West Highlands

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.

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Viewing Forecast For

West Highlands
Wednesday 12th August 2020
Last updated Tuesday 11th August 2020 at 3:44 PM

Summary for all mountain areas

Very warm or hot by afternoon and very high humidity - anticipate dehydration and possible sunburn. Scattered thunderstorms will drift about slowly, mainly England and Wales, bringing locally torrential rain.

Headline for West Highlands

Very warm with hazy sunshine; risk thunderstorm afternoon.

How windy? (On the Munros)

Winds varying in direction, 10mph or less.

Effect of the wind on you?

Negligible.

How Wet?

Risk thunderstorms well inland

Overnight thunderstorms will have cleared by dawn. Then dry much of region, although in afternoon risk scattered thunderstorms, most likely well inland from near Loch Lomond north to central highlands.

Cloud on the hills?

Extensive after dawn. Will improve: most summits will clear.

After dawn: very varied; some areas foggy from lower slopes or glens up whilst in others fog higher up, and some summits above low cloud. Will progressively improve as most higher summits clear. Banks of fog likely to return temporarily in and after rain.

Chance of cloud free Munros?

30% rising to 90% by early afternoon

Sunshine and air clarity?

Patchwork of hazy sunshine developing. Visibility improving although a haze most or all day.

How Cold? (at 900m)

15C.

Freezing Level

Above the summits.

Viewing Forecast For

West Highlands
Thursday 13th August 2020
Last updated Tuesday 11th August 2020 at 3:44 PM

How windy? (On the Munros)

Direction likely to vary 10mph or less. On Arran northeasterly, up to 20mph - not necessarily on higher slopes.

Effect of the wind on you?

Mostly negligible

How Wet?

Rain unlikely

Largely or completely dry - albeit mostly likely western mountains risk isolated thunderstorms in afternoon. These giving locally intense rain, lasting up to an hour.

Cloud on the hills?

Clearing most western summits

Cloud extensive from dawn, although toward the west coast only patches on higher tops - where by late morning, summits cloud free. Elsewhere the improvement slower, although most summits cloud free by mid afternoon.

Chance of cloud free Munros?

60%

Sunshine and air clarity?

Cloud breaking, particularly western mountains to give patches of sun. Continuing hazy.

How Cold? (at 900m)

Varied, as low as 7C where in cloud, but up to 14C near west coast in afternoon.

Freezing Level

Above the summits.

Viewing Forecast For

West Highlands
Friday 14th August 2020
Last updated Tuesday 11th August 2020 at 3:44 PM

How windy? (On the Munros)

Direction varied; 10mph or less although near central belt, particularly Arran northeasterly 15 or 20mph.

Effect of the wind on you?

Mostly negligible

How Wet?

Rain very unlikely

Small risk of a few bursts of rain near central belt, most likely only Arran, and remote risk of a thunderstorm western mountains afternoon.

Cloud on the hills?

Very little by late morning

Ribbons of fog from some valleys up after dawn, in some areas extensive. Nevertheless, some summits cloud free (in places above the fog). The cloud will all or nearly all clear by mid or late morning.

Chance of cloud free Munros?

70%

Sunshine and air clarity?

Banks of cloud will tend to break up to give sunshine. Haze very likely lifting to give excellent, possibly higher up superb visibility.

How Cold? (at 900m)

11C, rising to 17C.

Freezing Level

Above the summits.

Planning Outlook

Remaining warm and particularly England and Wales humid. However, thundery rain will become mostly confined to Wales, whilst the Scottish Highlands are extensively dry. Overall extensive sunshine, although banks of very low cloud, mainly more eastern mountains, including those in east Wales. A change to wetter and gradually less warm conditions across Britain is likely early next week.