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alternatives at the same accuracy level. HT-FRTC is very flexible for viewing geometry and atmospheric conditions, while allowing for an exact treatment of scattering and absorption using state-of-the-art algorithms. It was created by the Met Office Atmospheric Radiation sub-team, within

of highlights March began mostly settled, but rather cold. From the 9th onwards it turned rather milder but also unsettled and windy. The second half of the month was mostly settled, although with periods of rain from 23rd to 28th which became heaviest in the north-west, while the month ended very warm

for tropical regions. With a couple of notable exceptions (e.g. East Africa) La Niña, very broadly speaking, tends to increase the likelihood of wetter than normal conditions across many land areas of the tropics. More information on typical impacts can be found here https://www.metoffice.gov.uk/research

and only brief settled interludes when temperatures in southeastern England reached 30°C on several occasions. There was a strong rainfall contrast between the very wet west of Scotland/Cumbria and the dry/very dry central and southern England. The month opened with thunderstorm activity across central

the south at times. It turned hot in places, especially south-east England, around mid-month, and the 16th to 21st was settled with high pressure and plenty of warm sunshine for most parts of the UK. The weather turned much cooler and more unsettled from the 22nd, and it was very wet and windy

of rain, sleet and snow to parts of southern England and south Wales on Wednesday, but the extent of any snow is very uncertain. There is then a risk of further snow moving south across Scotland, northern England and the Midlands on Thursday”. ⚠️ Snow and ice warnings are in force for many

The heaviest rain is expected to be across Wales on Wednesday, with some central and southern parts of England and Wales potentially having a very wet day on Friday.  Further north, there will be some sunshine, but also some showers, which will turn heavier, more frequent later in the week

levels and warming oceans. “If we have any chance of avoiding the most severe impacts of global climate change, the science is telling us that we urgently need to see an emissions peak with figures falling very soon after.” Carbon dioxide concentrations in the atmosphere reached a record high

or thunderstorms are possible. As well as the hot daytime temperatures, a very warm night is also expected on Sunday night into Monday”. By Tuesday, the hot air mass will likely become displaced by fresher conditions. The weather then will become unsettled once again, with occasional Atlantic frontal systems

at the process level using numerical models such as Met Office flow over hills model: BLASIUS and the Unified Model at very high resolution, the development of parametrization schemes for use in the Unified Model and  operational lee-wave forecasting models. The work is supported by theory and detailed