FVXX22 KNES 151825 VA ADVISORY DTG: 20210815/1825Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/512 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: OCNL VA EMS OBS IN STLT IMAGERY OBS VA DTG: 15/1811Z OBS VA CLD: SFC/FL200 N1902 W09838 - N1900 W09837 - N1852 W09844 - N1858 W09848 - N1902 W09838 MOV SW 10KT FCST VA CLD +6HR: 16/0000Z SFC/FL200 N1902 W09837 - N1900 W09835 - N1849 W09845 - N1858 W09850 - N1902 W09837 FCST VA CLD +12HR: 16/0600Z NO VA EXP FCST VA CLD +18HR: 16/1200Z NO VA EXP RMK: OCNL VA EMS OBS IN SUMMIT WEBCAM AND STLT MOVG SW FM SUMMIT. VA HGT FM PREV VAA. VA DIR FM STLT AND NWP MDLS SHOWS CONT SW-LY MOVMT THRU T+6. ...SAMBUCCI NXT ADVISORY: WILL BE ISSUED BY 20210816/0030Z