FVXX22 KNES 171334 VA ADVISORY DTG: 20200617/1334Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2020/621 INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS. VOLCAT. RADIOSONDE. ERUPTION DETAILS: VA EM TO FL240 OBS VA DTG: 17/1326Z OBS VA CLD: SFC/FL210 N1902 W09840 - N1902 W09838 - N1831 W09830 - N1829 W09846 - N1902 W09840 MOV S 5-10KT SFC/FL240 N1910 W09846 - N1902 W09837 - N1901 W09837 - N1853 W09848 - N1910 W09846 MOV W 5-10KT FCST VA CLD +6HR: 17/1930Z SFC/FL240 NO ASH EXPSFC/FL210 N1902 W09837 - N1814 W09826 - N1813 W09849 - N1901 W09840 - N1902 W09837 FCST VA CLD +12HR: 18/0130Z SFC/FL210 N1902 W09838 - N1841 W09756 - N1820 W09809 - N1901 W09840 - N1902 W09838 FCST VA CLD +18HR: 18/0730Z NO ASH EXP RMK: VA EM OBS AT 1240Z FANNING OUT SLOWLY W 10 NM FM SUMMIT. HGT EST FM WEBCAM IMAGE AND NWP MDL WHICH DISAGREES W MMMX 12Z RAOB SO LOWER CONF IN HGT. OCNL EMS TO FL210 CONT WITH S-LY MVMT. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20200617/1930Z