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South Grampian and Southeast Highlands - Mountain weather forecast

Weather warnings

Warnings affecting South Grampian and Southeast Highlands over the next 5 days

Confidence

High for an unsettled period with several wet and windy periods. High for weekend detail. Much lower for detail Monday onwards.

  • Saturday
  • Sunday
  • Further outlook

Saturday 18 August 2018

Weather hazards

Gales High 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

Poor visibility Medium 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

Storm force winds Low likelihood Show detail

Storm force winds (gusts over 70mph) make walking very strenuous with any mobility virtually impossible over exposed ground. Where these conditions occur there is a high risk of being blown over and even standing may be impossible at times with a risk of being blown off one’s feet. Basic tasks such as using a map, eating, putting on extra clothing or communication become extremely difficult away from any shelter.

Learn more about storm force winds

Strong sunlight Low likelihood Show detail

Harmful UV levels from sunlight increase with altitude giving a greater risk of sunburn and eye damage, even on some overcast days. On breezy days, the cooling effect of wind on exposed skin may disguise any feeling of sunburn until it is too late. If there is snow cover, glare increases the effect of UV rays especially on the eyes. It is advisable to wear sun block, protective clothing such as a long-sleeved top and hat and have good quality eye protection.

Learn more about strong sunlight

Headline

Very windy with widespread gales. Bright and often dry in north but duller and damp in south.

Weather

06:00 09:00 12:00 15:00 18:00 21:00
Weather at 800m Light shower day Sunny intervals Light shower day Cloudy Cloudy Light rain
Chance of precipitation at 800m 20% 20% 30% 30% 20% 50%

Wind speed and direction

06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
1100m SW 39 45 W 40 49 W 39 49 W 34 42 W 25 31 W 18 22
900m SW 29 36 W 32 41 W 34 44 W 30 38 W 22 28 W 15 19
600m SW 21 33 W 23 38 W 26 41 W 20 34 W 16 26 W 8 14
300m SW 14 30 W 19 38 W 20 40 W 15 30 W 10 22 W 6 14
Glen SW 12 25 W 14 29 W 19 36 W 16 31 W 10 20 W 4 11

Temperature

06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
1100m 5 ° 5 ° 7 ° 7 ° 6 ° 5 °
900m 7 ° 8 ° 9 ° 10 ° 9 ° 7 °
600m 10 ° 11 ° 13 ° 13 ° 11 ° 10 °
300m 13 ° 14 ° 16 ° 16 ° 14 ° 12 °
Glen 14 ° 15 ° 18 ° 18 ° 16 ° 13 °

Feels like temperature

06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
1100m -2 ° -2 ° 1 ° 2 ° 1 ° 1 °
900m 2 ° 2 ° 5 ° 5 ° 4 ° 4 °
600m 6 ° 7 ° 9 ° 9 ° 8 ° 8 °
300m 10 ° 11 ° 12 ° 13 ° 12 ° 11 °
Glen 11 ° 13 ° 14 ° 14 ° 14 ° 12 °

Freezing level

06:00 09:00 12:00 15:00 18:00 21:00
Freezing level i 3,400 m 2,400 m 1,800 m 1,800 m 1,700 m 2,800 m
Sunrise: 05:47
Sunset: 20:47
Moon phase: First quarter

Weather

After dawn, across Aberdeenshire and Angus hills, the Cairngorms and as far south as the north Perthshire hills: bright with sunny intervals and mostly dry. Longest sunny spells over Angus hills and Cairngorms and staying so through till early evening. In contrast across the Ochils and south Perthshire hills much cloudier with sporadic light rain, and wet at times with hill fog around Callander and Ben Lawers, then during the late evening light rain develops, heavy before midnight.

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

In south and southwest 50% with occasional cloud moving across summits above 800-900m and patches 600m in rain, reducing 20% by dusk as cloud lowers. In northeast 90% with patchy cloud mostly above summits.

Visibility

Very good in northeast with clarity to see distant hills but further south occasionally moderate in rain.

Met Office Aberdeen meteorologist's view

Widespread sustained gales till late afternoon, isolated gusts 70mph possible Cairngorm summits where a hindrance to progress. In sunny spells on summits not feeling as cold as 'feels like' temperatures would suggest.

Sunday 19 August 2018

Sunrise: 05:49
Sunset: 20:45
Moon phase: First quarter

Weather

Starting dull and wet with some heavy rain in east together with hill fog. However drier conditions spread east by early afternoon and skies slowly brighten with hill fog lifting; some sunny intervals later, especially in west.

Maximum wind speed expected

15 or 20mph with direction variable.

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

Around 10% at dawn with extensive low cloud but improving 30% by lunchtime as cloud lifts to nearer 700-1000m and improving 60% later with some gaps in cloud.

Temperature

  • At 800m 7C rising 11C.
  • Glen 14 rising 18C.
  • Freezing level 2700M.

Visibility

Mostly poor at dawn slowly improving moderate during morning, perhaps good later.

Monday 20 August 2018

Sunrise: 05:51
Sunset: 20:42
Moon phase: First quarter

An unsettled day with cloud thickening to bring some rain and hill fog at times. Light or moderate winds.

Tuesday 21 August 2018

Sunrise: 05:53
Sunset: 20:40
Moon phase: First quarter

Dry conditions initially, some sun and humid with haze, but thickening cloud and rain will develop later.

Wednesday 22 August 2018

Sunrise: 05:55
Sunset: 20:37
Moon phase: Waxing gibbous

Early rain and hill fog clearing then much brighter with sunny intervals. Freshening Northwest winds.

Issued at:
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Includes South and East Cairngorms National Park, Aberdeenshire and Angus hills, Ben Vrackie, Ben Lawers, Loch Tay and Ochils

The Ochil Hills are a long range of steeply sided, round topped hills, stretching 25 miles from the Firth of Tay to Stirling. There are many peaks over 600 metres offering splendid views across central Scotland and to the north, with Ben Cleuch the highest at 721 metres.

Loch Tay is a freshwater loch in the central highlands and is around 15 miles long. At around 150 metres deep it is one of the deepest in Scotland. At 1,214 metres Ben Lawers is the highest point along the ridge on the north shore that includes seven Munros (mountains over 3,000 ft).

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

 

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