FVXX21 KNES 201748 VA ADVISORY DTG: 20090820/1747Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 1401-09 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2009/012 INFO SOURCE: MEXICO CITY MWO. GOES-12. GFS WINDS. VOLCANO WEB CAMERA. ERUPTION DETAILS: ASH REPORTED BY MEXICO CITY MWO AT 20/1645Z TO FL270. OBS VA DTG: 20/1715Z OBS VA CLD: SFC/FL270 5NM WID LINE BTN N1857 W09846 - N1859 W09838. MOV W 5KT FCST VA CLD +6HR: 20/2330Z SFC/FL270 5NM WID LINE BTN N1850 W09911 - N1856 W09852. FCST VA CLD +12HR: 21/0530Z SFC/FL270 NO ASH EXP FCST VA CLD +18HR: 21/1130Z NO ASH EXP RMK: MEXICO CITY MWO REPORTED ASH AROUND 1645Z. ASH SEEN IN VIS IMAGERY MVG TO W 7NM OUT FROM SUMMIT. ASH IS EXPECTED TO DISSIPATE AFTER 6 HRS. ...EVANS NXT ADVISORY: WILL BE ISSUED BY 20090820/2345Z NNNN