West Highlands Forecast
Western Highlands accessible from, and south of, Glenfinnan (Road to the Isles) and Glen Spean (includes Creag Meagaidh). This area include Ben Nevis and the mountains around Glencoe. In the east, includes Ben Alder south to Loch Lomond and Trossachs NP. Includes Arran and Mull.
Forecast last updated on Wednesday 17th December 2014 at 1:51pm
Summary for all mountain areas
Widespread upland gales, strongest in Snowdonia. Extensive low cloud and persistent rain, particularly western mountains south from Loch Lomond. Frequent snow showers north-west Scotland, but largely dry in the eastern Highlands.
Headline for West Highlands
Upland gales. Frequent snow and rain western mountains.
How windy? (On the Munros)
Westerly 40 to 55mph, lightest Arran and lower summits Loch Lomond NP.
Effect of wind on you?
Difficult walking where exposed. Any mobility may be difficult on higher tops. Severe wind chill.
Frequent snow and rain
Near constant precipitation on western mountains, most extensive in the morning and toward Loch Lomond NP & Arran. Later from the north breaking into showers, but these may still be very frequent. Rain below about 500m in Lochaber, perhaps 600-700m further south.
Cloud on the hills?
Blanket low cloud Loch Lomond NP & Arran, particularly morning. Elsewhere, varying cloud base: often 500-600m near rain/snow, but breaks to 1000m, mainly north and east of Rannoch Moor.
Chance of cloud free Munros?
10% Loch Lomond NP & Arran; 20% western Lochaber; 30% well inland.
Sunshine and air clarity?
Sunshine unlikely most or all day; perhaps occasional glimpses NE Lochaber later. Hazy, and appalling visibility in cloud and snow.
How Cold? (at 900m)
-1 or -2C north; 0 or 1C south
700 to 900m; highest toward south.
All mountain areas of Britain from Friday 19th December 2014
Frequent upland gales through to Christmas, particularly Scottish Highlands, although a lull developing during Saturday as a transient ridge of high pressure crosses the British Isles. Precipitation almost daily, particularly western mountains. Freezing levels rising above most mountain tops on Sunday as rain moves through, then frequent below freezing on Scottish summits next week. Elsewhere, most precipitation rain with freezing levels often above higher tops (although 600-800m Friday & Saturday). Signs of turning widely colder post-Christmas.