WSPA08 PHFO 201028 KZAK SIGMET UNIFORM 6 VALID 201025/201425 PHFO- OAKLAND OCEANIC FIR SEV TURB FCST WI N2800 W17700 - N2745 W17145 - N2130 W17145 - N2130 W17800 - N2800 W17700. FL250/350 STNR. NC. PLEASE ENSURE ALL FUTURE SIGMETS CONFORM TO THE FORMAT SPECIFIED IN ICAO ANNEX 3 CHAPTER 7 AND APPENDIX 6. REGARDS SADIS GATEWAY OPERATOR