International Sigmet / Convective Sigmet
Issued by NWS
Issued by NWS
437 WSPA10 PHFO 170641 SIGPAW KZAK SIGMET WHISKEY 1 VALID 170640/171040 PHFO- OAKLAND OCEANIC FIR EMBD TS OBS AT 0640Z WI N1445 W16500 - N1445 W16230 - N0945 W16300 - N0945 W16515 - N1445 W16500. TOP FL570. MOV W 5KT. INTSF.