FVXX21 KNES 030654 VA ADVISORY DTG: 20190803/0654Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2019/837 INFO SOURCE: GOES-EAST. NWP MODELS. VOLCAT. ERUPTION DETAILS: VA EM POSS OBS VA DTG: 03/0630Z OBS VA CLD: SFC/FL150 N0003 W07759 - S0004 W07739 - S0006 W07739 - S0003 W07759 - N0003 W07759 MOV W 15-20KT FCST VA CLD +6HR: 03/1230Z SFC/FL150 N0004 W07801 - S0004 W07739 - S0006 W07738 - S0004 W07800 - N0004 W07801 FCST VA CLD +12HR: 03/1830Z SFC/FL150 N0004 W07800 - S0003 W07738 - S0006 W07739 - S0005 W07801 - N0004 W07800 FCST VA CLD +18HR: 04/0030Z SFC/FL150 N0004 W07801 - S0003 W07738 - S0006 W07738 - S0005 W07801 - N0004 W07801 RMK: POSS VA EM MOV W. VA NOT DETECTABLE IN STLT DUE DENS MET CLDS IN VCY. TYPICAL VA EM LIKELY EXTND APRX 20 NM FROM SUMMIT. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20190803/1300Z