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Features & Analysis
How is fog formed?
You may have noticed some foggy mornings recently but what exactly is fog and how is it formed? Phil Avery explains.
So what is the Foehn effect?
BBC Weather's Alex Deakin explains what the Foehn effect is and how it produces unusually high temperatures.
Will it be a white Christmas?
What constitutes a white Christmas, and how likely are we to see one in the UK? Matt Taylor explains.