FVXX21 KNES 051720 VA ADVISORY DTG: 20210105/1720Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/020 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: NEW VA EMS OBS WITH CONT VA EMS OBS VA DTG: 05/1713Z OBS VA CLD: SFC/FL200 N2002 W09805 - N1905 W09834 - N1905 W09839 - N1938 W09847 - N2002 W09805 MOV NE 5KT SFC/FL230 N1925 W09744 - N1901 W09741 - N1905 W09837 - N1925 W09744 MOV NE 25KT FCST VA CLD +6HR: 05/2300Z SFC/FL200 N2016 W09748 - N1902 W09834 - N1905 W09838 - N1944 W09853 - N2016 W09748 FCST VA CLD +12HR: 06/0500Z SFC/FL200 N2027 W09736 - N1903 W09837 - N1947 W09849 - N2027 W09736 FCST VA CLD +18HR: 06/1100Z SFC/FL200 N2029 W09733 - N1903 W09838 - N1946 W09850 - N2029 W09733 RMK: NEW VA EMS OBS MOV E AT FL220 FCST TO DISP WITHIN T+6HRS. CONT VA EMS OBS MOV NE FM SUMMIT FCST TO CONT MOV NE THRU T+18HRS. VO WEB CAM REMAINS ACT AT SUMMIT WITH CONT EMS. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20210105/2315Z