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.
West Highlands
Wednesday 12th August 2020
Last updated
Tuesday 11th August 2020 at
3:44 PM
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.
Very warm with hazy sunshine; risk thunderstorm afternoon.
Winds varying in direction, 10mph or less.
Negligible.
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.
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.
30% rising to 90% by early afternoon
Patchwork of hazy sunshine developing. Visibility improving although a haze most or all day.
15C.
Above the summits.
West Highlands
Thursday 13th August 2020
Last updated
Tuesday 11th August 2020 at
3:44 PM
Direction likely to vary 10mph or less. On Arran northeasterly, up to 20mph - not necessarily on higher slopes.
Mostly negligible
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.
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.
60%
Cloud breaking, particularly western mountains to give patches of sun. Continuing hazy.
Varied, as low as 7C where in cloud, but up to 14C near west coast in afternoon.
Above the summits.
West Highlands
Friday 14th August 2020
Last updated
Tuesday 11th August 2020 at
3:44 PM
Direction varied; 10mph or less although near central belt, particularly Arran northeasterly 15 or 20mph.
Mostly negligible
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.
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.
70%
Banks of cloud will tend to break up to give sunshine. Haze very likely lifting to give excellent, possibly higher up superb visibility.
11C, rising to 17C.
Above the summits.
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.