A small craft advisory is a type of warning issued by the National Weather Service in the United States. It is issued when winds have reached, or are expected to reach within 12 hours, a speed marginally less than gale force. A Small Craft Advisory may also be issued when sea or lake ice exists that could be hazardous to small boats.
when do they issue a small craft advisory
when winds have reached, or are expected to reach within 12 hours, a speed marginally less than gale force