FVXX20 KNES 181641 VA ADVISORY DTG: 20170918/1641Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2017/085 INFO SOURCE: NOAA CIMSS ALERT. SOCIAL MEDIA ERUPTION DETAILS: NEW EXHALATION AT 18/1610Z RMK: WE HAVE RECEIVED INFORMATION SUGGESTING A POSSIBLE VA EMISSION. WE WILL GATHER FURTHER INFORMATION AND ISSUE A FULL ADVISORY AS SOON AS POSSIBLE. NXT ADVISORY: AS SOON AS POSSIBLE