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yellow Warnings have been issued for the United Kingdom

West Highlands

Weather hazards over 300m on Sat 28 Mar 2015

High risk

Storm force winds
Gusts to around 100mph over summits and ridges. Severe buffeting and risk of being blown over.
Gales
Gusts to around 100mph over summits and ridges. Severe buffeting and risk of being blown over.
Severe chill effect
Severe at most levels

Medium risk

Blizzards
Overnight and temporary in showers
Heavy snow
For a time overnight
Persistent extensive hill fog
Occasional or widespread above 600-900m

Low risk

Thunderstorms
Not expected
Heavy persistent rain
Occasional overnight

No risk

Strong sunlight
none

Sat 28 Mar 2015

Heavy rain, sleet and snow developing during the early hours, turning to rain at all levels for a time. Soon turning more showery during the morning, the showers falling as snow at most levels by the afternoon with temporary blizzard conditions at higher level. The showers will be heavy and frequent around the middle of the day, possible merging at times. The snow showers become more scattered across all ranges during the evening, but could become more frequent across Argyll and the Trossachs by midnight. Stormy from much of the time at higher level with severe buffeting and the risk of being blown over coupled with a severe wind chill.

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
Cloudy Sleet Sleet shower day Sleet shower day Heavy snow shower day Heavy snow shower day Light snow shower night Light snow shower night
Precipitation probability
40% 90% 70% 60% 50-70% 50-70% 50% 70%

Visibility

Moderate or poor at times overnight and in showers during daylight hours, temporary very poor with white-out conditions in snow showers. Otherwise good or very good.

Hill Fog

Mainly broken 600 to 900m, but patches to 300m in showers and more widespread overnight and at first on Saturday, particularly through the Southern Highlands.

Max wind above 600m

Increasing South 50 to 60 gusts 80 mph overnight, veering West 60 to 70 during the morning, gusts to around 100mph over ridges and summits. Wind easing in the evening.

Temperature

Valleys:
Plus 3 to 7 Celsius
800m:
Around Minus 1 Celsius
Freezing level:
Mainly around 500m, but above or close to the summits for time in the morning.

Issued at: 1730 on Fri 27 Mar 2015

Sun 29 Mar 2015

Snow showers with occasional clear or sunny spells, the showers possible merging into a longer period of snow during the early hours across the Southern Highlands. Temporary blizzard conditions at higher level in the showers.

Visibility

Very good or excellent, falling poor or very poor in snow showers.

Hill Fog

Cloud bases occasional 600 to 900m, but lowering to 300m in snow showers.

Max wind above 600m

West 20 to 30mph increasing 40 to 50, gust 70mph later in the day.

Temperature

Valleys:
Zero rising to plus 7 Celsius for a time
800m:
Around Minus 2 Celsius
Freezing level:
Around 600m, but lowering to most levels later in the day.

Issued at: 1730 on Fri 27 Mar 2015

Mon 30 Mar 2015

Snow showers mostly dying out overnight. Outbreak of rain, sleet and snow then developing across the southwest during the morning, pushing north in the afternoon before clearing back to snow showers in the evening. Freezing level well down early and later in the day, but could rise to around 1000m through Argyll and the Trossachs. Southeast veering Northwest winds, strong to gale force at times time over the summits.

Issued at: 1730 on Fri 27 Mar 2015

Tue 31 Mar 2015

Bright clear spells snow showers, the showers heavy and frequent at times with temporary blizzard conditions. Westerly gales or severe gales over the summits with a severe wind chill.

Issued at: 1730 on Fri 27 Mar 2015

Wed 01 Apr 2015

Bright clear spells snow showers, the showers heavy and frequent at times with temporary blizzard conditions. The showers becoming less frequent later in the day. Westerly gales or severe gales over the summits with a severe wind chill, winds easing later.

Issued at: 1730 on Fri 27 Mar 2015