ZCZC JA13
011300 UTC MAY
POLISH NAV WARN 091/26
SOUTHERN BALTIC. POLISH COAST
THE MEASURING SPHERICAL YELLOW BUOY WRB-02
ESTABLISHED IN POSITION 55-07.34N 016-56.33E
YELLOW LIGHT FL (5)20S  RADAR REFLECTOR.
CAUTION ADVISED
NNNN