FVXX22 KNES 091640 VA ADVISORY DTG: 20210609/1640Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/439 INFO SOURCE: GOES-16. VONA. NWP MODELS. ERUPTION DETAILS: FRQ VA EMS OBS OBS VA DTG: 09/1620Z OBS VA CLD: SFC/FL150 N0003 W07801 - S0002 W07738 - S0007 W07739 - S0007 W07801 - N0003 W07801 MOV W 15KT FCST VA CLD +6HR: 09/2230Z SFC/FL150 N0010 W07758 - S0002 W07738 - S0007 W07739 - S0004 W07814 - N0010 W07758 FCST VA CLD +12HR: 10/0430Z NO VA EXP FCST VA CLD +18HR: 10/1030Z NO VA EXP RMK: FRQ VA EMS OBS MOVG W FM 1537Z VONA AND UNDER WX CLDS ON STLT. NWP FCSTS WINDS TO SHFT MORE TO THE NW THRU T+6. FL FM NWP AND VONA ...MLEVINE NXT ADVISORY: WILL BE ISSUED BY 20210609/2245Z