FVXX21 KNES 130908 VA ADVISORY DTG: 20210113/0908Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/056 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: VA OBS IN SAT. OBS VA DTG: 13/0856Z OBS VA CLD: SFC/FL190 N1922 W09808 - N1912 W09803 - N1900 W09837 - N1902 W09837 - N1922 W09808 MOV NE 30KT FCST VA CLD +6HR: 13/1500Z SFC/FL190 N1923 W09759 - N1913 W09754 - N1859 W09837 - N1903 W09837 - N1923 W09759 FCST VA CLD +12HR: 13/2100Z NO VA EXP FCST VA CLD +18HR: 14/0300Z NO VA EXP RMK: VA CLD OBS EXT 30 NM NE FM SUMMIT. VA PLUME MAY BE PARTIALLY OBSCD BY WX CLDS. OBS VA FL ESTD FM NWP MDLS. LTLCG EXP IN FL WINDS THRU T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210113/1515Z