NORTHERN CAIRNGORMS AVALANCHE HAZARD 1500 HRS SUN 11/1/04 The snow showers forecast developed into periods of quite heavy snow with strong winds from the West-South-West. Where sampled with a snow profile on a North-North-East aspect at 1100 metres the snowpack showed fair to poor stability with deep foot penetrations and avalanche activity observed. The avalanche hazard is Considerable (Category 3). AVALANCHE HAZARD OUTLOOK MON 12/1/04 Light snow and strong winds from the West-South- West will continue. This will contribute to a change from soft slab to hard slab, with the hard slab sitting on softer snow below. This slab will exhibit fair to poor stability. The developing slab and new cornices will form on North to East aspects above 1000 metres where avalanches are likely. The avalanche hazard will be Considerable (Category 3) CLIMBING CONDITIONS SNOW DISTRIBUTION: Deep foot penetrations on lee slopes. ICING: Another growth cycle prevails. COMMENT: Significant change in snow stability. LOCHABER AVALANCHE HAZARD 1500 HRS SUN 11/1/04 Heavy snow showers and strong SW winds have deposited further areas of unstable windslab on sheltered aspects. Greatest accumulations are on sheltered North, North-East, East and South-East aspects above 1000 metres. The avalanche hazard is Considerable (Category 3). AVALANCHE HAZARD OUTLOOK MON 12/1/04 Snow showers and strong SW winds will further load sheltered areas with unstable windslab. Greatest accumulations will be on North, North-East, East and South-East aspects above 1000 metres, where avalanches are likely, particularly on scarp slopes and crag aprons. The avalanche hazard will be Considerable (Category 3). CLIMBING CONDITIONS SNOW DISTRIBUTION: Light cover above 400m. General cover above 800m. ICING: Icing should improve with the continuing cold temperatures. COMMENT: Winter is back! GLENCOE AVALANCHE HAZARD 1500 HRS SUN 11/1/04 Stormy conditions and new snow have caused some heavy drifting above 800 metres. Deep accumulations of unstable windslab have formed in many sheltered gullies and on slopes with a North-West through North to Easterly aspect mainly above 850 metres. Much of this windslab is lying on a layer of hail and under field tests today gave consistently easy shears. The avalanche hazard is Considerable (Category 3) AVALANCHE HAZARD OUTLOOK MON 12/1/04 The gale force South-Westerly airflow will continue overnight and on Monday. Moderate falls of new snow and wind transport of existing snow will significantly add to already weakly bonded accumulations of windslab in all sheltered gullies and on slopes with a North to Easterly aspect mainly above 800 metres. Weak cornices will also form above these locations. Avalanches will occur where deep accumulations of windslab have formed. The avalanche hazard will be High (Category 4). CLIMBING CONDITIONS SNOW DISTRIBUTION: Snow above 400 metres with deep drifting above 850 metres. ICING: Ice forming on rocks above 850 metres. COMMENT: Climbing conditions are continuing to improve on the higher ridges and buttresses. Outlook is cold but windy. Windslab and cornices will require great caution. SOUTHERN CAIRNGORMS AVALANCHE HAZARD 1500 HRS SUN 11/1/04 A stormy period has led to new accumulations in very sheltered locations on N to E aspects above 600 metres. Bonding of new deposits to the older snow is poor, particularly on steeper slopes. The avalanche hazard is Considerable (Category 3). Older snow that is exposed to the wind has re-frozen. AVALANCHE HAZARD OUTLOOK MON 12/1/04 There will be little alteration to the snowpack. On N to E aspects above 700 metres deeper soft accumulations will remain moderately to weakly bonded to the older snow-ice. Greatest hazard will be found in steeper sheltered locations, gully exits and scarp slopes. The avalanche hazard will be Considerable (Category 3). Stability of newly formed cornices will also be suspect. CLIMBING CONDITIONS SNOW DISTRIBUTION: Looking a bit more wintry. ICING: Limited visibility today, but water still running at 950 metres. COMMENT: Another windy day is forecast. CREAG MEAGAIDH AVALANCHE HAZARD 1500 HRS SUN 11/1/04 Heavy snow showers on strong South-West winds have led to significant accumulations of fresh, soft windslab which are developing on North to East aspects above 800 metres. Stability is poor and field tests identified several weak sub-surface layers. The avalanche hazard is Considerable (Category 3). Fresh unstable cornices are also present above these locations. AVALANCHE HAZARD OUTLOOK MON 12/1/04 Light snow showers with associated drifting on strong West- South-West winds will continue to build windslab on North to East aspects above 750 metres. Stability of these fresh deposits will remain poor in cold daytime temperatures and avalanches are likely. The avalanche hazard will be Considerable (Category 3). Steep lee slopes, gully exits and sheltered hollows will be particularly affected. CLIMBING CONDITIONS SNOW DISTRIBUTION: Fresh cover at all levels. ICING: Generally very poor, with slow improvement. COMMENT: Unstable cornices will continue to build throughout the period. -------------------------------------------------------------------------------