WSPY31 SGFA 131717
SGFA SIGMET 4 VALID 131720/132120 SGAS -
SGFA ASUNCION FIR EMBD TS OBS AT 1700Z E OF LINE S2713 W05831 - S2520
W05717 - S2417 W05754 - S2229 W05741 TOP FL390 MOV ENE 12KT NC=