Polar Lows provides a comprehensive review of our understanding of the small, high latitude weather systems known as polar lows. These often-vigorous depressions are a hazard to maritime operations and high latitude communities, yet have only been investigated in detail since the 1960s. In this volume the authors describe the climatological distribution of these lows, the observational investigations into their structure, the operational forecasting of polar lows and the theoretical research into why they develop. They also discuss the experiments carried out with high resolution numerical weather forecast models that have shown that some polar lows can be predicted a day or more in advance. The book has been written by a number of experts within the field and has been carefully edited to form an integrated, cohesive volume. It will be of value to researchers in meteorology and climatology, as well as professional weather forecasters concerned with polar regions.