West Highland mountain area forecast

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Monday, 22 March 2010: dawn to dusk

Forecast issued: 1706 on Sunday, 21 March 2010

Latest pressure

UK latest pressure
Updated: 0407 on Mon 22 Mar 2010

Digital Map Data:
© Collins Bartholomew Ltd (2006)

Overview for Monday

An unsettled day with rain clearing to blustery showers. The showers heavy and wintry over the summits. Gale to storm force winds and a severe wind chill.

Hazards Risk Explanation
Blizzards Medium Temporary in heavy snow showers around summits
Heavy snow Medium Heavy snow showers expected
Storm force winds High Gusts to 80mph expected over exposed ridges and summits.
Gales High Gusts to 80mph expected over exposed ridges and summits.
Severe chill effect High In gale to storm force winds
Persistent and extensive hill fog High At first, occasional or widespread 600m, patches 300m
Thunderstorms Medium Risk in heavy showers
Heavy persistent rain High At first.

Key to Hazards

Weather summary and probability of precipitation for Monday
Dawn to 0900 0900 to 1200 1200 to 1500 1500 to dusk
Heavy Rain
Heavy Rain
Sunny intervals
Sunny intervals
Sleet showers
Sleet showers
Sleet showers
Sleet showers
70-90% 50% 60% 60%

Detailed mountain weather forecast: West Highlands

Monday

Weather

Cloudy with outbreaks of rain at first, heavy and persistent at times, particularly over Argyll and the Trossachs. Becoming drier and brighter during the morning. However, occasional heavy and blustery showers following. The showers wintry above 800m, temporary blizzards conditions expected over the summits.

Visibility

Moderate or poor at times during the morning, mostly very good or excellent in the afternoon, but lowering greatly in showers with temporary whiteout conditions over the summits.

Hill fog

Occasional or widespread 600m at first, patches 300m with navigational problems. Patches 900m in the afternoon out with showers.

Maximum winds above 600m

South or Southeast 40 to 60 gusts 80mph over ridges and summits at first, veering southwest 30 to 40 gusts 60mph by midday.

Temperature

Glens 5 to 10 Celsius
900 m 5 Celsius lowering to Zero Celsius.
Freezing level Above the summits at first falling to 900m

Tuesday

Weather

Mainly cloudy with outbreaks of rain, heavy and persistent at times over the Cuillins and Northwest Highlands. Some drier and brighter conditions expected further south and east.

Visibility

Good or very good, but moderate or poor in rain.

Hill fog

Occasional 600m, patches 300m in the west

Maximum winds above 600m

South or Southwest 25 to 40mph, occasionally 50mph gusts 70mph over the Cuillins.

Temperature

Glens 4 rising to 11 Celsius
900 m 2 to 5 Celsius
Freezing level Above the summits.

Outlook

Wednesday

Mostly cloudy with outbreak of rain and drizzle with extensive hill fog. It could become drier and brighter from the west in the afternoon. Fresh to strong southerly winds over the summits, easing later.

Thursday

Some brightness possible at first, particularly in the north. However, mostly cloudy with outbreaks of rain, turning heavier and more persistent during the day. Sleet or snow possible over the highest summits. Strengthening easterly winds

Friday

Cloudy with outbreaks of rain and extensive hill fog. Sleet or snow possible over the highest summits. Fresh to strong easterly winds over the summits.

No weather warnings in force for Highlands & Eilean Siar

Weather forecast for Highlands & Eilean Siar

No weather warnings in force for Strathclyde

Weather forecast for Strathclyde

No weather warnings in force for Central Tayside & Fife

Weather forecast for Central Tayside & Fife