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West Highland: latest pressure
Friday, 18 May 2012: dawn to dusk
Printable view Forecast issued: 0352 on Friday, 18 May 2012
Overview for Friday
A mainly cloudy day with occasional mainly light rain and hill snow, although drier and brighter in the north. Fresh or strong northeasterly winds over the summits.
| Hazards | Risk | Explanation |
|---|---|---|
| Blizzards | No Risk | |
| Heavy snow | No Risk | |
| Storm force winds | No Risk | |
| Gales | No Risk | |
| Severe chill effect | Low | Risk over the summits in the south, where strong winds will combine with sub zero temperatures. |
| Persistent and extensive hill fog | No Risk | |
| Thunderstorms | No Risk | |
| Heavy persistent rain | No Risk | |
| Strong Sunlight | No Risk |
key to hazards and forecast content
| Dawn to 0900 | 0900 to 1200 | 1200 to 1500 | 1500 to dusk |
 Light snow |
 Sleet |
 Sleet showers |
Sleet showers |
| 70-90% | 70-90% | 50-70% | 30-50% |
Detailed mountain weather forecast: West Highlands
Friday
Weather
Most ranges will have a cloudy day with occasional mainly light rain, which will fall as snow above around 400 metres at first, rising to 600 metres during the day. It will become drier and brighter over Caithness and Sutherland, and these conditions will edge further south later in the afternoon, reaching Skye and Lochaber in the evening.
Visibility
Moderate or good, but poor in hill snow, becoming mainly good or very good or excellent in the north.
Hill fog
Occasional or persistent above around 600 metres with some patches down to 300 metres, mainly over the Trossachs and perhaps Ben Wives at first, lifting and breaking to become occasional or occasional patches above 800 metres in the north.
Maximum winds above 600m
Northeasterly 20 mph gusts 30mph, locally 25 mph gusts 40 mph in the south.
Temperature
| Glens | Plus 4 Celsius rising to plus 9 Celsius. |
| 900 m | Minus 2 Celsius. |
| Freezing level | Around 500 metres rising to 700 metres. |
Saturday
Weather
A dry but rather cloudy start to the day, but this gradually breaking up to give some sunshine, with the best of this over northern Argyll Lochaber and the Northwest highlands.
Visibility
Very good or excellent, with distant summits clearly visible.
Hill fog
A few patches above around 800 metres at first, but this lifting above the summits by the afternoon.
Maximum winds above 600m
East or northeasterly 15 mph gusts 20 mph
Temperature
| Glens | Plus 1 Celsius rising to plus 12 Celsius |
| 900 m | Minus 2 Celsius |
| Freezing level | 500 metres in the north, 800 metres in the south. |
Outlook
Sunday
Dry and bright with some sunshine. Light or moderate easterly winds over the summits, with the freezing level around 800 metres.
Monday
Another bright day with sunny spells, although more cloudy near the east coast with perhaps the odd shower later. Moderate easterly winds over the summits, freezing level lifting above all the summits.
Tuesday
Dry with some good sunny spells. Moderate easterly winds over the summits, freezing level lifting above all the summits.
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