International Sigmet / Convective Sigmet
Issued by NWS
Issued by NWS
999 WSPA06 PHFO 031307 SIGPAS KZAK SIGMET SIERRA 1 VALID 031305/031705 PHFO- OAKLAND OCEANIC FIR FRQ TS OBS AT 1305Z WI N0645 E17500 - N0930 E17730 - N0745 W17700 - N0515 W17745 - N0645 E17500. TOP FL500. MOV SW 5KT. NC.