WVCA31 MHTG 191700
SIGMET COR
MHTG SIGMET B1 VALID 191620/192025 MHTG-      
CENTROAMERICA FIR VA FUEGO VOLCANO 1402-09 N1428 W09052 VA ASH DISPERSED OBS AT 181612Z BY NOTAMN A1890/08 TOP SFC/FL160 TO    
MOV S SE 20-25KT EXE CTN RDO 02NM NC=