{ "bulletins": [ { "avalancheActivity": { "comment": "Forecast Snow Stability: Weak windslab will continue to build on all steep North to East aspects above 950m. New fragile cornice development also expected over these places. The older wet snowpack at lower elevations and in all other locations will refreeze become crusty and be well stabilised. The avalanche hazard will be Considerable", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "N", "NE", "E", "SE" ], "elevation": { "lowerBound": "950" } }, { "problemType": "cornices", "aspects": [ "N", "NE", "E", "SE" ], "elevation": { "lowerBound": "950" } } ], "bulletinID": "GB-SCT-13424", "customData": { "ALBINA": { "mainDate": "2026-03-30" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "600", "upperBound": "1000" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "1000", "upperBound": "1100" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "SE" ], "elevation": { "lowerBound": "1000", "upperBound": "1100" }, "validTimePeriod": "all_day" }, { "mainValue": "considerable", "aspects": [ "N", "NE", "E" ], "elevation": { "lowerBound": "1000", "upperBound": "1100" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-03-29T00:00:00", "regions": [ { "regionID": "GB-SCT-6" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: Cold with frequent snow showers overnight and during the morning. Strong Westerly later West North Westerly winds.\nObserved Weather Influences: Strong South South West later Westerly winds. Frequent occasionally heavy showers of snow, with sleet or rain for a time at lower altitudes. Cold overnight but with a brief warming period late morning, colder thereafter.\nObservedSnowStability: A brief warming event during the morning induced poor stability with several avalanches on steep North to East aspects in Coire Ardair. Cooler temperatures brought some initial consolidation to all snow but further snowfall induced new drifting at the time of reporting. Areas most affected by new weak windslab are steep North to East aspects above 950m. The avalanche hazard is Moderate" }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-03-29T18:00:00", "endTime": "2026-03-30T18:00:00" } }, { "avalancheActivity": { "comment": "Forecast Snow Stability: The existing snowpack will be well bonded, firm and stable. Localised deposits of fresh windslab will build gradually through the day, deposits will be confined to wind sheltered areas such as gullies and coire rims. North-East to South-East aspects above 700 metres will be most affected. The avalanche hazard will be Moderate.", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "NE", "E", "SE" ], "elevation": { "lowerBound": "700" } } ], "bulletinID": "GB-SCT-13423", "customData": { "ALBINA": { "mainDate": "2026-03-30" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "500", "upperBound": "700" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "N", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "700", "upperBound": "1100" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "NE", "E", "SE" ], "elevation": { "lowerBound": "700", "upperBound": "1100" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-03-29T00:00:00", "regions": [ { "regionID": "GB-SCT-7" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: Showers throughout the forecast period will initially fall as snow above around 500 metres, turning to rain below 700 metres as the freezing level rises through the day. Winds will be strong mainly Westerly.\nObserved Weather Influences: Heavy rain at all levels this morning turned to snow above around 300 metres as the freezing level lowered. Strong mainly westerly winds. The freezing level lowered from above the summits to around 600 metres by the end of the day.\nObservedSnowStability: After a period of instability last night and early this morning, the snowpack is now consolidating. The snow surface is beginning to refreeze in the colder temperatures. Snowpack stability is generally good. The avalanche hazard is Low." }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-03-29T18:00:00", "endTime": "2026-03-30T18:00:00" } }, { "avalancheActivity": { "comment": "Forecast Snow Stability: Localised moderately to weakly bond windslab will be present in wind sheltered locations on North-East to South-East aspects above 800 metres. Gully tops and corrie rims above 950 metres will be most affected. Moderately bonded deposits will be present on North and some South aspects above 800 metres. Small fragile cornices will be present. Many areas will have no snow, shallow snow or well bonded old snow. The avalanche hazard will be Considerable.", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "NE", "E", "SE" ], "elevation": { "lowerBound": "800" } }, { "problemType": "cornices", "aspects": [ "NE", "E", "SE" ], "elevation": { "lowerBound": "800" } } ], "bulletinID": "GB-SCT-13422", "customData": { "ALBINA": { "mainDate": "2026-03-30" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "700", "upperBound": "800" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "SW", "W", "NW" ], "elevation": { "lowerBound": "800", "upperBound": "1200" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "N", "S" ], "elevation": { "lowerBound": "800", "upperBound": "1200" }, "validTimePeriod": "all_day" }, { "mainValue": "considerable", "aspects": [ "NE", "E", "SE" ], "elevation": { "lowerBound": "800", "upperBound": "1200" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-03-29T00:00:00", "regions": [ { "regionID": "GB-SCT-5" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: Light snow showers overnight above 600 metres will become intermittent by the afternoon, with snow only settling above 850 metres. Strong North-North-Westerly winds at 900 metres, with gale force winds over the highest summits. Freezing level slowly rising from 600 metres to reach 900 metres by the end of the afternoon.\nObserved Weather Influences: Snowfall above 600 metres during the morning, turned to snow showers above 700 metres around mid-day. Gale force South-South-Westerly winds, veered Westerly by early afternoon and increased to storm force over the higher summits. The freezing level briefly rose to around 1000 metres at midday, quickly lowering back down to 800 metres during the afternoon.\nObservedSnowStability: Moderately to weakly bonded windslab has formed in wind sheltered locations on North through East to South-East aspects above 950 metres. Moderately bonded accumulations are present below this altitude and above 800 metres. Avalanche activity observed and another set of debris noted, on a Northerly aspect with a starting zone around 1030 metres. Many areas have either shallow, scoured or well bonded snow. The avalanche hazard is Considerable." }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-03-29T18:00:00", "endTime": "2026-03-30T18:00:00" } }, { "avalancheActivity": { "comment": "Forecast Snow Stability: Significant areas of moderately bonded windslab will remain, mainly on North-East to South-East aspects above 900 metres. Fresh deposits of windslab will accumulate in these areas overnight and through the morning. Some significant cornices exists above these aspects. At lower levels, and on windward aspects stability will be better. The avalanche hazard will be Considerable", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "NE", "E", "SE" ], "elevation": { "lowerBound": "900" } }, { "problemType": "cornices", "aspects": [ "NE", "E", "SE" ], "elevation": { "lowerBound": "1000" } } ], "bulletinID": "GB-SCT-13421", "customData": { "ALBINA": { "mainDate": "2026-03-30" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "600", "upperBound": "900" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "SW", "W", "NW" ], "elevation": { "lowerBound": "900", "upperBound": "1300" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "N", "S" ], "elevation": { "lowerBound": "900", "upperBound": "1300" }, "validTimePeriod": "all_day" }, { "mainValue": "considerable", "aspects": [ "NE", "E", "SE" ], "elevation": { "lowerBound": "900", "upperBound": "1300" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-03-29T00:00:00", "regions": [ { "regionID": "GB-SCT-3" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: Overnight snow showers easing through the day. Gale force Westerly winds will also ease slightly through the day. The freezing level will be around 700 metres.\nObserved Weather Influences: Heavy snowfall turned to rain below about 1000 metres during the morning as the freezing briefly rose to the higher summits. The afternoon was showery with the freezing level dropping to about 800 metres. Gale force winds were from the South-West.\nObservedSnowStability: Unstable windslab was deposited on mainly sheltered North to East aspects above 900 metres early morning. This went through a period of instability during the morning as the temperature rose. Fresh debris was noted below a number of gullies on Ben Nevis. There was some consolidation of the existing snowpack during the afternoon. However, fresh areas of windslab were being deposited on the locations mentioned above through the afternoon. The avalanche hazard is Considerable." }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-03-29T18:00:00", "endTime": "2026-03-30T18:00:00" } }, { "avalancheActivity": { "comment": "Forecast Snow Stability: Unstable windslab will exist in wind sheltered locations mainly above 850 metres, Greater accumulations will be in sheltered gullies and on slopes with a mainly North through East to Southerly aspect. Fragile cornices may exist in these locations, other aspects may be affected by cross loading. Stability on windward slopes will be better with a firm possibly icy surface forming on the older snow. The avalanche hazard will be Considerable.", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "N", "NE", "E", "SE", "S" ], "elevation": { "lowerBound": "850" } }, { "problemType": "cornices", "aspects": [ "N", "NE", "E", "SE" ], "elevation": { "lowerBound": "900" } } ], "bulletinID": "GB-SCT-13420", "customData": { "ALBINA": { "mainDate": "2026-03-30" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "500", "upperBound": "800" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "SW", "W", "NW" ], "elevation": { "lowerBound": "800", "upperBound": "1200" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "N", "S" ], "elevation": { "lowerBound": "800", "upperBound": "1200" }, "validTimePeriod": "all_day" }, { "mainValue": "considerable", "aspects": [ "NE", "E", "SE" ], "elevation": { "lowerBound": "800", "upperBound": "1200" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-03-29T00:00:00", "regions": [ { "regionID": "GB-SCT-4" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: New snow will affect the area mainly above 500 metres, winds will be Westerly strong to gale overnight veering West-North-West and decreasing fresh to strong through the day. The freezing level initially will be around 600 metres rising to 800 metres by evening.\nObserved Weather Influences: Heavy rain sleet and snow with strong to gale Westerly winds have affected the area. The freezing level rose this morning to around the highest tops with a lowering trend later to around 600 metres. Further snow showers heavy at times are expected through the afternoon.\nObservedSnowStability: Unstable accumulations of windslab are forming in wind sheltered locations, greatest accumulations are in sheltered gullies and on North through East to South-Easterly aspects mainly above 850 metres. A return to colder conditions is aiding the consolidation process within the older wet snowpack. The avalanche hazard is Moderate." }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-03-29T18:00:00", "endTime": "2026-03-30T18:00:00" } }, { "avalancheActivity": { "comment": "Forecast Snow Stability: Unstable windslab will be present above 800 metres on mainly North through East to South aspects. Areas most affected will be steep wind sheltered locations such as coire rims, ridge flanks and gully tops. Fragile cornices will also be found on these same aspects. The old snowpack will remain firm and stable throughout especially where exposed to the wind. The avalanche hazard will be Considerable.", "highlights": "" }, "avalancheProblems": [ { "problemType": "wind_slab", "aspects": [ "N", "NE", "E", "SE", "S" ], "elevation": { "lowerBound": "800" } }, { "problemType": "cornices", "aspects": [ "N", "NE", "E", "SE", "S" ], "elevation": { "lowerBound": "1000" } } ], "bulletinID": "GB-SCT-13419", "customData": { "ALBINA": { "mainDate": "2026-03-30" } }, "dangerRatings": [ { "mainValue": "low", "aspects": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ], "elevation": { "lowerBound": "500", "upperBound": "800" }, "validTimePeriod": "all_day" }, { "mainValue": "low", "aspects": [ "SW", "W", "NW" ], "elevation": { "lowerBound": "800", "upperBound": "1300" }, "validTimePeriod": "all_day" }, { "mainValue": "moderate", "aspects": [ "S" ], "elevation": { "lowerBound": "800", "upperBound": "1300" }, "validTimePeriod": "all_day" }, { "mainValue": "considerable", "aspects": [ "N", "NE", "E", "SE" ], "elevation": { "lowerBound": "800", "upperBound": "1300" }, "validTimePeriod": "all_day" } ], "publicationTime": "2026-03-29T00:00:00", "regions": [ { "regionID": "GB-SCT-2" } ], "snowpackStructure": { "comment": "Forecast Weather Influences: Fresh snow fall is expected throughout the forecast period, gradually clearing by late afternoon. Gale force winds, initially from the West will veer West-North-West and ease slightly. The freezing level will be around 600 metres rising to 900 metres through the day.\nObserved Weather Influences: Fresh snow fall during the day accompanied with storm force Westerly winds. The freezing level was around 700 meters.\nObservedSnowStability: Areas of unstable windslab are present on mainly North through East to South-East aspects above 800 metres. Wind sheltered locations such as ridge flanks, coire rims and gully tops most affected. Fragile cornices are present on the same aspects. Elsewhere the old snowpack remains firm and stable. The avalanche hazard is Considerable." }, "source": { "provider": { "name": "SAIS", "website": "https://www.sais.gov.uk" } }, "validTime": { "startTime": "2026-03-29T18:00:00", "endTime": "2026-03-30T18:00:00" } } ] }