FVXX20 KNES 312333 VA ADVISORY DTG: 20230731/2333Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2023/449 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: VONA RPTS VA EM 31/2236Z. EST VA DTG: 31/2310Z EST VA CLD: SFC/FL140 S0004 W07740 - S0005 W07740 - S0011 W07755 - S0005 W07756 - S0004 W07740 MOV SW 15KT FCST VA CLD +6HR: 01/0500Z SFC/FL140 S0000 W07757 - S0004 W07740 - S0005 W07739 - S0007 W07756 - S0000 W07757 FCST VA CLD +12HR: 01/1100Z NO VA EXP FCST VA CLD +18HR: 01/1700Z NO VA EXP RMK: VONA RPTS VA EM MOV SW BELOW FL140. VA NOT OBS IN SAT WITH PSBL MET CLD OBSCN. OBS VA AREA ESTD FM VONA AND WEBCAM. FL MVMT FCST TO TURN TO W BY T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20230801/0530Z