FVXX20 KNES 210735 VA ADVISORY DTG: 20171121/0735Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2017/221 INFO SOURCE: NON-OPERATIONAL GOES-16. MEXICO CITY MWO. NWP MODELS. ERUPTION DETAILS: NEW EMS AT 21/0715Z OBS VA DTG: 21/0722Z OBS VA CLD: SFC/FL250 N1855 W09833 - N1844 W09831 - N1843 W09838 - N1853 W09840 - N1855 W09833 MOV S 20-25KT FCST VA CLD +6HR: 21/1330Z SFC/FL250 NO ASH EXP FCST VA CLD +12HR: 21/1930Z NO ASH EXP FCST VA CLD +18HR: 22/0130Z NO ASH EXP RMK: IMAGERY SHOWS NEW VA EMS MOVING S. PREVIOUS EMS HAVE DISSIPATPED. THIS EMS EXPECTED TO DISSIPATE WITHIN 6 HRS BUT ADDITIONAL EMS ARE POSSIBLE. ...SCHWARTZ NXT ADVISORY: WILL BE ISSUED BY 20171121/1330Z