Hakuba Now daily snow and weather - Sunday 24th January 2010

Hakuba Now (Archive Report)

Independent and trustworthy daily snow and weather reports from Hakuba (Nagano), Japan
ARCHIVE REPORT: Posted at 9:19am on Sunday 24th January 2010
Current weather conditions
Observed fresh snowfall
weather condition
Partly cloudy
Base temp:
0°C

Top temp:
0°C
Precipitation Wind Visibility
precipitation condition
-
wind condition
Light from the NE
Variable in the AM, clear by late morning.
This report
Sunday 24th January 2010, 9:19am
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Archive report: Posted at 9:19am on Sunday 24th January 2010
The latest Hakuba Now report can be found here

This morning Hakuba will have a mix of sunshine and cloud, as the day warms up that cloud will dissipate. There was a light dusting of new snow last night, on the top of the mountain up to 20cm of new snow fell. Finally getting rid of the crusty conditions that the rain left us a few days ago.

You can expect powder, chopped powder and crud as well as smooth groomers out there today on the hill. On the top of Happo this morning it was a cool -6, which is a lot warmer than yesterday. Temperatures are set to stay low over the next few days, keeping the new snow that has fallen in good condition.

The forecast is predicting light snow or possibly even drizzle tomorrow afternoon and winds picking up strength as they come in from the north east.

Avalanche information:

Well, we did receive that mixed bag that was forecasted; Rain starting the evening of the 20th this rain fell on all ski areas to the top lifts from 18:00 100120 to 09:00 100121 and also to 2400 metres for a short period of this time and sleet or wet snow before the freezing level came down to the valley floor by 10:00 100121 to put rapid loading on the snow pack on all aspects at all elevations. This was followed by strong NW winds and rapidly cooling temperatures and continued snow. The rain penetrated anywhere from 20 cm to 40 cm into the snowpack depending on elevation and aspect.

There were reports of naturals from steep low elevation terrain around cornices and glide cracks as well as a reported skier triggered slab avalanche below tree line, 1100m, Happo One Ski Resort north aspect. Size 2, 100cm crown, wide slab propagation, 100 metre plus length of slide, 200cm deposit at the toe, non burial. Suspect weakness was due to rapid increased load of rain on the well bonded past Stm Snow of 100110~100115 over riding persistent buried surface hoar / facets.

The rain layer has now had time to freeze on the surface in to a very strong melt freeze crust, however, there are still some areas with remaining wet grains under the crust. These melt forms will stay wet or moist in lower elevations until temperatures remain cold enough to freeze through the whole pack.

The past 3 days have brought 30cm in the valley and more at elevation along with strong winds in the Alpine and at tree line that has deposited greater amounts of snow on the East and South East lee slopes. There are now areas of wind slab and exposed rain crust; extreme spacial variation.

Travel advisory:

Take due care in avalanche terrain as new snow accumulates and stability decreases through wind transport and the creation of slabs. Watch out for unsupported steep cross loaded slopes and leading in from shallow snow areas where the wind slab will be more reactive and easier to trigger. Be aware that Cornices are once again growing and will be tender. Stay away from cornices all together. And remember to travel with partners in the backcountry.

Hazard:

Alpine: Considerable
TreeLine: Considerable
Below Tree Line: Considerable

Official resort snow depths on 24th Jan 10:

Happo-one:
110cm (Shirakaba)
120cm (Sakka/Kitaone)
290cm (Kurobishi/Usagidaira)
Hakuba Goryu:
155cm (Iimori)
170cm (Toomi)
340cm (Alps daira)
Hakuba 47:
225cm
Tsugaike Kogen:
170cm (Kanenonaruoka)
135cm (Maruyama)
380cm (Tsuganomori)
Hakuba Iwatake:
170cm (Shomen)
270cm (Sancho)
Sun Alpina Sanosaka:
160cm
Hakuba Minekata:
160cm

Archive report: Posted at 9:19am on Sunday 24th January 2010
The latest Hakuba Now report can be found here

Hakuba Now ski lift operation notes:

Please see main report for details.

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