****0000000174**** WSMC31 GMMC 310600 GMMM SIGMET U02 VALID 310640/311040 GMMC- GMMM CASABLANCA FIR SEV TURB FCST N OF LINE N3545 W00535 - N3530 W00550 - N3545 W00710 SFC/FL050 STNR WKN=