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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 showery conditions through the weekend and generally light winds and a largely fine, dry day Monday. Confidence falls Tuesday with uncertainties regarding timing of approaching Atlantic fronts.

  • This evening
  • Friday
  • Saturday
  • Further outlook

Thursday 26 April 2018

Sunset: 20:45
Moon phase: Waxing gibbous

Late sunny then clear spells with showers dying out. Westerly gales easing

Friday 27 April 2018

Weather hazards

Severe chill effect Medium likelihood Hide 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

Strong sunlight Medium 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

Heavy snow Low likelihood Show detail

Heavy snow can lead to rapid changes in underfoot conditions and paths may become treacherous or hidden. It also brings very poor visibility and often makes navigation much more challenging. When deep snow accumulates progress is often time consuming and strenuous, significantly affecting the distance one can travel on foot. Deep drifts can develop if snow is combined with strong winds. A heightened avalanche risk is possible and avalanche reports should be consulted where available.

Learn more about heavy snow

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

Thunderstorms Low likelihood Show detail

Lightning is a significant mountain hazard which can result in serious injury or death. Mountain terrain often leaves one highly exposed to lightning strikes. Hail may give unpleasant conditions with torrential rain and localised flash flooding also possible, mainly in Summer months.

Learn more about thunderstorms

Heavy persistent rain Low likelihood Show detail

Heavy and persistent rain can lead to drenched clothing and footwear with waterproofs often becoming soaked through, especially if accompanied by strong winds. This can lead to significant loss of body heat and an increased likelihood of hypothermia. Terrain may turn increasingly boggy underfoot while streams can flood and become impassable. There may also be a risk of flooding in valleys or glens. If there is snow cover, a heightened avalanche hazard is possible and avalanche reports should be consulted where available.

Learn more about heavy persistent rain

Headline

Bright day with sunshine and occasionally heavy showers, with snow on summits.

Weather

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather at 800m Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sleet shower day Sleet shower day Sleet shower day Partly cloudy night
Chance of precipitation at 800m 20% 10% 10% 10% 60% 60% 40% 20%

Wind speed and direction

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
1100m W 24 30 W 21 26 W 16 20 NW 8 12 S 6 10 W 8 12 NE 5 8 N 8 10
900m W 18 24 W 14 20 W 11 16 NW 7 12 S 6 10 W 7 12 NE 5 8 N 6 8
600m W 14 23 W 12 20 W 10 16 NW 6 10 N 6 10 SW 7 11 E 5 9 NE 3 6
300m W 6 16 W 5 13 W 5 12 NW 6 11 NW 4 9 E 7 13 E 6 11 N 3 6
Glen W 6 13 W 3 10 SW 4 9 NW 6 12 NW 5 10 NE 9 16 E 5 10 NE 3 6

Temperature

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
1100m -2 ° -3 ° -3 ° -2 ° 0 ° 0 ° -1 ° -3 °
900m 0 ° -1 ° -1 ° 1 ° 2 ° 2 ° 1 ° -1 °
600m 2 ° 1 ° 1 ° 4 ° 5 ° 5 ° 2 ° 1 °
300m 4 ° 3 ° 3 ° 7 ° 9 ° 7 ° 4 ° 3 °
Glen 4 ° 2 ° 4 ° 8 ° 10 ° 8 ° 5 ° 3 °

Feels like temperature

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Altitude above mean sea level
1100m -10 ° -10 ° -9 ° -6 ° -3 ° -4 ° -4 ° -7 °
900m -7 ° -7 ° -6 ° -3 ° -1 ° -2 ° -2 ° -4 °
600m -3 ° -4 ° -3 ° 1 ° 3 ° 2 ° 0 ° -1 °
300m 1 ° 0 ° 1 ° 5 ° 7 ° 5 ° 2 ° 2 °
Glen 2 ° 0 ° 2 ° 6 ° 9 ° 6 ° 3 ° 2 °

Freezing level

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Freezing level i 800 m 700 m 700 m 700 m 800 m 900 m 800 m 700 m
Sunrise: 05:37
Sunset: 20:47
Moon phase: Waxing gibbous

Weather

Isolated showers, falling increasingly as snow above about 750m, across the far west through the early hours, otherwise dry with clear spells. Most places start dry with some long sunny spells but cloud soon starts to bubble up with showers developing from mid-morning. The showers become heavy and possibly thundery at times and above about 750m fall increasingly as snow. With winds becoming mainly light the showers will be slow moving, so if you catch one it may be with you for some time. The showers then gradually die out through the evening.

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

Around 90% at dawn with only small amounts of cloud below summit level falling to around 60% by early afternoon with occasional or periods of cloud developing around 750m and lowering to 600m at times in heavier showers.

Visibility

Very good or excellent falling to several kilometres in showers and perhaps a kilometre or less in snow showers.

Met Office Aberdeen meteorologist's view

Significant wind-chill expected at height, especially through the early hours. Temperatures in glens likely to be close to freezing at first.

Saturday 28 April 2018

Sunrise: 05:34
Sunset: 20:50
Moon phase: Waxing gibbous

Weather

Another day of sunny or clear spells and slow moving, occasionally heavy showers, once again falling increasingly as snow above about 750m. Heaviest showers likely to be towards Ben Lawers and Schiehallion.

Maximum wind speed expected

Northerly or northeasterly winds generally 15mph or less

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

Around 90% at dawn with only small amounts of cloud below summit level falling to around 60% by early afternoon, especially across more southwestern hills, with occasional or periods of cloud developing around 750m and lowering to 600m at times in heavier showers.

Temperature

  • At 800m Around plus 1 Celsius
  • Glen Around minus 1 Celisus rising to plus 10 Celsius
  • Freezing level Around 900m

Visibility

Very good or excellent falling to several kilometres in showers and perhaps a kilometre or less in snow showers.

Sunday 29 April 2018

Sunrise: 05:32
Sunset: 20:52
Moon phase: Full

Another bright day with sunny spells and fewer showers than of late. Still the risk of snow above about 750m. Mainly light northerly or northeasterly winds.

Monday 30 April 2018

Sunrise: 05:29
Sunset: 20:54
Moon phase: Full

Dry and bright with sunny spells, the best of these in the west. Mainly light northerly winds. Freezing level around 900m.

Tuesday 1 May 2018

Sunrise: 05:27
Sunset: 20:56
Moon phase: Full

Fine, dry morning but cloud and rain, with Munro snow, spreading east through the afternoon and evening. Freshening southerly winds. Freezing level rising to 1100m.

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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