000 WSPA12 PHFO 131812 SIGPAY KZAK SIGMET YANKEE 4 VALID 131820/132220 PHFO- OAKLAND OCEANIC FIR EMBD TS OBS AT 1740Z WI N3000 W15730 - N3000 W15330 - N2700 W15400 - N2445 W15700 - N2530 W15930 - N2800 W15745 - N3000 W15730. TOP FL450. MOV E 5KT. NC.