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Postcode information:
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Friday, 18 May 2012: dawn to dusk
Printable view Forecast issued: 0352 on Friday, 18 May 2012
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% |
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.
Moderate or good, but poor in hill snow, becoming mainly good or very good or excellent in the north.
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.
Northeasterly 20 mph gusts 30mph, locally 25 mph gusts 40 mph in the south.
| Glens | Plus 4 Celsius rising to plus 9 Celsius. |
| 900 m | Minus 2 Celsius. |
| Freezing level | Around 500 metres rising to 700 metres. |
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.
Very good or excellent, with distant summits clearly visible.
A few patches above around 800 metres at first, but this lifting above the summits by the afternoon.
East or northeasterly 15 mph gusts 20 mph
| 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. |
Dry and bright with some sunshine. Light or moderate easterly winds over the summits, with the freezing level around 800 metres.
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.
Dry with some good sunny spells. Moderate easterly winds over the summits, freezing level lifting above all the summits.
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