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WSUY31 SUMU 171200

SUEO SIGMET 4 VALID 171200/171600 SUMU-
SUEO MONTEVIDEO FIR EMB TS FCST WI S3152 W05805 - S3209 W05556 - S3534 W05526 - S3419 W05854 - S3309 W05829 - S3152 W05805 TOP FL380 MOV E 05KT NC=