WCPA13 PHFO 301335 WSTPAZ KZAK SIGMET ZULU 12 VALID 301335/301335 PHFO- OAKLAND OCEANIC FIR CNL SIGMET ZULU 11 VALID 301110/301335. TC HAIKUI HAS EXITED OAKLAND OCEANIC FIR. REFER TO SIGMETS ISSUED BY JAPAN METEOROLOGICAL AGENCY. SEE ALSO CONVECTIVE SIGMET UNIFORM ISSUED BY PHFO.