SOUTH AMERICA SYNOPTIC DISCUSSION - INTERNATIONAL DESKS NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1141 AM EDT TUE JUN 12 2018 GFS DATA AT FTPPRD.NCEP.NOAA.GOV/PUB/DATA/NCCF/COM/GFS/PROD/ SYNOPSIS (VALID FROM JUNE 06 AT 0000 UTC): DISCUSSION NOT AVAILABLE. DIAZ...INUMET (URUGUAY) SANCHEZ...SMN (ARGENTINA) DAVISON/GALVEZ...WPC (USA)