WSOM31 OOMS 210030 OOMM SIGMET A01 VALID 210040/210430 OOMS- OOMM MUSCAT FIR EMBD TS OBS WI N1721 E05246 - N1812 E05425 - N1702 E05554 - N1540 E05330 - N1721 E05246 TOP FL380 MOV WNW NC=