FVXX22 KNES 231856 VA ADVISORY DTG: 20171223/1856Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2017/803 INFO SOURCE: GOES-EAST. NWP MODELS. ERUPTION DETAILS: VA EMS OBS MOV W FROM SUMMIT OBS VA DTG: 23/1830Z OBS VA CLD: SFC/FL160 S0002 W07740 - S0007 W07740 - S0026 W07823 - S0004 W07831 - S0002 W07740 MOV W 5KT FCST VA CLD +6HR: 24/0030Z SFC/FL160 S0002 W07739 - S0007 W07739 - S0034 W07823 - S0013 W07832 - S0002 W07739 FCST VA CLD +12HR: 24/0630Z SFC/FL160 S0002 W07739 - S0007 W07738 - S0026 W07822 - S0006 W07831 - S0002 W07739 FCST VA CLD +18HR: 24/1230Z SFC/FL160 S0001 W07740 - S0006 W07738 - S0026 W07825 - S0004 W07831 - S0001 W07740 RMK: VA EMS OBS MOV W FROM SUMMIT. +18HR FORCAST BASED ON NWP GUIDANCE. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20171224/0100Z