Winter 2014 has seen some of the highest ever rainfall recorded in the UK. This has led to destructive floods and sea surges causing adverse effects to the environment, infrastructure and communities. As part of the relief effort, Downing Street instigated FloodHack. This event looked for help from the GIS developer community to find methods of using the data collected by the Environment Agency, amongst others, to aid in the efforts. As part of this the Environment Agency opened up data to the public so developers could start building operational apps. A team of us at Esri UK investigated the newly released data and from this created a series of interactive applications, available here. This opportunity reinforced to me the role GIS has to play in disaster management and also the exciting possibilities for developers as the Government opens up data to the public.