FVXX22 KNES 141847 VA ADVISORY DTG: 20210814/1847Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/508 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: VA EMS OBS IN STLT IMAGERY OBS VA DTG: 14/1826Z OBS VA CLD: SFC/FL210 N1919 W09853 - N1902 W09836 - N1858 W09838 - N1907 W09901 - N1919 W09853 MOV NW 10KT FCST VA CLD +6HR: 15/0030Z SFC/FL210 N1919 W09904 - N1902 W09836 - N1858 W09838 - N1901 W09906 - N1919 W09904 FCST VA CLD +12HR: 15/0630Z NO VA EXP FCST VA CLD +18HR: 15/1230Z NO VA EXP RMK: VA EMS OBS IN STLT AND SUMMIT WEBCAM MOVG NW FM SUMMIT. VA HGT/DIR FM STLT AND NWP MDLS SHOWS A NW-LY TO WNW-LY MOVMT TREND THRU T+6. ...SAMBUCCI NXT ADVISORY: WILL BE ISSUED BY 20210815/0045Z