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International Sigmet / Convective Sigmet
Issued by NWS

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906
WSPA06 PHFO 272255
SIGPAS

KZAK SIGMET SIERRA 1 VALID 272250/280250 PHFO-
OAKLAND OCEANIC FIR EMBD TS OBS AT 2255Z WI N1545 W16800 - N1245
W16530 - N1015 W16945 - N1315 W17130 - N1545 W16800. TOP FL550. MOV
SE 5KT. INTSF.