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WSMO31 ZMUB 240400

ZMUB SIGMET A02 VALID 240500/240900 ZMUB-

ZMUB ULAANBAATAR FIR SEV TURB FCST S OF LINE N4673 E9391 - N4642

E10616 - N4615 E11146 FL230/390 MOV SE 30KMH INTSF=