000 WSPA02 PHFO 150544 SIGPAO KZAK SIGMET OSCAR 1 VALID 150540/150940 PHFO- OAKLAND OCEANIC FIR EMBD TS OBS AT 0540Z WI S0115 W17400 - S0500 W17100 - S0500 W17945 - S0245 W17945 - S0115 W17400. TOP FL500. STNR. NC.