International Sigmet / Convective Sigmet
Issued by NWS
Issued by NWS
486 WSPA06 PHFO 230419 SIGPAS KZAK SIGMET SIERRA 4 VALID 230415/230815 PHFO- OAKLAND OCEANIC FIR EMBD TS OBS AT 0415Z WI N0415 W15000 - N0815 W14630 - N0600 W14100 - N0400 W14200 - N0415 W15000. TOP FL530. STNR. NC.