FVXX20 KNES 310937 VA ADVISORY DTG: 20171231/0937Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2017/337 INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS VOLCAT. VOLCANO WEB CAMERA. ERUPTION DETAILS: VA EM SEEN IN STLT IMAGES MOV E. OBS VA DTG: 31/0845Z OBS VA CLD: SFC/FL190 N1908 W09821 - N1903 W09819 - N1901 W09836 - N1901 W09837 - N1908 W09821 MOV E 10KT FCST VA CLD +6HR: 31/1500Z SFC/FL190 NO ASH EXP FCST VA CLD +12HR: 31/2100Z NO ASH EXP FCST VA CLD +18HR: 01/0300Z NO ASH EXP RMK: VA EXTD 16 NM ENE OF THE SUBMIT. VA FCST TO DISP WI 6 HRS. ...ZHU NXT ADVISORY: WILL BE ISSUED BY 20171231/1530Z