FVXX22 KNES 161640 VA ADVISORY DTG: 20241216/1640Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17693 FT (5393 M) ADVISORY NR: 2024/858 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: CONS VA EMS OBSD OBS VA DTG: 16/1621Z OBS VA CLD: SFC/FL210 N1902 W09837 - N1900 W09824 - N1847 W09838 - N1901 W09838 - N1902 W09837 MOV SE 10KT FCST VA CLD +6HR: 16/2230Z SFC/FL210 N1902 W09840 - N1901 W09837 - N1837 W09819 - N1828 W09841 - N1902 W09840 FCST VA CLD +12HR: 17/0430Z SFC/FL210 N1925 W09846 - N1900 W09837 - N1857 W09837 - N1901 W09910 - N1925 W09846 FCST VA CLD +18HR: 17/1030Z SFC/FL210 N1927 W09851 - N1927 W09820 - N1859 W09837 - N1901 W09840 - N1927 W09851 RMK: VA EMS OBSD IN WEBCAM AND STLT IMG EXTG APPRX 10 NM SE FM SUMMIT. SE MVMT EXP TO SHIFT NW BY T+12 HRS, AND EXP TO SHIFT N BY T+18 HRS. MVMT AND HGT BASED ON WEBCAM, STLT OBS AND NWP MDLS. ...BERTALAN NXT ADVISORY: WILL BE ISSUED BY 20241216/2245Z