Friday, December 31, 2010
Avalanche Debris
This two day old avalanche debris was on a North aspect at 1110 metres. It released on the weak facet layer which was sitting on top of the ice.
Wednesday, December 29, 2010
Slow thaw
Tuesday, December 28, 2010
Strong winds with heavy drifting
Looking down the Ciste Gully whilst braving the Strong South winds. Drifting is very heavy at higher altitudes. The terrain is still hard and icy on exposed slopes with accumulations of windslab in the more sheltered areas.
Working in today's wild Conditions above the Ciste Gully on a North aspect at 790 metres.
Working in today's wild Conditions above the Ciste Gully on a North aspect at 790 metres.
Sunday, December 26, 2010
Windy with drifting
Saturday, December 25, 2010
Change in the Air!
Coire an tt Sneachda
slab cracking underfoot very easily - !!
New windslab is very weak as it is forming onto buried surface hoar which is pretty evident when you travel around as it will crack and block away underfoot.
slab cracking underfoot very easily - !!
New windslab is very weak as it is forming onto buried surface hoar which is pretty evident when you travel around as it will crack and block away underfoot.
The new weather system of southerly winds which will be gale force form sunday evening will drift new slab onto the surface hoar in many areas, so be wary of any new slab , and have a great day working off the turkey !!
Friday, December 24, 2010
Poor Viz
Thursday, December 23, 2010
Another cold day
Wednesday, December 22, 2010
Cold and Clear
Tuesday, December 21, 2010
Bright and Sunny and calm
The cloud cleared at long last and what a stunning day. A few centimetres of fresh snow fell last night which has left a blanket of snow over the hard icy layer....nice for ski touring.Views looking across the Plateau and into the Northern Corries. In the picture is the RAF sea king they came over to drop the stretcher off from yesterdays rescue.
Here is a mixture of surface hoar and new snow.
Here is a mixture of surface hoar and new snow.
Sunday, December 19, 2010
Poor visibility in the Cairngorms
Still very cold with snowpack weaknesses on many aspects. Facets are developing due to steep temperature gradients within the snowpack. This small cornice didn't
Saturday, December 18, 2010
Very cold with bright spells
Friday, December 17, 2010
Still bittlerly cold but a brighter day
Clouds lifted around midday to reveal the crags in the Northern Corries. The approach slopes are mainly very firm and icy but there are a few patches of weakly bonded wind slab mainly in steep sheltered locations.
Thursday, December 16, 2010
Bitterly Cold and Windy
At the snow pit site on the South East side of Cairngorm - bitterly cold and windy !!
The old snowpack has refrozen completely and is very hard, the new snow is building very rapidly in the strong winds and is pretty poorly bonded in itself, surface cracking when walking, indicating weak layers below. Layers of Graupel are the culprit. So the new snow is pretty weak wherever it is lying. The old snow is providing really good snow ice and good climbing conditions.
The old snowpack has refrozen completely and is very hard, the new snow is building very rapidly in the strong winds and is pretty poorly bonded in itself, surface cracking when walking, indicating weak layers below. Layers of Graupel are the culprit. So the new snow is pretty weak wherever it is lying. The old snow is providing really good snow ice and good climbing conditions.
Saturday, December 11, 2010
Getting colder!
Friday, December 10, 2010
Very windy - Deep moist snow
Looking at Aladdins Buttress with two folk heading towards Aladdins Coulouir.
Hard walking getting to the corrie thigh deep in places with wet snow at lower levels - just moist above 700 m. Getting colder from tomorrow which will really improve the conditions both for climbing and snowpack stability. Some cornice collapse evidence at base of crags.
Friday, December 03, 2010
Wndy, Heavy drifting
Exiting Coire an t Sneachda
A very cold day with strong Southerly winds and heavy drifting, North facing slopes getting loaded with new snow, cross loading onto East and West slopes too. On a number of aspects windslab overlies very sugary unstable layers, surface cracks and slab releases occurred when descending the Fiacaill of Sneachda on West facing slopes. A wild day !!
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