Weather forecasts are probably the most visible and commonly used type of scientific forecast, influencing decisions small and large on a daily basis. Yet the vast majority of modern weather forecasts provide little in the way of measures of the uncertainty. The goal of this conference is to bring together a diverse group of researchers: meteorologists familiar with the new methods of forecasting, decision scientists who study decision making under uncertainty from various perspectives (economics, psychology, philosophy), as well as those studying information markets. This should benefit all involved. The meteorologists should gain insight on how to best to both combine and convey their predictions and the social scientists should gain access to a rich test bed of decision making problems. The conference will be held at the Met office in Exeter, UK.