FVXX21 KNES 071821 VA ADVISORY DTG: 20170707/1821Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2017/057 INFO SOURCE: GOES-EAST. EXPERIMENTAL GOES-16. CENAPRED. NOAA CIMSS ALERT ERUPTION DETAILS: NEW VA EM AT 07/1719Z OBS VA DTG: 07/1745Z OBS VA CLD: SFC/FL250 N1914 W09841 - N1907 W09837 - N1902 W09842 - N1908 W09850 - N1914 W09841 MOV NW 5-10KT FCST VA CLD +6HR: 08/0000Z SFC/FL250 NO ASH EXP FCST VA CLD +12HR: 08/0600Z NO ASH EXP FCST VA CLD +18HR: 08/1200Z NO ASH EXP RMK: VA EM RPT BY MULTIPLE AGENCIES AND SEEN IN VISIBLE STLT IMAGERY BUT NOT IN WEB CAM DUE TO WX CLOUDS OBSCURING VIEW OF SUMMIT. VA MOV NW OF SUMMIT. ...LEE NXT ADVISORY: WILL BE ISSUED BY 20170708/0015Z