FVXX20 KNES 040829 VA ADVISORY DTG: 20210304/0829Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/249 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: NEW VA EM TO FL230 OBS VA DTG: 04/0821Z OBS VA CLD: SFC/FL200 N1902 W09837 - N1901 W09836 - N1844 W09855 - N1852 W09901 - N1902 W09837 MOV SW 15KT SFC/FL230 N1908 W09853 - N1902 W09837 - N1859 W09837 - N1901 W09855 - N1908 W09853 MOV W 10KT FCST VA CLD +6HR: 04/1430Z SFC/FL200 N1902 W09837 - N1901 W09835 - N1831 W09859 - N1838 W09907 - N1902 W09837 SFC/FL230 NO VA EXP FCST VA CLD +12HR: 04/2030Z SFC/FL200 N1902 W09839 - N1901 W09836 - N1832 W09901 - N1840 W09910 - N1902 W09839 FCST VA CLD +18HR: 05/0230Z NO VA EXP RMK: VA OBS MOV SW AT FL200 25 NM SW FM SUMMIT. VA OBS MOV WNW AT FL230 16 NM FM SUMMIT. OBS VA FLS ESTD FM NWP MDLS. WX CLDS INVOF SUMMIT OBSC PORTION OF PLUMES. FL200 MVMT EXP TO PERSIST THRU T+12 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210304/1430Z