FVXX21 KNES 181537 VA ADVISORY DTG: 20210418/1537Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2021/370 INFO SOURCE: GOES-16. WEBCAM. RADIOSONDE. ERUPTION DETAILS: LGT, INTERMITTENT VA EMS OBS VA DTG: 18/1526Z OBS VA CLD: SFC/FL160 N1907 W09828 - N1902 W09825 - N1858 W09836 - N1903 W09837 - N1907 W09828 MOV NE 10KT FCST VA CLD +6HR: 18/2130Z NO VA EXP FCST VA CLD +12HR: 19/0330Z NO VA EXP FCST VA CLD +18HR: 19/0930Z NO VA EXP RMK: LGT VA EMS OBS IN WEBCAM AND IN STLT MOVG NE BLW FL190. ASH DISSIPATES WI APPROX 25NMI FM SUMMIT. ...RAMIREZ NXT ADVISORY: WILL BE ISSUED BY 20210418/2130Z