{ "bulletins": [ { "avalancheActivity": { "comment": "Forecast Snow Stability: Little change in the morning but by afternoon accumulations of fresh unstable windslab will develop mainly on North to East aspects above 800 metres. South-East aspects will also be affected due to cross loading. Steep wind sheltered locations such as coire rims and gully tops will be most affected particularly where accumulations develop over old snow. Unstable cornices will also develop throughout the day. The avalanche hazard will be Moderate.", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "N", "NE", "E" ], "elevation": { "lowerBound": "800" } }, { "problemType": "cornices", "aspects": [ "N", "NE", "E" ], "elevation": { "lowerBound": "900" } } ], "bulletinID": "GB-SCT-13454", "customData": { "ALBINA": { "mainDate": "2026-04-04" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "700", "upperBound": "800" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "800", "upperBound": "1200" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "N", "NE", "E", "SE" ], "elevation": { "lowerBound": "800", "upperBound": "1200" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-04-03T00:00:00", "regions": [ { "regionID": "GB-SCT-5" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: Remaining cold overnight with the freezing level rising to around 800 metres or so by end of this period. A dry morning is expected with increasingly heavier snowfall in the afternoon. Winds will be light first thing becoming gale force from the South-East by the end of the day.\nObserved Weather Influences: There was some variance in the freezing level, 800 metres overnight, then up to 1000 metres by early afternoon, then dropping to 900 metres. Some new snowfall overnight and late afternoon. There was a strong breeze rom the West throughout.\nObservedSnowStability: New soft and generally shallow deposits had developed above 850 metres on North through East to South-East aspects. Isolated deeper deposits were noted around corrie rims and gully tops. Older snow remained firm. The avalanche hazard is Low." }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-04-03T18:00:00", "endTime": "2026-04-04T18:00:00" } }, { "avalancheActivity": { "comment": "Forecast Snow Stability: Localised deposits of fresh windslab will develop through the forecast period. Steep wind sheltered locations on North to East aspects above 750 metres will be most affected with some redistribution onto Westerly aspects from mid afternoon, however on Westerly aspects new deposits will overlie bare ground. The avalanche hazard will be Moderate", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "N", "NE", "E" ], "elevation": { "lowerBound": "750" } } ], "bulletinID": "GB-SCT-13453", "customData": { "ALBINA": { "mainDate": "2026-04-04" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "600", "upperBound": "800" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "800", "upperBound": "1100" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "N", "NE", "E" ], "elevation": { "lowerBound": "800", "upperBound": "1100" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-04-03T00:00:00", "regions": [ { "regionID": "GB-SCT-7" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: Snow showers throughout the period becoming more frequent towards the end of the afternoon. The freezing level will rise from around 400 metres to 600 metres. Strong West-South-Westerly winds overnight decreasing and becoming moderate Southerly during the day and backing South-Easterly increasing significantly from mid afternoon.\nObserved Weather Influences: Showers became more frequent in the afternoon and fell as snow above around 500 metres. Winds were strong Westerly.\nObservedSnowStability: The existing snow cover is well bonded and stable with a thin icy crust. Isolated pockets of shallow windslab are beginning to develop on North-East to South-East aspects above around 750 metres. The avalanche hazard is Low." }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-04-03T18:00:00", "endTime": "2026-04-04T18:00:00" } }, { "avalancheActivity": { "comment": "Forecast Snow Stability: New weak windslab will be present on steep North to East aspects above 850m in the morning and will build quickly on North West aspects much later in the day. New fragile cornice development also anticipated over these locations. Good stability at lower altitudes, less steep ground, and all aspects recently wind scoured. The avalanche hazard will be Moderate", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "N", "NE", "E", "NW" ], "elevation": { "lowerBound": "850" } }, { "problemType": "cornices", "aspects": [ "N", "NE", "E", "NW" ], "elevation": { "lowerBound": "900" } } ], "bulletinID": "GB-SCT-13452", "customData": { "ALBINA": { "mainDate": "2026-04-04" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "600", "upperBound": "800" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "SE", "S", "SW", "W" ], "elevation": { "lowerBound": "800", "upperBound": "1100" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "N", "NE", "E", "NW" ], "elevation": { "lowerBound": "800", "upperBound": "1100" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-04-03T00:00:00", "regions": [ { "regionID": "GB-SCT-6" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: Much colder overnight but temperatures will ease a little over the course of the day. Winds initially moderate to strong Westerly backing Southerly, later South Easterly and becoming very strong. Some snow showers overnight then dry for a time in the morning before more persistent snowfall commencing in the afternoon.\nObserved Weather Influences: Overnight snowfall down to 750m then suddenly milder in the early hours. Colder during the morning with snow showers feeding in after midday. Strong Southerly winds overnight easing and becoming Westerly later.\nObservedSnowStability: Period of poorer stability overnight with debris from minor wet snow instability present on a few steep North aspects above 900m. Stability improved in all locations during the morning as colder temperatures became established. Only a little new snowfall observed after midday and very limited drifting at the time of reporting. Older and more recent cornices were beginning to refreeze. The avalanche hazard is Low" }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-04-03T18:00:00", "endTime": "2026-04-04T18:00:00" } }, { "avalancheActivity": { "comment": "Forecast Snow Stability: Areas of unstable windslab will be deposited through the day. Initially deposits will be quite shallow and mainly on North to East aspects above 900 metres. These areas will increase in depth and extent particularly during the afternoon. North-West and West aspect will also become affected. The avalanche hazard will be Considerable", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "N", "NE", "W", "NW" ], "elevation": { "lowerBound": "900" } }, { "problemType": "cornices", "aspects": [ "N", "NE", "NW" ], "elevation": { "lowerBound": "1000" } } ], "bulletinID": "GB-SCT-13451", "customData": { "ALBINA": { "mainDate": "2026-04-04" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "E", "SE", "S", "SW", "W" ], "elevation": { "lowerBound": "600", "upperBound": "900" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "N", "NE", "NW" ], "elevation": { "lowerBound": "600", "upperBound": "900" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "S", "SW" ], "elevation": { "lowerBound": "900", "upperBound": "1300" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "E", "SE" ], "elevation": { "lowerBound": "900", "upperBound": "1300" }, "validTimePeriod": "all_day" }, { "mainValue": "considerable", "aspects": [ "N", "NE", "W", "NW" ], "elevation": { "lowerBound": "900", "upperBound": "1300" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-04-03T00:00:00", "regions": [ { "regionID": "GB-SCT-3" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: Snow shower are expected overnight and during the morning before a more substantial band of snowfall reaches the area late afternoon. Winds from the South-West backing to the South-East and strengthening during the afternoon. The freezing level will be around 500 metres rising towards 1200 metres right at the end of the period.\nObserved Weather Influences: Overnight the freezing level briefly rose above the summits before dropping to about 900 metres where it remained through the day. A dry morning was followed by a few hours of snowfall early afternoon. The wind was from the South-West.\nObservedSnowStability: The existing snowpack froze and consolidated overnight. It was firm and icy above 900 metres. Below that level it was thawing gently. During the afternoon some areas of fresh windslab were deposited on mainly North to East aspects above 900 metres. These areas were not particularly extensive or deep. The avalanche hazard is Low." }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-04-03T18:00:00", "endTime": "2026-04-04T18:00:00" } }, { "avalancheActivity": { "comment": "Forecast Snow Stability: Overnight localised unstable windslab will develop on North-East to South-East aspects above 800 metres. During the afternoon unstable windslab will become more widespread on North-West to North-East aspects above 800 metres. West aspects will be affected by cross loading. Areas most affected will be steep wind sheltered locations such as gully tops, coire rims and ridge flanks. Fresh cornices will be fragile. The avalanche hazard will be Considerable", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "N", "NE", "E", "SE", "W", "NW" ], "elevation": { "lowerBound": "800" } }, { "problemType": "cornices", "aspects": [ "N", "NE", "E", "SE", "W", "NW" ], "elevation": { "lowerBound": "1000" } } ], "bulletinID": "GB-SCT-13450", "customData": { "ALBINA": { "mainDate": "2026-04-04" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "600", "upperBound": "800" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "S", "SW" ], "elevation": { "lowerBound": "800", "upperBound": "1300" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "E", "SE", "W" ], "elevation": { "lowerBound": "800", "upperBound": "1300" }, "validTimePeriod": "all_day" }, { "mainValue": "considerable", "aspects": [ "N", "NE", "NW" ], "elevation": { "lowerBound": "800", "upperBound": "1300" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-04-03T00:00:00", "regions": [ { "regionID": "GB-SCT-2" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: Snow showers during the night on gale force West-South-Westerly winds. Dry conditions expected during the morning followed by snow fall during the afternoon on fresh increasing to gale force South-Easterly winds. The 500 metre freezing level will steadily rise to 900 metres by the end of the forecast period.\nObserved Weather Influences: A dry morning before the onset of snowfall on strong Westerly winds during the afternoon. The midday freezing level was around 900 metres.\nObservedSnowStability: Overnight there was a period of surface instabilities on steep North-Westerly to North-Easterly aspects above 1000 metres. Currently recent windslab accumulations are consolidating and have developed a friable surface crust; however, on these aspects above 950 metres snowpack weaknesses remain within deeper accumulations in areas of steep terrain. Through the afternoon, new windslab developed on North-East to South-East aspects above 900 metres. The avalanche hazard is Moderate." }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-04-03T18:00:00", "endTime": "2026-04-04T18:00:00" } }, { "avalancheActivity": { "comment": "Forecast Snow Stability: Overnight moderately bonded windslab will develop in wind sheltered areas, continuing through the day. Greatest accumulations will be in sheltered gullies and on slopes with a mainly North-West through North to Easterly aspect mostly above 850 metres. Other aspects may be affected by cross loading. Fragile cornices will form in similar locations. Elsewhere the snowpack will generally remain stable, The avalanche hazard will be Moderate.", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "N", "NE", "E", "SE", "NW" ], "elevation": { "lowerBound": "850" } }, { "problemType": "cornices", "aspects": [ "N", "NE", "E", "SE", "NW" ], "elevation": { "lowerBound": "850" } } ], "bulletinID": "GB-SCT-13449", "customData": { "ALBINA": { "mainDate": "2026-04-04" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "400", "upperBound": "800" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "SE", "S", "SW", "W" ], "elevation": { "lowerBound": "800", "upperBound": "1200" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "N", "NE", "E", "NW" ], "elevation": { "lowerBound": "800", "upperBound": "1200" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-04-03T00:00:00", "regions": [ { "regionID": "GB-SCT-4" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: The freezing level will lower to around 400 metres by dawn then slowly rise to be above the summits by the end of the day. Moderate to strong winds initially Westerly becoming all points Southerly. Precipitation all through the forecast period initially falling as snow mainly above 300 metres turning rain at lower levels as the freezing level climbs through the day.\nObserved Weather Influences: Last night the freezing level was above the summits with rain at all levels. In the early hours of the morning the freezing level fell and rain turned to snow showers mainly above 700 metres these fell on strong South-Westerly winds. This morning was general quite bright, dry with some sunny spells. Winds were moderate South-Westerly. The freezing level was around 900 metres. Precipitation started up again around midday falling as snow mostly above 800 metres.\nObservedSnowStability: New snow accumulations were not extensive and quickly consolidated. Lower overnight temperatures partly re-froze the older moist snowpack. which has a combination of a rain or melt freeze surface crust. Generally the snowpack is well bonded in most locations and elevations. The avalanche hazard is Low." }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-04-03T18:00:00", "endTime": "2026-04-04T18:00:00" } } ] }