FVXX21 KNES 230537 VA ADVISORY DTG: 20210123/0537Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/100 INFO SOURCE: GOES-16. WEBCAM. RADIOSONDE. ERUPTION DETAILS: ONGOING VA EMS. OBS VA DTG: 23/0510Z OBS VA CLD: SFC/FL190 N1928 W09811 - N1838 W09809 - N1855 W09835 - N1902 W09834 - N1928 W09811 MOV E 10KT FCST VA CLD +6HR: 23/1100Z NO VA EXP FCST VA CLD +12HR: 23/1700Z NO VA EXP FCST VA CLD +18HR: 23/2300Z NO VA EXP RMK: INCANDESCENCE NOTED IN WEB CAB. A SINGLE SMALL PUFF ALSO SEEN IN STLT IMAGERY. VA MOV TO E OF SUMMIT. ...LEE NXT ADVISORY: WILL BE ISSUED BY 20210123/1130Z