FVXX22 KNES 121808 VA ADVISORY DTG: 20210912/1808Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/544 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA EMS CONT OBS VA DTG: 12/1751Z OBS VA CLD: SFC/FL200 N1918 W09845 - N1902 W09837 - N1901 W09838 - N1913 W09852 - N1918 W09845 MOV NW 10KT FCST VA CLD +6HR: 13/0000Z SFC/FL200 N1920 W09845 - N1902 W09836 - N1859 W09838 - N1913 W09854 - N1920 W09845 FCST VA CLD +12HR: 13/0600Z NO VA EXP FCST VA CLD +18HR: 13/1200Z NO VA EXP RMK: INTMT VA PUFF DETECTED ON STLT MOVG NW OF SUMMIT. WEBCAM SHOWS VA EMS. NO CHG FCST IN MDL FL WINDS NXT 6 HR. ...KONON NXT ADVISORY: WILL BE ISSUED BY 20210913/0015Z