WCPA07 PHFO 281258 WSTPAT KZAK SIGMET TANGO 2 VALID 281250/281850 PHFO- OAKLAND OCEANIC FIR CNL SIGMET TANGO 1 VALID 280745/281345. TC MAYSAK HAS EXITED OAKLAND OCEANIC FIR. REFER TO SIGMETS ISSUED BY RHPI MANILA SERIES SIGMET 1 UNDER PRODUCT WCPH31 RPLL.