Weather map

Weather map
Weather map Weath"er map A map or chart showing the principal meteorological elements at a given hour and over an extended region. Such maps usually show the height of the barometer, the temperature of the air, the relative humidity, the state of the weather, and the direction and velocity of the wind. Isobars and isotherms outline the general distribution of temperature and pressure, while shaded areas indicate the sections over which rain has just fallen. Other lines inclose areas where the temperature has fallen or risen markedly. In tabular form are shown changes of pressure and of temperature, maximum and minimum temperatures, and total rain for each weather station since the last issue, usually 12 hours. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • weather map — noun (meteorology) a map showing the principal meteorological elements at a given time and over an extended region • Syn: ↑weather chart • Topics: ↑meteorology • Hypernyms: ↑map • Hyponyms: ↑ …   Useful english dictionary

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  • weather map — weath′er map n. mer a map or chart showing weather conditions over a wide area at a particular time, compiled from simultaneous observations at different places • Etymology: 1870–75, amer …   From formal English to slang

  • weather map — /ˈwɛðə mæp/ (say wedhuh map) noun a map or chart showing meteorological conditions over a wide area at a particular time, compiled from simultaneous observations at different places …  

  • weather map — noun Date: 1871 a map or chart showing the principal meteorological elements at a given hour and over an extended region …   New Collegiate Dictionary

  • weather map — noun a map that shows the analysis of meteorological quantities at various levels of the atmosphere …   Wiktionary

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