FVXX21 KNES 011607 VA ADVISORY DTG: 20150501/1607Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA.RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2015/024 INFO SOURCE: OVSICORI-UNA. ERUPTION DETAILS: EMISSION AT 01/1536Z 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