FVXX22 KNES 310856 VA ADVISORY DTG: 20180731/0856Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2018/290 INFO SOURCE: GOES-EAST. MEXICO CITY MWO. NWP MODELS. ERUPTION DETAILS: ONGOING VA EMS OBS VA DTG: 31/0830Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL220 045/5-10KT FCST VA CLD +6HR: 31/1430Z FCST VA CLD +12HR: 31/2030Z FCST VA CLD +18HR: 01/0230Z RMK: VA IS NOT OBS IN STLT IMAGERY DUE TO WX CLDS, ONLY HOT SPOT IS OBS. MWO RPRT INDICATES VA MOV NW AT FL220. NWP MODEL INDICATE A SW MOV AT THIS FL. THUS MODEL MOV DOES NOT AGREE WITH OBS MOV. ...ZHU NXT ADVISORY: WILL BE ISSUED BY 20180731/1500Z