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West Highlands

Weather hazards over 300m on Sun 01 Mar 2015

High risk

Blizzards
Frequent snow showers and gale force winds will give blizzard conditions at times.
Heavy snow
Frequent snow showers, especially over Lochaber and the northwest highlands.
Gales
Widespread gales over exposed higher slopes and summits.
Severe chill effect
Frequent snow showers, gales and sub zero temperatures will give a severe wind chill.

Medium risk

Thunderstorms
Associated with heavy showers, mainly across western ranges.

Low risk

Storm force winds
Isolated gusts 70 mph over the highest and most exposed summits and ridges.
Persistent extensive hill fog
Hill fog will form in the frequent showers above around 400 metres.

No risk

Heavy persistent rain
none
Strong sunlight
none

Sun 01 Mar 2015

Frequent blustery and wintry showers moving in from the west, with hail and a risk of thunder. These merging to give longer spells of sleet and snow at times, particularly across Lochaber during the afternoon. Showers turning to snow at all levels by dusk. Some brighter spells between the showers, the best of these across eastern ranges. Further snow showers during the evening, with some brief clear intervals. Gale force winds near showers and a severe chill effect.

Time
0600 to 0900 0900 to 1200 1200 to 1500 1500 to 1800 1800 to 2100 2100 to 2400
Weather
Heavy snow shower night Heavy snow shower day Heavy snow shower day Heavy snow shower day Heavy snow shower day Partly cloudy night
Precipitation probability
60% 70% 70% 70% 70% 50%

Visibility

Good, but reducing poor or very poor in the snow showers.

Hill Fog

Patches or occasional patches above 600 metres, but occasional above 350 metres at times in the showers.

Max wind above 600m

Westerly 40 gusts 60 mph, with isolated gusts 70 mph over the highest summits.

Temperature

Valleys:
Plus 2 Celsius rising to plus 5 Celsius
800m:
Minus 3 Celsius.
Freezing level:
400 metres through the day, then lowering to 200 metres by dusk.

Issued at: 0545 on Sun 01 Mar 2015

Mon 02 Mar 2015

Occasional snow showers continuing during the early hours with just a few brief clears spells. Some bright or sunny intervals through the day, but also occasional snow showers, some heavy with hail and a risk of thunder, giving heavy falls of fresh snow in places, and blizzard conditions at times

Visibility

Very good, perhaps excellent in the east, but reducing poor or very poor in the showers.

Hill Fog

Occasional or occasional patches forming around 400 metres in the snow showers.

Max wind above 600m

Westerly 40 mph gusts 65 mph.

Temperature

Valleys:
Minus 2 Celsius rising to 4 Celsius
800m:
Minus 6 Celsius, with a severe wind chill.
Freezing level:
200 metres or less

Issued at: 0545 on Sun 01 Mar 2015

Tue 03 Mar 2015

Bright with sunny intervals and occasional snow showers, most frequent across western ranges, accompanied by gale or severe gale force westerly winds over the summits.

Issued at: 0545 on Sun 01 Mar 2015

Wed 04 Mar 2015

A chilly start with a widespread frost. Isolated snow showers in the north at first, these becoming lighter and less frequent to leave a mainly dry and bright afternoon with sunny spells. Northwesterly summit gales slowly easing.

Issued at: 0545 on Sun 01 Mar 2015

Thu 05 Mar 2015

A cold but dry and often bright start, particularly in the south. Clouding over during the morning and afternoon with outbreaks of rain and hill snow spreading down fro the northwest, as freezing levels rise to around 1000 metres. This being replaced by colder, clearer but showery condition during the afternoon and evening. Southwesterly winds increasing to gale or severe gale force over the summits.

Issued at: 0545 on Sun 01 Mar 2015