FVXX21 KNES 010053 VA ADVISORY DTG: 20130301/0053Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 1401-09 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2013/020 INFO SOURCE: MEXICO CITY MWO. CENAPRED. ERUPTION DETAILS: MWO RPRT BRIEF EMISSION AT 0045Z TO FL220 MOV E AT 20 KTS 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