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West Highlands

Weather hazards over 300m on Wed 24 Sep 2014

High risk

No high risks
none

Medium risk

No medium risks
none

Low risk

Gales
NorthWestern Munros, gusts mostly 45 but may reach 50mph over Cuillin Ridge and Torridon later.
Persistent extensive hill fog
Generally shortlived in early showers, but periods developing over Skye by dusk.
Strong sunlight
Possible in Trossachs and east.

No risk

Blizzards
none
Heavy snow
none
Storm force winds
none
Severe chill effect
none
Thunderstorms
none
Heavy persistent rain
none

Wed 24 Sep 2014

Rain and hill fog overnight will clear to scattered showers. After sunrise many southern and central ranges having a dry bright day with sunny spells. However scattered showers will last through the morning over the north and some western coastal ranges, these dying out by noon. Then through the evening over the northwest it will cloud over with rain reaching Skye around dusk.

Time
0000 to 0300 0300 to 0600 0600 to 0900 0900 to 1200 1200 to 1500 1500 to 1800 1800 to 2100 2100 to 2400
Weather
Light rain Light shower night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy
Precipitation probability
70-90% 50% 40% 10-30% 0% 0% 20% 40%

Visibility

Mostly very good with good clarity, brief reductions as showers move through northern ranges. During the late evening reducing moderate across Skye.

Hill Fog

At midnight extensive 200 to 500 metres, but this lifting and breaking overnight. After sunrise patches 750 metres, but occasional periods in the north with patches lowering 600 metres in showers. By mid afternoon occasional patches 750 to 900 metres. Over Skye and Torridon during evening periods 900 metres developing, banks lowering 450 metres over the Cuillin ridge around dusk.

Max wind above 600m

Northwest 30 to 35mph gusts 45mph, later becoming Westerly 25mph gusts 35mph. Over Skye and Torridon by dusk becoming Southwest 35 gust 45 to 50mph

Temperature

Valleys:
Plus 6 rising 14 Celsius.
800m:
plus 4, later rising 7 Celsius across the northwest.
Freezing level:
above summits.

Issued at: 1724 on Tue 23 Sep 2014

Thu 25 Sep 2014

Mostly cloudy and tending to be misty with abundant hill fog, especially on coastal ranges. Some drizzly rain, most persistent across Torridon, Skye, Lochaber, Nevis Range and down through western Argyll. The eastern Trossachs having some drier spells.

Visibility

Mostly moderate, and often very poor in western coastal ranges. Some navigational hazards above around 450 metres within hill fog and rain in west.

Hill Fog

Extensive cover around 450 metres, some patches 200 metres on southwest facing coastal slopes. In sheltered inland areas on eastern facing slopes occasionally lifting 600 metres through day.

Max wind above 600m

West to Southwesterly 30 or 35 gust 50mph later increasing 45 or 50 gust 60 to 70mph, strongest in northwest by dusk..

Temperature

Valleys:
12 rising 16 Celsius.
800m:
12 Celsius
Freezing level:
above summits.

Issued at: 1724 on Tue 23 Sep 2014

Fri 26 Sep 2014

By dawn rain and hill fog should have cleared away to the south and much drier brighter weather spreading quickly from the northwest to leave a reasonable day with just a few showers later. West to South-westerly severe gales at first, easing strong to gale force, always strongest across the northwest..

Issued at: 1724 on Tue 23 Sep 2014

Sat 27 Sep 2014

Bright with a few sunny spells, especially well inland and across the north, but some patchy hill fog and drizzle possible over western facing slopes later, especially the Argyll hills. Strong to gale force Southwest winds, gales most prevalent in coastal west and northwest.

Issued at: 1724 on Tue 23 Sep 2014

Sun 28 Sep 2014

Strong West or Southwest winds will gradually ease. A changeable weather pattern with some hill fog and thicker cloud near western coasts liable to give odd bursts of drizzly rain, whilst further east often drier and brighter.

Issued at: 1724 on Tue 23 Sep 2014