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their numbers and distribution. Meanwhile the earliest surviving operational forecast, produced by Ernest Gold on 24 October 1916, shows that these gave only a very brief indication of wind speed and direction and of the weather to be expected for the day of issue and the following day. By the end

a plume of air that is briefly super-saturated with water vapour. Observations of contrail formation conditions show that it is necessary to achieve super-saturation with respect to liquid water in order for cloud particles to be nucleated in the mixing plume. This mixing process is shown

air pushes in temperatures will once again trend upwards and be mostly a little above average by the bank holiday weekend, although still perhaps remaining nearer average in the extreme northeast. Looking further ahead Next week looks fairly settled at first, with a good deal of dry and mild

with temperatures expected to reach 21C in some southern spots on Saturday. However, from Sunday it’ll be cooler for most and as we move into next week there’s a more mixed picture once again. Spells of rain affecting many places before more settled conditions are expected through the middle of the week

and processes needed to support forecast-based early action in that context. Once complete, focal studies informed the production of detailed concept notes setting out evidenced and costed proposals for taking early action to scale which can be implemented by (for example) NGOs, donors

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

to remain unsettled, especially for northern and western parts of the UK. However, there are some signals on the horizon that the weather for the following week could once again become more settled. You can find the latest forecast on our website, on YouTube, by following us on X and Facebook, as well as on our mobile app which is available for iPhone from the App store and for Android from the Google Play store. 

that are historically rare (once per century in the recent past) are projected to occur frequently (at least once per year) at many locations by 2050 in all RCP scenarios, especially in tropical regions”. Without adaptation measures, this will result in increased occurrence of severe flooding and other associated

altitudes, this causes melting to increase, in a process known as the melt-elevation positive feedback. Once more than 10% of the ice is lost, the change may be irreversible even if temperatures return to pre-industrial levels, leading to an alternate intermediate stable state with less mass in the ice

. Some prompt questions could include: • What is climate change? • What does it make you think of? • What are some of the impacts of climate change? • How might climate change affect people around the world? Slides 4 Groupwork Once they have had some time to discuss, come back together as a group