FVXX22 KNES 121053 VA ADVISORY DTG: 20181212/1053Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA_RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2018/321 INFO SOURCE: GOES-EAST. VOLCANO WEB CAMERA. CIMSS VOLCAT. ERUPTION DETAILS: POSS VA EM 12/1015Z 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