Cairngorms NP and Monadhliath Forecast
Cairngorms National Park and Monadhliath. Also includes the Ben Alder area hills between Loch Ericht and Loch Laggan.
Viewing Weather Forecast for Friday 27th November 2015
Forecast last updated on Friday 27th November 2015 at 12:35pm
Summary for all mountain areas
Widespread upland gales or near gales either side of an active cold front. The front will bring an abrupt transition from the northwest, after which snow will fall to a few hundred metres. Extensive low cloud. The change will reach S Wales and S Pennines only late in day.
Headline for Cairngorms NP and Monadhliath
Upland gales or near gales. Rain, then snow, hail and risk thunder.
How windy? (On the Munros)
Southwesterly 50 gusts 70mph post dawn but by late morning or midday westerly 35 or 40mph.
Effect of wind on you?
Walking difficult where exposed on higher areas, particularly morning. Significant wind chill.
Rain; suddenly snow, then easing
Rain for several hours morning, this suddenly heavy and abruptly changing to snow as low as 400m, giving whiteout. The rain then over a couple of hours gradually ceasing. But then snow and hail showers. Small risk thunder.
Cloud on the hills?
Extensive higher areas
Cloud forming above 750-900m, but occasionally below 500m southern Cairngorms NP. Into afternoon, cloud base quickly changing from rarely below 600 near showers to 900 to 1100m, highest Cairngorms and Deeside.
Chance of cloud free Munros?
Sunshine and air clarity?
Bursts of sunshine afternoon Frequent fog higher areas, and appalling visibility where also in snow. Intermittently very good lower areas.
How Cold? (at 900m)
5C suddenly dropping to -2C mid to late morning and then to -3 or perhaps -4C by dusk.
Above summits post dawn; then by late morning suddenly 650m, and 500m by dusk.
All mountain areas of Britain from Saturday 28th November 2015
A week to perhaps a fortnight of frequent upland gales and sometimes storm force winds, and particularly on western mountains precipitation at some stage almost daily. Considerable rainfall in total mainly western mountains, particularly per the next 7 days. Freeze-thaw cycles will occur on the Scottish Munros (allowing snow to accumulate on higher areas), whilst further south, higher summits will occasionally be below freezing point, but lying snow fairly transient.