FVXX20 KNES 071341 VA ADVISORY DTG: 20190807/1341Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2019/665 INFO SOURCE: WEB CAM. ERUPTION DETAILS: NEW DARK GRAY VA EMS SHOWN IN WEBCAM 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