One of the most promising developments for early warning of climate hazards
is seasonal climate forecasting. Already forecasts are operational in many
parts of the tropics and sub-tropics, particularly for droughts and floods
associated with ENSO events. Prospects for further development of seasonal
forecasting for a range of climatic hazards are reviewed, illustrated with
case studies in Africa, Australia, the U.S.A. and Europe. A critical evalu
ation of the utility of seasonal forecasts centres on vulnerability, commun
ication channels, and effective responses. In contrast to short-term predic
tion, seasonal forecasts raise new issues of preparedness and the use of in
formation.