WSAG31 SAME 242248 SAMF SIGMET A2 VALID 242248/250248 SAME- SAMF MENDOZA FIR SEV MTW FCST AT 2248Z WI S2805 W06927 - S2918 W06937 - S2953 W06930 - S3015 W06937 - S3049 W07002 - S3115 W06954 - S3136 W06835 - S3001 W06757 - S2805 W06927 FL120/380 STNR NC=