File:Typical North Atlantic Tropical Cyclone Formation in August.png

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Summary

From http://www.nhc.noaa.gov/pastprofile.shtml archive copy at the Wayback Machine. (These images were accidentally misnamed - they are greatest probability of location, not formation.)

Licensing

This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.

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