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Thursday, 5 December 2013: dawn to dusk
Printable view Forecast issued: 1643 on Thursday, 5 December 2013
A wintry day on the hill. Scattered showers, with snow likely above 200m at first, bringing accumulations in places. Frozen surfaces likely, milder air moves in later, with snow showers turning to rain, but otherwise dry.
|Blizzards||Low||Low risk of zero visibility in snow and early high winds.|
|Heavy snow||Low||Snow showers expected, but unlikely to be heavy.|
|Storm force winds||No Risk|
|Gales||Low||Northwesterly winds could gust to 50mph at first, over highest points. Decreasing by midday.|
|Severe chill effect||Medium||Risk of chill effects, due to strong and cold winds, and snow cover.|
|Persistent and extensive hill fog||High||Ragged hill fog, becoming increasingly persistent during the day at 300m|
|Heavy persistent rain||Low||Low risk of persistent rain in the evening.|
|Strong Sunlight||No Risk|
|Dawn to 0900||0900 to 1200||1200 to 1500||1500 to dusk|
Scattered snow showers will continue overnight, whilst clearer spells will lead to surfaces freezing. This is likely to bring icy conditions underfoot. Strong winds will also ease, as clouds thicken. The scattered snow showers gradually turning increasingly to rain through afternoon and evening. It then becomes increasingly mild overnight, with any lying snow thawing. However winds remain light.
Generally excellent, although poor to very poor in snow showers and any hill fog. Becoming moderate with light rain later during the afternoon and evening.
Ragged patches at 800m, lowering to 400m in snow showers. Becoming increasingly persistent from the west at 600m during the afternoon. Best chance of cloud free summits, south and eastern hills.
Northwesterly 50mph becoming westerly 35mph
|Valleys||Minus 2 Celsius becoming Plus 4 Celsius|
|900 m||Minus 5 Celsius becoming Plus 8 Celsius|
|Freezing level||500m, gradually increasing to be above the summits by midnight.|
A mainly cloudy, but milder, day across the park with the freezing level above the summits. Cloud is likely to shroud the hills at times during the day, leading to extensive hill fog. The cloud may well be thick enough for some drizzle in the west, perhaps some slight snowfall over highest hills although nothing settling. The best of the brightness will be in the east.
Generally moderate, but poor to very poor in hill fog and drizzle.
Extensive in the west, at 400m. But broken in the east at 600m.
|Valleys||Plus 3 Celsius becoming Plus 9 .|
|900 m||Plus 2 Celsius.|
|Freezing level||Above the summits.|
Rather cloudy throughout the day with some patchy light rain or drizzle possible at times. Fresh to strong west to southwesterly winds. Freezing levels above the summits.
Another cloudy day is expected, with further outbreaks of drizzle. However, winds are expected to slowly increase during the day, with upland gales becoming a risk by the evening. Freezing levels above the summits.
Another cloudy and windy day, especially in the west, although perhaps a little more in the way of sunny spells across the northern slopes of the Park. Staying rather mild with freezing levels above the summits.
No ground conditions reported.
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