Visualization
ES1902  Examine how barometric pressure changes with weather conditions.
  !   Click the image to see the animation. Use the movie controls to step through the images while you examine changes in the graph.

This animation shows color-enhanced satellite images of the "Storm of the Century," which occurred March 12 through 14, 1993. Different colors in the clouds indicate the intensity of precipitation falling from them.

The graph below the images shows how barometric pressure changed at West Palm Beach, Florida as the storm approached and passed.
Satellite images—Department of Atmospheric Sciences,
University of Illinois at Urbana-Champaign