WSAG31 SAME 222350 SAMF SIGMET 3 VALID 222350/230350 SAME- SAMF MENDOZA FIR EMBD TS FCST AT 2350Z WI S3523 W06916 - S3613 W06932 - S3708 W06806 - S3601 W06527 - S3508 W06727 - S3523 W06916 TOP FL400 MOV ESE 05KT NC=