South Grampian and Southeast Highlands

This evening forecast

Dry through the evening with some bright spells to start, but high level cloud gradually spreading east and some patches of cloud forming at around 800-1000m - mainly for upslopes of ranges west of the A9 and but also western Angus hills. Strengthening southerly winds reaching mean speeds around 40-50mph and gusting 60-70mph over the summits.

Gales

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.

Strong Sunlight

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.

Storm Force Winds

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.

Severe Chill Effect

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.

Poor Visibility

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.

Mountain weather forecast

Rain, summit gales in morning. Showers afternoon, brighter evening. Chilly.

Time	Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
Weather (at 800m)	Weather symbols
Chance of precipitation (at 800m)	Chance of precipitation	30%	≥95%	≥95%	80%	50%	30%	30%	10%

Wind direction and speed

Altitude above mean sea level

Time	Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
1100m	1100m	SW 45mph knots SW 45mph	S 59mph knots S 59mph	S 56mph knots S 56mph	SW 46mph knots SW 46mph	W 39mph knots W 39mph	W 26mph knots W 26mph	W 20mph knots W 20mph	W 13mph knots W 13mph
900m	900m	SW 27mph knots SW 27mph	S 36mph knots S 36mph	S 35mph knots S 35mph	SW 30mph knots SW 30mph	W 28mph knots W 28mph	W 21mph knots W 21mph	W 14mph knots W 14mph	W 9mph knots W 9mph
600m	600m	SW 15mph knots SW 15mph	S 24mph knots S 24mph	S 23mph knots S 23mph	SW 18mph knots SW 18mph	W 19mph knots W 19mph	W 15mph knots W 15mph	W 9mph knots W 9mph	W 6mph knots W 6mph
300m	300m	S 4mph knots S 4mph	W 7mph knots W 7mph	W 8mph knots W 8mph	SW 8mph knots SW 8mph	W 12mph knots W 12mph	W 10mph knots W 10mph	NW 8mph knots NW 8mph	NW 4mph knots NW 4mph
Glen	Glen	SW 7mph knots SW 7mph	SW 10mph knots SW 10mph	SW 10mph knots SW 10mph	SW 10mph knots SW 10mph	W 13mph knots W 13mph	W 9mph knots W 9mph	W 6mph knots W 6mph	W 3mph knots W 3mph

Wind gust

Altitude above mean sea level

Time	Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
1100m	1100m	54mph	72mph	68mph	55mph	47mph	33mph	24mph	15mph
900m	900m	36mph	49mph	48mph	38mph	36mph	27mph	19mph	12mph
600m	600m	31mph	46mph	45mph	34mph	33mph	24mph	16mph	11mph
300m	300m	16mph	19mph	18mph	21mph	26mph	21mph	18mph	8mph
Glen	Glen	18mph	26mph	26mph	22mph	27mph	19mph	13mph	10mph

Altitude above mean sea level

Time	Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
1100m	1100m	5 degrees Celsius	5 degrees Celsius	7 degrees Celsius	8 degrees Celsius	9 degrees Celsius	9 degrees Celsius	7 degrees Celsius	5 degrees Celsius
900m	900m	7 degrees Celsius	7 degrees Celsius	8 degrees Celsius	10 degrees Celsius	11 degrees Celsius	11 degrees Celsius	9 degrees Celsius	7 degrees Celsius
600m	600m	9 degrees Celsius	9 degrees Celsius	10 degrees Celsius	13 degrees Celsius	14 degrees Celsius	14 degrees Celsius	12 degrees Celsius	9 degrees Celsius
300m	300m	11 degrees Celsius	11 degrees Celsius	12 degrees Celsius	15 degrees Celsius	18 degrees Celsius	17 degrees Celsius	14 degrees Celsius	11 degrees Celsius
Glen	Glen	12 degrees Celsius	12 degrees Celsius	12 degrees Celsius	15 degrees Celsius	19 degrees Celsius	19 degrees Celsius	15 degrees Celsius	11 degrees Celsius
Freezing Level	Freezing Level	2200m	3500m	3300m	2600m	2700m	2600m	2100m	1700m

Altitude above mean sea level

Time	Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
1100m	1100m	-3 degrees Celsius	-3 degrees Celsius	0 degrees Celsius	2 degrees Celsius	4 degrees Celsius	4 degrees Celsius	3 degrees Celsius	1 degrees Celsius
900m	900m	1 degrees Celsius	1 degrees Celsius	3 degrees Celsius	6 degrees Celsius	7 degrees Celsius	8 degrees Celsius	6 degrees Celsius	4 degrees Celsius
600m	600m	6 degrees Celsius	5 degrees Celsius	6 degrees Celsius	10 degrees Celsius	11 degrees Celsius	12 degrees Celsius	10 degrees Celsius	8 degrees Celsius
300m	300m	10 degrees Celsius	10 degrees Celsius	10 degrees Celsius	14 degrees Celsius	15 degrees Celsius	16 degrees Celsius	12 degrees Celsius	10 degrees Celsius
Glen	Glen	10 degrees Celsius	10 degrees Celsius	10 degrees Celsius	14 degrees Celsius	16 degrees Celsius	17 degrees Celsius	14 degrees Celsius	11 degrees Celsius
Freezing Level	Freezing Level	2200m	3500m	3300m	2600m	2700m	2600m	2100m	1700m

Additional weather information

Meteorologist's view

Walking will be extremely difficult on exposed ground in the morning with a high risk of being blown over in 60-70mph winds. Feeling cold at height and quite extensive low cloud in some places. Conditions much improved later in the day.

Weather

Rain spreads east in the early morning, heaviest and most persistent over ranges west of the A9, generally patchier over more sheltered Aberdeenshire and Angus Hills. This accompanied by widespread summit gales and some storm-force gusts over the highest summits. The worst of the rain clear by mid-morning, with some bright spells developing. Cloudier again in the west in the afternoon with some bright spells in the east. A few mainly light showers spread east through the rest of the afternoon, meanwhile winds will gradually ease. Becoming dry with largely clear summits in the evening.

Chance of cloud-free hill tops

30% or less in west in morning, 50% in afternoon. 75% in northeast. Rising to 80% or higher for all in evening.

Low cloud and visibility

Quite widespread cloud down to 700-900m in the west during the morning, and again in the afternoon, but clearer for a time around midday. Cloud falling to 500m for a time in the early morning with poor visibilities in rain. Generally clearer summits in the sheltered east. Cloud lifting and breaking for all through the late afternoon and evening to allow some good clear spells and visibilities.

Ground conditions

No recent ground conditions report available.

Mountain weather information

Weather

A much better day compared to Saturday. Dry throughout the day with lengthy bright or sunny spells in the morning, a bit more by way of cloud in the afternoon. Mostly light winds by day. Cloudier in the far west later in the evening with some outbreaks of rain and freshening southerly winds.

Chance of cloud-free hill tops

90% or higher until late evening.

Maximum wind speed expected

Generally west backing southwest 10-15mph. Increasing south to southwest 25-35mph late evening.

Temperature

At 800m Plus 4C rising to plus 8C by day.
Glen Plus 6C rising to plus 17C by day.
Freezing level 1400-1600m in north before dawn, otherwise well above summits.

Low cloud and visibility

Summits largely clear through the day with excellent visibilities. Any afternoon cloud largely above the summits but the odd patch possible around the very highest summits. The odd patch of valley fog or cloud below 300m in the early hours, soon burning away after dawn. Areas of cloud spread into the west shortly before midnight, down to 500-700m in places.

Ground conditions

No recent ground conditions report available.

Mountain weather information

Mon 14 Sep

Sunrise: 06:41

Sunset: 19:33

Cloud and rain spread east, occasionally heavy and persistent. Fresh to strong south to southwest winds. Freezing level well above summits.

Tue 15 Sep

Sunrise: 06:43

Sunset: 19:30

Scattered heavy showers in morning, particularly in west. Showers less heavy, less frequent in afternoon, evening. Strong west to northwest winds. Freezing level above summits.

Wed 16 Sep

Sunrise: 06:45

Sunset: 19:28

Bright spells and scattered showers, chance of more persistent rain. Strong west to southwest winds. Freezing level above summits.

Mountain weather

South Grampian and Southeast Highlands

Confidence

This evening forecast

Mountain weather hazards

Gales

Strong Sunlight

Storm Force Winds

Severe Chill Effect

Poor Visibility

Mountain weather forecast

Wind direction and speed

Wind gust

Additional weather information

Meteorologist's view

Weather

Chance of cloud-free hill tops

Low cloud and visibility

Ground conditions

Mountain weather information

Weather

Chance of cloud-free hill tops

Maximum wind speed expected

Temperature

Low cloud and visibility

Ground conditions

Mountain weather information

Mon 14 Sep

Tue 15 Sep

Wed 16 Sep

Summit specific forecast

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Mountain weather

South Grampian and Southeast Highlands

Confidence

This evening forecast

Mountain weather hazards

High likelihood: 1 weather hazards

Gales

Medium likelihood: 1 weather hazards

Strong Sunlight

Low likelihood: 3 weather hazards

Storm Force Winds

Severe Chill Effect

Poor Visibility

Mountain weather forecast

Wind

Wind direction and speed

Wind gust

Temperature

Feels Like Temperature

Additional weather information

Meteorologist's view

Weather

Chance of cloud-free hill tops

Low cloud and visibility

Ground conditions

Mountain weather information

Weather

Chance of cloud-free hill tops

Maximum wind speed expected

Temperature

Low cloud and visibility

Ground conditions

Mountain weather information

Mon 14 Sep

Tue 15 Sep

Wed 16 Sep

Summit specific forecast

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