FVXX20 KNES 171201 VA ADVISORY DTG: 20190617/1201Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2019/437 INFO SOURCE: GOES-EAST. MEXICO CITY MWO. VOLCAT. ERUPTION DETAILS: VA EM OBS IN STLT. 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