FVXX25 KNES 280812 VA ADVISORY DTG: 20231128/0812Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2023/816 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: POSS VA EMS OBS VA DTG: 28/0740Z OBS VA CLD: SFC/FL140 S0004 W07739 - S0007 W07739 - S0015 W07801 - S0007 W07804 - S0004 W07739 MOV W 15KT FCST VA CLD +6HR: 28/1330Z NO VA EXP FCST VA CLD +12HR: 28/1930Z NO VA EXP FCST VA CLD +18HR: 29/0130Z NO VA EXP RMK: VA IS CURRENTLY NOT OBS ON STLT, BUT IS LIKELY IN THE AREA. VA IS DRAWN BASED ON NWP MDL WND AND PREV VAA. ...ZHU NXT ADVISORY: WILL BE ISSUED BY 20231128/1415Z