International Sigmet / Convective Sigmet 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.