 Poster: A snowHead
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@RonWeltyPT, potentially but too far out in forecasting terms to worry about it, it will likely change frequently. Chamonix is also fairly spread out so some higher lifts be be affected differently to lower ones, places further down the valley etc
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 Obviously A snowHead isn't a real person
Obviously A snowHead isn't a real person
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Here’s the SLF outlook for Switzerland. [my bold]
“Weather forecast through Sunday, 08.01.2023
On Saturday night, cloud cover will move in. During the daytime hours on Sunday, skies will be heavily overcast for the most part. Precipitation is anticipated in the western regions during the morning hours in particular, in the southern regions over the course of the daytime. In the foehn-impacted regions of the central and eastern sectors of the northern flank of the Alps and in northern Grisons, it will remain predominantly dry.
Fresh snow
The snowfall level in the western regions lies between 1200 and 1600 m, in the southern regions between 1000 and 1200 m. Above those altitudes, the following amounts of fresh snow are anticipated:
- northern and furthermost western parts of Lower Valais, central sector of the southern flank of the Alps, Val Bregaglia, Val Poschiavo: 10 to 15 cm;
- in the remaining regions of Switzerland: only a few centimetres; or else it will remain dry.
Temperature
At midday at 2000 m, between -1 °C in the northern regions and -3 °C in the southern regions.
Wind
Winds in the mountains will be southwesterly, blowing at moderate to strong velocity;
in the Alpine valleys, a moderate-strength southerly foehn wind will be blowing.
Outlook through Tuesday, 10.01.2023
Monday
Skies will be heavily overcast for the most part, accompanied by precipitation. Only in the central and southern parts of the Ticino will it be partly sunny. Most of the snowfall is anticipated in the western sector of the northern flank of the Alps and in the Lower Valais, at 30 to 50 cm. The snowfall level will lie at 1000 m. Winds are expected to shift from southwesterly to northwesterly and continue blowing at strong velocity in the mountains. The avalanche danger levels will increase significantly over far-reaching areas.
Tuesday
The major thrust of precipitation is expected to move into other regions: from the eastern Bernese Oberland into the Glarus Alps where, presumably, 20 to 40 cm of fresh fallen snow can be expected. The snowfall level in the northern regions will lie below 1000 m, in the southern regions at 1200 m. During the daytime hours there will be an interim in precipitation, with bright intervals in the northern regions more than anywhere else. Avalanche danger levels are expected to increase a further notch.”
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 Well, the person's real but it's just a made up name, see?
Well, the person's real but it's just a made up name, see?
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@RonWeltyPT, heavy snowfall (30-50cm+) and strong winds can shut some lifts for a day or two afterwards, if that snowfall lasts for several days it can cause longer and more substantial closures. The snowfall next week looks significant at altitude, but in itself not likely to limit lifts the following week. As for weather the week you are planning to be out there, it’s too soon to tell as it’s over two weeks away.
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 You need to Login to know who's really who.
You need to Login to know who's really who.
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Thank you all
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 Anyway, snowHeads is much more fun if you do.
Anyway, snowHeads is much more fun if you do.
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Medium term (7 to 10 days) synoptics are looking pretty positive. Models seem to be agreeing on a significant Arctic high building from day 6/7 which pushes the NW Europe trough, which is currently battering Scotland, down into alpine regions. This should result in NW winds, cools temps and a reasonable amount of precipitation.
I would post pretty pictures but haven't figured out how to do it, if anyone can direct me to a thread which explains how to do it I will try and learn!
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 You'll need to Register first of course.
You'll need to Register first of course.
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@davidof, if that's referring to Sunday only, then it's a bit misleading as much of the snowfall for lower levels is forecast for Monday.
If it's referring to Sunday and Monday, then those snow levels are for the start of the precipitation, after which it gets colder.
Last edited by Then you can post your own questions or snow reports... on Sat 7-01-23 18:25; edited 1 time in total
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@scottishandy, Insert image: [img]http://image_url[/img] (alt+p)
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 You'll get to see more forums and be part of the best ski club on the net.
You'll get to see more forums and be part of the best ski club on the net.
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@denfinella, where are you referring to? Freezing level 1700m tues/Wed in morzine from what I’ve seen
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 snowHeads are a friendly bunch.
snowHeads are a friendly bunch.
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@kitenski, temperatures are fluctuating quite a bit as you can see on the ensemble charts. At the start of the snowfall they are still mild in the west before dipping as the main snowfall arrives on Monday. They then move up again through Tuesday into Wednesday though still with substantial snow at altitude. That said Tuesday and Wednesday could still shift about a bit. Further east snowfall lower (still pretty respectable in many places), but so too are temperatures.
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 And love to help out and answer questions and of course, read each other's snow reports.
And love to help out and answer questions and of course, read each other's snow reports.
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@scottishandy, tada!
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From UKMO, partly just to check my posting power.
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 You know it makes sense.
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@kitenski, I was talking about snow level, not freezing level. So even a freezing level of 1700m would usually mean a snow level of 1500m or below. Davidof listed the snow level as 1800m for the Chablais region, which includes most or all of the Portes du Soleil.
Secondly, I was referring to the Sunday to Monday snow event, not beyond that. Monday is forecast to be colder than Tuesday / Wednesday.
Basically I was saying that Metro France's temperature levels seemed pessimistic, but I'm not sure if that was because Davidof quoted them rather selectively, or not.
Will put more detail in the Portes du Soleil thread as it's a bit too specific for this one.
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 Otherwise you'll just go on seeing the one name:
Otherwise you'll just go on seeing the one name:
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| nozawaonsen wrote: |
| @RonWeltyPT, heavy snowfall (30-50cm+) and strong winds can shut some lifts for a day or two afterwards, if that snowfall lasts for several days it can cause longer and more substantial closures. The snowfall next week looks significant at altitude, but in itself not likely to limit lifts the following week. As for weather the week you are planning to be out there, it’s too soon to tell as it’s over two weeks away. |
Yup, ive been at a resort that closed after heavy snowfall of 50cm+ for safety reasons. Also the next day only had limited runs open as the pistes had to be remarked/bashed which took most of the day.
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 Poster: A snowHead
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So, in 5 days we've gone from
"the season is doomed"
to
"we might have to close because there's too much snow"
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 Obviously A snowHead isn't a real person
Obviously A snowHead isn't a real person
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| denfinella wrote: |
@davidof, if that's referring to Sunday only, then it's a bit misleading as much of the snowfall for lower levels is forecast for Monday.
If it's referring to Sunday and Monday, then those snow levels are for the start of the precipitation, after which it gets colder. |
Twice in my short post I said Sunday.
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 Well, the person's real but it's just a made up name, see?
Well, the person's real but it's just a made up name, see?
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| denfinella wrote: |
@kitenski, I was talking about snow level, not freezing level. So even a freezing level of 1700m would usually mean a snow level of 1500m or below. Davidof listed the snow level as 1800m for the Chablais region, which includes most or all of the Portes du Soleil.
Will put more detail in the Portes du Soleil thread as it's a bit too specific for this one. |
NO I said 1500 meters.
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 You need to Login to know who's really who.
You need to Login to know who's really who.
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@davidof, apologies, I did misread the 1500m line.
OK so you were referring exclusively to Sunday - in which case see my first paragraph. I just think it's a little misleading / pessimistic to only quote freezing levels from the start of a snow event, when the colder weather and heavier snow is forecast to be the following night and day. It's a bit "tabloidy" and doesn't really help anyone except those who are only skiing on Sunday.
Sorry - not wishing to derail this thread any further!
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 Anyway, snowHeads is much more fun if you do.
Anyway, snowHeads is much more fun if you do.
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| denfinella wrote: |
@davidof, apologies, I did misread the 1500m line.
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No problem.
I can't post information I don't have as MF only publish detailed snow levels 24hr ahead. I was very clear it was for Sunday only.
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 You'll need to Register first of course.
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Interestingly ECMs 12z Op run is not a million miles from GFS’s (see 17.17).
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This morning’s GFS op run has flipped mild in FI, though most of the rest of the pack are heading cooler. So uncertainty remains.
Meanwhile back in the near time rain at lower levels in the west to heavy snow tomorrow, with what currently looks like a rain to snow to rain event of Wednesday and Thursday. Saturday looking a bit tricky with possibly the snowline above 2000m, but that’s still a long way out.
Further east, snowfall will be lower so will temperatures. The Arlberg/Paznaun looking like the sweet spot to me with sustained snowfall and low temperatures.
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Showing heavily from 8am in Champagny (1,250m) La Plagne
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 You'll get to see more forums and be part of the best ski club on the net.
You'll get to see more forums and be part of the best ski club on the net.
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@geoffers, nice.
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I'm estimating the snow line above Chamonix at ~1,150-1,200 ... According to a pisteur chum it's lovely up the Grands ... that's where we're going ...
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 snowHeads are a friendly bunch.
snowHeads are a friendly bunch.
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Heavy snow in Tignes at the moment
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 And love to help out and answer questions and of course, read each other's snow reports.
And love to help out and answer questions and of course, read each other's snow reports.
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Latest from Tarentaise Meteo just now for the next two days , looks like the rain snow level will yo yo today . Remember this is for the Tarentaise area , Val , Tignes , Les Arcs, La Rosiere , LaPlagne , 3 V only . Try and see through the google translate .
Forecast for snowy episode:
Sunday :
Precipitation moved slightly in the latest fine settings, and initial precipitation arrived around 6am before stretching since 7am/7:30am this morning.
It snows above 1600/1700m, with already the first cm raised above 1800m.
This episode of snow will be multi-phased with a few moments of rest and precipitation reactivation phases.
The current disturbance is expected to continue until early afternoon, 1pm/14pm depending on sectors with a limit of snowfall still high enough because we will be in the warm heart of the depression.
It will snow on this first part of the episode at about 1500m in elevation, this can vary by 100m depending on the intensity.
In this first phase, the expected cumulative is in the order of 5/10cm above 1800m.
Then a temporary calm down expected between 3 p.m. and 7 p.m.
Rainfall returns from the early evening with intensities that will increase very quickly, a thunderstorm is even possible at the beginning of the evening.
These precipitation will accompany us all night, until dawn, cumulations of rain in the valley will be in the order of 20/30 mm.
Concerning the snowfall limit on this second phase of the episode, early evening it will be 1500m as precipitation arrives then declining quickly to 1200/1300m around midnight then 1000/1100m in the second part of the night, for the r found at the end of the night around 800/900m altitude.
We expect 20cm above 1500m, locally 25cm above 1800m.
10 to 15cm above 1200m and 5cm at 1000m.
Monday :
Temporary calm expected between 8am and 10am before the rapid return of rainfall.
These should accompany us for this last phase of the episode until the next morning, at the end of the night (Monday to Tuesday night).
In this final phase, the longest, the cumulus planned in the valley will be in the order of 15 to 20mm, locally 25mm.
Regarding the snowfall limit, it will be at the return of precipitation around 10h to 700m.
During the afternoon, it will continue to fall towards this altitude, sometimes 600m at the highest intensities.
In the following evening and night, we enter the phase where snow will be the lowest of the episode, it could snow up to 400/500m altitude, very punctually up to 300m.
On this final phase of the episode, we expect 15/20cm above 1500m, locally 25cm above 1800m, 10/15cm above 1100m, 10cm above 800/900m and locally up to 5cm above 600m.
Possible sprinkles up to 400m height.
On this episode the wind will be from the part and will sometimes blow strongly at altitude on the western slopes, some gusts possible up to 60/70km/h, locally 80km/h on exposed ridges and peaks, making conditions sometimes "blizzard" "squats."
Beware of the risk of avalanche that will only grow over the hours.
dessOverall the episode, it could fall to 20/25cm at 1200m, 30/35cm at 1500m, 40/50cm above 1800m and 50/65cm above 2200m.
Join us tonight for the first episode of this episode, however, please feel free to share your photos, videos, observations, footage, etc... for this first phase that is under way on our Tarantaise!
Have a great day everyone!
Romain VIVIANI from Météo Tarentaise
Our partner R’les Arcs la radio station
( www.laradiostation.fr )
⬇Map of possible cumulus interviewed on the ARPEGE model (MeteoCiel), not to be taken lightly)
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| Quote: |
I'm estimating the snow line above Chamonix at ~1,150-1,200 ... According to a pisteur chum it's lovely up the Grands ... that's where we're going ...
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Sounds about right, it's snowing in Argentiere:)
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 You know it makes sense.
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ECM 00z sticking with the program.
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 Otherwise you'll just go on seeing the one name:
Otherwise you'll just go on seeing the one name:
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I love the idea of interviewing cumulus in the valley.
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 Poster: A snowHead
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 Obviously A snowHead isn't a real person
Obviously A snowHead isn't a real person
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| philipb wrote: |
| Quote: |
I'm estimating the snow line above Chamonix at ~1,150-1,200 ... According to a pisteur chum it's lovely up the Grands ... that's where we're going ...
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Sounds about right, it's snowing in Argentiere:) |
raining currently, what height is that lift, 1050m so quite low
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 Well, the person's real but it's just a made up name, see?
Well, the person's real but it's just a made up name, see?
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 You need to Login to know who's really who.
You need to Login to know who's really who.
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ok so wet, we'll see if tomorrow brings a bit more snow.
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 Anyway, snowHeads is much more fun if you do.
Anyway, snowHeads is much more fun if you do.
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's obvious @nozawaonsen..... what you do when sheltering and waiting for the wind to die down a bit. Get the old legs moving. I was too lazy to look up the French original and attempt my own version.
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 You'll need to Register first of course.
You'll need to Register first of course.
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| Quote: |
raining currently, what height is that lift, 1050m so quite low
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Argentiere village is 1250. Just driven down to Chamonix, I'd say it turned to rain at about 1200m.
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Very agreeable up Grands. Off for Sunday lunch at the Cremerie des Aiguilles.
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@under a new name, which will one imagines be very agreeable too.
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 You'll get to see more forums and be part of the best ski club on the net.
You'll get to see more forums and be part of the best ski club on the net.
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| philipb wrote: |
| Quote: |
raining currently, what height is that lift, 1050m so quite low
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Argentiere village is 1250. Just driven down to Chamonix, I'd say it turned to rain at about 1200m. |
Looking at the Cham webcam it looks around those kind of altitudes above the town.
At midday a solid 15cm in the Southern Alps (the place to be) but no idea what altitude. MF said SL at 1200m.
In the Isere 7cm at 2200m but SL is high, around 1800m.
Interior ranges about 5cm and still quite warm as the weather report for the Maurienne said above.
Morzine appeared to have a couple of cms at 1550m on the webcams. (les Raverettes webcam)
2nd round this afternoon. This is how MF sees it
| Quote: |
In the Alps the rains temporarily ease before resuming at the end of the day with a rain-snow limit between 1400 and 1800 m from north to south. The southwest wind increases to 70 to 90 km / h in gusts. The rain-snow limit is around 1800 to 2000 m in the Pyrenees, 1300 to 1500 m in the Massif Central.
Monday
The weather will be unstable. It will snow on most of the massifs between 800 and 1200 m altitude from north to south. A fairly strong to strong west to northwest wind will accompany this agitated weather with gusts up to 70/80 km /h inland.
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Watch out for the avalanche risk on NW to E sector slopes at altitude. Some predictions of 5 to 15cm of snow at 1000m. A meter in high mountains (which sounds high)
Last edited by You'll get to see more forums and be part of the best ski club on the net. on Sun 8-01-23 14:18; edited 1 time in total
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@davidof, great webcam analysis
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