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wuarchive.wustl.edu
The `/multimedia/images/wx' directory contains GIF
weather images of North America. Files are updated hourly and take this
general form: `CV100222'. The first two letters tell the type of file: CV
means it is a visible-light photo taken by a weather satellite. CI
images are similar, but use infrared light. Both these are in black and
white. Files that begin with SA are color radar maps of the U.S. that
show severe weather patterns but also fronts and temperatures in major
cities. The numbers indicate the date and time (in GMT - five hours
ahead of EST) of the image: the first two numbers represent the month,
the next two the date, the last two the hour. The file `WXKEY.GIF'
explains the various symbols in SA files.
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