000 WSPA06 PHFO 242223 SIGPAS KZAK SIGMET SIERRA 1 VALID 242220/250220 PHFO- OAKLAND OCEANIC FIR SEV TURB FCST WI N2100 W16115 - N2015 W15715 - N1130 W15630 - N1045 W16100 - N2100 W16115. FL270/350. STNR. NC.