NORTHERN CAIRNGORMS AVALANCHE HAZARD 1500 HRS TUE 25/2/03 The Southerly winds have strengthened during the day but dry conditions continued. There has been little snow transport except for small deposits of plateau erosion snow on Northerly aspects above 1000 metres. The snowpack remains stable. The avalanche hazard is Low (Category 1). AVALANCHE HAZARD OUTLOOK WED 26/2/03 The strong Southerly winds will continue. Very light snow overnight will be followed by drier conditions during daylight hours. This will not significantly alter the snowpack. There will be small and easily avoidable deposits of new snow on Northerly aspects above 900 metres especially at the tops of gullies and scarp slopes. The avalanche hazard will be Moderate (Category 2). CLIMBING CONDITIONS SNOW DISTRIBUTION: Large patches of wind-scoured snow on plateau. ICING: Some small bosses in Corries, buttresses slightly hoared. COMMENT: Beware of ice and granite pellets flying across plateau in strong winds. LOCHABER AVALANCHE HAZARD 1500 HRS TUE 25/2/03 Slightly warmer temperatures during today have started to thaw the snowpack, which is generally stable. Localised surface instabilities are still present on steep Northerly aspects above 1000m. The avalanche hazard is Moderate (Category 2). AVALANCHE HAZARD OUTLOOK WED 26/2/03 The freezing level is expected to lower to around 700 overnight and during Wednesday. No significant new snow accumulations are expected. The snowpack will become re-frozen and generally stable. The avalanche hazard will be Low (Category 1). CLIMBING CONDITIONS SNOW DISTRIBUTION: Main accumulations in N and E facing corries above 900m. ICING: Freezing level lowering to around 700m overnight and during Wednesday. COMMENT: Strong Southery winds continuing. GLENCOE AVALANCHE HAZARD 1500 HRS TUE 25/2/03 Mild conditions with summit temperatures above zero have brought a slow thaw moistening and softening the snowpack at all levels. Stability is good in most locations. Isolated surface wet snow instabilities remain on the steepest slopes but are generally avoidable. The avalanche hazard is Low (Category 1). Cornice collapse and falling ice remain a hazard. AVALANCHE HAZARD OUTLOOK WED 26/2/03 Little change is expected to occur to the condition of the snowpack with freezing levels around 1000 metres and only the possibility of light rain or sleet on the highest slopes. The slow gradual thaw will continue to soften and moisten the snowpack at most levels. Snowpack stability will remain good on all but the steepest slopes where some surface wet snow instabilities are possible. The avalanche hazard will be Low (Category 1). CLIMBING CONDITIONS SNOW DISTRIBUTION: Snow above 800 metres mainly in high Northerly facing corries and gullies. ICING: Ice above 700m generally thawing but may re-freeze overnight at the highest levels. COMMENT: Limited climbing conditions may improve on the highest slopes. Excellent skiing and boarding on higher runs at Glencoe Ski Centre on Tuesday with a shallow cover of soft spring snow on a firm base. SOUTHERN CAIRNGORMS AVALANCHE HAZARD 1500 HRS TUE 25/2/03 Both the ground and the snow were noticeably softer today below 1000 metres with thawing taking place. The freezing level however held beneath 1200 metres and the snow on the higher hills remained firm underfoot. Cover is patchy and restricted mainly to sheltered headwalls, gullies and burns with more extensive areas on E to S aspects. The avalanche hazard is Low (Category 1). AVALANCHE HAZARD OUTLOOK WED 26/2/03 There will be a little light rain overnight with a dry day forecast for Wednesday. It will remain windy with the freezing level at around 1000 metres. Very little change is expected in the snow pack with a gradual thaw taking place beneath 1000 metres. Above this altitude the snow will be firm and well bonded. The avalanche hazard will be Low (Category 1). Ice falls at lower altitudes will be prone to collapse. CLIMBING CONDITIONS SNOW DISTRIBUTION: Patchy cover. More extensive areas on E to S aspects. ICING: Most ice subject to thaw conditions today. COMMENT: Ice at lower altitudes is becoming thin, wet and scary. CREAG MEAGAIDH AVALANCHE HAZARD 1500 HRS TUE 25/2/03 Strong South-South-East winds have prevailed with the freezing level above the summits. Overnight thaw-freeze cycle has improved bonding of recent shallow deposits of windslab on North-West to North- East aspects 900 metres. The avalanche hazard is Low (Category 1). Elsewhere snowpack stability remains generally good. However rock and fragile ice formations were observed falling from the cliffs in mild air. AVALANCHE HAZARD OUTLOOK WED 26/2/03 Light rain on a strong Southerly wind is forecast overnight with the freezing level remaining above the summits throughout the forecast period. Although general snowpack stability will remain good, mild temperatures and light rain will leave steep and convex terrain suspect on all aspects above 850 metres. The avalanche hazard will be Moderate (Category 2). Large cornices are present above many aspects and these will become increasingly unstable and prone to collapse. Debris will travel for some distance so take care in terrain traps i.e. The Window. CLIMBING CONDITIONS SNOW DISTRIBUTION: Still reasonable cover in corries and most gullies. ICING: A little mushy on lower pitches with a little running water and water jets from ice screws! Still good fun though. COMMENT: Remember cornice collapse doesn't count as an avalanche, but debris can still be significant! -------------------------------------------------------------------------------