000 WSPA02 PHFO 231753 SIGPAO KZAK SIGMET OSCAR 1 VALID 231750/232150 PHFO- OAKLAND OCEANIC FIR EMBD TS OBS AT 1750Z WI N0545 W17515 - N0515 W16815 - N0215 W16945 - N0215 W17530 - N0545 W17515. TOP FL550. MOV W 5KT. INTSF.