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yellow Warnings have been issued for the United Kingdom

West Highlands

Weather hazards over 300m on Mon 30 Nov 2015

High risk

Heavy snow
Heavy snow showers expected to give 15cm of snow, especially northern parts.
Storm force winds
Westerly winds, gusts around 70mph, will gradually ease through Monday.
Westerly gales, expected at all but the lowest levels, easing through Monday.
Severe chill effect
Sub-zero temperatures and storm force winds will produce a severe chill effect.

Medium risk

Heavy snow showers storm force winds may give temporary blizzard conditions.
Persistent extensive hill fog
Periods of hill fog expected above 450m in association with showers.
Risk in heavier showers

Low risk

No low risks

No risk

Heavy persistent rain
Strong sunlight

Mon 30 Nov 2015

Heavy snow showers with temporary blizzard conditions will occasional bright or sunny spells. A period of more persistent, but mainly light snow may affect the Trossachs for a time during the morning. The snow showers will gradually die out through the day with most places becoming dry and clear by evening.

0600 to 0900 0900 to 1200 1200 to 1500 1500 to 1800 1800 to 2100 2100 to 2400
Heavy snow shower night Heavy snow shower day Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night
Precipitation probability
70% 50% 40% 30% 10% 0%


Very good falling poor or very poor in snow showers and near zero in temporary blizzards and drifting snow.

Hill Fog

Occasional above about 750m becoming periods above 450m in or near snow showers and any more persistent snow in the south. Hill fog becoming increasingly isolated through the afternoon.

Max wind above 600m

Westerly winds 40-50mph, with gusts around 70mph over ridges and summits, decreasing 25-30mph across the far south by dawn but much more gradually further north.


Around Zero rising to plus 5 Celsius for a time during the day.
Around minus 5 Celsius with a severe chill effect
Freezing level:
Below 300m.

Tue 01 Dec 2015

Dry overnight with clear spells but cloud then increases from the south bringing outbreaks of snow to southern ranges by dawn. The snow, turning to rain quite quickly below about 750m and then gradually above that, spreads quickly northeast to cover all ranges by midday and continues through the afternoon. The rain will be heavy at times, especially across Argyll, Lochaber and Wester Ross, and will lead to a significant thaw of lying snow with some difficult conditions expected underfoot. During the evening the rain becomes generally lighter and patchier across the Trossachs and the hills of Caithness and northern Sutherland.


Very good becoming moderate or poor in rain and snow and perhaps very poor in any heavier snow

Hill Fog

Little hill fog expected overnight but periods or persistent hill fog developing above about 450m in rain and snow with periods above 300m or less developing on windward slopes and heavier precipitation.

Max wind above 600m

Westerly winds around 30mph, gusts 50mph, soon backing southeasterly 20mph then increasing 50mph before veering southwesterly 45-55mph with gusts perhaps reaching 80mph over ridges and summits by evening.


Around zero Celsius falling to minus 5 Celsius by dawn and then rising to plus 10 Celsius during the day.
Minus 5 Celsius with a significant wind chill rising to plus 5 Celsius during the evening.
Freezing level:
Below 300m rising to 900m through the morning and then becoming above the summits as winds turn more southwesterly.

Wed 02 Dec 2015

Rather cloudy morning with further outbreaks heavy rain of rain, especially across Argyll, Lochaber and Wester Ross. The rain turns increasingly to snow above about 600m before a return to showers, with snow above 450m, during the evening. Severe gale or storm force southwesterly winds veering westerly later and easing a little. Freezing level above the summits lowering to 600m later.

Thu 03 Dec 2015

Clear or sunny spells and snow showers, perhaps falling as rain below about 450m. Westerly or southwesterly gales. Freezing level around 600m falling 300m later.

Fri 04 Dec 2015

A mostly dry start but rain spreading east through the late morning and afternoon, preceded by snow above about 600m. Severe or storm force southwesterly winds. Freezing level gradually rising above the summits.

Issued at: 0250 on Mon 30 Nov 2015