Hakuba Now daily snow and weather - Tuesday 20th February 2007

Hakuba Now (Archive Report)

Independent and trustworthy daily snow and weather reports from Hakuba (Nagano), Japan
ARCHIVE REPORT: Posted at 9:08am on Tuesday 20th February 2007
Current weather conditions
Observed fresh snowfall
weather condition
Clear
Base temp:
0°C

Top temp:
0°C
Precipitation Wind Visibility
precipitation condition
-
wind condition
Light from north-west
Excellent
This report
Tuesday 20th February 2007, 9:08am
---
Monday 19th February 2007, 9:17am ---
Sunday 18th February 2007, 9:13am ---
Saturday 17th February 2007, 9:05am ---
Friday 16th February 2007, 9:19am ---
Thursday 15th February 2007, 11:02am ---
Wednesday 14th February 2007, 9:11am ---
Last 7 reports (total): ---
Last 14 reports (total): ---
Current month (February 2007) total: ---
season so far total: ---

Archive report: Posted at 9:08am on Tuesday 20th February 2007
The latest Hakuba Now report can be found here

Sharpen your edges and don your radiation shields as the piste is frozen and the high pressure clear skies are here, for today. The forecast high temperature in the valley is 9C. On the sun blasted white slopes this may feel warmer. Valley winds are forecast as light from the north-west, but that is only a forecast.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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

Sky: Clear (no clouds)
Temperature: Present: -3.5 C
Maximum: 3.0 C
Minimum: -4.0 C
Wind at surface: Light from the west
Winds aloft: Nothing to measure by: i.e. no clouds, no blowing snow
Precipitation: Nil precipitation
Barometer and trend: 921 hPa and steady
Height of new snow in 24 hours (HN24): 0 cm
Total depth of snowpack (HS): 73 cm
Foot penetration: 0 cm
Surface: Melt freeze conglomerate, slight faceting
Density of surface snow: not measured
Crust: 7 cm
Cloud ceiling: unlimited
^^^^^^^^^^^^^^^^^^^^^^^^
Hazard:

Above tree line: Moderate

Tree line: Low

Below tree line: Low

N.B. This is the same hazard rating as yesterday. The low elevation crust is substantially thicker this morning but the daily warming will be greater so the same proviso as yesterday has been added, namely: The hazard will increase with the daily warming. The lower elevation snow pack is isothermal and may react to a slight increase in temperature especially on steep solar radiation effected slopes (even through cloud cover the sun has an affect).

Travel Advisory:
As was noted yesterday, the day-time warming of the upper elevation terrain caused point release(loose snow) avalanches. These started mostly in "non-skiable" terrain but often carried well into "skiable" terrain. These all appear to be in the size one and two range. Whether this happened again yesterday is hard to determine with the limited visibility prior to this morning. Yesterday afternoon the freezing level on a north-east exposure was about 1,000 m a.s.l. or slightly higher. This was in the fog. As noted yesterday in the above tree line terrain the sun exposed terrain hazard is probably in the "low" range but where the sun did not affect it the hazard is probably still "moderate". The daily increase in temperature will increase this hazard, maybe substantially. The lower elevation snow pack is isothermal and so might react with surprising results to apparently slight changes in temperature.

To me, with the definite melt freeze crust it seems like spring skiing. This means early starts, play the crust loosening up game and get the horses back in the barn before the afternoon melt-down. Watch for the lower elevation, late afternoon isothermal terrain traps.

Archive report: Posted at 9:08am on Tuesday 20th February 2007
The latest Hakuba Now report can be found here

Hakuba Now ski lift operation notes:

All resorts operating.

<
Monday 19th February 2007
This report
Tuesday 20th February 2007
Wednesday 21st February 2007
>
17-18 REPORTING
Exclusive daily snow reporting on SnowJapan will be back before the 17-18 ski season starts so look out for updates starting later on in November.
Daily snow reports
Other SnowJapan 'Now' reports and latest observed snowfall
Furano Now 0cm
Thursday 25th May 2017, 9:01am
Niseko Now 0cm
Sunday 7th May 2017, 10:14am
Minakami Now 0cm
Monday 1st May 2017, 3:08pm
Madarao Now 0cm
Sunday 2nd April 2017, 8:01am
Myoko Now 0cm
Sunday 7th May 2017, 9:54am
Yuzawa Now 0cm
Monday 29th May 2017, 2:07pm
Shiga Kogen Now 0cm
Monday 29th May 2017, 7:35am
Appi Kogen Now 0cm
Thursday 18th May 2017, 8:33am
Grandeco Now 0cm
Sunday 7th May 2017, 8:49am
Zao Now 0cm
Sunday 7th May 2017, 10:04am
Naeba Now 0cm
Sunday 2nd April 2017, 9:58am
Nozawa Onsen Now 0cm
Sunday 7th May 2017, 9:11am
Kiroro Now 0cm
Monday 1st May 2017, 9:00am
Japan snowfall data
(updated daily during winter)
Hakuba Now archived reporting
View previous reports posted to Hakuba Now by clicking on the month

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002