sportscotland Avalanche Information Service Snow and Avalanche Report Issued at 19.00 hrs. Thursday 9/12/1999 Very adverse mountain conditions last night and this morning were observed in most Scottish hill areas. Those regions most affected were the Southern and Central Highlands as well as the Cairngorms, but the higher summits in the Border hills and the Ochils were also concerned. This led to some new accumulations in corries and other accumulation zones above 850 metres in most Highland mountain areas. The general snowline for fresh snow lies at around 650 metres, but substantial patches of old snow exist in most areas down to below 300 metres. The Northern Highlands escaped the brunt of the adverse weather, as did Lochaber, which along with the Cairngorms, still holds most snow, mainly on North and East facing slopes above 850 metres. Some build-up, lying on old snow-ice, was noted on other aspects, including West-facing slopes. These conditions present a Category 3 (Considerable) hazard of avalanche. Avalanche Hazard Outlook Friday 10/12/1999 A mainly dry day with conditions around freezing on the highest summits will lead to little change in the current snow conditions. Instabilities will still be present where new accumulations are greatest on steep mainly North and Easterly aspects mostly above 850 metres, especially where re-frozen old snow underlies. Potential instabilities on other high aspects, including West-facing slopes, will be present. These conditions concern mainly, but not only, the Cairngorms and Lochaber. A Category 3 (Considerable) hazard of avalanche will exist. ------------------------------------------------------------------------------- sportscotland Avalanche Information Service Snow and Avalanche Report Re-send 19.55 hrs. Issued at 19.00 hrs. Thursday 9/12/1999 Very adverse mountain conditions last night and this morning were observed in most Scottish hill areas. Those regions most affected were the Southern and Central Highlands as well as the Cairngorms, but the higher summits in the Border hills and the Ochils were also concerned. This led to some new build-up in corries and other accumulation zones above 850 metres in most Highland mountain areas. The general snowline for fresh snow lies at around 650 metres, but substantial patches of old snow exist in most areas down to below 300 metres. The Northern Highlands escaped the brunt of the adverse weather, as did Lochaber, which along with the Cairngorms, still holds most snow, mainly on North and East facing slopes above 850 metres. Some build-up, lying on old snow-ice, was noted on other aspects, including West-facing slopes. These conditions present a Category 3 (Considerable) hazard of avalanche. Avalanche Hazard Outlook Friday 10/12/1999 A mainly dry day with conditions around freezing on the highest summits will lead to little change in the current snow conditions. Instabilities will still be present where new accumulations are greatest on steep mainly North and Easterly aspects mostly above 850 metres, especially where re-frozen old snow underlies. Potential instabilities on other high aspects, including West-facing slopes, will be present. These conditions concern mainly, but not only, the Cairngorms and Lochaber. A Category 3 (Considerable) hazard of avalanche will exist. -------------------------------------------------------------------------------