FVXX21 KNES 200112 VA ADVISORY DTG: 20210920/0112Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/798 INFO SOURCE: GOES-16. GEOPHYSICAL INST. ERUPTION DETAILS: NEW VA EMS OBS VA DTG: 20/0030Z OBS VA CLD: SFC/FL150 N0003 W07752 - S0004 W07739 - S0006 W07740 - S0003 W07755 - N0003 W07752 MOV NW 20KT FCST VA CLD +6HR: 20/0630Z SFC/FL150 N0007 W07758 - S0004 W07738 - S0006 W07740 - N0000 W07805 - N0007 W07758 FCST VA CLD +12HR: 20/1230Z SFC/FL150 N0011 W07804 - S0005 W07738 - S0006 W07738 - N0001 W07811 - N0011 W07804 FCST VA CLD +18HR: 20/1830Z SFC/FL150 N0015 W07811 - S0004 W07738 - S0006 W07740 - N0007 W07817 - N0015 W07811 RMK: VA OBS IN STLT MOVG NW FM SUMMIT AT 20KT BLW FL150. VA EXTDS FOR APPROX 15NMI THRU 0030Z. ASH IS FCSTD TO BECOME INCR THIN W INCR DIST. ...RAMIREZ NXT ADVISORY: WILL BE ISSUED BY 20210920/0715Z