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region. From this viewpoint at 35,000 km above the Equator the extent of the fog can clearly be seen. Using data from channels detecting radiation at visible and near infra-red wavelengths we can produce an image that is close to true colour, however ice clouds and snow on the ground appear

Areas of expertise Parametrization development. Boundary layer modelling. Clouds and turbulence. Large-eddy simulation. Publications by Adrian Lock Current activities Adrian manages the boundary layer and surface processes team, which is part of Atmospheric Processes and Parametrizations. The team

A noticeable increase in cloud cover across much of the UK compared to recent days

Saturday will bring a noticeable increase in cloud cover across much of the UK compared to recent days, though parts of the south and southwest will enjoy the best of the sunshine. Scattered showers are expected, particularly in western areas, with Northern Ireland likely to see more persistent

, variable cloud and clear spells will occur, with local grass frost and isolated fog patches forming. Friday will feel warm in sunshine and light winds for many, with temperatures widely ranging from 15-17°C, locally reaching 18°C, though cooler along North Sea coasts. On Friday night, frontal rain across

A fine and settled day is expected across much of England and Wales, with early patchy low cloud and isolated fog in southern and western areas soon clearing to leave widespread sunshine. Temperatures will respond accordingly, with much of the region turning warm or very warm through the afternoon

cloud amount Hourly 75 22. Medium cloud amount Hourly 74 23. Low cloud amount Hourly 73 24. Total cloud Hourly 71 25. Convective cloud amount Hourly 72 26. Convective cloud base (hPa) Hourly 153 27. Convective cloud top (hPa) Hourly 154 28. Cloud fraction (below 1000ft ASL) Hourly 207 29. Height lowest

with some light outbreaks of rain through early morning. From late morning rain becoming heavier and more persistent at times before drier spells develop again in the evening. Strong southerly winds reaching gale force over higher summits in the morning. Chance of cloud-free hill tops above 800m: Generally

-colour image highlights where snow is lying on the ground. They are created using five channels in the near-infra-red part of the spectrum so things look a little different to what the human eye would see. Snow can be easily differentiated from the white cloud as it now appears in a bright orange

of maritime and continental influences; the air is likely to be warm and predominantly dry, generating fair weather clouds but also some lower cloud bases in moister air to the west. The presence of an upper cold front to the east of England complicates the picture somewhat and will need investigating. What

through much of the day. Some drier spells possible in the east towards the Great Glen and in the north at first. Strong winds at times with gales possible on higher summits in the morning. Feeling cold. Chance of cloud-free hill tops above 800m: Little chance. Low cloud and visibility: Widespread