171 WSPA10 PHFO 262339 SIGPAW KZAK SIGMET WHISKEY 2 VALID 262340/270340 PHFO- OAKLAND OCEANIC FIR EMBD TS WI N0630 E13410 - N0540 E13740 - N0350 E13740 - N0340 E13410 - N0630 E13410. TOPS TO FL550. MOV WSW 15KT. NC. BASED ON SATELLITE OBS.