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WSUY31 SUMU 231630

SUEO SIGMET 6 VALID 231630/231830 SUMU-
SUEO MONTEVIDEO FIR EMBD TS FCST WI S3405 W05624 - S3454 W05655 - S3529 W05453 - S3414 W05437 - S3405 W05624 TOP FL380 MOV ENE 05KT NC =