FVXX20 KNES 231218 VA ADVISORY DTG: 20090923/1217Z VAAC: WASHINGTON VOLCANO: TURRIALBA 1405-07 PSN: N1001 W08346 AREA: COSTA.RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2009/001 INFO SOURCE: METAR. ERUPTION DETAILS: EMISSION NOTED IN METAR FROM MROC OR JUAN SANTAMARIA AT 23/1200Z 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 NNNN