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Northwest Highlands

Confidence

High confidence for the general trend, but lower for detail of rainfall through Tuesday, particularly how far north this spreads. Southern areas most at risk.

  • This evening
  • Tuesday
  • Wednesday
  • Further outlook

Monday 18 June 2018

Sunrise: 04:22   Sunset: 22:24
Moon phase: Waxing crescent

A very windy end to the day with gales across most areas, and severe gales above munro level. Scattered showers will move quickly across the area with some clearer spells in between.

Tuesday 19 June 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.

Severe chill effect Low 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.

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.

Headline

Sunshine and scattered showers in the morning, cloudier with some rain across the south by late afternoon. Widespread upland gales, perhaps severe on summits through the morning.

Weather at 800m

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Sleet shower night Sleet shower night Light shower day Light shower day Sunny intervals Cloudy Heavy rain Heavy rain
60% 60% 60% 40% 20% 00% 40% 60%
Chance of precipitation
1,200 1,200 1,300 1,200 1,300 1,300 1,300 1,400
Freezing level (m)
The level above which snow is expected to settle or the ground is expected to be frozen

Wind speed and direction (mph) By altitude above mean sea level

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
1000m SW 44 55 W 44 54 W 40 51 W 34 45 W 30 41 SW 24 33 SW 17 24 S 9 12
900m SW 42 53 W 42 52 W 39 49 W 33 44 W 30 40 SW 24 33 SW 17 24 S 9 11
600m SW 30 40 W 29 39 W 28 38 W 25 35 W 24 34 SW 20 29 SW 14 20 S 7 10
300m SW 11 37 W 11 37 W 11 34 W 12 34 W 12 33 W 11 27 SW 7 19 S 4 8
Glen SW 15 32 W 14 30 W 13 28 W 14 28 W 15 28 SW 13 24 SW 8 16 S 3 7

Temperature (°C) By altitude above mean sea level

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
1000m 2 2 2 3 3 4 3 2
900m 3 2 3 3 4 5 4 3
600m 5 5 5 6 7 7 7 5
300m 8 8 8 9 11 11 10 8
Glen 10 10 11 12 13 13 12 10

Feels like temperature (°C) By altitude above mean sea level

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
1000m -7 -7 -7 -5 -4 -3 -2 -2
900m -6 -6 -5 -4 -2 -1 -1 -1
600m -1 -1 -1 1 2 3 3 3
300m 5 5 5 7 8 9 8 7
Glen 7 7 8 10 10 11 10 10
Sunrise: 04:22   Sunset: 22:25
Moon phase: Waxing crescent

Weather

Scattered showers will continue through the early hours, turning sleety above around 1000m, the majority of which will be confined to areas north of Torridon. Showers will start to die away through the morning, leaving most areas dry by midday with some sunshine. Cloud will thicken from the southwest through the afternoon, bringing outbreaks of rain across southern parts, mainly Skye and Glen Shiel by evening.

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

60% through the bulk of the day, with most slopes largely fog free away from showers. However, some capping cloud is likely above 700m across exposed western slopes, particularly the northwest. Decreasing to 20% in the south by evening as cloud lowers widely to 500m within rain.

Visibility

Mainly very good with some far reaching views on offer, falling only temporarily in and around showers through the morning. Deteriorating to moderate through the later afternoon across the south, and locally poor in rain with some neighbouring slopes obscured.

Met Office Aberdeen meteorologist's view

Gusts may be closer to 60mph above 900m through the morning.

Wednesday 20 June 2018

Sunrise: 04:22   Sunset: 22:25
Moon phase: First quarter

Weather

Thick cloud will remain in place across the area, bringing patchy rain and drizzle, mainly for the south through the morning. Clearer conditions will arrive from the west by late morning, bringing a return to scattered showers and some sunshine. Into the evening, showers will become more widespread and heavy with a risk of thunderstorms, mainly for Assynt and northwards.

Maximum wind speed expected

Light through the morning, with a westerly breeze of 20-25mph with gusts to 40mph developing through the later afternoon.

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

20% with hill fog quite widespread above 500m, this slowly clearing from the west by mid morning. Generally 60% through the rest of the day with some fog associated with showers.

Temperature

  • At 800m Around plus 5C.
  • Glen Plus 4C rising to 15.
  • Freezing level 1200m but well above summits in the south through the morning.

Visibility

Moderate or poor at first, but improving to very good by around midday and falling temporarily during showers, perhaps to poor in any heavy showers.

Thursday 21 June 2018

Sunrise: 04:22   Sunset: 22:25
Moon phase: First quarter

A showery west or northwesterly airflow at first, but increasing influence from high pressure to the west of Scotland will bring mainly dry conditions for all by afternoon. Variable cloud but some sunshine likely. Strong winds, with a risk of gales on summits.

Friday 22 June 2018

Sunrise: 04:22   Sunset: 22:25
Moon phase: First quarter

An increasingly cloudy day with some patchy rain or showers at times, but unlikely to be persistent in any one location. Main hazard expected to be hill fog in the west. Moderate to strong westerly winds.

Saturday 23 June 2018

Sunrise: 04:22   Sunset: 22:25
Moon phase: First quarter

Mainly cloudy with some light rain for most western areas, but some shelter for the east. Winds increasing a little with a risk of summit gales returning.

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