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Tuesday will begin on a notably chilly note, particularly across northern and western regions. However, conditions will improve through the morning, with many areas enjoying a dry day accompanied by sunny spells. Some cloud may build during the afternoon, especially in central and eastern areas

Tuesday begins with areas of cloud and showery rain, some locally thundery, affecting central and southern regions. These outbreaks will gradually move north-eastwards, allowing increasing amounts of hot sunshine to develop across much of England and Wales by the afternoon. Scotland and Northern

The representation of solar and infra-red radiation, and its interaction with clouds in our numerical models.

Various radiative processes occur in the atmosphere: gases, aerosols, cloud droplets and ice crystals absorb radiation and emit thermal radiation. Aerosols, cloud particles and air molecules scatter radiation. The surface absorbs, reflects and emits radiation. The radiative properties

is cloud free and surface features such as coastlines, the snow-covered Alps and variations in the Northern Sahara desert surface are clearly visible. Geostationary satellites orbit at around 36,000 km above the Earth's surface and have an orbital period of one day, meaning they remain at a fixed

Charlie specializes in modelling the dispersion of volcanic eruption clouds using the Met Office's Numerical Atmospheric-dispersion Modelling Environment (NAME).

Areas of Expertise Volcanic cloud transport and dispersion   Current Activities Charlie is working in the Volcanic and Chemical Dispersion team of the Atmospheric Dispersion and Air Quality (ADAQ) group within Weather Science. Charlie is currently working on the development of resuspended volcanic

Areas of expertise Model Evaluation Seamless modelling approach Understanding cloud processes Process-orientated metrics of model performance Publications by Keith Williams Current activities Keith heads the Atmospheric Processes and Parametrizations group. The group is responsible

to the seasonal average. We've got a change in type this week with high pressure dominating ⛅ Here's the latest on the week ahead 👇 pic.twitter.com/LIKwKshdrT — Met Office (@metoffice) September 21, 2025 As we move into Wednesday night, clear spells will persist for many, with some residual cloud lingering

fraction 12. surface (skin) temperature Un-split File 2 [yyyymmddhhmm_u1096_ng_umqv_Wholesale2.grib] Full domain, all available time steps and the following surface level parameters: 1. low cloud amount 2. medium cloud amount 3. high cloud amount 4. convective cloud base height 5. convective cloud top

Tuesday will bring a continuation of changeable conditions across western parts of the UK, with cloud and outbreaks of rain or drizzle moving eastwards through the morning. The heaviest rainfall is expected over west-facing high ground, particularly across Wales, northern England, and southwest

not routinely measured but important for model process understanding. Areas of key interest Measure updrafts, turbulence and dynamical structures in convective clouds on fine scales. Understand effect of pre-convective environment on subsequent storm development. Interaction between boundary layer structures