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Southwest Highlands - Mountain weather forecast

Weather warnings

Warnings affecting Southwest Highlands over the next 5 days

Confidence

High confidence on the general weather story for the next days.

  • Monday
  • Tuesday
  • Further outlook

Monday 23 April 2018

Weather hazards

Gales Medium likelihood Hide detail

Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.

Learn more about gales

Severe chill effect Medium likelihood Show detail

Wind significantly lowers the ‘feels-like’ temperature relative to the actual temperature, with even moderate winds significantly adding to the chilling effect. Strong winds can result in a severe and debilitating wind chill many degrees below the actual temperature. This effect will be enhanced in rain or wet snow. Without protection, prolonged exposure could result in frost nip or frostbite on exposed parts of the body and/or hypothermia.

Learn more about severe chill effect

Poor visibility Low likelihood Show detail

Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.

Learn more about poor visibility

Headline

Cold and windy. Showers in the morning. Rain in the afternoon.

Weather

06:00 09:00 12:00 15:00 18:00 21:00
Weather at 800m Light rain Light rain Light rain Heavy rain Heavy rain Partly cloudy night
Chance of precipitation at 800m 20% 20% 30% 80% 90% 20%

Wind speed and direction

06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
1300m SW 32 38 SW 31 38 SW 31 39 SW 35 43 S 43 53 SW 42 52
900m W 25 30 W 25 31 SW 25 32 SW 24 30 SW 31 41 W 31 41
600m SW 27 32 SW 24 30 SW 26 35 SW 25 31 SW 38 47 SW 37 47
300m SW 11 16 SW 13 18 SW 14 23 SW 12 18 SW 19 31 W 18 31
Glen W 11 23 W 10 21 SW 11 25 SW 10 21 SW 13 30 W 17 37

Temperature

06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
1300m -1 ° -1 ° -1 ° -1 ° 2 ° -1 °
900m 1 ° 2 ° 2 ° 2 ° 4 ° 1 °
600m 4 ° 4 ° 5 ° 4 ° 6 ° 4 °
300m 6 ° 6 ° 7 ° 6 ° 8 ° 6 °
Glen 8 ° 10 ° 11 ° 8 ° 9 ° 8 °

Feels like temperature

06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
1300m -10 ° -10 ° -9 ° -9 ° -6 ° -11 °
900m -6 ° -5 ° -4 ° -5 ° -3 ° -6 °
600m -3 ° -2 ° -1 ° -2 ° 0 ° -3 °
300m 2 ° 3 ° 4 ° 2 ° 4 ° 2 °
Glen 6 ° 7 ° 8 ° 5 ° 6 ° 5 °

Freezing level

06:00 09:00 12:00 15:00 18:00 21:00
Freezing level i 1,100 m 1,100 m 1,100 m 1,100 m 1,700 m 1,000 m
Sunrise: 05:54
Sunset: 20:43
Moon phase: First quarter

Weather

Mostly cloudy with a few brighter spells in the morning, occasional showers falling as sleet above 1000m. Cloud will thicken in the afternoon with outbreaks of rain reaching the west coast shortly after midday and spreading east through the afternoon. Turning dry with clear spells in the evening, but further rain or showers overnight.

Chance of cloud-free mountain/hill tops at 800m

60% in the morning with occasional patches above 700m. Becoming 10% near the coast, 30% in the east, through the afternoon with cloud frequent above 600m, 400m near the coast.

Visibility

Good but dropping to moderate in rain or sleet, often poor on the tops in the afternoon.

Met Office Aberdeen meteorologist's view

Gales will develop across the tops through the evening. Feeling cold with afternoon rain enhancing wind chill effect.

Tuesday 24 April 2018

Sunrise: 05:51
Sunset: 20:45
Moon phase: First quarter

Weather

Some clear spells overnight with scattered showers of sleet. A mixture of sunny spells and scattered showers is expected through the morning and afternoon, with heavier showers in west. Drier but cloudier in the evening.

Maximum wind speed expected

West or Southwest winds 30mph gusting 50mph at first, dropping to 15mph by the very end of the day.

Chance of cloud-free mountain/hill tops at 800m

60%, frequent patches of cloud above 700m, mainly near showers.

Temperature

  • At 800m Around Plus 1 Celsius.
  • Glen Plus 2 Celsius in the morning, rising to Plus 12 Celsius in the afternoon.
  • Freezing level Around 1000m.

Visibility

Generally very good, but dropping to moderate in showers.

Wednesday 25 April 2018

Sunrise: 05:49
Sunset: 20:47
Moon phase: First quarter

A mixture of sunny spells and afternoon showers, these wintry on tops. Fresh to strong southwest winds. Freezing level at 900m.

Thursday 26 April 2018

Sunrise: 05:46
Sunset: 20:49
Moon phase: Waxing gibbous

Another day with scattered showers especially in the afternoon. Fresh to strong southwest winds. Freezing level at 800m.

Friday 27 April 2018

Sunrise: 05:44
Sunset: 20:51
Moon phase: Waxing gibbous

A dry start but a few showers will develop in the afternoon. Easing winds. Freezing level at 800m.

Issued at:
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Includes Ben Nevis, Glen Coe and the rest of Lochaber, Argyll including the Isles, Loch Lomond, Trossachs and Arran

The South West Highlands is an extensive area of mountains, moorland, islands and sea which is home to several distinctly different cultures. The West Highland Way was Scotland's first long distance route and remains by far the most popular. It stretches for 94 miles from Milngavie on the edge of Glasgow to Fort William at the foot of Ben Nevis.

The South West Highlands area is very sparsely populated, with many mountain ranges including the highest mountain in the British Isles, Ben Nevis, standing at 1,344 metres. This mountain is a popular destination attracting an estimated 100,000 ascents a year. The 700 metre cliffs of the north face are among the highest in the UK, providing classic scrambles and rock climbs of all difficulties for climbers and mountaineers.

For snow and avalanche hazard forecasts please visit Sportscotland Avalanche Information Service

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