This pack covers Meteorology in UK waters with particular relevance to the RYA courses. The essential definitions are dealt with and wind forces and their effect on sea states are well illustrated. there are also a number of photographs of cloud formations and the resulting weather systems. These cards have questions and answers on both sides, so effectively have 98 problems for the student to deal with. Often used as a teaching aid in evening classes or as part of revision for exams. There are 50 cards in the pack.