FVXX20 KNES 040253 VA ADVISORY DTG: 20171004/0253Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2017/487 INFO SOURCE: NON-OPERATIONAL GOES-16. NWP MODELS. VOLCANO WEB CAMERA. ERUPTION DETAILS: ONGOING VA EMS. OBS VA DTG: 04/0215Z OBS VA CLD: SFC/FL170 S0004 W07740 - S0005 W07739 - S0016 W07749 - S0011 W07753 - S0004 W07740 MOV SW 5-10KT FCST VA CLD +6HR: 04/0830Z SFC/FL170 S0004 W07758 - S0004 W07740 - S0005 W07739 - S0010 W07756 - S0004 W07758 FCST VA CLD +12HR: 04/1430Z SFC/FL170 N0002 W07758 - S0004 W07740 - S0005 W07739 - S0004 W07759 - N0002 W07758 FCST VA CLD +18HR: 04/2030Z SFC/FL170 N0008 W07755 - S0005 W07739 - S0005 W07739 - N0001 W07757 - N0008 W07755 RMK: CONT EMS MOVING TWD THE SW. FCST PERIOD THROUGH T+18 SHOWS A GRADUAL TURN TWD THE W TO NW. ...BOLL NXT ADVISORY: WILL BE ISSUED BY 20171004/0900Z