FVXX20 KNES 280949 VA ADVISORY DTG: 20210328/0949Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/220 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: CONTG OCNL VA EMS. OBS VA DTG: 28/0930Z OBS VA CLD: SFC/FL150 N0005 W07750 - S0004 W07739 - S0005 W07740 - N0000 W07754 - N0005 W07750 MOV NW 5KT FCST VA CLD +6HR: 28/1530Z SFC/FL150 N0004 W07754 - S0003 W07739 - S0005 W07740 - S0000 W07758 - N0004 W07754 FCST VA CLD +12HR: 28/2130Z NO VA EXP FCST VA CLD +18HR: 29/0330Z NO VA EXP RMK: OCNL VA EMS OBS IN SAT MOV WNW AND DSIPTG WITHIN 15 NM OF SUMMIT. OBS VA FL ESTD FM NWP MDLS. LTLCG EXP IN FL WIND THRU T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210328/1545Z