####018000210####
WSTU31 LTFM 170644

LTBB SIGMET 3 VALID 170644/171000 LTFM-
LTBB ISTANBUL FIR EMBD TS OBS AT 0644Z WI N4009 E02651 - N4114 E02919
- N4108 E03033 - N3931 E02912 - N4009 E02651 TOP FL330 MOV NE 20KT 
INTSF=