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Its primary uses are for the modelling of clouds and atmospheric flows. The results of these simulations help us to develop the physics parametrizations in the Unified Model. LEM use and collaboration A number of process studies have been carried out using the LEM, including those within the GASS

, the showers becoming lighter and less frequent towards dawn. Any remaining showers soon clear southwards to leave the rest of the morning dry with long sunny spells developing. Continuing dry with long sunny spells through the afternoon but cloud above the summits increasing towards dusk. Cloud

in afternoon. Thickening cloud and band of rain will move eastwards during evening, preceded by snow above about 500m. Chance of cloud-free hill tops above 800m: 70% decreasing 20% during evening. Low cloud and visibility: Mostly very good visibility with occasional cloud cover above about 700 to 800m

later in afternoon. Dry evening following with clear periods. Chance of cloud-free hill tops above 700m: 70% early and late in the day, chances decreasing to 30% for a time. Low cloud and visibility: Mostly good visibility at first and again in the evening with patches of cloud around 700m. Visibility

Today, the Northern Isles and far north of mainland Scotland will see persistent cloud and outbreaks of rain, heavy at times, gradually easing later in the day. Elsewhere across northern Britain, expect variable cloud cover with scattered showers, particularly frequent and heavy in northwestern

across parts of northwest Scotland and possibly the north of Northern Ireland, where it will remain breezy. Elsewhere, light winds and variable cloud cover may bring the odd light shower, but these will be isolated. 🌡️ Heat is building across the UK this week, temperatures could reach 32-33°C

Mid-May brings mostly dry, settled UK weather, but slight changes in temperature and cloud cover will influence how each day feels across the country.

As we move through the middle of May, the UK continues to experience largely dry and settled weather, though subtle shifts in temperature and cloud cover will shape the feel of the days ahead.  Wednesday will bring a mix of sunshine and isolated showers, with most areas staying dry. The only

% of average. 1st to 7th Central and northern parts saw mist, fog and frost on the 1st, the fog slow to clear in some spots, especially in the east, but southern and north-western counties became sunny. The north-west began the 2nd clear and frosty, but low cloud, mist and fog affected most other places

, with some sunny spells breaking through, most reliably to the west of hills in the south. Temperatures on Friday are expected to be slightly higher in western and south-western areas if cloud cover clears, with some downslope winds providing a boost. Isolated spots could reach 16 to 17°C. Overnight

Jonathan works on cloud microphysics modelling, with the specific interest of lightning parametrization and the forecasting of lightning activity.

Areas of expertise Cloud Microphysics Lightning and atmospheric electricity Ground-based and spaceborne radar and lidar Cloud-aerosol interactions Numerical modelling and parametrization development Publications by Jonathan Current activities Jonathan is a senior scientist working in the fields