****0000000188****
WSMC31 GMMC 171830

GMMM SIGMET U04 VALID 171900/172300 GMMC-
GMMM CASABLANCA FIR
SEV TURB FCST N OF LINE N3540 W00435 - N3120 W00745 - N3150 W01040 -
N3535 W00645 SFC/FL100 STNR NC=