In meteorology, any chart or map on which data and analyses are presented that describe the state of the atmosphere over a large area at a given moment in time. The possible variety of such charts is [..]

Chart showing lines of equal pressure (isobars), corrected to mean sea level (MSL), over a broad area (eg Australia). Based on the synoptic observations taken simultaneously every 3 hours by weather o [..]

In meteorology, any chart or map on which data and analyses are presented that describe the state of the atmosphere over a large area at a given moment in time. 

a weather map.

In cartography, a systematic representation of general conditions currently prevailing or predicted to prevail over a considerable geographic area at a designated time, for example, a chart used by me [..]

A chart showing the distribution of meteorological conditions over a given area at a given time. Popularly called a weather map.

Any map or chart that depicts meteorological or atmospheric conditions over a large area at any given time.

Chart showing meteorological conditions over a region at a given time; weather map.

Chart showing meteorological conditions over a region at a given time; weather map.

A chart, such as the familiar weather map, which depicts the distribution of meteorological conditions over an area at a given time.

A map of the whole Sun in absolute heliographic coordinates, displaying an integrated view of solar features observed during a Carrington rotation. definition courtesy of: NWS Space Weather Prediction Center

Any map or chart that depicts meteorological or atmospheric conditions.

A map showing large-scale weather patterns in an area at a given time.

Any map or chart that depicts meteorological

Any map or chart that depicts meteorological or atmospheric conditions over a large area at any given time.

 A weather map which gives a general view of meteorological conditions over a large area in a given time by the use of isobars.

(Also called surface map, sea level chart, sea level pressure chart.) An analyzed chart of surface weather observations. Essentially, a surface chart shows the distribution of sea level pressure, incl [..]

Any map or chart that depicts meteorological or atmospheric conditions over a large area at any given time.