WSMP31 LMMM 020658 LMMM SIGMET U01 VALID 020655/021055 LMML- LMMM MALTA FIR SEV TURB FCST WI N3420 E01500 - N3420 E02100 - N3500 E02100 - N3600 E01500 - N3420 E01500 FL160/260 STNR WKN=