FVXX23 KNES 211427 VA ADVISORY DTG: 20230921/1427Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17693 FT (5393 M) ADVISORY NR: 2023/995 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMS OBS OBS VA DTG: 21/1406Z OBS VA CLD: SFC/FL210 N1925 W09927 - N1901 W09837 - N1904 W09932 - N1925 W09927 MOV W 10KT FCST VA CLD +6HR: 21/2000Z SFC/FL210 N1939 W10005 - N1901 W09836 - N1908 W10010 - N1939 W10005 FCST VA CLD +12HR: 22/0200Z SFC/FL210 N1953 W10045 - N1902 W09837 - N1913 W10052 - N1953 W10045 FCST VA CLD +18HR: 22/0800Z RMK: CONT VA EMS OBS MOV W IN STLT IMAGERY. VA FCST TO CONT W MOV THRU T+12HRS BEFORE DISP. VO ACT MODERATE TO HIGH. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20230921/2030Z