FVXX20 KNES 310512 VA ADVISORY DTG: 20191231/0512Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2019/1448 INFO SOURCE: GOES-EAST. NWP MODELS. ERUPTION DETAILS: VA EM OBS VA DTG: 31/0450Z OBS VA CLD: SFC/FL180 S0004 W07739 - S0005 W07739 - S0012 W07758 - S0006 W07759 - S0004 W07739 MOV SW 10KT FCST VA CLD +6HR: 31/1100Z SFC/FL180 S0004 W07739 - S0005 W07739 - S0013 W07758 - S0007 W07800 - S0004 W07739 FCST VA CLD +12HR: 31/1700Z SFC/FL180 S0004 W07739 - S0005 W07739 - S0014 W07758 - S0008 W07759 - S0004 W07739 FCST VA CLD +18HR: 31/2300Z SFC/FL180 S0004 W07740 - S0005 W07739 - S0014 W07758 - S0006 W07800 - S0004 W07740 RMK: OCNL DISCRETE VA EM SEEN IN STLT MOV SW TO ABOUT 20 NM FROM SUMMIT BEFPRE DISAPPEARING IN DENS MET CLDS. ADDTNL VA EM EXPECTED BASED ON RECENT ACT. VA TO CONT MOV SW BASED ON MODELS ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20191231/1115Z