The buoy would be white, with neon orange stripes and a black circle with the words: “6 MPH” on the side. A fallen tree lurks in the vicinity of where the marker would usually be.

Four self-locating datum marker buoys, SLDMBs, were also deployed to support the Coast Guard’s Search and Rescue Optimal Planning System, refining drift predictions in changing sea conditions.

Four self-locating datum marker buoys, dropped by search crews, are actively transmitting data, enhancing Search and Rescue Optimal Planning System drift predictions to refine the search for the ...