International Sigmet / Convective Sigmet
Issued by NWS
Issued by NWS
539 WSPA10 PHFO 181251 SIGPAW KZAK SIGMET WHISKEY 1 VALID 181250/181650 PHFO- OAKLAND OCEANIC FIR EMBD TS OBS AT 1250Z WI N0900 W16130 - N0800 W15330 - N0415 W14730 - N0200 W14930 - N0430 W15600 - N0445 W16230 - N0900 W16130. TOP FL570. STNR. INTSF.