FVXX20 KNES 151911 VA ADVISORY DTG: 20181115/1911Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2018/494 INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS VOLCAT. ERUPTION DETAILS: VA EM OBS VA DTG: 15/1902Z OBS VA CLD: SFC/FL230 N1906 W09805 - N1856 W09805 - N1857 W09813 - N1905 W09813 - N1906 W09805 MOV E 20KT FCST VA CLD +6HR: 16/0100Z SFC/FL230 NO ASH EXP FCST VA CLD +12HR: 16/0700Z NO ASH EXP FCST VA CLD +18HR: 16/1300Z NO ASH EXP RMK: DISCRETE VA EM SEEN IN STLT MOV QUICKLY DUE E. VA EM EXPECTED TO DISP WI 6 HRS. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20181116/0115Z