FVXX21 KNES 200334 VA ADVISORY DTG: 20210420/0334Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/377 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA EMS MOV NE. OBS VA DTG: 20/0326Z OBS VA CLD: SFC/FL190 N1926 W09828 - N1922 W09820 - N1901 W09836 - N1902 W09837 - N1926 W09828 MOV NE 10KT FCST VA CLD +6HR: 20/0930Z SFC/FL190 N1940 W09821 - N1933 W09811 - N1901 W09835 - N1902 W09838 - N1940 W09821 FCST VA CLD +12HR: 20/1530Z NO VA EXP FCST VA CLD +18HR: 20/2130Z NO VA EXP RMK: VA OBS IN SAT EXT 25 NM NE FM SUMMIT. WEBCAM SHOWS MAINLY STEAM EMS WITH OCNL VA EMS. LTLCG FCST IN FL WINDS BY NWP MDLS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210420/0930Z