FVXX20 KNES 221040 VA ADVISORY DTG: 20170522/1040Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2017/029 INFO SOURCE: GOES-EAST. GFS WINDS. ERUPTION DETAILS: VA EM MOV SW OBS VA DTG: 22/1015Z OBS VA CLD: SFC/FL200 N1853 W09850 - N1849 W09843 - N1835 W09851 - N1838 W09859 - N1853 W09850 MOV SW 10KT FCST VA CLD +6HR: 22/1630Z SFC/FL200 NO ASH EXP FCST VA CLD +12HR: 22/2230Z NO ASH EXP FCST VA CLD +18HR: 23/0430Z NO ASH EXP RMK: T+0 CONFIDENCE HIGH. DISCRETE VA EM SEEN IN STLT. LEADING EDGE LOCATED APROX 26 NM SSW OF SUMMIT. VA EM APPEARS LGT AND EXPECTED TO DISP WITHIN 6 HRS. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20170522/1645Z