International Sigmet / Convective Sigmet
Issued by NWS
Issued by NWS
604 WSPN03 KKCI 161750 SIGP0C KZAK SIGMET CHARLIE 4 VALID 161750/162150 KKCI- OAKLAND OCEANIC FIR FRQ TS OBS AT 1750Z WI N1145 W13215 - N0945 W12745 - N0530 W13330 - N0630 W13900 - N1145 W13215. TOP FL550. STNR. NC.