WCPA13 PHFO 090903 KZAK SIGMET ZULU 2 VALID 090905/091505 PHFO- OAKLAND OCEANIC FIR TC VAMCO PSN CB OBS AT 167 WI N1530 E13000 - N1515 E13315 - N0600 E13330 - N0600 E13015 - N1530 E13000. CB TOPS TO FL540. MOV WNW 09KT. INTSF. FCST AT 1200Z TC CENTER PSN N1205 E12935. PLEASE ENSURE ALL FUTURE SIGMETS CONFORM TO THE FORMAT SPECIFIED IN ICAO ANNEX 3 CHAPTER 7 AND APPENDIX 6. REGARDS SADIS GATEWAY OPERATOR