FVXX20 KNES 262108 VA ADVISORY DTG: 20171226/2108Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2017/316 INFO SOURCE: GOES-EAST. MEXICO CITY MWO. NWP MODELS. VOLCANO WEB CAMERA. ERUPTION DETAILS: ONGOING EMS OBS VA DTG: 26/2057Z OBS VA CLD: SFC/FL210 N1922 W09907 - N1902 W09837 - N1859 W09837 - N1916 W09909 - N1922 W09907 MOV NW 15-20KT FCST VA CLD +6HR: 27/0300Z SFC/FL210 N1937 W09910 - N1903 W09837 - N1900 W09837 - N1926 W09914 - N1937 W09910 FCST VA CLD +12HR: 27/0900Z SFC/FL210 N1927 W09914 - N1902 W09837 - N1900 W09837 - N1914 W09917 - N1927 W09914 FCST VA CLD +18HR: 27/1500Z SFC/FL210 N1926 W09914 - N1902 W09837 - N1859 W09837 - N1914 W09917 - N1926 W09914 RMK: IMAGERY SHOWS A PLUME OF GASES AND LIGHT VA EXTENDING 35 NMI NW OF THE SUMMIT. WEBCAMERA SHOWS CONTINUOUS EMS. ...SCHWARTZ NXT ADVISORY: WILL BE ISSUED BY 20171227/0315Z