Chamonix weather forecast snow report from Henry's Avalanche Talk

Avalanche bulletin and weather forecast Haute Savoie

This avalanche translation of the Meteo France avalanche bulletin is produced mainly through an automated translation tool.  Please use it in conjunction with the French bulletin found at the above link.

N74150111
BULLETIN FOR ESTIMATING THE RISK OF AVALANCHES
FOR HAUTE SAVOIE
Valid off marked and open trails
FOR WEDNESDAY 16 JANUARY 2008
(Drafted Tuesday, January 15)

ESTIMATE OF RISK UNTIL WEDNESDAY EVENING:
For all the massive Haute Savoie: Risk marked (level 3).

WEATHER OVERVIEW UNTIL WEDNESDAY EVENING:
In the night from Tuesday to Wednesday, a lot of wind and moderate snowfall above 1500 m (5 to 10 cm at 2000 m). Improved Wednesday with clouds and light before the outbreak of snow until about 1000 m.

Isothermal 0 DG: 1800 m to 1500 m dropping Wednesday late in the day.
Wind around 2000 m: south-southwest 60 to 100 km / h in the night and then 40 km / h Wednesday.
Wind around 4000 m: Southwest, 90 and 70 km / h.

SNOW CONDITIONS:
Snow is correct for a mid-January, in the normal range. Towards 1500 m, there is an average of one layer of 70 cm in the north, about 40 to 50 cm in the south.
The departure of skiing are in good conditions over 1000 to 1200 m in the north.

Quality of snow for Wednesday: The mostly cold wind-packed snow conditions and even stripped to the very hard snow, except at low altitude where it will be wet by rain.

STABILITY OF SNOW COVER:
Slab avalanches: a risk well marked!

On the night of Monday/Tuesday, there was an average of 10 to 20 cm of new snow.

This Tuesday, especially in certain sectors of the Aravis and Chablais, could trigger quite a number of  wind slabs, especially near peaks. These slabs were generally small but two spontaneous starts slightly larger were reported around 2400 m.

Under the action of strong winds and small snowfall in the night from Tuesday to Wednesday will form fragile slabs well enough in many slopes greater than 1500 m. These slabs are of variable thickness, they can in places, in the areas of accumulation of snow by the wind, carry a thick snow fairly large (over 50 cm). Given the strong gale announced, the risk of avalanche slabs with the passage of a single skier may involve steep ridges far.

TREND LATER RISK:
Thursday, the risk will be stationary.

Meteo-France updates this newsletter everyday at 16h or sooner if conditions warrant.

Chamonix and Italy off piste updates from Louise at Mountaingirl

Skied the Toule glacier from Helbronner Italy yesterday.. very wind affected and difficult crust to mid station, pockets of powder below; Then skied Vallee Blanche from Helbronner into Chamonix - again hard crust for most of the route, with powder just at last bit before hitting the flats. Lots of slab instability on the top long high traverse above the biggest crevasses which took a lot of care to pass through. Saw lots of wind scouring on grand and petit envers blowing from southwest (recent wind from northwest before that) - some wind loading action to be found up there. Today is due to snow again and we have sore legs from the 40 km of crust, so resting up today. Louise from Mountaingirl

Avalanche bulletin and weather forecast Haute Savoie

This avalanche translation of the Meteo France avalanche bulletin is produced mainly through an automated translation tool.  Please use it in conjunction with the French bulletin found at the above link.

N74130111
SNOW AND AVALANCHE BULLETIN FOR HAUTE SAVOIE
(VALID OFF OF OPEN AND MARKED RUNS)
PREPARED ON SUNDAY JANUARY 13
FOR MONDAY 14 JANUARY

ESTIMATE OF RISK UNTIL MONDAY EVENING:
For all the massive Haute Savoie:
Higher than 1800/2000 m: limited risk (level 2)
Lower than 1800/2000 m: low risk (level 1)

WEATHER OVERVIEW UNTIL MONDAY EVENING:
Sky increasingly hazy, overcast Monday afternoon. Light snowfall after the mid-afternoon. Foehn in the MT-Blanc.

Isothermal 0 1800 m.
Wind around 2000 m: Southwest turbulent 60/80 kph.
Wind around 4000 m: southwest 60 km / h.

SNOW CONDITIONS:
The snow has improved with the new snowfall, but it is still a bit weak, especially at low altitudes.
Towards 1500 m, there is on average a layer of 70/80 cm in the north, 40/50 cm in the south.
At 2000 m, 1m20 snow in northern sector, 80 cm in the south.
Departures on skis in good conditions above 1200 m in the north, it can lower the under layer but is sometimes lacking.

Quality of snow for Monday: on average mountain, it will be a snow often crusted or cardboard, sometimes in small powder-filled bowls. By contrast, crests or bosses are often in ice. In the high mountains, snow is often compacted by the wind.

STABILITY OF SNOW COVER:
Slabs localized, often harsh.
Saturday, 20 to 40 cm of snow fell, which was very slight tamping then undergoes a major north wind Saturday afternoon / night (many small natural breaks). Finally, on Sunday the sun wets this final layer in all slopes south and west between mid-mountain. However, some areas are still potentially dangerous, especially in the cold slopes down passes and ridges.
These slabs can break with the passage of several people, more rarely under the weight of a single person (be wary of broken slopes). The fracture could be more significant at altitudes above 2300/2500 m, especially in the MT-Blanc.
With the southerly wind and Foehn expected Monday, the transport of snow could lead to some natural breaks.

TREND LATER RISK:
Tuesday, risks probably stationary.

Meteo-France updates this newsletter everyday at 16h or sooner if conditions warrant.

Avalanche bulletin and weather forecast Haute Savoie

This avalanche translation of the Meteo France avalanche bulletin is produced mainly through an automated translation tool.  Please use it in conjunction with the French bulletin found at the above link.

N74120111
SNOW AND AVALANCHE BULLETIN FOR HAUTE SAVOIE
(VALID OUT OF OPEN AND MARKED RUNS)
PREPARED ON SATURDAY 12 JANUARY
FOR SUNDAY JANUARY 13
ESTIMATE OF RISK UNTIL SUNDAY EVENING:
For the massive Haute Savoie: marked risk (level 3)

WEATHER OVERVIEW UNTIL SUNDAY EVENING:
Return of the beautiful sun on Sunday, cold in the early morning, much milder in the afternoon, it will then almost warm in the sun. Trend Foehn in the afternoon to Mont Blanc.

Isothermal 0 2400 m.
Wind around 2000 m: North-East 30/40 kph this Sunday night decreasing sharply turning south.
Wind around 4000 m: 30 north-east then decreasing.

SNOW CONDITIONS:
The snow has improved with the new snowfall, but there is still a little weak at low altitude. It is quite average for a mid-January above 1,500 m.
Towards 1500 m, we can measure this Saturday a layer of 60/80 cm in the north, 40/50 cm in the south.
A 2000 m, 1m20 snow in northern sector, 70/80 cm in the south.
Ski departures in good conditions above 1200 m in the north, it can lower the under layer but is sometimes lacking.

Quality of snow for Sunday: the layer of snow, thick 20 to 35 cm depending on the altitude, will be snow, but was blown and cardboard in areas prone to bise northeast. This powdery snow is generally hard and regelé based on the average mountain.
In the south-east slopes to the southwest, snow will increase during the day, with the sun while humidifying itself.

STABILITY OF SNOW COVER: Some fragile slabs and natural activity with the sun.

Fresh snow will be a little brewed by the wind last night before taking a blow to warm in the afternoon in the hills and the sun.

Sunday, we guard the presence of fragile slabs scattered in fresh snow slabs most often formed by the bise that night. These slabs will be present possible rather with the approach of peak, and more generally where the snow was windy settle. The passage of a skier could be sufficient to destabilize such a slab. On the other hand, in a sunny slope little mid-mountain, a local skier could trigger an avalanche of small to medium sized, snow more or less by cutting powdery slope if it is steep, but the risk is quite localized.

Throughout the day, after several hours of sunshine, initially in the south-east slopes then south and southwest in the afternoon, avalanches of snow was heavier and wetter trigger spontaneously in steep slopes, especially at near rocky areas. One must therefore avoid these slopes to hot hours, as a possible avalanche might take a little more volume over the route.

TREND LATER RISK:
Monday, the risk of avalanche is expected to be generally declining, with a risk of wind slabs.
Meteo-France updates this newsletter everyday at 16h or sooner if conditions warrant.

Avalanche bulletin and weather forecast Haute Savoie

This avalanche translation of the Meteo France avalanche bulletin is produced mainly through an automated translation tool.  Please use it in conjunction with the French bulletin found at the above link.

N74100111
BULLETIN FOR ESTIMATING THE RISK OF AVALANCHES
FOR HAUTE SAVOIE
Valid off marked and open trails
FOR FRIDAY 11 JANUARY 2008
(Drafted Thursday, January 10)

ESTIMATE OF RISK UNTIL FRIDAY EVENING:
In the Mont Blanc at more than 2200 m: limited risk (level 2) upgrade to a marked risk (level 3) throughout the day.
In the Mont Blanc at less than 2200 m, Terminals / Aravis and Chablais: low risk (level 1) that evolves limited risk (level 2) based on a rise in temperature and sun exposure.

WEATHER OVERVIEW UNTIL FRIDAY EVENING:
The sun will veil high clouds throughout the day in a soft and windy environment.
A strong wind blowing Foehn near Mont Blanc.

Isothermal 0 2200 2400 m.
Wind around 2000 m: south to southwest turbulent, 50 and 70 km / h.
Wind around 4000 m: south to southwest 70 and 100 km / h.

SNOW CONDITIONS:
The snowpack, which was mainly formed in the first half of December, has undergone multiple episodes of strong winds and a big rise in temperature last Monday accompanied by rain backed up to 2400 m on préalpes, 2000/2200 m in the Mt Blanc .
Given the recent heavy rains, on average in the mountain and valley bottoms, the snow has been shrinking so that it is now a little lower than normal below 1600/1800 m altitude. By contrast, over 1800/2000 m, it is still excellent.

The thicknesses vary widely: ridges and bumps mid-mountain sometimes dismantled, and conversely the bowls remain quite snowy.
Skiing or snowshoeing to toe made at 1200 m, 1000 m at its lowest.
Towards 1500 m, we can measure an average of 25 to 50 cm of snow, and about 2500 m around 1.50m.

Quality of snow for Friday: less than 2500 m on Chablais / bollards and Aravis, in the 2000/2200 m Mont Blanc, the snow will crust, sometimes quite hard in the first part of the morning below 1800 meters. Then throughout the day, and rise in temperature, Foehn winds ramollira snow surface by wetting, especially in the southern slopes.
Fairly difficult conditions for skiing.
In the high mountains, the snow recently in the range of 40 to 60 cm, will be even worked by winds from south-west to south dominant, with a surface condition rapidly changing, with many areas of snow compacted and hard.

STABILITY OF SNOW COVER:
Formations of new slabs in the Mont Blanc.
The snowpack present weaknesses in some places in this mountain over 2200 meters. Indeed, new slabs will form as a result of recent transport snow by the wind Foehn turbulent, especially in the vicinity of the mountain passes and ridges.
Slabs liable to break under the weight of a skier (s).

Elsewhere, the snowpack will be more stable, at least in the morning, on bollards / Aravis and Chablais and less than 2200 m in the Mt Blanc. Then throughout the afternoon, a few substantive heavy and wet snow slabs will bring any snow to the ground, especially on steep slopes not served in the sun.
In addition, there will remain a small probability of hard slabs on the last slope under the highest peaks in the Aravis and Chablais, somewhat northeast, east and west.

TREND LATER RISK:
Stationary risk.

Meteo-France updates this newsletter everyday at 16h or sooner if conditions warrant.

Avalanche bulletin and weather forecast Haute Savoie

This avalanche translation of the Meteo France avalanche bulletin is produced mainly through an automated translation tool.  Please use it in conjunction with the French bulletin found at the above link.

N74090111
BULLETIN FOR ESTIMATING THE RISK OF AVALANCHES
FOR HAUTE SAVOIE
Valid off marked and open trails
FOR THURSDAY 10 JANUARY 2008
(Drafted Wednesday, January 9)

ESTIMATE OF RISK UNTIL THURSDAY EVENING:
In the Mt-Blanc to over 2200 m: limited risk (level 2).
Mt Blanc lower than 2200 m, Aravis and Chablais: low risk (level 1).

WEATHER OVERVIEW UNTIL THURSDAY EVENING:
Mostly sunny weather, rather mild on the southern slopes of average mountains.

Isothermal 0 C 2000 2200 m.
Wind around 2000 m: southwest 20 to 40 km / h.
Wind around 4000 m: West to southwest 50 to 60 km / h.

SNOW CONDITIONS:
The snowpack, which was mainly formed in the first half of December, has undergone multiple episodes of strong winds and a big rise in temperature last Monday accompanied by rain backed up to 2400 m on préalpes, 2000/2200 m in the Mt Blanc.
Given the recent heavy rains, on average in the mountain and valley bottoms,
The snow has been shrinking so that it is now a little lower than normal below 1600/1800 m altitude. By contrast, over 1800/2000 m, it is still excellent.

The thicknesses vary widely: ridges and bumps mid-mountain are sometimes dismantled, and conversely the bowls remain quite snowy.
Departures skis or snowshoes to toe made to 1200 m, 1000 m at its lowest.
Towards 1500 m, we can measure an average of 25 to 50 cm of snow, and about 2500 m around 1.50m.

Quality of snow for Thursday: less than 2500 m on Chablais / bollards and Aravis, in the 2000/2200 m MTBlanc, snow will crust even lasts below 1800 meters. Conditions are therefore quite difficult for skiing.
In the high mountains, the snow cover of the recent order of 30 to 60 cm, was often worked by the westerly winds resulting in a surface condition rapidly changing, with many areas of compacted snow.

STABILITY OF SNOW COVER:
A few slabs in the MT-Blanc.
The snowpack may present some weaknesses in this mountain over 2200 metres. Some slabs are probably in place, and others will be formed in the vicinity of the mountain passes and ridges. Slabs rather sensitive to heavy surcharges as a group and localized in areas sheltered cold high winds.

Elsewhere, the mantle remains generally well stabilized on préalpes, and less than 2200 m in the Mt Blanc. However, it remains a small probability of hard slabs in the highest peaks Aravis and Chablais, or the possible start of a bottom slab instead Thursday night in a steep slope area in the south to southwest.

TREND LATER RISK:
Stationary risk.

Meteo-France updates this newsletter everyday at 16h or sooner if conditions warrant.

Avalanche bulletin and weather forecast Haute Savoie

This avalanche translation of the Meteo France avalanche bulletin is produced mainly through an automated translation tool. Please use it in conjunction with the French bulletin found at the above link.

N74080111
SNOW AND AVALANCHE BULLETIN FOR HAUTE SAVOIE
(VALID OFF OF OPEN AND TRACKED RUNS)
PREPARED ON TUESDAY JANUARY 8
FOR WEDNESDAY JANUARY 9

ESTIMATE OF RISK UNTIL WEDNESDAY EVENING:
Mt Blanc higher than 2200 m: limited risk (level 2)
Mt Blanc lower than 2200 m, Aravis and Chablais: low risk (level 1)

WEATHER OVERVIEW UNTIL WEDNESDAY EVENING:
Heaven veiled, a little thicker Wednesday afternoon. Maximum temperature at 1500 m: +4 dg.
Foehn in the MT-Blanc.
Isothermal 0 2300 1800 m.
Wind around 2000 m: Southwest 20/40 km / h, more turbulent night in the 30/50 km / h.
Wind around 4000 m: West to southwest 40/60 km / h.

SNOW CONDITIONS:
The snowpack, which was mainly made up from the first half of December has undergone several episodes of strong winds and a redoux until about 2500 m yesterday Monday, 2000 m in the MT-Blanc. The thicknesses are highly variable, ridges and bumps mid-mountain are sometimes dismantled, unlike the snowy bowls.
Departures skis or snowshoes to toe made to 1200 m, 1000 m at its lowest.
There are an average of 20 to 1500 m to 40 cm of snow, circa 2500 m around 1.50m.

Quality of snow for Wednesday: until around 2500 m, except in the eastern and northern slopes in the MTBlanc, snow will crust even lasts until about 1800 metres. Conditions therefore quite difficult for skiing.
In the high mountains, the layer of powder was 30 to 60 cm but often worked by the westerly winds.

STABILITY OF SNOW COVER:
A few slabs in the MT-Blanc.
The snowpack may present some weaknesses in this mountain higher than 2200 meters. Some slabs are probably in place, others will be trained by the Foehn expected. Slabs rather sensitive to heavy surcharges as a group and localized in areas sheltered cold high winds.
Elsewhere, the mantle is stabilized as a whole. There is still a small probability of a slab that lasts under the highest peaks in the Aravis and Chablais, or the start of a bottom slab instead this Tuesday night in a steep slope hot.

TREND LATER RISK:
Risk stationary or rising slightly in the Mt. Blanc.

Meteo-France updates this newsletter everyday at 16h or sooner if conditions warrant.

Avalanche bulletin and weather forecast Haute Savoie

This avalanche translation of the Meteo France avalanche bulletin is produced mainly through an automated translation tool. Please use it in conjunction with the French bulletin found at the above link.

N74070111
SNOW AND AVALANCHE BULLETIN FOR HAUTE SAVOIE
(VALID OFF OF OPEN AND MARKED RUNS)
PREPARED ON MONDAY JANUARY 7
FOR TUESDAY JANUARY 8

ESTIMATE OF RISK UNTIL TUESDAY EVENING:
All massive Haute-Savoie:
Higher than 2200/2300 m: marked risk (level 3),
Lower than 2200/2300 m: limited risk (level 2).

WEATHER OVERVIEW UNTIL TUESDAY EVENING:
Dry weather and sunny. Maximum temperature at 1500 m: +3 GD.
Isothermal 0 2200 m.
Wind at 2000 m: low in the morning and then southwest 30 km / h.
Wind at 4000 m: West 40 km / h.

SNOW CONDITIONS:
They remain valid for an early January. The rain has washed departures race but thicknesses increase in the high mountains. There are 20 to 40 cm of snow around 1500 m, 1.50 m at an average of 2500 m with significant irregularities due to the wind, the peaks are sometimes dismantled and bowls well charged.

Quality of snow Tuesday: below 1600/1800 m, snow remains saturated with water crust on the surface, not easy to ski. Between 1800 and 2400 m, regel night consolidates snow, it softens a little sun in the afternoon. In the high mountains, the layer of powder is around 30 to 60 cm but there are also slopes worked by westerly winds.

STABILITY OF SNOW COVER:
Slabs especially between 2200 and 2700 meters.

More low as 2000/2300 m, the rain has dampened the snow depth. The subjected night consolidates all and gives a fairly stable snowpack. However, few substantive slabs are still possible, taking the snow to the ground in steep and grassy field, particularly in the south and west directions.

It's in the 2200 tranche at about 2700 m is needed most to be wary. The snowfall in recent days based on former angular grains without cohesion, especially in faces northwest, north and east. Slabs from 30 to 50 cm thick are liable to break to the passage of one or more skiers, not only in the vicinity of the peaks but also in the midst of the slopes.

In the high mountains, deep snow settles recent gradually. The westerly winds blew violently and formed slabs more or less harsh, particularly in the areas of deposit under the moguls and slope failures. Hear crackles deaf "whoumpfs" must reflect an attitude of caution especially in steep terrain.

TREND FOR WEDNESDAY:
Risk gradually declines, but few new slabs are formed with a little Fœhn in the Mont Blanc massif.
Meteo-France updates this newsletter everyday at 16h or sooner if conditions warrant.

Avalanche bulletin and weather forecast Haute Savoie

This avalanche translation of the Meteo France avalanche bulletin is produced mainly through an automated translation tool. Please use it in conjunction with the French bulletin found at the above link.

N74060111
SNOW AND AVALANCHE BULLETIN - HAUTE SAVOIE
(VALID OFF OF OPEN AND TRACKED RUNS)
PREPARED ON SUNDAY JANUARY 6
FOR MONDAY JANUARY 7

ESTIMATE OF RISK UNTIL MONDAY EVENING:
All massive Haute-Savoie:
Lower than 1800/2000 m: marked risk (level 3) in the night of Sunday to Monday,
Evolves limited risk (level 2) Monday,
Higher than 1800/2000 m: high risk (level 4).

WEATHER OVERVIEW UNTIL MONDAY EVENING:
Turbulent temperatures may bring rainfall in the night of Sunday to Monday, then gradually lull during Monday morning. Limit rain/snow towards 2000 2200 m. Quantity awaited 2500 m: 30/40 cm of snow with strong winds. Back warm Monday afternoon.
Isothermal 0 DG: Towards the 2200 m and 1700 m night Monday during the day.
Wind at 2000 m: Southwest 60 then west to 30 km / h.
Wind at 4000 m: West 90 km / h.

SNOW CONDITIONS:
They are in line with averages for early January.  The skiing limit starts at 1000 m in the north, 1200 to 1500 m in the south. Total snow thickness: 30 to 60 cm at 1500 m, 1.50 m average at 2500 m but with significant irregularities due to the wind, the peaks are sometimes dismantled and bowls and very charged.

Quality of snow on Monday, after the rains of the night, the snow is wet lower than 2000 m and wet / heavy until 2200/2300 m. At higher altitudes, there is a thick layer of snow, except in the slopes exposed to winds from the southwest and snow surface is likely to be compacted. In many mountain areas are hard by the wind and heavy accumulations are likely in the bowls situated north to east.

STABILITY OF SNOW COVER: piègeux with instabilities difficult to detect.

On the night until Monday morning, with rainfall, avalanches begin spontaneously. On the one hand, the rain is causing surface flows but also avalanches carrying snow to the ground, particularly between 1500 and 2000 m on the fairly steep slopes that have not yet been served. On the other hand, at higher altitudes, the significant accumulation of snow avalanches causes powdery medium size in steep areas and hallways lined north-west, north and east. These risks of spontaneous departures gradually fade Monday over of course of the morning.

By contrast, the risk of an avalanche with the passage of a skier remains present throughout the day on Monday. Fresh, windy snow fell twice this weekend around 40 to 70 cm, it is based on the old snow without cohesion composed of angular grains. The risk of breaking a slab is mainly between 1800 and 2800 m in north-west, north and east. Distrust not only the usual places behind the crests and breaks under the slopes, but also in the midst of slopes where passage of a single skier could trigger a brittle slab in the powdery snow. Under these circumstances, one could focus on the trail and not too steep slopes facing south instead.

Finally, in the absence subjected to medium altitude, it is necessary to be wary of snow bridges and cornices that might be weakened.

TREND FOR TUESDAY: risk declining but persistent slabs.
Meteo-France updates this newsletter everyday at 16h or sooner if conditions warrant.

Avalanche bulletin and weather forecast Haute Savoie

This avalanche translation of the Meteo France avalanche bulletin is produced mainly through an automated translation tool. Please use it in conjunction with the French bulletin found at the above link.

N74050111
SNOW AND AVALANCHE BULLETIN FOR HAUTE SAVOIE
(VALID OFF OF OPEN AND MARKED RUNS)
PREPARED ON SATURDAY JANUARY 5
FOR SUNDAY JANUARY 6

ESTIMATE OF RISK UNTIL SUNDAY EVENING: All Haute-Savoie masses:
Less than 1600 m, marked risk (level 3) on the night from Saturday to Sunday,
Evolves limited risk (level 2) Sunday.
ATTENTION over 1600/1800 m, it moves closer to a high risk (level 4) tonight and Sunday.

WEATHER OVERVIEW UNTIL SUNDAY EVENING:
From Saturday to Sunday night, the weather will be cloudy with showers supported in the valleys and mountains on average (rain/snow limit to 1400 m, 1800 m temporarily in the middle of the night). At more than 1800/2000 m, heavy snowfalls, very blown, will deposit in the mountains (of the mountains: 30/40 cm of snow on average, with large variations in thickness in some places in view of a strong wind from the southwest).
Sunday, a lot of clouds in the first part of the morning but the rains cease gradually. Then during the day, clouds should break for a little glimpse of some thinning, especially around mid-day and early afternoon.
Back to moderate rains in the night of Sunday to Monday (limited rain / snow up to 2000 m).
Isothermal 0 deg: temporarily at 2000 m on Saturday night, then Sunday 1500/1600 m.
Wind at 2000 m: Southwest, 50/80 kph tonight, then 15/30 km / h Sunday.
Wind at 4000 m: West to southwest tonight, turning northwest Sunday, 80/100 km / h.

SNOW CONDITIONS:
They are in line with normal for early January. The skiable limit is 1000 m in the north, 1200 to 1500 m in southern slope depending on the steepness of slopes. The snow is intermittent altitude following several episodes of strong wind. The troughs are generally well blocked but the peaks are sometimes dismantled.  Attention, the sweetness weakens the snow bridges on the lower parts of the glaciers.
Quality of snow for Sunday after heavy rains the night, the snowpack is wet below 1600 m, and wet the surface up to 1800 m. At more than 1800/2000 m, on 30/40 in skiera cm of snow on more or less blown / cardboard / compacted places, especially in the area passes and peaks and high mountain.

STABILITY OF SNOW COVER:
ATTENTION, ABOVE 1600/1800 M, THE RISK OF ACCIDENTAL AVALANCHES WILL IN STRONG ON MANY SLOPES.
From Saturday to Sunday night, less than 1600/1800 m, slides and avalanches and heavy wet snow will develop in the course in many steep slopes, sometimes taking entire thickness of snow on the ground in the form of slabs of substance.
Then Sunday during the day, natural avalanche activity will be more limited, but not zero.
Higher above 1600/1800 m, in addition to beautiful cornices on the peaks, the broad base of snow more or less blown, very badly to accrochera under layers of snow often composed without cohesion (angular grains: powdery snow formed during periods of good weather in early or mid-winter).
Suddenly, the slabs, sometimes large widths, more or less hard or brittle depending on location, will trigger naturally in many steep slopes during snow of the night, especially under the weight of a skier (s) during the day Sunday. ATTENTION could trigger slabs friable powdery appearance on the surface, in areas as unexpected and steep forests, clearings, or simple slope, or in the middle of a slope far cry from the windy ridges sommitales (locally could even hear noises / crackles deaf within the mantle, ... great sign of instability).
However, the risk of avalanche will be lower in the off-piste often skied, virtually groomed even in recent days, even some of the great classics but attention to the walks to nearby slopes less skied. There will also be a little less risk in the southern slopes, insofar as the layers are probably more healthy parties composed of spring snow. Inside the Mont Blanc, the risk of avalanche is expected to be less "tricky" because the broad base of snow blown based on under layers often compacted by a recent episode of strong Foehn.
TREND LATER RISK: risk quasi-stationary.