FVXX21 KNES 280832 VA ADVISORY DTG: 20201228/0832Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2020/1097 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONTG VA EMS. OBS VA DTG: 28/0821Z OBS VA CLD: SFC/FL190 N1902 W09837 - N1900 W09835 - N1817 W09928 - N1831 W09938 - N1902 W09837 MOV SW 15KT FCST VA CLD +6HR: 28/1430Z SFC/FL190 N1902 W09837 - N1859 W09836 - N1839 W09941 - N1855 W09945 - N1902 W09837 FCST VA CLD +12HR: 28/2030Z SFC/FL190 N1902 W09838 - N1900 W09837 - N1831 W09925 - N1841 W09934 - N1902 W09838 FCST VA CLD +18HR: 29/0230Z SFC/FL190 N1903 W09837 - N1901 W09835 - N1829 W09925 - N1842 W09934 - N1903 W09837 RMK: FAINT VA OBS UP TO 65 NM SW OF SUMMIT BELOW FL190. CONS VA EMS OBS IN WEBCAM OVER PAST FEW HRS. CONTD SW-LY MVMT EXP THRU T+18 HRS. LOWER CONFIDENCE IN FCST DUE TO EXP LGT FL WINDS BY T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20201228/1430Z