Snow and Avalanche Report Issued at 17.00 hrs Thursday 23/11/2000 Full winter conditions persist above 700 metres in most Highland ranges. Drifting during the day of lying snow above 900 metres has led to fresh slab build-up on all Northerly aspects. Gullies, scarp slopes and crag aprons now bear substantial accumulations of slab and loose snow. North- facing slopes and gullies also show cornice build-up. In Lochaber, fresh snowfall has increased accumulations, with cornice build-up noted in several areas, including the East face of Aonach Mor. In the Northern Cairngorms, following a period of Easterly winds on Wednesday night, debris from several loose-snow avalanches was observed on West-facing slopes at 1000 metres in Coire an t-Sneachda. Easy shears were observed in test pits at 900 metres in the same location. Due to variable winds in the past 72 hours, slopes of many aspects are unstable. The avalanche hazard in affected areas is High (Category 4 ). Avalanche Hazard Outlook Friday/Saturday 24-25/11/2000 Some snow showers on Thursday night will be followed by a drier day on Friday, but the High (Category 4) avalanche hazard will be maintained on slopes of most aspects above 800 metres and particularly on all North-facing slopes. Further snow above 500 metres on Friday night will maintain this situation into Saturday. Most Highland ranges will be affected, but particularly Glencoe, Lochaber, Creag Meagaidh and the Cairngorms. Milder conditions are likely to affect the Highlands from Saturday evening. Climbing conditions: conditions are generally poor, with little ice in the West and variable build-up in the Cairngorms. However, any ice is likely to be deeply buried. Easy gullies are hazardous. Approaches are laborious, with deep wet snow below 900 metres and unconsolidated colder snow above that level. Note: this Report will be updated on Saturday 25/11/2000. -------------------------------------------------------------------------------