FVXX20 KNES 070525 VA ADVISORY DTG: 20120707/0523Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 1401-09 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2012/253 INFO SOURCE: MEXICO CITY MWO. ERUPTION DETAILS: NOT AVBL 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