FVXX23 KNES 140040 VA ADVISORY DTG: 20200914/0040Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2020/821 INFO SOURCE: GOES-EAST. NWP MODELS. ERUPTION DETAILS: CONTG VA EMS. OBS VA DTG: 14/0031Z OBS VA CLD: SFC/FL220 N1903 W09840 - N1903 W09837 - N1849 W09830 - N1847 W09840 - N1903 W09840 MOV S 5-10KT FCST VA CLD +6HR: 14/0630Z SFC/FL220 N1902 W09839 - N1902 W09836 - N1826 W09829 - N1826 W09845 - N1902 W09839 FCST VA CLD +12HR: 14/1230Z NO VA EXP FCST VA CLD +18HR: 14/1830Z NO VA EXP RMK: VA EXT UP TO 15 NM S OF SUMMIT. WX CLDS IN AREA MAY OBSC PORTION OF VA PLUME. CONTD S-LY FL MVMT EXP THRU T+6. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20200914/0645Z