NORTHERN CAIRNGORMS
AVALANCHE HAZARD 1500 HRS TUE 12/1/99 
A period of highest instability from overnight snow deposits has 
passed. Debris from early morning avalanche events was noted 
on steep NW aspects above 900m. Deeper instabilities within 
the snowpack still remain with "whumphing" sounds noted (and 
reported) on slopes of a Northerly aspect. Avalanche hazard 
remains High (Category 4).

AVALANCHE HAZARD OUTLOOK WED 13/1/99
The period of current instability will persist. Further snow and 
strong variable winds will result in windslab development on 
many steep lee slopes above 900m. The avalanche hazard will 
remain High (Category 4) and where accumulations are greatest
avalanches will occur.

CLIMBING CONDITIONS 

SNOW DISTRIBUTION: Improving, light cover to valley with 
deeper drifting in high sheltered locations.
ICING: Little change, cold conditions maintaining steady build 
up.
COMMENT: Gully exit slopes with any significant build up 
will require careful consideration. Good but limited skiing 
conditions in Cairngorm ski area.




LOCHABER
AVALANCHE HAZARD 1500 HRS TUE 12/1/99 
A strong SW airflow has deposited significant amounts of 
unstable soft windslab overnight. Greatest accumulations are on 
sheltered steep slopes and gullies with NE, E and SE aspects 
above 800m. Where this slab exists, it is weakly bonded to the 
existing snowpack. In these locations the avalanche hazard is 
High (Category 4). Avalanche activity observed on E aspects at 
1000m, Aonach Mor. 

AVALANCHE HAZARD OUTLOOK WED 13/1/99
An unstable weather pattern and continuing snowfall will not 
stabilise the existing snowpack. Significant amounts of unstable 
windslab will continue to form on sheltered steep slopes and 
gullies with NE, E and SE aspects above 800m. Avalanches will 
occur in these locations. The avalanche hazard will be High 
(Category 4). Unstable cornices continuing to form.


CLIMBING CONDITIONS 

SNOW DISTRIBUTION: Good cover above 800m
ICING: Freezing level remaining around 700m

COMMENT: Unsettled winter conditions continuing.
 


GLENCOE
AVALANCHE HAZARD 1500 HRS TUE 12/1/99
Heavy snowfall and strong winds have formed weakly bonded 
accumulations of windslab mainly above 800m in sheltered 
gullies and on slopes with a N to E aspect. Where these deposits 
lie on steeper slopes the avalanche hazard is Considerable 
(Category 3). In areas exposed to the recent strong winds the 
snowpack has a firm icy crust   

AVALANCHE HAZARD OUTLOOK WED 13/1/99
New snow and sleet with strengthening Westerly winds will 
continue to form unstable accumulations of windslab mainly 
above 800m in sheltered gullies and on slopes with a N to SE 
aspect.The avalanche hazard will remain Considerable 
(Category 3). Where deeper accumulations of windslab form,
avalanches are likely in these areas. Fresh cornice formations 
will be prone to collapse.   


CLIMBING CONDITIONS 

SNOW DISTRIBUTION: Snow above 300m.
ICING:  Ice above 400m.
COMMENT: Reasonable climbing conditions exist on 
buttresses above 800m but high winds and fresh windslab will 
require caution.  



SOUTHERN CAIRNGORMS
AVALANCHE HAZARD 1500 HRS TUE 12/1/99 
Moderate snowfall on a changing wind has left fresh deposits on N
through to SE aspects. New accumulations are weakly bonded above
900m on these aspects and cornices are unstable. The avalanche
hazard is High (Category 4). Exposed slopes are scoured and icy.

AVALANCHE HAZARD OUTLOOK WED 13/1/99
Some further snowfall tonight and tomorrow will maintain the
current unstable period on N to SE aspects above 900m. Avalanches
will occur on these aspects and cornices will remain unstable.
The avalanche hazard will remain High (Category 4).


CLIMBING CONDITIONS 

SNOW DISTRIBUTION: Good cover above 700m.
ICING: All under snow at present.
COMMENT: Good ski touring conditions.



CREAG MEAGAIDH
AVALANCHE HAZARD 1500 HRS TUE 12/1/99
Heavy snowfall on SW to NW winds have left areas of deep, 
very unstable windslab on steep slopes, and in hollows and 
gullies of all aspects above 750m.  The soft slab is very weakly 
bonded to the old, hard snow beneath. The avalanche hazard is 
High (Category 4) and avalanche debris was noted in Coire 
a'Chriochairein.

AVALANCHE HAZARD OUTLOOK WED 13/1/99
Further heavy falls of snow, with strong NW winds tonight 
becoming SW tomorrow, will continue to build areas of 
unstable windslab. Slopes of all aspects above 750m, in 
particular sheltered gullies and hollows, will be affected. Fresh, 
unstable cornices will form above many steep slopes. The 
avalanche hazard will be High (Category 4) and avalanches will 
occur.


CLIMBING CONDITIONS 

SNOW DISTRIBUTION: Fresh snow cover at all levels.

ICING: Mostly hollow and cruddy and now buried!

COMMENT:


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