20100217 weather data for the 24 hours to 5.30am at 800m

Previous Day Field Observations: 

Yesterday in Hakuba's backcountry: on northerly gentle terrain from 2200m there was 30cm of powder above the thick and hard Feb 11 melt freeze crust. Almost no wind, dry flakes falling with -13C temps at a rate of about 1 cm per hour. Overnight the wind was very light right up into the alpine with another 7cm of dry snow at 800m, expect double at 2000m. Yesterday was great, and there is more very good powder skiing in the backcountry today.

Some soft windslab about 20cm thick observed on a NE aspect at about 2100m with easy hand shears. The recent storm snow has so far been well bonded with the Feb 11 rain crust.

Date: 
20100217
24hr max temp: 
0C
24hr min temp: 
-7C
Cloud Cover: 
Overcast
Precip type and rate: 
S-1
Present temp: 
-7C
24hr new snow (HN24): 
9cm
New snow from current storm (HST): 
12cm
Snow height (HS): 
184cm
Weight of new snow (100mm tube dia): 
50gm
Water equiv of new snow: 
6mm
Density new snow: 
71kg/m3
Surface crystal size: 
2mm
Surface crystal form: 
New Snow
Wind speed: 
Calm
Wind direction: 
n/a
Nil
Barometric Pressure: 
923mbar
Baro trend (last 3 hours): 
Steady
Diary Type: 
Damian's weather diary