WSER20 OMAA 161710 OMAE SIGMET 9 VALID 161710/162000 OMAA- OMAE EMIRATES FIR OBSC TS OBS WI N2400 E05540 - N2320 E05520 - N2350 E05430 - N2540 E05610 - N2500 E05630 - N2400 E05540 TOP ABV FL400 MOV E 15KT WKN=