Some bulletins include accounts of meteor sightings and data on currents.
Weekly bulletin presenting current nautical information for mariners. Bulletins contain brief notices of obstructions and dangers to navigation along coasts and waterways of U.S. and principal world ocean routes, including shipwrecks and derelict vessels, drifting buoys, and ice. Bulletins also include descriptions of selected U.S. and foreign port facilities and navigation aids, and other information for navigators.