FVXX21 KNES 241623 VA ADVISORY DTG: 20170824/1623Z VAAC: WASHINGTON VOLCANO: POAS 345040 PSN: N1011 W08413 AREA: COSTA_RICA SUMMIT ELEV: 8884 FT (2708 M) ADVISORY NR: 2017/068 INFO SOURCE: OVSICORI-UNA. ERUPTION DETAILS: ERUPTIONS AT 24/1520Z AND 24/1530Z 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