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 Thursday 18th December 2014 at 1:51pm
Summary for all mountain areas
Widespread severe upland gales, reaching storm force across the Scottish Highlands. Frequent snow and hail showers on western mountains, threat of lightning, particularly northern Scotland. Fewer showers and more sunshine England & Wales.
Headline for West Highlands
Storm force upland winds. Frequent snow; risk of lightning.
How windy? (On the Munros)
Westerly 55 to 70mph; gusts 85mph.
Effect of wind on you?
Buffeting from low levels up, and any mobility very difficult on higher areas. Severe wind chill.
Frequent snow and hail; risk lightning
Showers, often one after another on western mountains, of hail or snow from just above glens up, particularly away from coast, giving whiteout. Risk thunder.
Cloud on the hills?
Variable; rarely clearing tops
Rapidly changing cloud bases on western mountains; rarely clearing the summits, and intermittently dropping to below 600m during showers. Occasionally lifting to 1000m toward central highlands.
Chance of cloud free Munros?
20% west; 40% central highlands.
Sunshine and air clarity?
Bursts of sun, mostly well inland. Visibility good away from showers, but suddenly reduced to near zero by cloud and snow. Slight haze.
How Cold? (at 900m)
500m north; 700m Loch Lomond & Arran.
All mountain areas of Britain from Saturday 20th December 2014
Few days without gales on the mountains up to Christmas. Precipitation almost daily, particularly western mountains. Freezing levels rising above most mountain tops on Sunday, resulting in a significant thaw. Next week intermittent cycles of freeze and thaw, but frequently below freezing on Scottish summits. Indications favour colder air spreading southwards around or after Christmas Day, with freezing levels dropping significantly, leaving most ground frozen from just above most valleys upwards, and snow falling to lower slopes.