FVXX20 KNES 180725 VA ADVISORY DTG: 20130818/0725Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 1401-09 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2013/239 INFO SOURCE: MEXICO CITY MWO. GOES-13. GFS WINDS. ERUPTION DETAILS: VA NOT OBSERVED OBS VA DTG: 18/0645Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST VA CLD +6HR: 18/1300Z FCST VA CLD +12HR: 18/1900Z FCST VA CLD +18HR: 19/0100Z RMK: VA NOT OBSERVED IN PARTLY CLDY STLT IMAGERY. MWO ISSUED END SIGMET. WEBCAM SHOWS LOW LEVEL EMISSIONS WHICH APPEAR TO BE GAS/STEAM. ...SALEMI NXT ADVISORY: NO FURTHER ADVISORIES