FVXX21 KNES 290637 VA ADVISORY DTG: 20190729/0637Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07740 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2019/812 INFO SOURCE: GOES-EAST. WEB CAM. VOLCAT. ERUPTION DETAILS: POSS VA EXHALATION 29/0550Z 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