IMPETUS is an interdisciplinary project funded by NERC and other UK research councils under the UK Droughts and Water Scarcity Programme. It brings together scientists from the meteorological, land surface, surface water and groundwater communities and social scientists from the water demand and forecast usability communities. The project involves internationally-leading scientists and social scientist from three NERC Research Centres (NCAS, BGS and CEH), four leading universities (Oxford, Reading, Newcastle, and Southampton), the Met Office and ECMWF. IMPETUS aims to improve the forecasting of UK drought on monthly to decadal timescales, by improving meteorological, hydrological and water demand forecasts and how they are combined to produce drought forecasts. This will be done in conjunction with stakeholders to ensure that drought forecasts are relevant for decision making.