FVXX20 KNES 212040 VA ADVISORY DTG: 20121221/2040Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 1401-09 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2012/299 INFO SOURCE: MEXICO CITY MWO. GOES-13. GFS WINDS. ERUPTION DETAILS: EMISSION AT 21/1450Z OBS VA DTG: 21/2015Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST VA CLD +6HR: 22/0230Z FCST VA CLD +12HR: 22/0830Z FCST VA CLD +18HR: 22/1430Z RMK: VA FROM THIS EMISSION IS NO LONGER OBSERVED IN IMAGERY ...SCHWARTZ NXT ADVISORY: NO FURTHER ADVISORIES