Drought forecasting and management are major issues in current water resources management. Drought severity relates not only to environmental conditions (i.e. hydrometeorological and hydrological factors) but also to human-use factors (i.e. the way in which water is stored, distributed and used for domestic, industrial and agricultural purposes) and ecological factors (i.e. impacts on fisheries, conservation areas and recreation). Drought awareness has increased, particularly since 1950, because of increasing human pressures on water resources and most recently with the recognition of the affects of abstraction on river levels and river ecology. With the increasing concerns about (i) global warming and the uncertainty of hydrological impacts at the regional scale, and (ii) water allocation to meet ecological needs, water resources management in a droughty environment has become a highly topical issue. This volume presents a critical analysis of issues involved in developing effective strategies for drought management and planning in the humid temperate zone. It will provide the basis for advancing scientifically-sound water resources management for the next millennium.