FVXX22 KNES 221209 VA ADVISORY DTG: 20230722/1209Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17693 FT (5393 M) ADVISORY NR: 2023/857 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA EMS MOVG W OBS VA DTG: 22/1146Z OBS VA CLD: SFC/FL200 N1915 W09912 - N1902 W09836 - N1900 W09837 - N1859 W09914 - N1915 W09912 MOV W 10KT FCST VA CLD +6HR: 22/1800Z SFC/FL200 N1922 W09937 - N1902 W09836 - N1900 W09837 - N1855 W09940 - N1922 W09937 FCST VA CLD +12HR: 23/0000Z NO VA EXP FCST VA CLD +18HR: 23/0600Z NO VA EXP RMK: VA EMS OBS IN STLT IMAGERY MOVG W APPRX 30NM FM SUMMIT. OCNL VA EMS OBS IN WEBCAM THE PAST FEW HRS. VA FCST THRU T+6 HRS BASED ON NWP MDLS. ...COVERDALE NXT ADVISORY: WILL BE ISSUED BY 20230722/1815Z