a synoptic chart showing weather conditions, compiled from simultaneous observations taken at various weather stations
weather map in American English
US
a map or chart showing the condition of the weather in a certain area at a given time byindicating barometric pressures, temperatures, wind direction, etc.
Examples of 'weather map' in a sentence
weather map
Weather maps show the cold front as a line with triangles pointing in the direction the cold air is advancing.