FVXX20 KNES 240738 VA ADVISORY DTG: 20150724/0738Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2015/164 INFO SOURCE: MEXICO CITY MWO. GFS WINDS. VOLCANO WEB CAMERA. ERUPTION DETAILS: POSSIBLE VA EM OBS VA DTG: 24/0715Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL230 150/5-10KT FCST VA CLD +6HR: 24/1330Z FCST VA CLD +12HR: 24/1930Z FCST VA CLD +18HR: 25/0130Z RMK: POSSIBLE VA EM SEEN IN WEBCAM MOVING NW. MEXICO CITY MWO ALSO CONFIRMED ACT AND WILL ISSUE SIGMET. EM NO DETECTABLE IN STLT DUE TO WX CLDS. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20150724/1345Z