What was anyone not thinking? In fog with no navigation system or marine radio.
CHICAGO — The Coast Guard located a motor vessel with 49 people aboard after one of the passengers called 911 stating she was concerned that the operator had become disoriented in heavy fog off of Navy Pier near the Chicago Harbor breakwall, Saturday.
Shortly before 11 p.m., a watchstander in the Coast Guard Sector Lake Michigan command center received a call from Chicago 911 that a concerned passenger aboard the vessel, Serenity, a 56-foot yacht, reported the vessel had become disoriented in heavy fog with visibility less than one-quarter of a mile.


The crowdsourced bathymetry database, displayed in the IHO Data Centre for Digital Bathymetry Data Viewer, has an updated user interface. 




