Thousands of global observing stations provide meteorological information about the earth's atmosphere as often as once each hour. Surface data may be plotted on geographical maps to provide the meteorologist useful information regarding weather patterns for a region of interest. Upper-air meteorological data (soundings) are often analyzed by means of thermodynamic diagrams relating temperature, humidity, and atmospheric pressure and serve as valuable tools for making local adaptive forecasts. These surface maps and upper-air diagrams are commonly available for examination only at specific locations for the most recent available observation time. In an effort to use and easily visualize continuously archived observations, graphical user interfaces for both the surface and upper-air meteorological data have been developed. A description of the interfaces is given in which soundings and surface data may be visualized at any global location and time of interest