Following a prolonged heat wave across the UK Prof Liz Bentley, RMetS Chief Executive and Tara Thompson, head of Communications at RMetS, discuss what defines a heatwave, what meteorological conditions cause such extremes of temperature and the kind of environmental and social effects they can have. Our membership is open to everyone and anyone with an interest in weather and climate, whether that be as a science, profession or interest. We have over 3,300 members from more than 50 countries that includes academics, scientists and professional meteorologists as well as students and keen weather enthusiasts. The Society's programmes are broad and diverse, with many activities accessible not only to members but also to the general public and the wider meteorological and climate community. For more information on our charitable activities and events visit our website at www.rmets.org.  Thank you for listening! Comments and ideas for future topics are always welcomed so please get in touch at jo.bayliss@rmets.org. Twitter - @rmets Instagram - @rmets_