WSPA06 PHFO 171726
SIGPAS

KZAK SIGMET SIERRA 4 VALID 171725/172125 PHFO-
OAKLAND OCEANIC FIR EMBD TS OBS AT 1725Z WI N1245 W14745 - N0945
W14000 - N0330 W14045 - N0345 W14815 - N0115 W15200 - N0415 W15445 -
N1130 W15400 - N1245 W14745. TOP FL570. STNR. NC.