International Sigmet / Convective Sigmet
Issued by NWS
Issued by NWS
276 WSPA06 PHFO 121841 SIGPAS KZAK SIGMET SIERRA 1 VALID 121840/122240 PHFO- OAKLAND OCEANIC FIR FRQ TS OBS AT 1840Z WI N0530 E17300 - N0530 E17530 - N0330 E17530 - N0345 E17245 - N0530 E17300. TOP FL530. MOV W 5KT. INTSF.