FVXX23 KNES 180511 VA ADVISORY DTG: 20180918/0511Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2018/337 INFO SOURCE: GOES-EAST. CIMSS VOLCAT. VOLCANO WEB CAMERA. ERUPTION DETAILS: ONGOING VA EMS. OBS VA DTG: 18/0502Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL200 135/5KT FCST VA CLD +6HR: 18/1100Z FCST VA CLD +12HR: 18/1700Z FCST VA CLD +18HR: 18/2300Z RMK: ALTHOUGH EMS CANNOT BE SEEN IN STLT IMAGERY WEBCAM SHOWS PRONOUNCED INCANDESCENCE AND PLUME OF STEAM, GAS AND VA. NWP MLDS SUGGEST A NW DRIFT OF VA. ...LEE NXT ADVISORY: WILL BE ISSUED BY 20180918/1115Z