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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

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

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, particularly between day and night. The boundary layer depth is simply the current thickness of this layer. Fraction of horizontal grid square occupied by cloud below 1000 feet above sea level. Time steps J kg-1 0.1 [None] Hourly (1h-126h) J kg-1 0.1 [None] Hourly (1h-126h) J kg-1 0.1 [None] Hourly (1h

Tuesday will begin largely dry and bright across northwestern areas, with settled conditions prevailing. A band of cloud and scattered showers will stretch from the southwest approaches through Wales to southeastern Scotland and northeastern England. This band is expected to fragment through

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

on the 2nd, but showers became more frequent in the north-east from early afternoon. Cloud, mist and fog with light rain spread across the south and parts of the Midlands on the 3rd, with sunshine and showers in the north, the showers turning thundery over the Pennines at times. High pressure then built

Thursday will begin with a few early mist and fog patches, particularly in rural areas. These will steadily lift through the morning, leaving most places dry with a mix of variable cloud and sunny spells. The far northwest and the far southeast may see cloudier skies at times, with the odd light

Friday's weather will start with some showery rain across central parts of the country, though this is expected to ease through the morning. Northern areas will see a scattering of showers under variable cloud cover, and it may feel rather cool here, especially in more exposed locations

The weather is set to be unsettled, with a mix of rain, cloud, and some brighter spells.

England, conditions remain rather cloudy and drizzly, although brighter skies are expected to develop to the lee of hills, spreading more widely across England as the day progresses. Here, it will feel warm and humid, especially where the sun breaks through. Despite the cloud and breeze, it's rather