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Wednesday, 20 August 2014: dawn to dusk
Printable view Forecast issued: 0201 on Wednesday, 20 August 2014
A northerly airflow will bring sunny spells and some isolated showers, these most frequent in the north. Rain and summit sleet moving in across the western ranges in the afternoon.
|Heavy snow||No Risk|
|Storm force winds||No Risk|
|Severe chill effect||No Risk|
|Persistent and extensive hill fog||No Risk|
|Heavy persistent rain||No Risk|
|Strong Sunlight||Medium||A risk of being sunburnt, especially in longer sunny spells in south.|
|Dawn to 0900||0900 to 1200||1200 to 1500||1500 to dusk|
Light rain showers
The early hours will become quite cold with temperatures dipping close to freezing in some sheltered glens with further showers continuing to affect the north of the area. During daylight hours there will be a mixture of sunny spells and showers, mainly over the Northern Cairngorms, and falling as sleet on the highest tops but becoming more scattered during the morning. The best conditions will be over the southern ranges of Breadalbane and the braes of Angus. Still a cool day on the tops but with lighter wind then there wont be as much of a wind chill. However, during the afternoon and evening cloud will thicken from the west to bring outbreaks of rain later in the day to Creag Meagaidh and the Monadhliaths with some sleet once it reaches the highest Munro tops.
Generally very good with distant hills visible but temporarily moderate in showers and more generally across the Monadhliaths later when rain arrives. The clarity will be excellent with even the most distant tops standing out in sharp profile.
Occasional patches of fog above 800 metres, mainly over the Cairngorms at first, but most hills becoming fog-free during the morning and staying that way through the afternoon but with occasional hill fog around 700 metres over Creag Meagaidh and the Monadhliaths in the evening.
Northwest 35mph with gusts 45mph becoming Westerly 20mph gusts 30mph.
|Glens||Plus 3 rising to 15 Celsius.|
|900 m||Plus 3 Celsius.|
|Freezing level||Just above the highest summits.|
Cloudy overnight with rain or over the highest summits sleet with extensive hill fog. A cloudy start to the walking day with outbreaks of rain. This rain will soon clear away east leaving a mixture of sunny spells and a scattering of showers, these heavy with the risk of thunder and hail. These showers will be slow moving in the light wind regime so if you are unlucky to be caught below one then it will be very wetting.
Generally moderate to poor in the rain at first but becoming very good to excellent when the rain clears with distant hills visible but temporarily moderate in showers and poor in the heaviest showers.
Overcast at around 600 metres at first with patches down to 450 metres but occasional patches around 800 metres but lowering to 600 metres and becoming extensive in the showers.
Westerly 20mph gusts 30mph overnight easing to 5 to 10mph by Thursday morning and staying that way throughout the day.
|Glens||Plus 3 rising to 15 Celsius.|
|900 m||Plus 4 Celsius.|
|Freezing level||Above the summits.|
A northerly airflow will bring sunny spells and showers, a few of these heavy during the afternoon and evening and falling as snow on the higher tops. Feeling chilly with fresh northerly winds.
Some showers for a time but these are likely to die away as a ridge builds from the west with increasingly long sunny spells developing. Winds easing but still feeling cool for the time of year.
A fine dry day with some long sunny spells after a cold start to the day in the glens. High cloud spilling in from the west during the afternoon.
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