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West Highlands

Weather hazards over 300m on Wed 01 Oct 2014

High risk

No high risks
none

Medium risk

Gales
Mainly developing across the NW Highlands during the afternoon.
Severe chill effect
Feeling much colder than of late with Munro tops just above freezing.

Low risk

Strong sunlight
Long spells of sunshine developing.

No risk

Blizzards
none
Heavy snow
none
Storm force winds
none
Persistent extensive hill fog
none
Thunderstorms
none
Heavy persistent rain
none

Wed 01 Oct 2014

Outbreaks of rain in the early hours, clearing from the NW Highlands by dawn. Wednesday will start cloudy across Argyll and hills near the Great Glen with some patchy rain. However, dry and bright conditions across the NW Highlands with spells of sunshine will soon spread to all parts during the morning. The afternoon will then see a mixture of sunny spells and scattered showers, these mainly affecting the Northwest Highlands and falling as sleet on the Munro tops. Feeling colder than of late with strong or gale force winds developing. Showers will become isolated during the evening and becoming cold in the glens with clear spells developing.

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 rain Sunny intervals Sunny day Sunny intervals Light shower day Partly cloudy night Partly cloudy night
Precipitation probability
70-90% 50-70% 10-30% 10% 10-30% 30-50% 10-30% 10-30%

Visibility

Moderate, occasionally poor in the rain, in the early hours. Once the rain has cleared, visibilities will be very good with distant ranges clearly visible. Temporary reductions to moderate or poor can be expected as showers pass over.

Hill Fog

Periods of hill fog above 600M at first, with patches at 400M over Argyll and Trossachs, but most hills will become cloud free during the morning. Showers in the afternoon will bring some patches down to 700M, mainly NW Highlands.

Max wind above 600m

West or southwest 30mph with gusts 40mph but strengthening to 40mph gusts 60mph across NW Highlands in afternoon.

Temperature

Valleys:
Plus 7 rising to 14 Celsius, falling to 5 Celsius after dark.
800m:
Plus 7 in the early hours falling to Plus 3 Celsius in the morning.
Freezing level:
Just above the highest summits.

Issued at: 1726 on Tue 30 Sep 2014

Thu 02 Oct 2014

The early hours will be cold in the glens with clear spells and the odd shower around the coasts. Thursday will remain dry for much of the day with just the odd shower affecting the NW Highlands. Cloud will thicken from the west during the afternoon with rain reaching the Hebrides then spreading to all parts during the evening, becoming heavy and persistent. Strong or gale force southerly winds will increase to storm force in the evening.

Visibility

Mainly good visibility through the day but deteriorating to moderate or poor as rain arrives from the west later.

Hill Fog

Occasional patches above 900M becoming persistent late in the afternoon and through the evening as the rain arrives with occasional fog down to 600M near the west coast.

Max wind above 600m

Southwest becoming south 30mph gusts 40mph increasing mean 40mph gusts 60mph, but increasing to mean 60mph gusts 90mph NW Highlands in evening.

Temperature

Valleys:
Plus 3 in the early hours rising to 14 Celsius, dipping to 10 Celsius after dark.
800m:
Plus 4 Celsius.
Freezing level:
Just above the highest summits.

Issued at: 1726 on Tue 30 Sep 2014

Fri 03 Oct 2014

Outbreaks of heavy rain will clear away southwards, but may linger across southern Argyll into the afternoon. Most ranges becoming bright with sunny spells and scattered showers, some heavy with hail and thunder in the north, wintry over the highest summits. Severe southwesterly gales, locally storm force over the highest summits at first, moderating by the afternoon.

Issued at: 1726 on Tue 30 Sep 2014

Sat 04 Oct 2014

A bright day with sunny spells and showers, some heavy with hail and a risk of thunder, and falling as snow on the highest Munros. Southwesterly gales over the summits with a significant wind chill.

Issued at: 1726 on Tue 30 Sep 2014

Sun 05 Oct 2014

Further sunny spells and showers are expected, again with snow on the Munro tops, with a risk of hail and thunder. Southwesterly gales.

Issued at: 1726 on Tue 30 Sep 2014