FVXX22 KNES 202039 VA ADVISORY DTG: 20231020/2039Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2023/687 INFO SOURCE: GOES-16. VONA. WEBCAM. NWP MODELS. ERUPTION DETAILS: VONA RPRT RCVD OBS VA DTG: 20/2010Z OBS VA CLD: SFC/FL140 S0000 W07743 - S0005 W07739 - S0005 W07740 - S0004 W07745 - S0000 W07743 MOV NW 10KT FCST VA CLD +6HR: 21/0200Z SFC/FL140 N0006 W07755 - S0004 W07739 - S0005 W07739 - S0001 W07800 - N0006 W07755 FCST VA CLD +12HR: 21/0800Z NO VA EXP FCST VA CLD +18HR: 21/1400Z NO VA EXP RMK: RCNT VONA RPRT RCVD INDICATING A NEW VA EMS. PSBL VA EMS OBS JUST NW FM SUMMIT IN STLT IMAGERY. OBS VA AND FCST THRU T+6 HRS BASED ON STLT IMAGERY AND NWP MDLS. ...COVERDALE NXT ADVISORY: WILL BE ISSUED BY 20231021/0245Z