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West Highland: latest pressure

Thursday, 9 September 2010: dawn to dusk

Printable view Forecast issued: 1744 on Thursday, 9 September 2010

Overview for Friday

Cloudy with hill fog and occasional rain, summit gales, brighter later.

Hazards	Risk	Explanation
Blizzards	No Risk
Heavy snow	No Risk
Storm force winds	No Risk
Gales	Medium	Gusts 50 to 60mph on higher tops.
Severe chill effect	No Risk
Persistent and extensive hill fog	High	(below 600m) Extensive until mid afternoon in the south.
Thunderstorms	No Risk
Heavy persistent rain	Low	Risk over Argyll and the Trossachs.
Strong Sunlight	Low	Some sunshine breaking through later.

Key to Hazards

Weather summary and probability of precipitation for Friday
Dawn to 0900	0900 to 1200	1200 to 1500	1500 to dusk
Light rain	Heavy Rain	Light rain showers	Sunny intervals
80%	80%	70%	40%

Detailed mountain weather forecast: West Highlands

Friday
Saturday
Outlook
Useful Links

Friday

Weather

The morning and early afternoon will be mainly cloudy with some rain, most persistent across the Southern Highlands, from the Trossachs across to Argyll. The rain will be more intermittent and less heavy towards the North Highlands, with some brighter spells on low ground. More generally brighter conditions will spread from the west to most areas later with some sunny intervals breaking through, though still with a few showers.

Visibility

(below the cloud) Moderate in rain, locally poor in heavier rain in the south, becoming mainly good later.

Hill fog

Extensive above 600 to 900m but as low as 300m in the south. Later, becoming more occasional, though may remain persistent over more northwestern hills at higher levels.

Maximum winds above 600m

Southerly 40 gusts 55mph, veering towards the west in the afternoon.

Temperature

Glens	Plus 11 Celsius rising to Plus 17 Celsius as it brightens up.
900 m	Plus 9 Celsius rising to Plus 12.
Freezing level	Above the summits.

Saturday

Weather

Starting mainly dry but rather cloudy with some hill fog, and a few showers across Argyll. Showers will develop more widely during the day and will become heavy in places especially across the Southern Highlands.

Visibility

(below the cloud) Moderate or good, locally poor in heavier showers.

Hill fog

Occasional above 700m and rather persistent above 900m, patches to 450m in showers.

Maximum winds above 600m

Southerly 20mph increasing 30 gusts 45mph.

Temperature

Glens	Plus 10 Celsius rising to Plus 16 Celsius.
900 m	Plus 11 Celsius.
Freezing level	Above summits.

Outlook

Sunday

Bright or sunny intervals and a few showers, with more persistent rain reaching the Northwest Highlands later. Hill fog will become more extensive there by evening. Strengthening westerly winds with severe summit gales later.