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Wednesday, 9 December 2009: dawn to dusk
Forecast issued: 0328 on Wednesday, 9 December 2009
A showery southwesterly will affect the Lake District National Park.
|Heavy snow||No Risk|
|Storm force winds||No Risk|
|Gales||High||Winds 40mph with gusts 50mph over exposed ridges and summits.|
|Severe chill effect||High||With gales and temperatures around freezing then there will be a significant wind chill.|
|Persistent and extensive hill fog||No Risk|
|Heavy persistent rain||No Risk|
|Dawn to 0900||0900 to 1200||1200 to 1500||1500 to dusk|
Heavy rain showers
Sunny intervals and scattered showers these especially over the western fells where they will be heavy at times especially in the afternoon and rather sleety over summits.
Generally good or very good with hills in the middle and far distance easily seen. Visibility becoming moderate in the showers.
Occasional at 800m with patches to 700m locally 500m in showers.
Southwesterly 30 to 40mph but with gusts 50mph over exposed ridges and summits.
|Valleys||Plus 8 Celsius.|
|900 m||Plus 2 Celsius|
|Freezing level||Just above highest tops.|
Some fog patches in the valleys at first these slow to dissolve away but will then leave a fine dry day with sunny spells.
Generally good to very good with hills at all distances easily seen. Down in the valleys however visibilities will be poor in the fog at first and only becoming moderate to good once the fog clears.
Nil generally however any fog in the valleys will be from the surface up to the tops at around 400 metres with the summits of the hills poking through this layer into the clear skies above.
Southwesterly 15 to 20mph with gusts 30mph.
|Valleys||Plus 2 Celsius rising to 6 Celsius.|
|900 m||0 Celsius|
|Freezing level||900 metres|
Any early morning valley fog slow to clear however the tops will be above the fog layer in the clear dry and sunny conditions above. Light winds with the freezing level around 650 metres.
A fine dry day with sunny spells and well broken cloud this well above the summits.
Any early morning valley fog slow to clear and may linger in some valleys throughout the day however the tops will be above the fog layer in the clear dry and sunny conditions above. Light winds with the freezing level around 600 metres.
FELL TOP CONDITIONS REPORT: From Helvellyn at 1215 on Tuesday 8th December 2009Most of the Lakeland fells are now free of snow and ice. Many of the paths on Helvellyn are clear of snow, however above 650m there are small areas remaining. Striding and Swirral Edges are covered with some patches of snow and ice. The steep exit to Swirral Edge is covered with compacted snow which will require an ice axe to pass. Full winter clothing, footwear and equipment are essential for anyone venturing out onto the fells. For those going above the snow line and attempting steep routes or traversing steep ground an ice axe is recommended. Currently no winter climbs are in condition and environmental damage could be done to sensitive upland flora if they are attempted. Summit statistics today at 1215. Temperature : Plus 1.5C. Wind chill : minus 7.6C Max wind speed 36.9 mph Average wind speed 11.2 mph
Orkney & Shetland
Highlands & Eilean Siar
Central, Tayside & Fife
SW Scotland, Lothian Borders
North West England
North East England
Yorkshire & Humber
East of England
South West England
London & South East England
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