International Sigmet / Convective Sigmet
Issued by NWS
Issued by NWS
978 WSPA06 PHFO 280546 SIGPAS KZAK SIGMET SIERRA 4 VALID 280540/280940 PHFO- OAKLAND OCEANIC FIR EMBD TS OBS AT 0545Z WI N1530 W16730 - N1445 W16515 - N1200 W16645 - N1145 W16930 - N1530 W16730. TOP FL560. MOV E 5KT. NC.