YELLOW SEAM/V WEI DE SHAN TRIAL VOYAGE FROM 050130UTC TO 060900UTC JUL. IN AREA BOUNDED BY THE LINES JOINING. 36-42.0N 122-30.5E; 36-42.0N 122-41.5E; 36-35.0N 122-41.5E; 36-35.0N 122-30.5E. CAUTION ADVISED. SHANDONG MSA CHINA