Hakuba Now daily snow and weather - Wednesday 24th January 2007

Hakuba Now (Archive Report)

Independent and trustworthy daily snow and weather reports from Hakuba & Otari region, Japan
ARCHIVE REPORT: Posted at 10:51am on Wednesday 24th January 2007
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Light. from the north-west
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Wednesday 24th January 2007, 10:51am
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Archive report: Posted at 10:51am on Wednesday 24th January 2007
The latest Hakuba Now report can be found here

A grey sky over the Hime Kawa valley was evident in the first thin light of dawn. There is no new snow and the winds in the alpine yesterday are reported to have been "strong from the north-west". The green and easier blue runs benefited from the recent new snow but the steeper piste is a tad rough.


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

Sky: Overcast
Temperature: Present: -5.5 C
Maximum: 3.0 C
Minimum: -7.0 C
Wind: Light from the west
Winds aloft: Moderate from the north-west
Precipitation: Nil
Barometer and trend: 920 hPa and righty
Height of new snow in 24 hours (HN24): 0 cm
Total depth of snowpack (HS): 66 cm
Foot penetration: 12 cm
Surface: new snow, size 3.0 mm
Density of surface snow: not enough to measure

Above Tree Line: Considerable

At Tree Line: Considerable

Below Tree Line: Moderate

N.B. As noted yesterday: the hazard may increase with daytime warming and/or increased load. The loading increase would be a result of wind transportation, so look for lee pockets at and above tree line.

Travel Advisory:
The Level One (professional) avalanche Course reports that they observed high winds in the alpine from the north-west. This is loading the south-east exposures. On the north exposures at tree line there is 20 cm of storm snow over a layer of surface hoar (size 3 to 6 mm) standing erect in the snow pack. This is reacting to the compression test with "easy" to "moderate" results. Down 40 cm from the surface is another shear that reacts to compression tests with "moderate" to "high" resistant planar results. On the south exposures there was melting at the surface to at least 2,000 m a.s.l. The upper snow pack on this exposure is composed of a lamination of melt-freeze crusts. There was faceting observed around these crusts.

The high winds from the north-west are definitely transporting snow. Beware the lee slope.

Archive report: Posted at 10:51am on Wednesday 24th 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. Minegata is now running.\r\n\r\n

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