22:56:51 2012-02-23 RA90 220830UTC FEB. 2012 NAVIGATIONAL WARNING TO ALL STNS SD0054 YELLOW SEA,YANTAI PORT WESTERN HARBOUR BUOY NO.25 TEMPORARILY CHANGED TO 37-43-12.4N/121-04-27.2E FLASH GREEN 4 SECONDS GREEN PILLAR. THE REST REMAIN. CAUTION ADVISED SHANDONG MSA, CHINA.