Hakuba Now daily snow and weather - Sunday 25th February 2007

Hakuba Now (Archive Report)

Independent and trustworthy daily snow and weather reports from Hakuba & Otari region, Japan
ARCHIVE REPORT: Posted at 9:43am on Sunday 25th February 2007
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Sunday 25th February 2007, 9:43am
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Archive report: Posted at 9:43am on Sunday 25th February 2007
The latest Hakuba Now report can be found here

Clear, cold cobalt blue. There was a bit of angel dandruff on the crust this morning in the valley bottom. Yesterday it was flurrying lightly in the higher elevations. At noon there was a delicate frosting of some 6 cm on the shrubbery at the 1,850 m a.s.l. Grat Quad top station. There was a solid freeze overnight as the sky cleared sometime around 2100 hrs. So, the piste is bone hard and should remain firm until the gentle rays of the sun begin their softening magic. Be aware that the snow rendered slushy (at the lower elevations) by the direct sunshine can be frozen hard in the very nearby shade. Be aware, ski with care. Also the previous cautionary notes concerning snow-melt generated hazards continues to be valid.

The upper elevation piste on Happo One on the northern exposure was quite fine (Kurobishi was just fine down to 1,200 m a.s.l. until noon anyway). The more east and southerly exposures were a bit more affected by the current series of melt-freeze cycles. Try the edge of the runs for more loose snow.

There is some precipitation in the forecast toward the end of the week. But that is just a forecast.

The Hira Kawa Snow Study Plot (830m a.s.l.) 0700 hr. reading is:

Sky: Clear
Temperature: Present: -8.0 C
Maximum: 4.0 C
Minimum: -8.0 C
Wind at surface: Light from west
Winds aloft: There were no clouds nor moving snow to gauge by
Barometer and trend: 925 hPa and rising
Height of new snow in 24 hours (HN24): Trace (less than 1 cm)
Total depth of snowpack (HS): 63 cm
Foot penetration: 1 cm
Surface: New snow, size 2.5 mm with minor faceting
Density of surface snow: not measured
Crust: 18 cm
Cloud ceiling: Unlimited


Above tree line: Moderate

Tree line: Moderate

Below tree line: Moderate

N.B. . Very good crust development overnight. The clear sky will allow the sun affected snow to change rapidly. The lower elevation snow is isothermal below the crust. At what elevation that this is the case will vary with aspect (i.e.: higher on the south and lower on the north)

Travel Advisory:
A clear cold (by local standards) morning with no evidence of upper elevation significant winds (it may be that there is just no snow left to blow around). The recrystallization around the buried melt freeze crusts has continued with the cool air temperatures. I will be in the field today and will attempt to have a look at this situation. Even though the sun shines and the surface seems solid, basic mountaineering practises of going from safe point to safe safe point, always watching your team mates, and avoiding being in a position such that if the worst unforeseen event takes place you will not be swept into a "terrain trap" (or over a cliff and then slammed into trees and to be finally buried in an open creek under tons of debris).

Archive report: Posted at 9:43am on Sunday 25th February 2007
The latest Hakuba Now report can be found here

Hakuba Now ski lift operation notes:

All resorts operating.

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