FVXX24 KNES 071737 VA ADVISORY DTG: 20190907/1737Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2019/817 INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: VA EM OBS VA DTG: 07/1720Z OBS VA CLD: SFC/FL210 N1901 W09838 - N1900 W09835 - N1815 W09852 - N1816 W09910 - N1848 W09908 - N1901 W09838 MOV SW 10KT FCST VA CLD +6HR: 07/2330Z SFC/FL210 N1901 W09838 - N1859 W09835 - N1810 W09853 - N1811 W09914 - N1901 W09838 FCST VA CLD +12HR: 08/0530Z SFC/FL210 N1901 W09838 - N1900 W09834 - N1811 W09841 - N1811 W09909 - N1901 W09838 FCST VA CLD +18HR: 08/1130Z SFC/FL210 N1901 W09837 - N1859 W09835 - N1814 W09907 - N1824 W09923 - N1901 W09837 RMK: DISCRETE VA EM SEEN IN STLT AND WEB CAM. VA EXTND APRX 52 NM SW OF SUMMIT. VA EM TO CONT THRU FCST PERIOD BASED ON RECENT HISTORY. SKY MOSTLY CLR OF MET CLDS. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20190907/2330Z