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.

Viewing Weather Forecast for Monday 24th April 2017
Forecast last updated on Monday 24th April 2017 at 7:07am

Today | Tuesday | Wednesday

Summary for all mountain areas

A cold front passing southwards brings a marked change to Arctic air. Heavy showers of snow and hail spread from the north, merging into constant precipitation for several hours in Scotland. Winds up to gale force. Whiteout and severe wind chill Scottish mountains.

Headline for West Highlands

Very cold. Snow & hail at times constant. Periods of gales.

How windy? (On the Munros)

Wind will vary considerably and abruptly: northwesterly, frequently 20-30mph, but particularly middle of day into afternoon, for several hours up to 55mph.

Effect of wind on you?

Occasionally small, but expect periods of very difficult walking and severe wind chill.

How Wet?

Frequent hail & snow, setting in for several hours. Risk lightning.

Ranging from sudden heavy but fairly brief hail and snow showers with risk thunder to an hour or two of almost constant sometimes heavy snow, giving whiteout. The most severe conditions focused on middle of day northern areas, then transferring southward during afternoon.

Cloud on the hills?

Mostly confined to higher tops

Sometimes the summits nearly all cloud free, particularly Loch Lomond NP. But expect sudden changes; near showers cloud temporarily below 600m, and sometimes constant cloud above about 500m for an hour or two.

Chance of cloud free Munros?

40%

Sunshine and air clarity?

Bursts of sunshine and sometimes excellent visibility. But periods of dense fog on the hills, giving near zero visibility in snow/blowing snow.

How Cold? (at 900m)

Varying between -2 and -5C. Where directly exposed to strongest wind, feeling like -20 Celsius.

Freezing Level

Varying between temporarily 300m to most often 500 to 700m.

Planning Outlook

All mountain areas of Britain from Tuesday 25th April 2017

An Arctic air mass encompasses the British Isles bringing winter-like conditions during midweek. Freezing levels will be very low. Widespread snow and hail showers, sometimes frequent, or near constant northern Scotland. Significant wind chill. Less cold from about Thursday onward as winds back westerly. Frontal systems moving in from the Atlantic are likely to bring periods of rain and upland gales heading into the May Day weekend, although a gradual improvement may develop.

In association with
Mountaineering Council of Scotland sportscotland Association of Mountaineering Instructions