FVXX20 KNES 181038 VA ADVISORY DTG: 20130818/1038Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 1401-09 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2013/240 INFO SOURCE: MEXICO CITY MWO. VOLCANO WEB CAMERA. ERUPTION DETAILS: REPORT OF EXHALATION 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