NORTHERN CAIRNGORMS AVALANCHE HAZARD 1500 HRS FRI 29/1/99 The top-most layers of new windslab that lies on E to SE aspects have been moistened and softened by light but persistent drizzle. Stability tests showed up easy shears in layered new slab in these locations and stability was marginal to poor above 1050m. New, fragile-looking cornices overhang many of these places. Considerable (Category 3) hazard of avalanche. AVALANCHE HAZARD OUTLOOK SAT 30/1/99 Dry, mild conditions will prevail right through the forecast period. Stability will again be marginal on steep E to SE aspects above 1050m exposed to high potential loading from cornice collapse. Considerable (Category 3) hazard of avalanche in these locations. The snowpack will begin to consolidate at lower altitudes and on slopes and gullies of most other aspects. CLIMBING CONDITIONS SNOW DISTRIBUTION: Wet snow at all levels on Friday. Cover remains good above 700m. Deep drifts remain in places. ICING: The predicted thaw will be useful as long as we get a re-freeze. Getting rather wet Friday pm. COMMENT: Freezing level just above summits for Saturday. LOCHABER AVALANCHE HAZARD 1500 HRS FRI 29/1/99 Mild temperatures and light rain overnight have produced a moist snowpack at all levels. Unstable wet snow exists on many aspects, especially steep slopes and gullies with N, E and SE facing aspects. The avalanche hazard is Considerable (Category 3). Unstable cornices above many aspects. AVALANCHE HAZARD OUTLOOK SAT 30/1/99 A continuing mild SW airflow overnight and into Saturday with accompanying light rain is not expected to significantly stabilise the existing snowpack. Wet snow avalanches are likely on steep N, E and SE aspects. The avalanche hazard will be Considerable (Category 3). Remaining cornices prone to collapse. CLIMBING CONDITIONS SNOW DISTRIBUTION: Cover remaining at around 650m ICING: Freezing level staying at 1400m COMMENT: Mild conditions continuing. GLENCOE AVALANCHE HAZARD 1500 HRS FRI 29/1/99 The rise in temperature has left the surface layers of the snowpack moist but unstable layers some which contain hail are still present deeper within the snowpack. Above 800m on steep N through to E facing slopes, corrie headwalls and in sheltered gullies, deep soft slab is moderately to weakly bonded. The avalanche hazard in these areas is Considerable (Category 3). Cornices are becoming unstable and prone to collaspe. AVALANCHE HAZARD OUTLOOK SAT 30/1/99 Remaining mild with light rain at all levels. The snowpack will continue to consolidate albeit slowly. Layered unstable slab will still exist in sheltered gullies and on slopes with a N to E aspect mainly above 800m. The avalanche hazard will be Considerable (Category 3) and avalanches are likely on steeper slopes. CLIMBING CONDITIONS SNOW DISTRIBUTION: Snow cover above 500m. ICING: Thawing ice above 700m. COMMENT: Milder conditions will affect the area. SOUTHERN CAIRNGORMS AVALANCHE HAZARD 1500 HRS FRI 29/1/99 Thaw conditions with some light rain have left the snowpack moist at most levels. On N to SE aspects recent accumulations continued to be unstable. Some cornice debris was noted on these aspects. The avalanche hazard is Considerable (Category 3). AVALANCHE HAZARD OUTLOOK SAT 30/1/99 Mild conditions will continue leaving snow soft and moist at all levels. On N to SE aspects there will be areas of soft wet unstable snow with remaining cornices prone to collapse and avalanches likely. The avalanche hazard will be Considerable (Category 3). CLIMBING CONDITIONS SNOW DISTRIBUTION: Thawing at all levels but still complete above 900m. ICING: Thawing at all levels. COMMENT: Rock and ice fall a hazard during thaw conditions. CREAG MEAGAIDH AVALANCHE HAZARD 1500 HRS FRI 29/1/99 Very mild temperatures have left a moist snowpack on all aspects. Partially bonded wet slab exists on NW through to SE aspects above750m. This wet slab contains a number of saturated layers which must be considered suspect. A number of surface sluffs have occurred and ice is collapsing readily. The avalanche hazard is Considerable (Category 3). AVALANCHE HAZARD OUTLOOK SAT 30/1/99 Continuing mild temperatures and rain at all levels, mean that the snowpack will remain soft and moist. Wet slab will continue to be present on NW through to SE aspects above 750m. In addition sluffing from steep rock, collapsing ice and an increased risk of cornice collapse will occur on any aspect. The avalanche hazard will remain Considerable (Category 3) with avalanches likely on the above mentioned areas. CLIMBING CONDITIONS SNOW DISTRIBUTION: Deep cover above 600m, now very soft and moist. ICING: Lots of it, but unfortunately collapsing all around. COMMENT: Significant hazard of cornice collapse in these very mild conditions. -------------------------------------------------------------------------------