very large avalanches (Size 4) as snowfall continues throughout the day in areas of significant accumulation. Solliciter in an avalanche context means to stress or trigger a layer. Engendrer means to cause or generate. Dès la matinée means 'starting from the morning'. |
| Sous 2200m, les plaques en cours de formation viennent reposer sur les plaques de la veille déjà en place le matin, elles-mêmes reposant sur un manteau dur à regelé. | Below 2200m, the slabs currently forming are resting on the previous day's slabs already in place in the morning, which themselves rest on a hard to refrozen snowpack. En cours de formation means 'currently forming'. Manteau is short for manteau neigeux (snowpack). Regelé refers to snow that has undergone a melt-freeze cycle and is currently frozen. |
| Elles sont aussi facilement déclenchables par un simple skieur, engendrant des cassures linéaires moyennes à grandes (taille 2 à 3) au fil des chutes de neige et de la journée. | They are also easily triggered by a single skier, causing medium to large linear fractures (Size 2 to 3) as the snowfall progresses through the day. Déclenchables means 'triggerable'. Cassures linéaires refers to the crown or fracture line of a slab avalanche. |
| Avec les chutes de neige attendues, des avalanches moyennes à grandes sont attendues dès mercredi matin en tous versants raides. | With the expected snowfall, medium to large avalanches are expected from Wednesday morning on all steep slopes. En tous versants raides emphasizes that the risk is not aspect-dependent for natural releases. |
| Au fur et à mesure des chutes de neige de la journée, les cumuls de neige augmentent nettement, donnant lieu à de nombreuses avalanches de tailles moyennes à grandes (taille 2 à 3), voire de très grandes avalanches (taille 4), notamment en partant de couloirs très chargés ou de zones d'accumulation raides à l'abri du vent de Nord, donc plutôt des secteurs Nord-Est à Sud-Ouest. | As the snowfall continues during the day, snow totals will increase significantly, leading to numerous Size 2 to 3 avalanches (medium to large), or even very large avalanches (Size 4), particularly starting from heavily loaded couloirs or steep accumulation zones sheltered from the North wind, primarily in North-East to South-West sectors. Au fur et à mesure means 'as it progresses' or 'gradually'. Cumuls refers to the total accumulated depth. Voire means 'even' or 'indeed'. |
| Il est aussi possible d'avoir des départs ponctuels des plaques décrites ci-dessus, au-dessus de 2200m, par surcharge par le vent, engendrant des avalanches moyennes à grandes (taille 2 à 3), parfois même de très grandes avalanches (taille 4) au fil des chutes de neige de la journée. | It is also possible to have isolated releases of the slabs described above, above 2200m, due to wind loading, resulting in Size 2 to 3 avalanches, sometimes even very large avalanches (Size 4) as the snowfall continues throughout the day. Départs ponctuels usually means point-release avalanches, but here in context with slabs, it refers to isolated, spontaneous slab failures. Surcharge means additional load/overload. |
| Chutes de neige fréquentes en journée avec des cumuls importants, du vent de Nord fort en altitude, de la neige dès 1300m environ. | Frequent snowfall during the day with significant totals, strong North wind at altitude, snow starting from approximately 1300m. Fort en altitude means strong at high elevations. Dès 1300m indicates the snow line (altitude at which rain turns to snow). |
| Enneigement : Correct pour la saison au-dessus de 1800m, mais restant assez maigre en versants exposés aux vents de nord à ouest. | Snow coverage: Decent for the season above 1800m, but remaining quite thin on aspects exposed to the North to West winds. Enneigement is the noun for snow coverage. Maigre (literally 'thin' or 'lean') means the snowpack is shallow/scant. |
| Chutes de neige importantes attendues ce mercredi, poursuivant celles de mardi, les cumuls de neige vont nettement augmenter au fil de la journée. | Significant snowfall expected this Wednesday, following Tuesday's snow; snow totals will increase significantly throughout the day. Poursuivant means 'continuing' or 'following'. Nettement means 'distinctly' or 'significantly'. |
| Des centimètres de neige supplémentaires sont attendues dès 1300m ce mercredi. | Additional centimeters of snow are expected from 1300m this Wednesday. Supplémetaires means additional/extra. |
| État de la neige : Mercredi matin, plusieurs centimètres de neige fraîche datant de la veille et de la nuit. | Snow state: Wednesday morning, several centimeters of fresh snow from the previous day and night. Datant de means 'dating from' or 'originating from'. |
| Cette couche de neige s'épaissit considérablement au fil des chutes de neige de la journée, recouvrant un manteau neigeux en général printanier sous 2000m, bien regelé. | This snow layer thickens considerably with the day's snowfall, covering a snowpack that is generally spring-like below 2000m and well refrozen. S'épaissit means 'thickens'. Manteau neigeux printanier describes a snowpack that has undergone melt-freeze cycles (typical of spring). |
| Plus haut, la neige fraîche est de plus en plus travaillée par le vent de Nord, alternant surface dures pelées par le vent et accumulations plus meubles. | Higher up, the fresh snow is increasingly wind-affected by the North wind, alternating between hard wind-scoured surfaces and softer accumulations. Travaillée par le vent means wind-affected or wind-drifted. Pelées (literally 'peeled') means wind-scoured or stripped of snow. Meubles means loose/unconsolidated. |
| French Term | English Term | Definition |
|---|---|---|
| Taille 2 | Size 2 | Medium avalanche. Can bury, injure, or kill a person. |
| Taille 3 | Size 3 | Large avalanche. Can bury and destroy a car, damage a truck, destroy small buildings, or break trees. |
| Taille 4 | Size 4 | Very large avalanche. Can destroy large buildings, flatten mature forest, and cover large areas of the valley floor. |
| 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. |
| Pente raide | Steep slope | Slopes steeper than approximately 30°, where most slab avalanches occur. The steeper the slope, the lower the additional load needed to trigger a release. |
| Couloir | Couloir | A narrow, steep gully or chute on a mountainside. Acts as a natural funnel for avalanches, concentrating debris and making them particularly dangerous. |
| Cassure | Crown / Fracture line | The line along which a slab avalanche fractures and separates from the stable snow above. The height of the crown wall indicates the slab thickness and avalanche severity. |
| 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. |
| Ancien manteau neigeux | Old snowpack | The snow layers from previous snowfall events that have undergone metamorphism. Weak layers within the old snowpack can persist for weeks or months. |
| à l'abri du vent | lee side / sheltered from wind | The side of a mountain or ridge that is protected from the prevailing wind, where snow tends to accumulate in drifts. |
| zone d'accumulation | accumulation zone | Areas where wind-blown snow or heavy precipitation deposits significant amounts of snow, often increasing avalanche risk. |
| regelé | refrozen | Snow that has previously melted or become moist and has then frozen solid, typically creating a hard crust. |
| manteau neigeux printanier | spring snowpack | A snowpack characterized by melt-freeze cycles, often consisting of large grains and becoming wet/mushy during the day and hard at night. |
| départ ponctuel | isolated release | An avalanche that triggers at a specific point, though in the context of slab stability, it may refer to localized failures rather than widespread natural activity. |
| surcharge par le vent | wind loading | The added weight and stress placed on a snow slope by snow being transported and deposited by the wind. |
Bulletin d'estimation du risque d'avalanche
(valable en dehors des pistes balisées et ouvertes)
MASSIF : Haute-Bigorre
rédigé le mardi 31 mars 2026 à 16 h.
Estimation des risques pour le mercredi 01 avril 2026
Chutes de neige marquées, formation de plaques épaisses en altitude reposant sur un manteau neigeux instable.
Indices de risque : 5 très fort - 4 fort - 3 marqué - 2 limité - 1 faible -- En noir : les pentes les plus dangereuses
Indice de risque marqué évoluant en fort.
Départs spontanés : Nombreux départs ponctuels en pentes raides au fil des chutes de neige.
Déclenchements skieurs : Formations de plaques épaisses, reposant sur un manteau neigeux instable au-dessus de 2200m.
Stabilité du manteau neigeux jusqu'au mercredi 01 avril au soir
Situation avalancheuse typique :Neige fraîche
Déclenchements provoqués : Au-dessus de 2200m, des plaques à vent se forment au fil des chutes de neige de ce mercredi dans les pentes raides préférentiellement à l'abri du vent de Nord à Nord-Est (large secteur Sud, en y ajoutant l'Ouest et l'Est). Ces plaques à vent sont de plus en plus épaisses au fil de chutes de neige et sont aussi susceptibles de se trouver dans les autres versants avec du vent fort de Nord à Nord-Est. Elles viennent reposer sur des plaques déjà formées la veille et en place mercredi matin, masquant elles-mêmes les accumulations du week-end qui ne sont pas encore totalement stabilisées. Un simple skieur peut ainsi facilement solliciter ces plaques, et ainsi engendrer des avalanches moyennes à grandes dès la matinée (taille 2 à 3), parfois même de très grandes avalanches (taille 4) au fil des chutes de neige de la journée et dans les zones d'accumulation importantes. Sous 2200m, les plaques en cours de formation viennent reposer sur les plaques de la veille déjà en place le matin, elles-mêmes reposant sur un manteau dur à regelé. Elles sont aussi facilement déclenchables par un simple skieur, engendrant des cassures linéaires moyennes à grandes (taille 2 à 3) au fil des chutes de neige et de la journée. Départs spontanés : Avec les chutes de neige attendues, des avalanches moyennes à grandes sont attendues dès mercredi matin en tous versants raides. Au fur et à mesure des chutes de neige de la journée, les cumuls de neige augmentent nettement, donnant lieu à de nombreuses avalanches de tailles moyennes à grandes (taille 2 à 3), voire de très grandes avalanches (taille 4), notamment en partant de couloirs très chargés ou de zones d'accumulation raides à l'abri du vent de Nord, donc plutôt des secteurs Nord-Est à Sud-Ouest. Il est aussi possible d'avoir des départs ponctuels des plaques décrites ci-dessus, au-dessus de 2200m, par surcharge par le vent, engendrant des avalanches moyennes à grandes (taille 2 à 3), parfois même de très grandes avalanches (taille 4) au fil des chutes de neige de la journée.
Qualité de la neige
Enneigement : Correct pour la saison au-dessus de 1800m, mais restant assez maigre en versants exposés aux vents de nord à ouest. Chutes de neige importantes attendues ce mercredi, poursuivant celles de mardi, les cumuls de neige vont nettement augmenter au fil de la journée. Des centimètres de neige supplémentaires sont attendues dès 1300m ce mercredi.
État de la neige : Mercredi matin, plusieurs centimètres de neige fraîche datant de la veille et de la nuit. Cette couche de neige s'épaissit considérablement au fil des chutes de neige de la journée, recouvrant un manteau neigeux en général printanier sous 2000m, bien regelé. Plus haut, la neige fraîche est de plus en plus travaillée par le vent de Nord, alternant surface dures pelées par le vent et accumulations plus meubles.
Aperçu météo pour le mercredi 01 avril
| nuit | matin | après-midi | soir | |
|---|---|---|---|---|
| Chutes de neige fréquentes en journée avec des cumuls importants, du vent de Nord fort en altitude, de la neige dès 1300m environ. | ||||
| Pluie-Neige | 1300m | 1300m | 1500m | 1200m |
| Iso 0°C | 1600 m | 1700 m | 1600 m | 1400 m |
| Vent 2000 m | 40 km/h | 40 km/h | 45 km/h | 60 km/h |
| Vent 3000 m | 75 km/h | 80 km/h | 85 km/h | 90 km/h |
Epaisseur de neige hors-piste
Précipitations à 1800 m
Tendance du jeudi 02 avril
Indice de risque fort
Maintien d'un risque fort dans une ambiance encore ventée de Nord. Nouvelles chutes de neige à venir.
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 | 70 | 70 | 75 | 80 | 90 | 80 | 75 | 80 | 70 | 70 | 65 | 50 | 45 | 55 | 60 | 85 | 90 | 105 | 85 | 75 | 65 | 70 | 75 | 80 | 70 | 70 | 70 | 90 |
| Vent (km/h) à 2000m | 15 | 10 | 25 | 35 | 35 | 30 | 20 | 30 | 25 | 25 | 25 | 15 | 15 | 20 | 30 | 55 | 65 | 70 | 60 | 40 | 25 | 25 | 35 | 40 | 35 | 35 | 35 | 45 |
Iso 0°CLimite pluie-neige | ||||||||||||||||||||||||||||
Altitude en m 3200 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) 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) 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 | 3 100 | - | 15 | 70 | |
| 09h | 3 100 | - | 10 | 70 | ||
| 15h | 1 700 | 1 400 | 25 | 75 | ||
| 21h | 1 200 | 900 | 35 | 80 | ||
| jeu. 26/03 | 03h | 1 000 | 700 | 35 | 90 | |
| 09h | 1 200 | 900 | 30 | 80 | ||
| 15h | 1 200 | 800 | 20 | 75 | ||
| 21h | 900 | 700 | 30 | 80 | ||
| ven. 27/03 | 03h | 1 100 | - | 25 | 70 | |
| 09h | 1 200 | - | 25 | 70 | ||
| 15h | 1 400 | - | 25 | 65 | ||
| 21h | 1 300 | - | 15 | 50 | ||
| sam. 28/03 | 03h | 1 300 | - | 15 | 45 | |
| 09h | 1 600 | - | 20 | 55 | ||
| 15h | 1 400 | 1 100 | 30 | 60 | ||
| 21h | 900 | 700 | 55 | 85 | ||
| dim. 29/03 | 03h | 500 | 400 | 65 | 90 | |
| 09h | 700 | 500 | 70 | 105 | ||
| 15h | 1 100 | 700 | 60 | 85 | ||
| 21h | 1 000 | 700 | 40 | 75 | ||
| lun. 30/03 | 03h | 1 200 | 700 | 25 | 65 | |
| 09h | 1 900 | 1 000 | 25 | 70 | ||
| 15h | 2 200 | 2 000 | 35 | 75 | ||
| 21h | 2 100 | 1 700 | 40 | 80 | ||
| mar. 31/03 | 03h | 1 500 | 1 200 | 35 | 70 | |
| 09h | 1 400 | 1 200 | 35 | 70 | ||
| 15h | 1 500 | 1 300 | 35 | 70 | ||
| 21h | 1 500 | 1 200 | 45 | 90 | ||
| Risque avalanche |
Limite enneigement | Enneigement à 2000m |
Neige fraîche à 1800m |
|||
| mer. 25/03 | N : 1 600 m S : 1 700 m | N : 160 cm S : 45 cm | 5 cm | |||
| jeu. 26/03 | N : 1 500 m S : 1 800 m | N : 160 cm S : 45 cm | 3 cm | |||
| ven. 27/03 | N : 1 600 m S : 1 800 m | N : 160 cm S : 45 cm | 0 cm | |||
| sam. 28/03 | N : 1 600 m S : 1 800 m | N : 165 cm S : 50 cm | 15 cm | |||
| dim. 29/03 | N : 900 m S : 900 m | N : 170 cm S : 55 cm | 5 cm | |||
| lun. 30/03 | N : 1 200 m S : 1 300 m | N : 185 cm S : 70 cm | 5 cm | |||
| mar. 31/03 | N : 1 200 m S : 1 300 m | N : 195 cm S : 80 cm | ||||