WCPA13 PHFO 200730 WSTPAZ KZAK SIGMET ZULU 3 VALID 200730/201330 PHFO- OAKLAND OCEANIC FIR TC MEKKHALA OBS AT 0600Z N1425 E13640. CB TOP FL570 WI 150NM OF CENTER. MOV WNW 10KT. INTSF. FCST 1200Z TC CENTER N1455 E13540.