Hakuba Now daily snow and weather - Monday 15th January 2007

Hakuba Now (Archive Report)

Independent and trustworthy daily snow and weather reports from Hakuba (Nagano), Japan
ARCHIVE REPORT: Posted at 9:27am on Monday 15th January 2007
Current weather conditions
Observed fresh snowfall
weather condition
Few clouds
Base temp:
0°C

Top temp:
0°C
Precipitation Wind Visibility
precipitation condition
-
wind condition
Winds are light from the West
Excellent
This report
Monday 15th January 2007, 9:27am
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Archive report: Posted at 9:27am on Monday 15th January 2007
The latest Hakuba Now report can be found here


It's a tad cool and clearish this morning as result of a significant high pressure ridge pushing in from Siberia. This morning there was snow being swirled along the summit ridge of Korenege Yama (2,769 m a.s.l.). There is a weak crust (valley bottom i.e. 800 m a.s.l.) where the sun touched the snow yesterday (high temperature of 4C). Yesterday's field investigations found this to be so up to 1,900 m but the northern exposures seem to be non-crusty down to the valley bottom.
^^^^^^^^^^^^^^^^^^^^^^^^
The Hira Kawa Snow Study Plot (830m a.s.l.) the 0700 hr. reading is:
Sky: Overcast
Temperature: Present: -6.9 C
Maximum: 4 C
Minimum: -8 C
Wind: very light north
Precipitation: nil
Barometer and trend: 926 hPa and rising slowly
Height of new snow in 24 hours (HN24): trace
Total depth of snowpack (HS): 69 cm
Foot penetration: 23 cm
Surface: surface hoar, size 2mm
Crust: 1 cm
^^^^^^^^^^^^^^^^^^^^^^^^
Hazard:
Above Tree Line: Moderate (see below)

At Tree Line: Moderate

Below Tree Line: Moderate


Travel Advisory:
The snowpack continues to settle in the lower elevations (HS 73 yesterday to HS 69 today) with a similiar situation at tree line. Yesterday's relatively good visibility for the first time in several days allowed observation of a large fracture line on a south-east exposure of Shirouma Dake just below ridge line (size 3 avalanche). Snowpack investigations at 1,900 m a.s.l. showed that the consistent light precipitation and moderate winds have created a 20 cm layer that is bonding poorly to a faceting melt-freeze layer. Large, tensioned alpine features in aggressive terrain with the recent loading should be treated with suspicion.

Yesterday's warm afternoon temperatures and relatively clear skies warmed the snow and so formed a surface crust although even at valley bottom the truly shaded snow is not crusted but the lower you go in elevation the more the pure air temperature affected the snow.
If you do travel outside of the controlled area, be aware of the potential of "remote triggering" of avalanches. The hazard is "Moderate" above tree line, but just so.

This morning there were surface hoar size 2 mm crystals observed on the surface at the Hira Kawa Snow Study Plot.

Archive report: Posted at 9:27am on Monday 15th January 2007
The latest Hakuba Now report can be found here

Hakuba Now ski lift operation notes:

Most lifts at all ski areas are operating. \r\nNota Bene: a phone call to Mine Gata Lift Company illicited no response.

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