FVXX21 KNES 040039 VA ADVISORY DTG: 20180404/0039Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2018/336 INFO SOURCE: GOES-EAST. GUAYAQUIL MWO. NWP MODELS. CIMSS VOLCAT. ERUPTION DETAILS: ONGOING VA EMS OBS VA DTG: 04/0015Z OBS VA CLD: SFC/FL140 S0001 W07756 - S0003 W07740 - S0005 W07740 - S0009 W07756 - S0001 W07756 MOV W 5-10KT FCST VA CLD +6HR: 04/0630Z SFC/FL140 NO ASH EXP FCST VA CLD +12HR: 04/1230Z NO ASH EXP FCST VA CLD +18HR: 04/1830Z NO ASH EXP RMK: VA EXTD 15 NM FM THE SUMMIT, BUT IS VERY DIFFICULT TO DISCERN DUE TO WX CLDS. NWP MODEL SUGGESTS W MOV. ...ZHU NXT ADVISORY: WILL BE ISSUED BY 20180404/0645Z