FVXX25 KNES 051757 VA ADVISORY DTG: 20210905/1757Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/528 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: OCNL EMS OBS VA DTG: 05/1740Z OBS VA CLD: SFC/FL190 N1908 W09910 - N1905 W09857 - N1854 W09859 - N1856 W09912 - N1908 W09910 MOV W 10KT FCST VA CLD +6HR: 05/2330Z SFC/FL190 N1907 W09910 - N1902 W09837 - N1859 W09839 - N1856 W09910 - N1907 W09910 FCST VA CLD +12HR: 06/0530Z NO VA EXP FCST VA CLD +18HR: 06/1130Z NO VA EXP RMK: VA CLD DRIFTING W APPROX. 30NM IN STLT IMAGERY. WX CLDS OBSC WEBCAM. LTLCG EXPECTED IN WINDS THRU T+6 HRS. ...COVERDALE NXT ADVISORY: WILL BE ISSUED BY 20210906/0000Z