Synoptic meteorology, the study of large scale weather systems and forecasting using observation, and dynamic meteorology, the study of the laws of physics involved in air movement, are treated in this major new text in two volumes. Volume I covers kinematics, elementary atmospheric dynamics and thermodynamics, and the principles of quasi-geostrophic theory; there is also an introduction to modern observing systems, including Doppler radar, wind profilers, and navigation-aid sondes. Volume II covers the formation, motion, and climatology of extratropical weather systems in the context of quasi-geostrophic theory and "IPV thinking", the formation and structure of fronts and jets, applications of semi-geostrophic theory, and the observed structure and dynamics of precipitation systems in midlatitudes.