ZCZC FA79 260500 UTC JUL ESTONIAN NAV WARN 101/25 GULF OF FINLAND 290500-301400 UTC JUL NE OF OSMUSSAAR ISLAND FIRING PRACTICE AREA 1A CENTRED 59-22N 023-33E FIRING EXERCIJRS IN PROGRESS OTHER VESSELS MUST AVOID ENTRY INTO THE AREA STANDING BY VHF CH 16 AND 61 CANCEL 301400 UTC JUL NNNN