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Northwest Highlands

Confidence

High for mainly settled conditions through Thursday and Friday but considerably lower for developments on Saturday.

  • This evening
  • Thursday
  • Friday
  • Further outlook

Wednesday 12 December 2018

Sunrise: 08:55   Sunset: 15:36
Moon phase: Waxing crescent

Dry with clear spells.

Thursday 13 December 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 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.

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.

Headline

Mainly dry with clear or sunny spells. Gales or severe southeasterly gales on summits

Weather at 800m

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
<05% <05% <05% <05% <05% <05% <05% <05%
Chance of precipitation
600 300 200 300 300 300 200 200
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 SE 39 48 SE 39 49 SE 42 53 SE 39 50 SE 39 50 SE 38 48 SE 34 43 S 35 44
900m SE 36 46 SE 36 47 SE 40 51 SE 36 47 SE 36 47 SE 36 46 SE 31 40 S 32 42
600m SE 28 37 SE 30 40 SE 33 45 SE 30 41 SE 30 41 SE 28 38 SE 24 33 S 26 35
300m SE 9 31 SE 9 30 SE 9 31 SE 9 30 SE 9 30 SE 9 29 SE 8 21 S 8 21
Glen SE 13 35 SE 10 32 E 12 33 SE 10 30 SE 9 29 SE 12 32 SE 8 26 SE 7 24

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 -3 -4 -5 -5 -4 -4 -5 -5
900m -2 -3 -4 -4 -4 -4 -4 -4
600m 1 -1 -1 -1 -1 -1 -2 -2
300m 3 2 1 1 2 1 1 1
Glen 6 5 4 4 4 4 4 4

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 -12 -14 -16 -15 -15 -14 -14 -15
900m -11 -13 -14 -14 -13 -13 -13 -13
600m -6 -9 -10 -9 -9 -9 -9 -9
300m 0 -2 -3 -3 -2 -2 -3 -3
Glen 3 1 0 0 1 0 1 1
Sunrise: 08:56   Sunset: 15:36
Moon phase: Waxing crescent

Weather

A dry night with some long clear spells. Then a bright day with some good spells of sunshine, although the sunshine hazy at times in the west. Similar through the evening.

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

Around 80% across southern hills with small amounts of cloud around 600m through the early hours and at first, otherwise close to 100% with little cloud expected below the summits.

Visibility

Good or very good.

Met Office Aberdeen meteorologist's view

Gusts close to 65mph over ridges and summits

Friday 14 December 2018

Sunrise: 08:57   Sunset: 15:36
Moon phase: First quarter

Weather

Many ranges dry with clear or sunny spells.

Maximum wind speed expected

Southeasterly 30-35mph gusting 50mph, producing a risk of severe chill effect.

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

Around 60% across southern hills with occasional cloud developing around 600m through the early hours and at first, otherwise close to 100% with little cloud expected below the summits.

Temperature

  • At 800m Around minus 4 Celsius
  • Glen Around minus 3 Celsius at dawn rising to plus 3 Celsius by day.
  • Freezing level 300m or less

Visibility

Good or very good.

Saturday 15 December 2018

Sunrise: 08:58   Sunset: 15:36
Moon phase: First quarter

After a bright start, potentially very wintry, especially across the south, with a risk of heavy snow, storm force winds and blizzards although details still uncertain at this stage. Freezing level 300m or less but expected to rise later.

Sunday 16 December 2018

Sunrise: 08:59   Sunset: 15:36
Moon phase: First quarter

A bright day with sunny spells and frequent showers these falling increasingly as snow above about 750m. Strong southwesterly winds easing later. Freezing level around 900m.

Monday 17 December 2018

Sunrise: 09:00   Sunset: 15:36
Moon phase: First quarter

Mainly dry with sunny spells, but cloud and rain, preceded by snow, spreading northeast in the evening. Strengthening southeasterly winds. Freezing level around 900m, rising later.

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